diff options
Diffstat (limited to 'crypto/evp/e_aes.c')
| -rw-r--r-- | crypto/evp/e_aes.c | 61 |
1 files changed, 58 insertions, 3 deletions
diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index c7869b69efe2..07bf83a608d8 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -808,6 +808,28 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) /* 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; @@ -1032,7 +1054,8 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, #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_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) @@ -1044,7 +1067,25 @@ BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM, 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_INIT) + 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; @@ -1153,7 +1194,8 @@ static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, #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_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) @@ -1203,6 +1245,19 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) 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; |