diff options
Diffstat (limited to 'crypto/evp/e_aes.c')
| -rw-r--r-- | crypto/evp/e_aes.c | 2268 |
1 files changed, 1089 insertions, 1179 deletions
diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index dc3c2a162a5e..245c18a69392 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -6,7 +6,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -50,1326 +50,1236 @@ #include <openssl/opensslconf.h> #ifndef OPENSSL_NO_AES -#include <openssl/evp.h> -#include <openssl/err.h> -#include <string.h> -#include <assert.h> -#include <openssl/aes.h> -#include "evp_locl.h" -#ifndef OPENSSL_FIPS -#include "modes_lcl.h" -#include <openssl/rand.h> - -typedef struct - { - AES_KEY ks; - block128_f block; - union { - cbc128_f cbc; - ctr128_f ctr; - } stream; - } EVP_AES_KEY; - -typedef struct - { - AES_KEY ks; /* AES key schedule to use */ - int key_set; /* Set if key initialised */ - int iv_set; /* Set if an iv is set */ - GCM128_CONTEXT gcm; - unsigned char *iv; /* Temporary IV store */ - int ivlen; /* IV length */ - int taglen; - int iv_gen; /* It is OK to generate IVs */ - int tls_aad_len; /* TLS AAD length */ - ctr128_f ctr; - } EVP_AES_GCM_CTX; - -typedef struct - { - AES_KEY ks1, ks2; /* AES key schedules to use */ - XTS128_CONTEXT xts; - void (*stream)(const unsigned char *in, - unsigned char *out, size_t length, - const AES_KEY *key1, const AES_KEY *key2, - const unsigned char iv[16]); - } EVP_AES_XTS_CTX; - -typedef struct - { - AES_KEY ks; /* AES key schedule to use */ - int key_set; /* Set if key initialised */ - int iv_set; /* Set if an iv is set */ - int tag_set; /* Set if tag is valid */ - int len_set; /* Set if message length set */ - int L, M; /* L and M parameters from RFC3610 */ - CCM128_CONTEXT ccm; - ccm128_f str; - } EVP_AES_CCM_CTX; - -#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4)) - -#ifdef VPAES_ASM +# include <openssl/evp.h> +# include <openssl/err.h> +# include <string.h> +# include <assert.h> +# include <openssl/aes.h> +# include "evp_locl.h" +# ifndef OPENSSL_FIPS +# include "modes_lcl.h" +# include <openssl/rand.h> + +typedef struct { + AES_KEY ks; + block128_f block; + union { + cbc128_f cbc; + ctr128_f ctr; + } stream; +} EVP_AES_KEY; + +typedef struct { + AES_KEY ks; /* AES key schedule to use */ + int key_set; /* Set if key initialised */ + int iv_set; /* Set if an iv is set */ + GCM128_CONTEXT gcm; + unsigned char *iv; /* Temporary IV store */ + int ivlen; /* IV length */ + int taglen; + int iv_gen; /* It is OK to generate IVs */ + int tls_aad_len; /* TLS AAD length */ + ctr128_f ctr; +} EVP_AES_GCM_CTX; + +typedef struct { + AES_KEY ks1, ks2; /* AES key schedules to use */ + XTS128_CONTEXT xts; + void (*stream) (const unsigned char *in, + unsigned char *out, size_t length, + const AES_KEY *key1, const AES_KEY *key2, + const unsigned char iv[16]); +} EVP_AES_XTS_CTX; + +typedef struct { + AES_KEY ks; /* AES key schedule to use */ + int key_set; /* Set if key initialised */ + int iv_set; /* Set if an iv is set */ + int tag_set; /* Set if tag is valid */ + int len_set; /* Set if message length set */ + int L, M; /* L and M parameters from RFC3610 */ + CCM128_CONTEXT ccm; + ccm128_f str; +} EVP_AES_CCM_CTX; + +# define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4)) + +# ifdef VPAES_ASM int vpaes_set_encrypt_key(const unsigned char *userKey, int bits, - AES_KEY *key); + AES_KEY *key); int vpaes_set_decrypt_key(const unsigned char *userKey, int bits, - AES_KEY *key); + AES_KEY *key); void vpaes_encrypt(const unsigned char *in, unsigned char *out, - const AES_KEY *key); + const AES_KEY *key); void vpaes_decrypt(const unsigned char *in, unsigned char *out, - const AES_KEY *key); + const AES_KEY *key); void vpaes_cbc_encrypt(const unsigned char *in, - unsigned char *out, - size_t length, - const AES_KEY *key, - unsigned char *ivec, int enc); -#endif -#ifdef BSAES_ASM + unsigned char *out, + size_t length, + const AES_KEY *key, unsigned char *ivec, int enc); +# endif +# ifdef BSAES_ASM void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out, - size_t length, const AES_KEY *key, - unsigned char ivec[16], int enc); + size_t length, const AES_KEY *key, + unsigned char ivec[16], int enc); void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out, - size_t len, const AES_KEY *key, - const unsigned char ivec[16]); + size_t len, const AES_KEY *key, + const unsigned char ivec[16]); void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out, - size_t len, const AES_KEY *key1, - const AES_KEY *key2, const unsigned char iv[16]); + size_t len, const AES_KEY *key1, + const AES_KEY *key2, const unsigned char iv[16]); void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out, - size_t len, const AES_KEY *key1, - const AES_KEY *key2, const unsigned char iv[16]); -#endif -#ifdef AES_CTR_ASM + size_t len, const AES_KEY *key1, + const AES_KEY *key2, const unsigned char iv[16]); +# endif +# ifdef AES_CTR_ASM void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out, - size_t blocks, const AES_KEY *key, - const unsigned char ivec[AES_BLOCK_SIZE]); -#endif -#ifdef AES_XTS_ASM -void AES_xts_encrypt(const char *inp,char *out,size_t len, - const AES_KEY *key1, const AES_KEY *key2, - const unsigned char iv[16]); -void AES_xts_decrypt(const char *inp,char *out,size_t len, - const AES_KEY *key1, const AES_KEY *key2, - const unsigned char iv[16]); -#endif - -#if defined(AES_ASM) && !defined(I386_ONLY) && ( \ - ((defined(__i386) || defined(__i386__) || \ - defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \ - defined(__x86_64) || defined(__x86_64__) || \ - defined(_M_AMD64) || defined(_M_X64) || \ - defined(__INTEL__) ) + size_t blocks, const AES_KEY *key, + const unsigned char ivec[AES_BLOCK_SIZE]); +# endif +# ifdef AES_XTS_ASM +void AES_xts_encrypt(const char *inp, char *out, size_t len, + const AES_KEY *key1, const AES_KEY *key2, + const unsigned char iv[16]); +void AES_xts_decrypt(const char *inp, char *out, size_t len, + const AES_KEY *key1, const AES_KEY *key2, + const unsigned char iv[16]); +# endif + +# if defined(AES_ASM) && !defined(I386_ONLY) && ( \ + ((defined(__i386) || defined(__i386__) || \ + defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \ + defined(__x86_64) || defined(__x86_64__) || \ + defined(_M_AMD64) || defined(_M_X64) || \ + defined(__INTEL__) ) extern unsigned int OPENSSL_ia32cap_P[2]; -#ifdef VPAES_ASM -#define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32))) -#endif -#ifdef BSAES_ASM -#define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32))) -#endif +# ifdef VPAES_ASM +# define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32))) +# endif +# ifdef BSAES_ASM +# define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32))) +# endif /* * AES-NI section */ -#define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32))) +# define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32))) int aesni_set_encrypt_key(const unsigned char *userKey, int bits, - AES_KEY *key); + AES_KEY *key); int aesni_set_decrypt_key(const unsigned char *userKey, int bits, - AES_KEY *key); + AES_KEY *key); void aesni_encrypt(const unsigned char *in, unsigned char *out, - const AES_KEY *key); + const AES_KEY *key); void aesni_decrypt(const unsigned char *in, unsigned char *out, - const AES_KEY *key); + const AES_KEY *key); void aesni_ecb_encrypt(const unsigned char *in, - unsigned char *out, - size_t length, - const AES_KEY *key, - int enc); + unsigned char *out, + size_t length, const AES_KEY *key, int enc); void aesni_cbc_encrypt(const unsigned char *in, - unsigned char *out, - size_t length, - const AES_KEY *key, - unsigned char *ivec, int enc); + unsigned char *out, + size_t length, + const AES_KEY *key, unsigned char *ivec, int enc); void aesni_ctr32_encrypt_blocks(const unsigned char *in, - unsigned char *out, - size_t blocks, - const void *key, - const unsigned char *ivec); + unsigned char *out, + size_t blocks, + const void *key, const unsigned char *ivec); void aesni_xts_encrypt(const unsigned char *in, - unsigned char *out, - size_t length, - const AES_KEY *key1, const AES_KEY *key2, - const unsigned char iv[16]); + unsigned char *out, + size_t length, + const AES_KEY *key1, const AES_KEY *key2, + const unsigned char iv[16]); void aesni_xts_decrypt(const unsigned char *in, - unsigned char *out, - size_t length, - const AES_KEY *key1, const AES_KEY *key2, - const unsigned char iv[16]); - -void aesni_ccm64_encrypt_blocks (const unsigned char *in, - unsigned char *out, - size_t blocks, - const void *key, - const unsigned char ivec[16], - unsigned char cmac[16]); - -void aesni_ccm64_decrypt_blocks (const unsigned char *in, - unsigned char *out, - size_t blocks, - const void *key, - const unsigned char ivec[16], - unsigned char cmac[16]); + unsigned char *out, + size_t length, + const AES_KEY *key1, const AES_KEY *key2, + const unsigned char iv[16]); + +void aesni_ccm64_encrypt_blocks(const unsigned char *in, + unsigned char *out, + size_t blocks, + const void *key, + const unsigned char ivec[16], + unsigned char cmac[16]); + +void aesni_ccm64_decrypt_blocks(const unsigned char *in, + unsigned char *out, + size_t blocks, + const void *key, + const unsigned char ivec[16], + unsigned char cmac[16]); static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - int ret, mode; - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; - - mode = ctx->cipher->flags & EVP_CIPH_MODE; - if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) - && !enc) - { - ret = aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data); - dat->block = (block128_f)aesni_decrypt; - dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? - (cbc128_f)aesni_cbc_encrypt : - NULL; - } - else { - ret = aesni_set_encrypt_key(key, ctx->key_len*8, ctx->cipher_data); - dat->block = (block128_f)aesni_encrypt; - if (mode==EVP_CIPH_CBC_MODE) - dat->stream.cbc = (cbc128_f)aesni_cbc_encrypt; - else if (mode==EVP_CIPH_CTR_MODE) - dat->stream.ctr = (ctr128_f)aesni_ctr32_encrypt_blocks; - else - dat->stream.cbc = NULL; - } - - if(ret < 0) - { - EVPerr(EVP_F_AESNI_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED); - return 0; - } - - return 1; - } - -static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in, size_t len) + const unsigned char *iv, int enc) +{ + int ret, mode; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + + mode = ctx->cipher->flags & EVP_CIPH_MODE; + if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) + && !enc) { + ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data); + dat->block = (block128_f) aesni_decrypt; + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) aesni_cbc_encrypt : NULL; + } else { + ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data); + dat->block = (block128_f) aesni_encrypt; + if (mode == EVP_CIPH_CBC_MODE) + dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt; + else if (mode == EVP_CIPH_CTR_MODE) + dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks; + else + dat->stream.cbc = NULL; + } + + if (ret < 0) { + EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED); + return 0; + } + + return 1; +} + +static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - aesni_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt); + aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt); - return 1; + return 1; } -static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in, size_t len) +static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - size_t bl = ctx->cipher->block_size; + size_t bl = ctx->cipher->block_size; - if (len<bl) return 1; + if (len < bl) + return 1; - aesni_ecb_encrypt(in,out,len,ctx->cipher_data,ctx->encrypt); + aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt); - return 1; + return 1; } -#define aesni_ofb_cipher aes_ofb_cipher -static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len); +# define aesni_ofb_cipher aes_ofb_cipher +static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); -#define aesni_cfb_cipher aes_cfb_cipher -static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len); +# define aesni_cfb_cipher aes_cfb_cipher +static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); -#define aesni_cfb8_cipher aes_cfb8_cipher -static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len); +# define aesni_cfb8_cipher aes_cfb8_cipher +static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); -#define aesni_cfb1_cipher aes_cfb1_cipher -static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len); +# define aesni_cfb1_cipher aes_cfb1_cipher +static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); -#define aesni_ctr_cipher aes_ctr_cipher +# define aesni_ctr_cipher aes_ctr_cipher static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len); + const unsigned char *in, size_t len); static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; - if (!iv && !key) - return 1; - if (key) - { - aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); - CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, - (block128_f)aesni_encrypt); - gctx->ctr = (ctr128_f)aesni_ctr32_encrypt_blocks; - /* If we have an iv can set it directly, otherwise use - * saved IV. - */ - if (iv == NULL && gctx->iv_set) - iv = gctx->iv; - if (iv) - { - CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); - gctx->iv_set = 1; - } - gctx->key_set = 1; - } - else - { - /* If key set use IV, otherwise copy */ - if (gctx->key_set) - CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); - else - memcpy(gctx->iv, iv, gctx->ivlen); - gctx->iv_set = 1; - gctx->iv_gen = 0; - } - return 1; - } - -#define aesni_gcm_cipher aes_gcm_cipher + const unsigned char *iv, int enc) +{ + EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + if (!iv && !key) + return 1; + if (key) { + aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); + CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt); + gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks; + /* + * If we have an iv can set it directly, otherwise use saved IV. + */ + if (iv == NULL && gctx->iv_set) + iv = gctx->iv; + if (iv) { + CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); + gctx->iv_set = 1; + } + gctx->key_set = 1; + } else { + /* If key set use IV, otherwise copy */ + if (gctx->key_set) + CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); + else + memcpy(gctx->iv, iv, gctx->ivlen); + gctx->iv_set = 1; + gctx->iv_gen = 0; + } + return 1; +} + +# define aesni_gcm_cipher aes_gcm_cipher static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len); + const unsigned char *in, size_t len); static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - EVP_AES_XTS_CTX *xctx = ctx->cipher_data; - if (!iv && !key) - return 1; - - if (key) - { - /* key_len is two AES keys */ - if (enc) - { - aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); - xctx->xts.block1 = (block128_f)aesni_encrypt; - xctx->stream = aesni_xts_encrypt; - } - else - { - aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); - xctx->xts.block1 = (block128_f)aesni_decrypt; - xctx->stream = aesni_xts_decrypt; - } - - aesni_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2); - xctx->xts.block2 = (block128_f)aesni_encrypt; - - xctx->xts.key1 = &xctx->ks1; - } - - if (iv) - { - xctx->xts.key2 = &xctx->ks2; - memcpy(ctx->iv, iv, 16); - } - - return 1; - } - -#define aesni_xts_cipher aes_xts_cipher + const unsigned char *iv, int enc) +{ + EVP_AES_XTS_CTX *xctx = ctx->cipher_data; + if (!iv && !key) + return 1; + + if (key) { + /* key_len is two AES keys */ + if (enc) { + aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); + xctx->xts.block1 = (block128_f) aesni_encrypt; + xctx->stream = aesni_xts_encrypt; + } else { + aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); + xctx->xts.block1 = (block128_f) aesni_decrypt; + xctx->stream = aesni_xts_decrypt; + } + + aesni_set_encrypt_key(key + ctx->key_len / 2, + ctx->key_len * 4, &xctx->ks2); + xctx->xts.block2 = (block128_f) aesni_encrypt; + + xctx->xts.key1 = &xctx->ks1; + } + + if (iv) { + xctx->xts.key2 = &xctx->ks2; + memcpy(ctx->iv, iv, 16); + } + + return 1; +} + +# define aesni_xts_cipher aes_xts_cipher static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len); + const unsigned char *in, size_t len); static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; - if (!iv && !key) - return 1; - if (key) - { - aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks); - CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, - &cctx->ks, (block128_f)aesni_encrypt); - cctx->str = enc?(ccm128_f)aesni_ccm64_encrypt_blocks : - (ccm128_f)aesni_ccm64_decrypt_blocks; - cctx->key_set = 1; - } - if (iv) - { - memcpy(ctx->iv, iv, 15 - cctx->L); - cctx->iv_set = 1; - } - return 1; - } - -#define aesni_ccm_cipher aes_ccm_cipher + const unsigned char *iv, int enc) +{ + EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + if (!iv && !key) + return 1; + if (key) { + aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks); + CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, + &cctx->ks, (block128_f) aesni_encrypt); + cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks : + (ccm128_f) aesni_ccm64_decrypt_blocks; + cctx->key_set = 1; + } + if (iv) { + memcpy(ctx->iv, iv, 15 - cctx->L); + cctx->iv_set = 1; + } + return 1; +} + +# define aesni_ccm_cipher aes_ccm_cipher static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len); + const unsigned char *in, size_t len); -#define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \ +# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \ static const EVP_CIPHER aesni_##keylen##_##mode = { \ - nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \ - flags|EVP_CIPH_##MODE##_MODE, \ - aesni_init_key, \ - aesni_##mode##_cipher, \ - NULL, \ - sizeof(EVP_AES_KEY), \ - NULL,NULL,NULL,NULL }; \ + nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + aesni_init_key, \ + aesni_##mode##_cipher, \ + NULL, \ + sizeof(EVP_AES_KEY), \ + NULL,NULL,NULL,NULL }; \ static const EVP_CIPHER aes_##keylen##_##mode = { \ - nid##_##keylen##_##nmode,blocksize, \ - keylen/8,ivlen, \ - flags|EVP_CIPH_##MODE##_MODE, \ - aes_init_key, \ - aes_##mode##_cipher, \ - NULL, \ - sizeof(EVP_AES_KEY), \ - NULL,NULL,NULL,NULL }; \ + nid##_##keylen##_##nmode,blocksize, \ + keylen/8,ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + aes_init_key, \ + aes_##mode##_cipher, \ + NULL, \ + sizeof(EVP_AES_KEY), \ + NULL,NULL,NULL,NULL }; \ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \ { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; } -#define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \ +# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \ static const EVP_CIPHER aesni_##keylen##_##mode = { \ - nid##_##keylen##_##mode,blocksize, \ - (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \ - flags|EVP_CIPH_##MODE##_MODE, \ - aesni_##mode##_init_key, \ - aesni_##mode##_cipher, \ - aes_##mode##_cleanup, \ - sizeof(EVP_AES_##MODE##_CTX), \ - NULL,NULL,aes_##mode##_ctrl,NULL }; \ + nid##_##keylen##_##mode,blocksize, \ + (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + aesni_##mode##_init_key, \ + aesni_##mode##_cipher, \ + aes_##mode##_cleanup, \ + sizeof(EVP_AES_##MODE##_CTX), \ + NULL,NULL,aes_##mode##_ctrl,NULL }; \ static const EVP_CIPHER aes_##keylen##_##mode = { \ - nid##_##keylen##_##mode,blocksize, \ - (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \ - flags|EVP_CIPH_##MODE##_MODE, \ - aes_##mode##_init_key, \ - aes_##mode##_cipher, \ - aes_##mode##_cleanup, \ - sizeof(EVP_AES_##MODE##_CTX), \ - NULL,NULL,aes_##mode##_ctrl,NULL }; \ + nid##_##keylen##_##mode,blocksize, \ + (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + aes_##mode##_init_key, \ + aes_##mode##_cipher, \ + aes_##mode##_cleanup, \ + sizeof(EVP_AES_##MODE##_CTX), \ + NULL,NULL,aes_##mode##_ctrl,NULL }; \ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \ { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; } -#else +# else -#define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \ +# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \ static const EVP_CIPHER aes_##keylen##_##mode = { \ - nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \ - flags|EVP_CIPH_##MODE##_MODE, \ - aes_init_key, \ - aes_##mode##_cipher, \ - NULL, \ - sizeof(EVP_AES_KEY), \ - NULL,NULL,NULL,NULL }; \ + nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + aes_init_key, \ + aes_##mode##_cipher, \ + NULL, \ + sizeof(EVP_AES_KEY), \ + NULL,NULL,NULL,NULL }; \ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \ { return &aes_##keylen##_##mode; } -#define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \ +# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \ static const EVP_CIPHER aes_##keylen##_##mode = { \ - nid##_##keylen##_##mode,blocksize, \ - (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \ - flags|EVP_CIPH_##MODE##_MODE, \ - aes_##mode##_init_key, \ - aes_##mode##_cipher, \ - aes_##mode##_cleanup, \ - sizeof(EVP_AES_##MODE##_CTX), \ - NULL,NULL,aes_##mode##_ctrl,NULL }; \ + nid##_##keylen##_##mode,blocksize, \ + (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + aes_##mode##_init_key, \ + aes_##mode##_cipher, \ + aes_##mode##_cleanup, \ + sizeof(EVP_AES_##MODE##_CTX), \ + NULL,NULL,aes_##mode##_ctrl,NULL }; \ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \ { return &aes_##keylen##_##mode; } -#endif +# endif -#define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \ - BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ - BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ - BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ - BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ - BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \ - BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \ - BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags) +# define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \ + BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ + BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ + BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ + BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ + BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \ + BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \ + BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags) static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - int ret, mode; - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; - - mode = ctx->cipher->flags & EVP_CIPH_MODE; - if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) - && !enc) -#ifdef BSAES_CAPABLE - if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE) - { - ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks); - dat->block = (block128_f)AES_decrypt; - dat->stream.cbc = (cbc128_f)bsaes_cbc_encrypt; - } - else -#endif -#ifdef VPAES_CAPABLE - if (VPAES_CAPABLE) - { - ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks); - dat->block = (block128_f)vpaes_decrypt; - dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? - (cbc128_f)vpaes_cbc_encrypt : - NULL; - } - else -#endif - { - ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks); - dat->block = (block128_f)AES_decrypt; - dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? - (cbc128_f)AES_cbc_encrypt : - NULL; - } - else -#ifdef BSAES_CAPABLE - if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE) - { - ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks); - dat->block = (block128_f)AES_encrypt; - dat->stream.ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks; - } - else -#endif -#ifdef VPAES_CAPABLE - if (VPAES_CAPABLE) - { - ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks); - dat->block = (block128_f)vpaes_encrypt; - dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? - (cbc128_f)vpaes_cbc_encrypt : - NULL; - } - else -#endif - { - ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks); - dat->block = (block128_f)AES_encrypt; - dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? - (cbc128_f)AES_cbc_encrypt : - NULL; -#ifdef AES_CTR_ASM - if (mode==EVP_CIPH_CTR_MODE) - dat->stream.ctr = (ctr128_f)AES_ctr32_encrypt; -#endif - } - - if(ret < 0) - { - EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED); - return 0; - } - - return 1; - } + const unsigned char *iv, int enc) +{ + int ret, mode; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + + mode = ctx->cipher->flags & EVP_CIPH_MODE; + if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) + && !enc) +# ifdef BSAES_CAPABLE + if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) { + ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks); + dat->block = (block128_f) AES_decrypt; + dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt; + } else +# endif +# ifdef VPAES_CAPABLE + if (VPAES_CAPABLE) { + ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks); + dat->block = (block128_f) vpaes_decrypt; + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) vpaes_cbc_encrypt : NULL; + } else +# endif + { + ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks); + dat->block = (block128_f) AES_decrypt; + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) AES_cbc_encrypt : NULL; + } else +# ifdef BSAES_CAPABLE + if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) { + ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks); + dat->block = (block128_f) AES_encrypt; + dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks; + } else +# endif +# ifdef VPAES_CAPABLE + if (VPAES_CAPABLE) { + ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks); + dat->block = (block128_f) vpaes_encrypt; + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) vpaes_cbc_encrypt : NULL; + } else +# endif + { + ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks); + dat->block = (block128_f) AES_encrypt; + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) AES_cbc_encrypt : NULL; +# ifdef AES_CTR_ASM + if (mode == EVP_CIPH_CTR_MODE) + dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt; +# endif + } + + if (ret < 0) { + EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED); + return 0; + } + + return 1; +} -static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in, size_t len) +static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; - if (dat->stream.cbc) - (*dat->stream.cbc)(in,out,len,&dat->ks,ctx->iv,ctx->encrypt); - else if (ctx->encrypt) - CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block); - else - CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block); + if (dat->stream.cbc) + (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt); + else if (ctx->encrypt) + CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block); + else + CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block); - return 1; + return 1; } -static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in, size_t len) +static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - size_t bl = ctx->cipher->block_size; - size_t i; - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; + size_t bl = ctx->cipher->block_size; + size_t i; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; - if (len<bl) return 1; + if (len < bl) + return 1; - for (i=0,len-=bl;i<=len;i+=bl) - (*dat->block)(in+i,out+i,&dat->ks); + for (i = 0, len -= bl; i <= len; i += bl) + (*dat->block) (in + i, out + i, &dat->ks); - return 1; + return 1; } -static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len) +static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; - CRYPTO_ofb128_encrypt(in,out,len,&dat->ks, - ctx->iv,&ctx->num,dat->block); - return 1; + CRYPTO_ofb128_encrypt(in, out, len, &dat->ks, + ctx->iv, &ctx->num, dat->block); + return 1; } -static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len) +static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; - CRYPTO_cfb128_encrypt(in,out,len,&dat->ks, - ctx->iv,&ctx->num,ctx->encrypt,dat->block); - return 1; + CRYPTO_cfb128_encrypt(in, out, len, &dat->ks, + ctx->iv, &ctx->num, ctx->encrypt, dat->block); + return 1; } -static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len) +static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; - CRYPTO_cfb128_8_encrypt(in,out,len,&dat->ks, - ctx->iv,&ctx->num,ctx->encrypt,dat->block); - return 1; + CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks, + ctx->iv, &ctx->num, ctx->encrypt, dat->block); + return 1; } -static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, - const unsigned char *in,size_t len) +static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; - - if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) { - CRYPTO_cfb128_1_encrypt(in,out,len,&dat->ks, - ctx->iv,&ctx->num,ctx->encrypt,dat->block); - return 1; - } - - while (len>=MAXBITCHUNK) { - CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,&dat->ks, - ctx->iv,&ctx->num,ctx->encrypt,dat->block); - len-=MAXBITCHUNK; - } - if (len) - CRYPTO_cfb128_1_encrypt(in,out,len*8,&dat->ks, - ctx->iv,&ctx->num,ctx->encrypt,dat->block); - - return 1; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + + if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) { + CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks, + ctx->iv, &ctx->num, ctx->encrypt, dat->block); + return 1; + } + + while (len >= MAXBITCHUNK) { + CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks, + ctx->iv, &ctx->num, ctx->encrypt, dat->block); + len -= MAXBITCHUNK; + } + if (len) + CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks, + ctx->iv, &ctx->num, ctx->encrypt, dat->block); + + return 1; } -static int aes_ctr_cipher (EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len) +static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) { - unsigned int num = ctx->num; - EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data; - - if (dat->stream.ctr) - CRYPTO_ctr128_encrypt_ctr32(in,out,len,&dat->ks, - ctx->iv,ctx->buf,&num,dat->stream.ctr); - else - CRYPTO_ctr128_encrypt(in,out,len,&dat->ks, - ctx->iv,ctx->buf,&num,dat->block); - ctx->num = (size_t)num; - return 1; + unsigned int num = ctx->num; + EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + + if (dat->stream.ctr) + CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks, + ctx->iv, ctx->buf, &num, dat->stream.ctr); + else + CRYPTO_ctr128_encrypt(in, out, len, &dat->ks, + ctx->iv, ctx->buf, &num, dat->block); + ctx->num = (size_t)num; + return 1; } -BLOCK_CIPHER_generic_pack(NID_aes,128,EVP_CIPH_FLAG_FIPS) -BLOCK_CIPHER_generic_pack(NID_aes,192,EVP_CIPH_FLAG_FIPS) -BLOCK_CIPHER_generic_pack(NID_aes,256,EVP_CIPH_FLAG_FIPS) +BLOCK_CIPHER_generic_pack(NID_aes, 128, EVP_CIPH_FLAG_FIPS) + BLOCK_CIPHER_generic_pack(NID_aes, 192, EVP_CIPH_FLAG_FIPS) + BLOCK_CIPHER_generic_pack(NID_aes, 256, EVP_CIPH_FLAG_FIPS) static int aes_gcm_cleanup(EVP_CIPHER_CTX *c) - { - EVP_AES_GCM_CTX *gctx = c->cipher_data; - OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm)); - if (gctx->iv != c->iv) - OPENSSL_free(gctx->iv); - return 1; - } +{ + EVP_AES_GCM_CTX *gctx = c->cipher_data; + OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm)); + if (gctx->iv != c->iv) + OPENSSL_free(gctx->iv); + return 1; +} /* increment counter (64-bit int) by 1 */ -static void ctr64_inc(unsigned char *counter) { - int n=8; - unsigned char c; - - do { - --n; - c = counter[n]; - ++c; - counter[n] = c; - if (c) return; - } while (n); +static void ctr64_inc(unsigned char *counter) +{ + int n = 8; + unsigned char c; + + do { + --n; + c = counter[n]; + ++c; + counter[n] = c; + if (c) + return; + } while (n); } static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) - { - EVP_AES_GCM_CTX *gctx = c->cipher_data; - switch (type) - { - case EVP_CTRL_INIT: - gctx->key_set = 0; - gctx->iv_set = 0; - gctx->ivlen = c->cipher->iv_len; - gctx->iv = c->iv; - gctx->taglen = -1; - gctx->iv_gen = 0; - gctx->tls_aad_len = -1; - return 1; - - case EVP_CTRL_GCM_SET_IVLEN: - if (arg <= 0) - return 0; -#ifdef OPENSSL_FIPS - if (FIPS_module_mode() && !(c->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) - && arg < 12) - return 0; -#endif - /* Allocate memory for IV if needed */ - if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) - { - if (gctx->iv != c->iv) - OPENSSL_free(gctx->iv); - gctx->iv = OPENSSL_malloc(arg); - if (!gctx->iv) - return 0; - } - gctx->ivlen = arg; - return 1; - - case EVP_CTRL_GCM_SET_TAG: - if (arg <= 0 || arg > 16 || c->encrypt) - return 0; - memcpy(c->buf, ptr, arg); - gctx->taglen = arg; - return 1; - - case EVP_CTRL_GCM_GET_TAG: - if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0) - return 0; - memcpy(ptr, c->buf, arg); - return 1; - - case EVP_CTRL_GCM_SET_IV_FIXED: - /* Special case: -1 length restores whole IV */ - if (arg == -1) - { - memcpy(gctx->iv, ptr, gctx->ivlen); - gctx->iv_gen = 1; - return 1; - } - /* Fixed field must be at least 4 bytes and invocation field - * at least 8. - */ - if ((arg < 4) || (gctx->ivlen - arg) < 8) - return 0; - if (arg) - memcpy(gctx->iv, ptr, arg); - if (c->encrypt && - RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0) - return 0; - gctx->iv_gen = 1; - return 1; - - case EVP_CTRL_GCM_IV_GEN: - if (gctx->iv_gen == 0 || gctx->key_set == 0) - return 0; - CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen); - if (arg <= 0 || arg > gctx->ivlen) - arg = gctx->ivlen; - memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg); - /* Invocation field will be at least 8 bytes in size and - * so no need to check wrap around or increment more than - * last 8 bytes. - */ - ctr64_inc(gctx->iv + gctx->ivlen - 8); - gctx->iv_set = 1; - return 1; - - case EVP_CTRL_GCM_SET_IV_INV: - if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt) - return 0; - memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg); - CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen); - gctx->iv_set = 1; - return 1; - - case EVP_CTRL_AEAD_TLS1_AAD: - /* Save the AAD for later use */ - if (arg != 13) - return 0; - memcpy(c->buf, ptr, arg); - gctx->tls_aad_len = arg; - { - unsigned int len=c->buf[arg-2]<<8|c->buf[arg-1]; - /* Correct length for explicit IV */ - len -= EVP_GCM_TLS_EXPLICIT_IV_LEN; - /* If decrypting correct for tag too */ - if (!c->encrypt) - len -= EVP_GCM_TLS_TAG_LEN; - c->buf[arg-2] = len>>8; - c->buf[arg-1] = len & 0xff; - } - /* Extra padding: tag appended to record */ - return EVP_GCM_TLS_TAG_LEN; - - case EVP_CTRL_COPY: - { - EVP_CIPHER_CTX *out = ptr; - EVP_AES_GCM_CTX *gctx_out = out->cipher_data; - if (gctx->gcm.key) - { - if (gctx->gcm.key != &gctx->ks) - return 0; - gctx_out->gcm.key = &gctx_out->ks; - } - if (gctx->iv == c->iv) - gctx_out->iv = out->iv; - else - { - gctx_out->iv = OPENSSL_malloc(gctx->ivlen); - if (!gctx_out->iv) - return 0; - memcpy(gctx_out->iv, gctx->iv, gctx->ivlen); - } - return 1; - } - - default: - return -1; - - } - } +{ + EVP_AES_GCM_CTX *gctx = c->cipher_data; + switch (type) { + case EVP_CTRL_INIT: + gctx->key_set = 0; + gctx->iv_set = 0; + gctx->ivlen = c->cipher->iv_len; + gctx->iv = c->iv; + gctx->taglen = -1; + gctx->iv_gen = 0; + gctx->tls_aad_len = -1; + return 1; + + case EVP_CTRL_GCM_SET_IVLEN: + if (arg <= 0) + return 0; +# ifdef OPENSSL_FIPS + if (FIPS_module_mode() && !(c->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) + && arg < 12) + return 0; +# endif + /* Allocate memory for IV if needed */ + if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) { + if (gctx->iv != c->iv) + OPENSSL_free(gctx->iv); + gctx->iv = OPENSSL_malloc(arg); + if (!gctx->iv) + return 0; + } + gctx->ivlen = arg; + return 1; + + case EVP_CTRL_GCM_SET_TAG: + if (arg <= 0 || arg > 16 || c->encrypt) + return 0; + memcpy(c->buf, ptr, arg); + gctx->taglen = arg; + return 1; + + case EVP_CTRL_GCM_GET_TAG: + if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0) + return 0; + memcpy(ptr, c->buf, arg); + return 1; + + case EVP_CTRL_GCM_SET_IV_FIXED: + /* Special case: -1 length restores whole IV */ + if (arg == -1) { + memcpy(gctx->iv, ptr, gctx->ivlen); + gctx->iv_gen = 1; + return 1; + } + /* + * Fixed field must be at least 4 bytes and invocation field at least + * 8. + */ + if ((arg < 4) || (gctx->ivlen - arg) < 8) + return 0; + if (arg) + memcpy(gctx->iv, ptr, arg); + if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0) + return 0; + gctx->iv_gen = 1; + return 1; + + case EVP_CTRL_GCM_IV_GEN: + if (gctx->iv_gen == 0 || gctx->key_set == 0) + return 0; + CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen); + if (arg <= 0 || arg > gctx->ivlen) + arg = gctx->ivlen; + memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg); + /* + * Invocation field will be at least 8 bytes in size and so no need + * to check wrap around or increment more than last 8 bytes. + */ + ctr64_inc(gctx->iv + gctx->ivlen - 8); + gctx->iv_set = 1; + return 1; + + case EVP_CTRL_GCM_SET_IV_INV: + if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt) + return 0; + memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg); + CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen); + gctx->iv_set = 1; + return 1; + + case EVP_CTRL_AEAD_TLS1_AAD: + /* Save the AAD for later use */ + if (arg != 13) + return 0; + memcpy(c->buf, ptr, arg); + gctx->tls_aad_len = arg; + { + unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1]; + /* Correct length for explicit IV */ + len -= EVP_GCM_TLS_EXPLICIT_IV_LEN; + /* If decrypting correct for tag too */ + if (!c->encrypt) + len -= EVP_GCM_TLS_TAG_LEN; + c->buf[arg - 2] = len >> 8; + c->buf[arg - 1] = len & 0xff; + } + /* Extra padding: tag appended to record */ + return EVP_GCM_TLS_TAG_LEN; + + case EVP_CTRL_COPY: + { + EVP_CIPHER_CTX *out = ptr; + EVP_AES_GCM_CTX *gctx_out = out->cipher_data; + if (gctx->gcm.key) { + if (gctx->gcm.key != &gctx->ks) + return 0; + gctx_out->gcm.key = &gctx_out->ks; + } + if (gctx->iv == c->iv) + gctx_out->iv = out->iv; + else { + gctx_out->iv = OPENSSL_malloc(gctx->ivlen); + if (!gctx_out->iv) + return 0; + memcpy(gctx_out->iv, gctx->iv, gctx->ivlen); + } + return 1; + } + + default: + return -1; + + } +} static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; - if (!iv && !key) - return 1; - if (key) - { do { -#ifdef BSAES_CAPABLE - if (BSAES_CAPABLE) - { - AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks); - CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, - (block128_f)AES_encrypt); - gctx->ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks; - break; - } - else -#endif -#ifdef VPAES_CAPABLE - if (VPAES_CAPABLE) - { - vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks); - CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, - (block128_f)vpaes_encrypt); - gctx->ctr = NULL; - break; - } - else -#endif - (void)0; /* terminate potentially open 'else' */ - - AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); - CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt); -#ifdef AES_CTR_ASM - gctx->ctr = (ctr128_f)AES_ctr32_encrypt; -#else - gctx->ctr = NULL; -#endif - } while (0); - - /* If we have an iv can set it directly, otherwise use - * saved IV. - */ - if (iv == NULL && gctx->iv_set) - iv = gctx->iv; - if (iv) - { - CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); - gctx->iv_set = 1; - } - gctx->key_set = 1; - } - else - { - /* If key set use IV, otherwise copy */ - if (gctx->key_set) - CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); - else - memcpy(gctx->iv, iv, gctx->ivlen); - gctx->iv_set = 1; - gctx->iv_gen = 0; - } - return 1; - } - -/* Handle TLS GCM packet format. This consists of the last portion of the IV + const unsigned char *iv, int enc) +{ + EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + if (!iv && !key) + return 1; + if (key) { + do { +# ifdef BSAES_CAPABLE + if (BSAES_CAPABLE) { + AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); + CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, + (block128_f) AES_encrypt); + gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks; + break; + } else +# endif +# ifdef VPAES_CAPABLE + if (VPAES_CAPABLE) { + vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); + CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, + (block128_f) vpaes_encrypt); + gctx->ctr = NULL; + break; + } else +# endif + (void)0; /* terminate potentially open 'else' */ + + AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); + CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, + (block128_f) AES_encrypt); +# ifdef AES_CTR_ASM + gctx->ctr = (ctr128_f) AES_ctr32_encrypt; +# else + gctx->ctr = NULL; +# endif + } while (0); + + /* + * If we have an iv can set it directly, otherwise use saved IV. + */ + if (iv == NULL && gctx->iv_set) + iv = gctx->iv; + if (iv) { + CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); + gctx->iv_set = 1; + } + gctx->key_set = 1; + } else { + /* If key set use IV, otherwise copy */ + if (gctx->key_set) + CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen); + else + memcpy(gctx->iv, iv, gctx->ivlen); + gctx->iv_set = 1; + gctx->iv_gen = 0; + } + return 1; +} + +/* + * Handle TLS GCM packet format. This consists of the last portion of the IV * followed by the payload and finally the tag. On encrypt generate IV, * encrypt payload and write the tag. On verify retrieve IV, decrypt payload * and verify tag. */ static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len) - { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; - int rv = -1; - /* Encrypt/decrypt must be performed in place */ - if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN+EVP_GCM_TLS_TAG_LEN)) - return -1; - /* Set IV from start of buffer or generate IV and write to start - * of buffer. - */ - if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? - EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV, - EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0) - goto err; - /* Use saved AAD */ - if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len)) - goto err; - /* Fix buffer and length to point to payload */ - in += EVP_GCM_TLS_EXPLICIT_IV_LEN; - out += EVP_GCM_TLS_EXPLICIT_IV_LEN; - len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN; - if (ctx->encrypt) - { - /* Encrypt payload */ - if (gctx->ctr) - { - if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm, - in, out, len, - gctx->ctr)) - goto err; - } - else { - if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, len)) - goto err; - } - out += len; - /* Finally write tag */ - CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN); - rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN; - } - else - { - /* Decrypt */ - if (gctx->ctr) - { - if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm, - in, out, len, - gctx->ctr)) - goto err; - } - else { - if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, len)) - goto err; - } - /* Retrieve tag */ - CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, - EVP_GCM_TLS_TAG_LEN); - /* If tag mismatch wipe buffer */ - if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) - { - OPENSSL_cleanse(out, len); - goto err; - } - rv = len; - } - - err: - gctx->iv_set = 0; - gctx->tls_aad_len = -1; - return rv; - } + const unsigned char *in, size_t len) +{ + EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + int rv = -1; + /* Encrypt/decrypt must be performed in place */ + if (out != in + || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN)) + return -1; + /* + * Set IV from start of buffer or generate IV and write to start of + * buffer. + */ + if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? + EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV, + EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0) + goto err; + /* Use saved AAD */ + if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len)) + goto err; + /* Fix buffer and length to point to payload */ + in += EVP_GCM_TLS_EXPLICIT_IV_LEN; + out += EVP_GCM_TLS_EXPLICIT_IV_LEN; + len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN; + if (ctx->encrypt) { + /* Encrypt payload */ + if (gctx->ctr) { + if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm, + in, out, len, gctx->ctr)) + goto err; + } else { + if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, len)) + goto err; + } + out += len; + /* Finally write tag */ + CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN); + rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN; + } else { + /* Decrypt */ + if (gctx->ctr) { + if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm, + in, out, len, gctx->ctr)) + goto err; + } else { + if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, len)) + goto err; + } + /* Retrieve tag */ + CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN); + /* If tag mismatch wipe buffer */ + if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) { + OPENSSL_cleanse(out, len); + goto err; + } + rv = len; + } + + err: + gctx->iv_set = 0; + gctx->tls_aad_len = -1; + return rv; +} static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len) - { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; - /* If not set up, return error */ - if (!gctx->key_set) - return -1; - - if (gctx->tls_aad_len >= 0) - return aes_gcm_tls_cipher(ctx, out, in, len); - - if (!gctx->iv_set) - return -1; - if (in) - { - if (out == NULL) - { - if (CRYPTO_gcm128_aad(&gctx->gcm, in, len)) - return -1; - } - else if (ctx->encrypt) - { - if (gctx->ctr) - { - if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm, - in, out, len, - gctx->ctr)) - return -1; - } - else { - if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, len)) - return -1; - } - } - else - { - if (gctx->ctr) - { - if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm, - in, out, len, - gctx->ctr)) - return -1; - } - else { - if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, len)) - return -1; - } - } - return len; - } - else - { - if (!ctx->encrypt) - { - if (gctx->taglen < 0) - return -1; - if (CRYPTO_gcm128_finish(&gctx->gcm, - ctx->buf, gctx->taglen) != 0) - return -1; - gctx->iv_set = 0; - return 0; - } - CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16); - gctx->taglen = 16; - /* Don't reuse the IV */ - gctx->iv_set = 0; - return 0; - } - - } - -#define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \ - | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \ - | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \ - | EVP_CIPH_CUSTOM_COPY) - -BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM, - EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS) -BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM, - EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS) -BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM, - EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS) + const unsigned char *in, size_t len) +{ + EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + /* If not set up, return error */ + if (!gctx->key_set) + return -1; + + if (gctx->tls_aad_len >= 0) + return aes_gcm_tls_cipher(ctx, out, in, len); + + if (!gctx->iv_set) + return -1; + if (in) { + if (out == NULL) { + if (CRYPTO_gcm128_aad(&gctx->gcm, in, len)) + return -1; + } else if (ctx->encrypt) { + if (gctx->ctr) { + if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm, + in, out, len, gctx->ctr)) + return -1; + } else { + if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, len)) + return -1; + } + } else { + if (gctx->ctr) { + if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm, + in, out, len, gctx->ctr)) + return -1; + } else { + if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, len)) + return -1; + } + } + return len; + } else { + if (!ctx->encrypt) { + if (gctx->taglen < 0) + return -1; + if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0) + return -1; + gctx->iv_set = 0; + return 0; + } + CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16); + gctx->taglen = 16; + /* Don't reuse the IV */ + gctx->iv_set = 0; + return 0; + } + +} + +# define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \ + | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \ + | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \ + | EVP_CIPH_CUSTOM_COPY) + +BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM, + EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER | + CUSTOM_FLAGS) + BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM, + EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER | + CUSTOM_FLAGS) + BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM, + EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER | + CUSTOM_FLAGS) static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) - { - EVP_AES_XTS_CTX *xctx = c->cipher_data; - if (type == EVP_CTRL_COPY) - { - EVP_CIPHER_CTX *out = ptr; - EVP_AES_XTS_CTX *xctx_out = out->cipher_data; - if (xctx->xts.key1) - { - if (xctx->xts.key1 != &xctx->ks1) - return 0; - xctx_out->xts.key1 = &xctx_out->ks1; - } - if (xctx->xts.key2) - { - if (xctx->xts.key2 != &xctx->ks2) - return 0; - xctx_out->xts.key2 = &xctx_out->ks2; - } - return 1; - } - else if (type != EVP_CTRL_INIT) - return -1; - /* key1 and key2 are used as an indicator both key and IV are set */ - xctx->xts.key1 = NULL; - xctx->xts.key2 = NULL; - return 1; - } +{ + EVP_AES_XTS_CTX *xctx = c->cipher_data; + if (type == EVP_CTRL_COPY) { + EVP_CIPHER_CTX *out = ptr; + EVP_AES_XTS_CTX *xctx_out = out->cipher_data; + if (xctx->xts.key1) { + if (xctx->xts.key1 != &xctx->ks1) + return 0; + xctx_out->xts.key1 = &xctx_out->ks1; + } + if (xctx->xts.key2) { + if (xctx->xts.key2 != &xctx->ks2) + return 0; + xctx_out->xts.key2 = &xctx_out->ks2; + } + return 1; + } else if (type != EVP_CTRL_INIT) + return -1; + /* key1 and key2 are used as an indicator both key and IV are set */ + xctx->xts.key1 = NULL; + xctx->xts.key2 = NULL; + return 1; +} static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - EVP_AES_XTS_CTX *xctx = ctx->cipher_data; - if (!iv && !key) - return 1; - - if (key) do - { -#ifdef AES_XTS_ASM - xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt; -#else - xctx->stream = NULL; -#endif - /* key_len is two AES keys */ -#ifdef BSAES_CAPABLE - if (BSAES_CAPABLE) - xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt; - else -#endif -#ifdef VPAES_CAPABLE - if (VPAES_CAPABLE) - { - if (enc) - { - vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); - xctx->xts.block1 = (block128_f)vpaes_encrypt; - } - else - { - vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); - xctx->xts.block1 = (block128_f)vpaes_decrypt; - } - - vpaes_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2); - xctx->xts.block2 = (block128_f)vpaes_encrypt; - - xctx->xts.key1 = &xctx->ks1; - break; - } - else -#endif - (void)0; /* terminate potentially open 'else' */ - - if (enc) - { - AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); - xctx->xts.block1 = (block128_f)AES_encrypt; - } - else - { - AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); - xctx->xts.block1 = (block128_f)AES_decrypt; - } - - AES_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2); - xctx->xts.block2 = (block128_f)AES_encrypt; - - xctx->xts.key1 = &xctx->ks1; - } while (0); - - if (iv) - { - xctx->xts.key2 = &xctx->ks2; - memcpy(ctx->iv, iv, 16); - } - - return 1; - } + const unsigned char *iv, int enc) +{ + EVP_AES_XTS_CTX *xctx = ctx->cipher_data; + if (!iv && !key) + return 1; + + if (key) + do { +# ifdef AES_XTS_ASM + xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt; +# else + xctx->stream = NULL; +# endif + /* key_len is two AES keys */ +# ifdef BSAES_CAPABLE + if (BSAES_CAPABLE) + xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt; + else +# endif +# ifdef VPAES_CAPABLE + if (VPAES_CAPABLE) { + if (enc) { + vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); + xctx->xts.block1 = (block128_f) vpaes_encrypt; + } else { + vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); + xctx->xts.block1 = (block128_f) vpaes_decrypt; + } + + vpaes_set_encrypt_key(key + ctx->key_len / 2, + ctx->key_len * 4, &xctx->ks2); + xctx->xts.block2 = (block128_f) vpaes_encrypt; + + xctx->xts.key1 = &xctx->ks1; + break; + } else +# endif + (void)0; /* terminate potentially open 'else' */ + + if (enc) { + AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); + xctx->xts.block1 = (block128_f) AES_encrypt; + } else { + AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); + xctx->xts.block1 = (block128_f) AES_decrypt; + } + + AES_set_encrypt_key(key + ctx->key_len / 2, + ctx->key_len * 4, &xctx->ks2); + xctx->xts.block2 = (block128_f) AES_encrypt; + + xctx->xts.key1 = &xctx->ks1; + } while (0); + + if (iv) { + xctx->xts.key2 = &xctx->ks2; + memcpy(ctx->iv, iv, 16); + } + + return 1; +} static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len) - { - EVP_AES_XTS_CTX *xctx = ctx->cipher_data; - if (!xctx->xts.key1 || !xctx->xts.key2) - return 0; - if (!out || !in || len<AES_BLOCK_SIZE) - return 0; -#ifdef OPENSSL_FIPS - /* Requirement of SP800-38E */ - if (FIPS_module_mode() && !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) && - (len > (1UL<<20)*16)) - { - EVPerr(EVP_F_AES_XTS_CIPHER, EVP_R_TOO_LARGE); - return 0; - } -#endif - if (xctx->stream) - (*xctx->stream)(in, out, len, - xctx->xts.key1, xctx->xts.key2, ctx->iv); - else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len, - ctx->encrypt)) - return 0; - return 1; - } + const unsigned char *in, size_t len) +{ + EVP_AES_XTS_CTX *xctx = ctx->cipher_data; + if (!xctx->xts.key1 || !xctx->xts.key2) + return 0; + if (!out || !in || len < AES_BLOCK_SIZE) + return 0; +# ifdef OPENSSL_FIPS + /* Requirement of SP800-38E */ + if (FIPS_module_mode() && !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) && + (len > (1UL << 20) * 16)) { + EVPerr(EVP_F_AES_XTS_CIPHER, EVP_R_TOO_LARGE); + return 0; + } +# endif + if (xctx->stream) + (*xctx->stream) (in, out, len, + xctx->xts.key1, xctx->xts.key2, ctx->iv); + else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len, + ctx->encrypt)) + return 0; + return 1; +} -#define aes_xts_cleanup NULL +# define aes_xts_cleanup NULL -#define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \ - | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \ - | EVP_CIPH_CUSTOM_COPY) +# define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \ + | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \ + | EVP_CIPH_CUSTOM_COPY) -BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS) -BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS) +BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, + EVP_CIPH_FLAG_FIPS | XTS_FLAGS) + BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, + EVP_CIPH_FLAG_FIPS | XTS_FLAGS) static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) - { - EVP_AES_CCM_CTX *cctx = c->cipher_data; - switch (type) - { - case EVP_CTRL_INIT: - cctx->key_set = 0; - cctx->iv_set = 0; - cctx->L = 8; - cctx->M = 12; - cctx->tag_set = 0; - cctx->len_set = 0; - return 1; - - case EVP_CTRL_CCM_SET_IVLEN: - arg = 15 - arg; - case EVP_CTRL_CCM_SET_L: - if (arg < 2 || arg > 8) - return 0; - cctx->L = arg; - return 1; - - case EVP_CTRL_CCM_SET_TAG: - if ((arg & 1) || arg < 4 || arg > 16) - return 0; - if ((c->encrypt && ptr) || (!c->encrypt && !ptr)) - return 0; - if (ptr) - { - cctx->tag_set = 1; - memcpy(c->buf, ptr, arg); - } - cctx->M = arg; - return 1; - - case EVP_CTRL_CCM_GET_TAG: - if (!c->encrypt || !cctx->tag_set) - return 0; - if(!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg)) - return 0; - cctx->tag_set = 0; - cctx->iv_set = 0; - cctx->len_set = 0; - return 1; - - case EVP_CTRL_COPY: - { - EVP_CIPHER_CTX *out = ptr; - EVP_AES_CCM_CTX *cctx_out = out->cipher_data; - if (cctx->ccm.key) - { - if (cctx->ccm.key != &cctx->ks) - return 0; - cctx_out->ccm.key = &cctx_out->ks; - } - return 1; - } - - default: - return -1; - - } - } +{ + EVP_AES_CCM_CTX *cctx = c->cipher_data; + switch (type) { + case EVP_CTRL_INIT: + cctx->key_set = 0; + cctx->iv_set = 0; + cctx->L = 8; + cctx->M = 12; + cctx->tag_set = 0; + cctx->len_set = 0; + return 1; + + case EVP_CTRL_CCM_SET_IVLEN: + arg = 15 - arg; + case EVP_CTRL_CCM_SET_L: + if (arg < 2 || arg > 8) + return 0; + cctx->L = arg; + return 1; + + case EVP_CTRL_CCM_SET_TAG: + if ((arg & 1) || arg < 4 || arg > 16) + return 0; + if ((c->encrypt && ptr) || (!c->encrypt && !ptr)) + return 0; + if (ptr) { + cctx->tag_set = 1; + memcpy(c->buf, ptr, arg); + } + cctx->M = arg; + return 1; + + case EVP_CTRL_CCM_GET_TAG: + if (!c->encrypt || !cctx->tag_set) + return 0; + if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg)) + return 0; + cctx->tag_set = 0; + cctx->iv_set = 0; + cctx->len_set = 0; + return 1; + + case EVP_CTRL_COPY: + { + EVP_CIPHER_CTX *out = ptr; + EVP_AES_CCM_CTX *cctx_out = out->cipher_data; + if (cctx->ccm.key) { + if (cctx->ccm.key != &cctx->ks) + return 0; + cctx_out->ccm.key = &cctx_out->ks; + } + return 1; + } + + default: + return -1; + + } +} static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; - if (!iv && !key) - return 1; - if (key) do - { -#ifdef VPAES_CAPABLE - if (VPAES_CAPABLE) - { - vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks); - CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, - &cctx->ks, (block128_f)vpaes_encrypt); - cctx->str = NULL; - cctx->key_set = 1; - break; - } -#endif - AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks); - CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, - &cctx->ks, (block128_f)AES_encrypt); - cctx->str = NULL; - cctx->key_set = 1; - } while (0); - if (iv) - { - memcpy(ctx->iv, iv, 15 - cctx->L); - cctx->iv_set = 1; - } - return 1; - } + const unsigned char *iv, int enc) +{ + EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + if (!iv && !key) + return 1; + if (key) + do { +# ifdef VPAES_CAPABLE + if (VPAES_CAPABLE) { + vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks); + CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, + &cctx->ks, (block128_f) vpaes_encrypt); + cctx->str = NULL; + cctx->key_set = 1; + break; + } +# endif + AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks); + CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, + &cctx->ks, (block128_f) AES_encrypt); + cctx->str = NULL; + cctx->key_set = 1; + } while (0); + if (iv) { + memcpy(ctx->iv, iv, 15 - cctx->L); + cctx->iv_set = 1; + } + return 1; +} static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len) - { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; - CCM128_CONTEXT *ccm = &cctx->ccm; - /* If not set up, return error */ - if (!cctx->iv_set && !cctx->key_set) - return -1; - if (!ctx->encrypt && !cctx->tag_set) - return -1; - if (!out) - { - if (!in) - { - if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L,len)) - return -1; - cctx->len_set = 1; - return len; - } - /* If have AAD need message length */ - if (!cctx->len_set && len) - return -1; - CRYPTO_ccm128_aad(ccm, in, len); - return len; - } - /* EVP_*Final() doesn't return any data */ - if (!in) - return 0; - /* If not set length yet do it */ - if (!cctx->len_set) - { - if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len)) - return -1; - cctx->len_set = 1; - } - if (ctx->encrypt) - { - if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len, - cctx->str) : - CRYPTO_ccm128_encrypt(ccm, in, out, len)) - return -1; - cctx->tag_set = 1; - return len; - } - else - { - int rv = -1; - if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len, - cctx->str) : - !CRYPTO_ccm128_decrypt(ccm, in, out, len)) - { - unsigned char tag[16]; - if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) - { - if (!memcmp(tag, ctx->buf, cctx->M)) - rv = len; - } - } - if (rv == -1) - OPENSSL_cleanse(out, len); - cctx->iv_set = 0; - cctx->tag_set = 0; - cctx->len_set = 0; - return rv; - } - - } - -#define aes_ccm_cleanup NULL - -BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS) -BLOCK_CIPHER_custom(NID_aes,192,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS) -BLOCK_CIPHER_custom(NID_aes,256,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS) + const unsigned char *in, size_t len) +{ + EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + CCM128_CONTEXT *ccm = &cctx->ccm; + /* If not set up, return error */ + if (!cctx->iv_set && !cctx->key_set) + return -1; + if (!ctx->encrypt && !cctx->tag_set) + return -1; + if (!out) { + if (!in) { + if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len)) + return -1; + cctx->len_set = 1; + return len; + } + /* If have AAD need message length */ + if (!cctx->len_set && len) + return -1; + CRYPTO_ccm128_aad(ccm, in, len); + return len; + } + /* EVP_*Final() doesn't return any data */ + if (!in) + return 0; + /* If not set length yet do it */ + if (!cctx->len_set) { + if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len)) + return -1; + cctx->len_set = 1; + } + if (ctx->encrypt) { + if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len, + cctx->str) : + CRYPTO_ccm128_encrypt(ccm, in, out, len)) + return -1; + cctx->tag_set = 1; + return len; + } else { + int rv = -1; + if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len, + cctx->str) : + !CRYPTO_ccm128_decrypt(ccm, in, out, len)) { + unsigned char tag[16]; + if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) { + if (!memcmp(tag, ctx->buf, cctx->M)) + rv = len; + } + } + if (rv == -1) + OPENSSL_cleanse(out, len); + cctx->iv_set = 0; + cctx->tag_set = 0; + cctx->len_set = 0; + return rv; + } -#endif +} + +# define aes_ccm_cleanup NULL + +BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM, + EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS) + BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM, + EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS) + BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM, + EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS) +# endif #endif |