diff options
Diffstat (limited to 'providers/implementations/encode_decode/decode_der2key.c')
| -rw-r--r-- | providers/implementations/encode_decode/decode_der2key.c | 816 |
1 files changed, 816 insertions, 0 deletions
diff --git a/providers/implementations/encode_decode/decode_der2key.c b/providers/implementations/encode_decode/decode_der2key.c new file mode 100644 index 000000000000..f2d9d8255648 --- /dev/null +++ b/providers/implementations/encode_decode/decode_der2key.c @@ -0,0 +1,816 @@ +/* + * Copyright 2020-2024 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +/* + * low level APIs are deprecated for public use, but still ok for + * internal use. + */ +#include "internal/deprecated.h" + +#include <openssl/core_dispatch.h> +#include <openssl/core_names.h> +#include <openssl/core_object.h> +#include <openssl/crypto.h> +#include <openssl/err.h> +#include <openssl/params.h> +#include <openssl/pem.h> /* PEM_BUFSIZE and public PEM functions */ +#include <openssl/pkcs12.h> +#include <openssl/x509.h> +#include <openssl/proverr.h> +#include "internal/cryptlib.h" /* ossl_assert() */ +#include "internal/asn1.h" +#include "crypto/dh.h" +#include "crypto/dsa.h" +#include "crypto/ec.h" +#include "crypto/evp.h" +#include "crypto/ecx.h" +#include "crypto/rsa.h" +#include "crypto/x509.h" +#include "openssl/obj_mac.h" +#include "prov/bio.h" +#include "prov/implementations.h" +#include "endecoder_local.h" + +struct der2key_ctx_st; /* Forward declaration */ +typedef int check_key_fn(void *, struct der2key_ctx_st *ctx); +typedef void adjust_key_fn(void *, struct der2key_ctx_st *ctx); +typedef void free_key_fn(void *); +typedef void *d2i_PKCS8_fn(void **, const unsigned char **, long, + struct der2key_ctx_st *); +struct keytype_desc_st { + const char *keytype_name; + const OSSL_DISPATCH *fns; /* Keymgmt (to pilfer functions from) */ + + /* The input structure name */ + const char *structure_name; + + /* + * The EVP_PKEY_xxx type macro. Should be zero for type specific + * structures, non-zero when the outermost structure is PKCS#8 or + * SubjectPublicKeyInfo. This determines which of the function + * pointers below will be used. + */ + int evp_type; + + /* The selection mask for OSSL_FUNC_decoder_does_selection() */ + int selection_mask; + + /* For type specific decoders, we use the corresponding d2i */ + d2i_of_void *d2i_private_key; /* From type-specific DER */ + d2i_of_void *d2i_public_key; /* From type-specific DER */ + d2i_of_void *d2i_key_params; /* From type-specific DER */ + d2i_PKCS8_fn *d2i_PKCS8; /* Wrapped in a PrivateKeyInfo */ + d2i_of_void *d2i_PUBKEY; /* Wrapped in a SubjectPublicKeyInfo */ + + /* + * For any key, we may need to check that the key meets expectations. + * This is useful when the same functions can decode several variants + * of a key. + */ + check_key_fn *check_key; + + /* + * For any key, we may need to make provider specific adjustments, such + * as ensure the key carries the correct library context. + */ + adjust_key_fn *adjust_key; + /* {type}_free() */ + free_key_fn *free_key; +}; + +/* + * Context used for DER to key decoding. + */ +struct der2key_ctx_st { + PROV_CTX *provctx; + const struct keytype_desc_st *desc; + /* The selection that is passed to der2key_decode() */ + int selection; + /* Flag used to signal that a failure is fatal */ + unsigned int flag_fatal : 1; +}; + +typedef void *key_from_pkcs8_t(const PKCS8_PRIV_KEY_INFO *p8inf, + OSSL_LIB_CTX *libctx, const char *propq); +static void *der2key_decode_p8(const unsigned char **input_der, + long input_der_len, struct der2key_ctx_st *ctx, + key_from_pkcs8_t *key_from_pkcs8) +{ + PKCS8_PRIV_KEY_INFO *p8inf = NULL; + const X509_ALGOR *alg = NULL; + void *key = NULL; + + if ((p8inf = d2i_PKCS8_PRIV_KEY_INFO(NULL, input_der, input_der_len)) != NULL + && PKCS8_pkey_get0(NULL, NULL, NULL, &alg, p8inf) + && (OBJ_obj2nid(alg->algorithm) == ctx->desc->evp_type + /* Allow decoding sm2 private key with id_ecPublicKey */ + || (OBJ_obj2nid(alg->algorithm) == NID_X9_62_id_ecPublicKey + && ctx->desc->evp_type == NID_sm2))) + key = key_from_pkcs8(p8inf, PROV_LIBCTX_OF(ctx->provctx), NULL); + PKCS8_PRIV_KEY_INFO_free(p8inf); + + return key; +} + +/* ---------------------------------------------------------------------- */ + +static OSSL_FUNC_decoder_freectx_fn der2key_freectx; +static OSSL_FUNC_decoder_decode_fn der2key_decode; +static OSSL_FUNC_decoder_export_object_fn der2key_export_object; + +static struct der2key_ctx_st * +der2key_newctx(void *provctx, const struct keytype_desc_st *desc) +{ + struct der2key_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx)); + + if (ctx != NULL) { + ctx->provctx = provctx; + ctx->desc = desc; + } + return ctx; +} + +static void der2key_freectx(void *vctx) +{ + struct der2key_ctx_st *ctx = vctx; + + OPENSSL_free(ctx); +} + +static int der2key_check_selection(int selection, + const struct keytype_desc_st *desc) +{ + /* + * The selections are kinda sorta "levels", i.e. each selection given + * here is assumed to include those following. + */ + int checks[] = { + OSSL_KEYMGMT_SELECT_PRIVATE_KEY, + OSSL_KEYMGMT_SELECT_PUBLIC_KEY, + OSSL_KEYMGMT_SELECT_ALL_PARAMETERS + }; + size_t i; + + /* The decoder implementations made here support guessing */ + if (selection == 0) + return 1; + + for (i = 0; i < OSSL_NELEM(checks); i++) { + int check1 = (selection & checks[i]) != 0; + int check2 = (desc->selection_mask & checks[i]) != 0; + + /* + * If the caller asked for the currently checked bit(s), return + * whether the decoder description says it's supported. + */ + if (check1) + return check2; + } + + /* This should be dead code, but just to be safe... */ + return 0; +} + +static int der2key_decode(void *vctx, OSSL_CORE_BIO *cin, int selection, + OSSL_CALLBACK *data_cb, void *data_cbarg, + OSSL_PASSPHRASE_CALLBACK *pw_cb, void *pw_cbarg) +{ + struct der2key_ctx_st *ctx = vctx; + unsigned char *der = NULL; + const unsigned char *derp; + long der_len = 0; + void *key = NULL; + int ok = 0; + + ctx->selection = selection; + /* + * The caller is allowed to specify 0 as a selection mark, to have the + * structure and key type guessed. For type-specific structures, this + * is not recommended, as some structures are very similar. + * Note that 0 isn't the same as OSSL_KEYMGMT_SELECT_ALL, as the latter + * signifies a private key structure, where everything else is assumed + * to be present as well. + */ + if (selection == 0) + selection = ctx->desc->selection_mask; + if ((selection & ctx->desc->selection_mask) == 0) { + ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); + return 0; + } + + ok = ossl_read_der(ctx->provctx, cin, &der, &der_len); + if (!ok) + goto next; + + ok = 0; /* Assume that we fail */ + + ERR_set_mark(); + if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) { + derp = der; + if (ctx->desc->d2i_PKCS8 != NULL) { + key = ctx->desc->d2i_PKCS8(NULL, &derp, der_len, ctx); + if (ctx->flag_fatal) { + ERR_clear_last_mark(); + goto end; + } + } else if (ctx->desc->d2i_private_key != NULL) { + key = ctx->desc->d2i_private_key(NULL, &derp, der_len); + } + if (key == NULL && ctx->selection != 0) { + ERR_clear_last_mark(); + goto next; + } + } + if (key == NULL && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) { + derp = der; + if (ctx->desc->d2i_PUBKEY != NULL) + key = ctx->desc->d2i_PUBKEY(NULL, &derp, der_len); + else if (ctx->desc->d2i_public_key != NULL) + key = ctx->desc->d2i_public_key(NULL, &derp, der_len); + if (key == NULL && ctx->selection != 0) { + ERR_clear_last_mark(); + goto next; + } + } + if (key == NULL && (selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0) { + derp = der; + if (ctx->desc->d2i_key_params != NULL) + key = ctx->desc->d2i_key_params(NULL, &derp, der_len); + if (key == NULL && ctx->selection != 0) { + ERR_clear_last_mark(); + goto next; + } + } + if (key == NULL) + ERR_clear_last_mark(); + else + ERR_pop_to_mark(); + + /* + * Last minute check to see if this was the correct type of key. This + * should never lead to a fatal error, i.e. the decoding itself was + * correct, it was just an unexpected key type. This is generally for + * classes of key types that have subtle variants, like RSA-PSS keys as + * opposed to plain RSA keys. + */ + if (key != NULL + && ctx->desc->check_key != NULL + && !ctx->desc->check_key(key, ctx)) { + ctx->desc->free_key(key); + key = NULL; + } + + if (key != NULL && ctx->desc->adjust_key != NULL) + ctx->desc->adjust_key(key, ctx); + + next: + /* + * Indicated that we successfully decoded something, or not at all. + * Ending up "empty handed" is not an error. + */ + ok = 1; + + /* + * We free memory here so it's not held up during the callback, because + * we know the process is recursive and the allocated chunks of memory + * add up. + */ + OPENSSL_free(der); + der = NULL; + + if (key != NULL) { + OSSL_PARAM params[4]; + int object_type = OSSL_OBJECT_PKEY; + + params[0] = + OSSL_PARAM_construct_int(OSSL_OBJECT_PARAM_TYPE, &object_type); + +#ifndef OPENSSL_NO_SM2 + if (strcmp(ctx->desc->keytype_name, "EC") == 0 + && (EC_KEY_get_flags(key) & EC_FLAG_SM2_RANGE) != 0) + params[1] = + OSSL_PARAM_construct_utf8_string(OSSL_OBJECT_PARAM_DATA_TYPE, + "SM2", 0); + else +#endif + params[1] = + OSSL_PARAM_construct_utf8_string(OSSL_OBJECT_PARAM_DATA_TYPE, + (char *)ctx->desc->keytype_name, + 0); + /* The address of the key becomes the octet string */ + params[2] = + OSSL_PARAM_construct_octet_string(OSSL_OBJECT_PARAM_REFERENCE, + &key, sizeof(key)); + params[3] = OSSL_PARAM_construct_end(); + + ok = data_cb(params, data_cbarg); + } + + end: + ctx->desc->free_key(key); + OPENSSL_free(der); + + return ok; +} + +static int der2key_export_object(void *vctx, + const void *reference, size_t reference_sz, + OSSL_CALLBACK *export_cb, void *export_cbarg) +{ + struct der2key_ctx_st *ctx = vctx; + OSSL_FUNC_keymgmt_export_fn *export = + ossl_prov_get_keymgmt_export(ctx->desc->fns); + void *keydata; + + if (reference_sz == sizeof(keydata) && export != NULL) { + int selection = ctx->selection; + + if (selection == 0) + selection = OSSL_KEYMGMT_SELECT_ALL; + /* The contents of the reference is the address to our object */ + keydata = *(void **)reference; + + return export(keydata, selection, export_cb, export_cbarg); + } + return 0; +} + +/* ---------------------------------------------------------------------- */ + +#ifndef OPENSSL_NO_DH +# define dh_evp_type EVP_PKEY_DH +# define dh_d2i_private_key NULL +# define dh_d2i_public_key NULL +# define dh_d2i_key_params (d2i_of_void *)d2i_DHparams + +static void *dh_d2i_PKCS8(void **key, const unsigned char **der, long der_len, + struct der2key_ctx_st *ctx) +{ + return der2key_decode_p8(der, der_len, ctx, + (key_from_pkcs8_t *)ossl_dh_key_from_pkcs8); +} + +# define dh_d2i_PUBKEY (d2i_of_void *)ossl_d2i_DH_PUBKEY +# define dh_free (free_key_fn *)DH_free +# define dh_check NULL + +static void dh_adjust(void *key, struct der2key_ctx_st *ctx) +{ + ossl_dh_set0_libctx(key, PROV_LIBCTX_OF(ctx->provctx)); +} + +# define dhx_evp_type EVP_PKEY_DHX +# define dhx_d2i_private_key NULL +# define dhx_d2i_public_key NULL +# define dhx_d2i_key_params (d2i_of_void *)d2i_DHxparams +# define dhx_d2i_PKCS8 dh_d2i_PKCS8 +# define dhx_d2i_PUBKEY (d2i_of_void *)ossl_d2i_DHx_PUBKEY +# define dhx_free (free_key_fn *)DH_free +# define dhx_check NULL +# define dhx_adjust dh_adjust +#endif + +/* ---------------------------------------------------------------------- */ + +#ifndef OPENSSL_NO_DSA +# define dsa_evp_type EVP_PKEY_DSA +# define dsa_d2i_private_key (d2i_of_void *)d2i_DSAPrivateKey +# define dsa_d2i_public_key (d2i_of_void *)d2i_DSAPublicKey +# define dsa_d2i_key_params (d2i_of_void *)d2i_DSAparams + +static void *dsa_d2i_PKCS8(void **key, const unsigned char **der, long der_len, + struct der2key_ctx_st *ctx) +{ + return der2key_decode_p8(der, der_len, ctx, + (key_from_pkcs8_t *)ossl_dsa_key_from_pkcs8); +} + +# define dsa_d2i_PUBKEY (d2i_of_void *)ossl_d2i_DSA_PUBKEY +# define dsa_free (free_key_fn *)DSA_free +# define dsa_check NULL + +static void dsa_adjust(void *key, struct der2key_ctx_st *ctx) +{ + ossl_dsa_set0_libctx(key, PROV_LIBCTX_OF(ctx->provctx)); +} +#endif + +/* ---------------------------------------------------------------------- */ + +#ifndef OPENSSL_NO_EC +# define ec_evp_type EVP_PKEY_EC +# define ec_d2i_private_key (d2i_of_void *)d2i_ECPrivateKey +# define ec_d2i_public_key NULL +# define ec_d2i_key_params (d2i_of_void *)d2i_ECParameters + +static void *ec_d2i_PKCS8(void **key, const unsigned char **der, long der_len, + struct der2key_ctx_st *ctx) +{ + return der2key_decode_p8(der, der_len, ctx, + (key_from_pkcs8_t *)ossl_ec_key_from_pkcs8); +} + +# define ec_d2i_PUBKEY (d2i_of_void *)d2i_EC_PUBKEY +# define ec_free (free_key_fn *)EC_KEY_free + +static int ec_check(void *key, struct der2key_ctx_st *ctx) +{ + /* We're trying to be clever by comparing two truths */ + int ret = 0; + int sm2 = (EC_KEY_get_flags(key) & EC_FLAG_SM2_RANGE) != 0; + + if (sm2) + ret = ctx->desc->evp_type == EVP_PKEY_SM2 + || ctx->desc->evp_type == NID_X9_62_id_ecPublicKey; + else + ret = ctx->desc->evp_type != EVP_PKEY_SM2; + + return ret; +} + +static void ec_adjust(void *key, struct der2key_ctx_st *ctx) +{ + ossl_ec_key_set0_libctx(key, PROV_LIBCTX_OF(ctx->provctx)); +} + +/* + * ED25519, ED448, X25519, X448 only implement PKCS#8 and SubjectPublicKeyInfo, + * so no d2i functions to be had. + */ + +static void *ecx_d2i_PKCS8(void **key, const unsigned char **der, long der_len, + struct der2key_ctx_st *ctx) +{ + return der2key_decode_p8(der, der_len, ctx, + (key_from_pkcs8_t *)ossl_ecx_key_from_pkcs8); +} + +static void ecx_key_adjust(void *key, struct der2key_ctx_st *ctx) +{ + ossl_ecx_key_set0_libctx(key, PROV_LIBCTX_OF(ctx->provctx)); +} + +# define ed25519_evp_type EVP_PKEY_ED25519 +# define ed25519_d2i_private_key NULL +# define ed25519_d2i_public_key NULL +# define ed25519_d2i_key_params NULL +# define ed25519_d2i_PKCS8 ecx_d2i_PKCS8 +# define ed25519_d2i_PUBKEY (d2i_of_void *)ossl_d2i_ED25519_PUBKEY +# define ed25519_free (free_key_fn *)ossl_ecx_key_free +# define ed25519_check NULL +# define ed25519_adjust ecx_key_adjust + +# define ed448_evp_type EVP_PKEY_ED448 +# define ed448_d2i_private_key NULL +# define ed448_d2i_public_key NULL +# define ed448_d2i_key_params NULL +# define ed448_d2i_PKCS8 ecx_d2i_PKCS8 +# define ed448_d2i_PUBKEY (d2i_of_void *)ossl_d2i_ED448_PUBKEY +# define ed448_free (free_key_fn *)ossl_ecx_key_free +# define ed448_check NULL +# define ed448_adjust ecx_key_adjust + +# define x25519_evp_type EVP_PKEY_X25519 +# define x25519_d2i_private_key NULL +# define x25519_d2i_public_key NULL +# define x25519_d2i_key_params NULL +# define x25519_d2i_PKCS8 ecx_d2i_PKCS8 +# define x25519_d2i_PUBKEY (d2i_of_void *)ossl_d2i_X25519_PUBKEY +# define x25519_free (free_key_fn *)ossl_ecx_key_free +# define x25519_check NULL +# define x25519_adjust ecx_key_adjust + +# define x448_evp_type EVP_PKEY_X448 +# define x448_d2i_private_key NULL +# define x448_d2i_public_key NULL +# define x448_d2i_key_params NULL +# define x448_d2i_PKCS8 ecx_d2i_PKCS8 +# define x448_d2i_PUBKEY (d2i_of_void *)ossl_d2i_X448_PUBKEY +# define x448_free (free_key_fn *)ossl_ecx_key_free +# define x448_check NULL +# define x448_adjust ecx_key_adjust + +# ifndef OPENSSL_NO_SM2 +# define sm2_evp_type EVP_PKEY_SM2 +# define sm2_d2i_private_key (d2i_of_void *)d2i_ECPrivateKey +# define sm2_d2i_public_key NULL +# define sm2_d2i_key_params (d2i_of_void *)d2i_ECParameters + +static void *sm2_d2i_PKCS8(void **key, const unsigned char **der, long der_len, + struct der2key_ctx_st *ctx) +{ + return der2key_decode_p8(der, der_len, ctx, + (key_from_pkcs8_t *)ossl_ec_key_from_pkcs8); +} + +# define sm2_d2i_PUBKEY (d2i_of_void *)d2i_EC_PUBKEY +# define sm2_free (free_key_fn *)EC_KEY_free +# define sm2_check ec_check +# define sm2_adjust ec_adjust +# endif +#endif + +/* ---------------------------------------------------------------------- */ + +#define rsa_evp_type EVP_PKEY_RSA +#define rsa_d2i_private_key (d2i_of_void *)d2i_RSAPrivateKey +#define rsa_d2i_public_key (d2i_of_void *)d2i_RSAPublicKey +#define rsa_d2i_key_params NULL + +static void *rsa_d2i_PKCS8(void **key, const unsigned char **der, long der_len, + struct der2key_ctx_st *ctx) +{ + return der2key_decode_p8(der, der_len, ctx, + (key_from_pkcs8_t *)ossl_rsa_key_from_pkcs8); +} + +#define rsa_d2i_PUBKEY (d2i_of_void *)d2i_RSA_PUBKEY +#define rsa_free (free_key_fn *)RSA_free + +static int rsa_check(void *key, struct der2key_ctx_st *ctx) +{ + switch (RSA_test_flags(key, RSA_FLAG_TYPE_MASK)) { + case RSA_FLAG_TYPE_RSA: + return ctx->desc->evp_type == EVP_PKEY_RSA; + case RSA_FLAG_TYPE_RSASSAPSS: + return ctx->desc->evp_type == EVP_PKEY_RSA_PSS; + } + + /* Currently unsupported RSA key type */ + return 0; +} + +static void rsa_adjust(void *key, struct der2key_ctx_st *ctx) +{ + ossl_rsa_set0_libctx(key, PROV_LIBCTX_OF(ctx->provctx)); +} + +#define rsapss_evp_type EVP_PKEY_RSA_PSS +#define rsapss_d2i_private_key (d2i_of_void *)d2i_RSAPrivateKey +#define rsapss_d2i_public_key (d2i_of_void *)d2i_RSAPublicKey +#define rsapss_d2i_key_params NULL +#define rsapss_d2i_PKCS8 rsa_d2i_PKCS8 +#define rsapss_d2i_PUBKEY (d2i_of_void *)d2i_RSA_PUBKEY +#define rsapss_free (free_key_fn *)RSA_free +#define rsapss_check rsa_check +#define rsapss_adjust rsa_adjust + +/* ---------------------------------------------------------------------- */ + +/* + * The DO_ macros help define the selection mask and the method functions + * for each kind of object we want to decode. + */ +#define DO_type_specific_keypair(keytype) \ + "type-specific", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_KEYPAIR ), \ + keytype##_d2i_private_key, \ + keytype##_d2i_public_key, \ + NULL, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_type_specific_pub(keytype) \ + "type-specific", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_PUBLIC_KEY ), \ + NULL, \ + keytype##_d2i_public_key, \ + NULL, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_type_specific_priv(keytype) \ + "type-specific", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY ), \ + keytype##_d2i_private_key, \ + NULL, \ + NULL, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_type_specific_params(keytype) \ + "type-specific", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \ + NULL, \ + NULL, \ + keytype##_d2i_key_params, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_type_specific(keytype) \ + "type-specific", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_ALL ), \ + keytype##_d2i_private_key, \ + keytype##_d2i_public_key, \ + keytype##_d2i_key_params, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_type_specific_no_pub(keytype) \ + "type-specific", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY \ + | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \ + keytype##_d2i_private_key, \ + NULL, \ + keytype##_d2i_key_params, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_PrivateKeyInfo(keytype) \ + "PrivateKeyInfo", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY ), \ + NULL, \ + NULL, \ + NULL, \ + keytype##_d2i_PKCS8, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_SubjectPublicKeyInfo(keytype) \ + "SubjectPublicKeyInfo", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_PUBLIC_KEY ), \ + NULL, \ + NULL, \ + NULL, \ + NULL, \ + keytype##_d2i_PUBKEY, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_DH(keytype) \ + "DH", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \ + NULL, \ + NULL, \ + keytype##_d2i_key_params, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_DHX(keytype) \ + "DHX", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \ + NULL, \ + NULL, \ + keytype##_d2i_key_params, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_DSA(keytype) \ + "DSA", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_ALL ), \ + keytype##_d2i_private_key, \ + keytype##_d2i_public_key, \ + keytype##_d2i_key_params, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_EC(keytype) \ + "EC", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY \ + | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \ + keytype##_d2i_private_key, \ + NULL, \ + keytype##_d2i_key_params, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +#define DO_RSA(keytype) \ + "RSA", keytype##_evp_type, \ + ( OSSL_KEYMGMT_SELECT_KEYPAIR ), \ + keytype##_d2i_private_key, \ + keytype##_d2i_public_key, \ + NULL, \ + NULL, \ + NULL, \ + keytype##_check, \ + keytype##_adjust, \ + keytype##_free + +/* + * MAKE_DECODER is the single driver for creating OSSL_DISPATCH tables. + * It takes the following arguments: + * + * keytype_name The implementation key type as a string. + * keytype The implementation key type. This must correspond exactly + * to our existing keymgmt keytype names... in other words, + * there must exist an ossl_##keytype##_keymgmt_functions. + * type The type name for the set of functions that implement the + * decoder for the key type. This isn't necessarily the same + * as keytype. For example, the key types ed25519, ed448, + * x25519 and x448 are all handled by the same functions with + * the common type name ecx. + * kind The kind of support to implement. This translates into + * the DO_##kind macros above, to populate the keytype_desc_st + * structure. + */ +#define MAKE_DECODER(keytype_name, keytype, type, kind) \ + static const struct keytype_desc_st kind##_##keytype##_desc = \ + { keytype_name, ossl_##keytype##_keymgmt_functions, \ + DO_##kind(keytype) }; \ + \ + static OSSL_FUNC_decoder_newctx_fn kind##_der2##keytype##_newctx; \ + \ + static void *kind##_der2##keytype##_newctx(void *provctx) \ + { \ + return der2key_newctx(provctx, &kind##_##keytype##_desc); \ + } \ + static int kind##_der2##keytype##_does_selection(void *provctx, \ + int selection) \ + { \ + return der2key_check_selection(selection, \ + &kind##_##keytype##_desc); \ + } \ + const OSSL_DISPATCH \ + ossl_##kind##_der_to_##keytype##_decoder_functions[] = { \ + { OSSL_FUNC_DECODER_NEWCTX, \ + (void (*)(void))kind##_der2##keytype##_newctx }, \ + { OSSL_FUNC_DECODER_FREECTX, \ + (void (*)(void))der2key_freectx }, \ + { OSSL_FUNC_DECODER_DOES_SELECTION, \ + (void (*)(void))kind##_der2##keytype##_does_selection }, \ + { OSSL_FUNC_DECODER_DECODE, \ + (void (*)(void))der2key_decode }, \ + { OSSL_FUNC_DECODER_EXPORT_OBJECT, \ + (void (*)(void))der2key_export_object }, \ + { 0, NULL } \ + } + +#ifndef OPENSSL_NO_DH +MAKE_DECODER("DH", dh, dh, PrivateKeyInfo); +MAKE_DECODER("DH", dh, dh, SubjectPublicKeyInfo); +MAKE_DECODER("DH", dh, dh, type_specific_params); +MAKE_DECODER("DH", dh, dh, DH); +MAKE_DECODER("DHX", dhx, dhx, PrivateKeyInfo); +MAKE_DECODER("DHX", dhx, dhx, SubjectPublicKeyInfo); +MAKE_DECODER("DHX", dhx, dhx, type_specific_params); +MAKE_DECODER("DHX", dhx, dhx, DHX); +#endif +#ifndef OPENSSL_NO_DSA +MAKE_DECODER("DSA", dsa, dsa, PrivateKeyInfo); +MAKE_DECODER("DSA", dsa, dsa, SubjectPublicKeyInfo); +MAKE_DECODER("DSA", dsa, dsa, type_specific); +MAKE_DECODER("DSA", dsa, dsa, DSA); +#endif +#ifndef OPENSSL_NO_EC +MAKE_DECODER("EC", ec, ec, PrivateKeyInfo); +MAKE_DECODER("EC", ec, ec, SubjectPublicKeyInfo); +MAKE_DECODER("EC", ec, ec, type_specific_no_pub); +MAKE_DECODER("EC", ec, ec, EC); +MAKE_DECODER("X25519", x25519, ecx, PrivateKeyInfo); +MAKE_DECODER("X25519", x25519, ecx, SubjectPublicKeyInfo); +MAKE_DECODER("X448", x448, ecx, PrivateKeyInfo); +MAKE_DECODER("X448", x448, ecx, SubjectPublicKeyInfo); +MAKE_DECODER("ED25519", ed25519, ecx, PrivateKeyInfo); +MAKE_DECODER("ED25519", ed25519, ecx, SubjectPublicKeyInfo); +MAKE_DECODER("ED448", ed448, ecx, PrivateKeyInfo); +MAKE_DECODER("ED448", ed448, ecx, SubjectPublicKeyInfo); +# ifndef OPENSSL_NO_SM2 +MAKE_DECODER("SM2", sm2, ec, PrivateKeyInfo); +MAKE_DECODER("SM2", sm2, ec, SubjectPublicKeyInfo); +# endif +#endif +MAKE_DECODER("RSA", rsa, rsa, PrivateKeyInfo); +MAKE_DECODER("RSA", rsa, rsa, SubjectPublicKeyInfo); +MAKE_DECODER("RSA", rsa, rsa, type_specific_keypair); +MAKE_DECODER("RSA", rsa, rsa, RSA); +MAKE_DECODER("RSA-PSS", rsapss, rsapss, PrivateKeyInfo); +MAKE_DECODER("RSA-PSS", rsapss, rsapss, SubjectPublicKeyInfo); |