| /* |
| * Copyright 2000-2022 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 |
| */ |
| |
| #include <openssl/core_dispatch.h> |
| #include "internal/refcount.h" |
| |
| #define EVP_CTRL_RET_UNSUPPORTED -1 |
| |
| |
| struct evp_md_ctx_st { |
| const EVP_MD *reqdigest; /* The original requested digest */ |
| const EVP_MD *digest; |
| ENGINE *engine; /* functional reference if 'digest' is |
| * ENGINE-provided */ |
| unsigned long flags; |
| void *md_data; |
| /* Public key context for sign/verify */ |
| EVP_PKEY_CTX *pctx; |
| /* Update function: usually copied from EVP_MD */ |
| int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count); |
| |
| /* |
| * Opaque ctx returned from a providers digest algorithm implementation |
| * OSSL_FUNC_digest_newctx() |
| */ |
| void *algctx; |
| EVP_MD *fetched_digest; |
| } /* EVP_MD_CTX */ ; |
| |
| struct evp_cipher_ctx_st { |
| const EVP_CIPHER *cipher; |
| ENGINE *engine; /* functional reference if 'cipher' is |
| * ENGINE-provided */ |
| int encrypt; /* encrypt or decrypt */ |
| int buf_len; /* number we have left */ |
| unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */ |
| unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */ |
| unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */ |
| int num; /* used by cfb/ofb/ctr mode */ |
| /* FIXME: Should this even exist? It appears unused */ |
| void *app_data; /* application stuff */ |
| int key_len; /* May change for variable length cipher */ |
| int iv_len; /* IV length */ |
| unsigned long flags; /* Various flags */ |
| void *cipher_data; /* per EVP data */ |
| int final_used; |
| int block_mask; |
| unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */ |
| |
| /* |
| * Opaque ctx returned from a providers cipher algorithm implementation |
| * OSSL_FUNC_cipher_newctx() |
| */ |
| void *algctx; |
| EVP_CIPHER *fetched_cipher; |
| } /* EVP_CIPHER_CTX */ ; |
| |
| struct evp_mac_ctx_st { |
| EVP_MAC *meth; /* Method structure */ |
| /* |
| * Opaque ctx returned from a providers MAC algorithm implementation |
| * OSSL_FUNC_mac_newctx() |
| */ |
| void *algctx; |
| } /* EVP_MAC_CTX */; |
| |
| struct evp_kdf_ctx_st { |
| EVP_KDF *meth; /* Method structure */ |
| /* |
| * Opaque ctx returned from a providers KDF algorithm implementation |
| * OSSL_FUNC_kdf_newctx() |
| */ |
| void *algctx; |
| } /* EVP_KDF_CTX */ ; |
| |
| struct evp_rand_ctx_st { |
| EVP_RAND *meth; /* Method structure */ |
| /* |
| * Opaque ctx returned from a providers rand algorithm implementation |
| * OSSL_FUNC_rand_newctx() |
| */ |
| void *algctx; |
| EVP_RAND_CTX *parent; /* Parent EVP_RAND or NULL if none */ |
| CRYPTO_REF_COUNT refcnt; /* Context reference count */ |
| CRYPTO_RWLOCK *refcnt_lock; |
| } /* EVP_RAND_CTX */ ; |
| |
| struct evp_keymgmt_st { |
| int id; /* libcrypto internal */ |
| |
| int name_id; |
| char *type_name; |
| const char *description; |
| OSSL_PROVIDER *prov; |
| CRYPTO_REF_COUNT refcnt; |
| CRYPTO_RWLOCK *lock; |
| |
| /* Constructor(s), destructor, information */ |
| OSSL_FUNC_keymgmt_new_fn *new; |
| OSSL_FUNC_keymgmt_free_fn *free; |
| OSSL_FUNC_keymgmt_get_params_fn *get_params; |
| OSSL_FUNC_keymgmt_gettable_params_fn *gettable_params; |
| OSSL_FUNC_keymgmt_set_params_fn *set_params; |
| OSSL_FUNC_keymgmt_settable_params_fn *settable_params; |
| |
| /* Generation, a complex constructor */ |
| OSSL_FUNC_keymgmt_gen_init_fn *gen_init; |
| OSSL_FUNC_keymgmt_gen_set_template_fn *gen_set_template; |
| OSSL_FUNC_keymgmt_gen_set_params_fn *gen_set_params; |
| OSSL_FUNC_keymgmt_gen_settable_params_fn *gen_settable_params; |
| OSSL_FUNC_keymgmt_gen_fn *gen; |
| OSSL_FUNC_keymgmt_gen_cleanup_fn *gen_cleanup; |
| |
| OSSL_FUNC_keymgmt_load_fn *load; |
| |
| /* Key object checking */ |
| OSSL_FUNC_keymgmt_query_operation_name_fn *query_operation_name; |
| OSSL_FUNC_keymgmt_has_fn *has; |
| OSSL_FUNC_keymgmt_validate_fn *validate; |
| OSSL_FUNC_keymgmt_match_fn *match; |
| |
| /* Import and export routines */ |
| OSSL_FUNC_keymgmt_import_fn *import; |
| OSSL_FUNC_keymgmt_import_types_fn *import_types; |
| OSSL_FUNC_keymgmt_export_fn *export; |
| OSSL_FUNC_keymgmt_export_types_fn *export_types; |
| OSSL_FUNC_keymgmt_dup_fn *dup; |
| } /* EVP_KEYMGMT */ ; |
| |
| struct evp_keyexch_st { |
| int name_id; |
| char *type_name; |
| const char *description; |
| OSSL_PROVIDER *prov; |
| CRYPTO_REF_COUNT refcnt; |
| CRYPTO_RWLOCK *lock; |
| |
| OSSL_FUNC_keyexch_newctx_fn *newctx; |
| OSSL_FUNC_keyexch_init_fn *init; |
| OSSL_FUNC_keyexch_set_peer_fn *set_peer; |
| OSSL_FUNC_keyexch_derive_fn *derive; |
| OSSL_FUNC_keyexch_freectx_fn *freectx; |
| OSSL_FUNC_keyexch_dupctx_fn *dupctx; |
| OSSL_FUNC_keyexch_set_ctx_params_fn *set_ctx_params; |
| OSSL_FUNC_keyexch_settable_ctx_params_fn *settable_ctx_params; |
| OSSL_FUNC_keyexch_get_ctx_params_fn *get_ctx_params; |
| OSSL_FUNC_keyexch_gettable_ctx_params_fn *gettable_ctx_params; |
| } /* EVP_KEYEXCH */; |
| |
| struct evp_signature_st { |
| int name_id; |
| char *type_name; |
| const char *description; |
| OSSL_PROVIDER *prov; |
| CRYPTO_REF_COUNT refcnt; |
| CRYPTO_RWLOCK *lock; |
| |
| OSSL_FUNC_signature_newctx_fn *newctx; |
| OSSL_FUNC_signature_sign_init_fn *sign_init; |
| OSSL_FUNC_signature_sign_fn *sign; |
| OSSL_FUNC_signature_verify_init_fn *verify_init; |
| OSSL_FUNC_signature_verify_fn *verify; |
| OSSL_FUNC_signature_verify_recover_init_fn *verify_recover_init; |
| OSSL_FUNC_signature_verify_recover_fn *verify_recover; |
| OSSL_FUNC_signature_digest_sign_init_fn *digest_sign_init; |
| OSSL_FUNC_signature_digest_sign_update_fn *digest_sign_update; |
| OSSL_FUNC_signature_digest_sign_final_fn *digest_sign_final; |
| OSSL_FUNC_signature_digest_sign_fn *digest_sign; |
| OSSL_FUNC_signature_digest_verify_init_fn *digest_verify_init; |
| OSSL_FUNC_signature_digest_verify_update_fn *digest_verify_update; |
| OSSL_FUNC_signature_digest_verify_final_fn *digest_verify_final; |
| OSSL_FUNC_signature_digest_verify_fn *digest_verify; |
| OSSL_FUNC_signature_freectx_fn *freectx; |
| OSSL_FUNC_signature_dupctx_fn *dupctx; |
| OSSL_FUNC_signature_get_ctx_params_fn *get_ctx_params; |
| OSSL_FUNC_signature_gettable_ctx_params_fn *gettable_ctx_params; |
| OSSL_FUNC_signature_set_ctx_params_fn *set_ctx_params; |
| OSSL_FUNC_signature_settable_ctx_params_fn *settable_ctx_params; |
| OSSL_FUNC_signature_get_ctx_md_params_fn *get_ctx_md_params; |
| OSSL_FUNC_signature_gettable_ctx_md_params_fn *gettable_ctx_md_params; |
| OSSL_FUNC_signature_set_ctx_md_params_fn *set_ctx_md_params; |
| OSSL_FUNC_signature_settable_ctx_md_params_fn *settable_ctx_md_params; |
| } /* EVP_SIGNATURE */; |
| |
| struct evp_asym_cipher_st { |
| int name_id; |
| char *type_name; |
| const char *description; |
| OSSL_PROVIDER *prov; |
| CRYPTO_REF_COUNT refcnt; |
| CRYPTO_RWLOCK *lock; |
| |
| OSSL_FUNC_asym_cipher_newctx_fn *newctx; |
| OSSL_FUNC_asym_cipher_encrypt_init_fn *encrypt_init; |
| OSSL_FUNC_asym_cipher_encrypt_fn *encrypt; |
| OSSL_FUNC_asym_cipher_decrypt_init_fn *decrypt_init; |
| OSSL_FUNC_asym_cipher_decrypt_fn *decrypt; |
| OSSL_FUNC_asym_cipher_freectx_fn *freectx; |
| OSSL_FUNC_asym_cipher_dupctx_fn *dupctx; |
| OSSL_FUNC_asym_cipher_get_ctx_params_fn *get_ctx_params; |
| OSSL_FUNC_asym_cipher_gettable_ctx_params_fn *gettable_ctx_params; |
| OSSL_FUNC_asym_cipher_set_ctx_params_fn *set_ctx_params; |
| OSSL_FUNC_asym_cipher_settable_ctx_params_fn *settable_ctx_params; |
| } /* EVP_ASYM_CIPHER */; |
| |
| struct evp_kem_st { |
| int name_id; |
| char *type_name; |
| const char *description; |
| OSSL_PROVIDER *prov; |
| CRYPTO_REF_COUNT refcnt; |
| CRYPTO_RWLOCK *lock; |
| |
| OSSL_FUNC_kem_newctx_fn *newctx; |
| OSSL_FUNC_kem_encapsulate_init_fn *encapsulate_init; |
| OSSL_FUNC_kem_encapsulate_fn *encapsulate; |
| OSSL_FUNC_kem_decapsulate_init_fn *decapsulate_init; |
| OSSL_FUNC_kem_decapsulate_fn *decapsulate; |
| OSSL_FUNC_kem_freectx_fn *freectx; |
| OSSL_FUNC_kem_dupctx_fn *dupctx; |
| OSSL_FUNC_kem_get_ctx_params_fn *get_ctx_params; |
| OSSL_FUNC_kem_gettable_ctx_params_fn *gettable_ctx_params; |
| OSSL_FUNC_kem_set_ctx_params_fn *set_ctx_params; |
| OSSL_FUNC_kem_settable_ctx_params_fn *settable_ctx_params; |
| } /* EVP_KEM */; |
| |
| int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, |
| int passlen, ASN1_TYPE *param, |
| const EVP_CIPHER *c, const EVP_MD *md, |
| int en_de); |
| int PKCS5_v2_PBKDF2_keyivgen_ex(EVP_CIPHER_CTX *ctx, const char *pass, |
| int passlen, ASN1_TYPE *param, |
| const EVP_CIPHER *c, const EVP_MD *md, |
| int en_de, OSSL_LIB_CTX *libctx, const char *propq); |
| |
| struct evp_Encode_Ctx_st { |
| /* number saved in a partial encode/decode */ |
| int num; |
| /* |
| * The length is either the output line length (in input bytes) or the |
| * shortest input line length that is ok. Once decoding begins, the |
| * length is adjusted up each time a longer line is decoded |
| */ |
| int length; |
| /* data to encode */ |
| unsigned char enc_data[80]; |
| /* number read on current line */ |
| int line_num; |
| unsigned int flags; |
| }; |
| |
| typedef struct evp_pbe_st EVP_PBE_CTL; |
| DEFINE_STACK_OF(EVP_PBE_CTL) |
| |
| int ossl_is_partially_overlapping(const void *ptr1, const void *ptr2, int len); |
| |
| #include <openssl/types.h> |
| #include <openssl/core.h> |
| |
| void *evp_generic_fetch(OSSL_LIB_CTX *ctx, int operation_id, |
| const char *name, const char *properties, |
| void *(*new_method)(int name_id, |
| const OSSL_ALGORITHM *algodef, |
| OSSL_PROVIDER *prov), |
| int (*up_ref_method)(void *), |
| void (*free_method)(void *)); |
| void *evp_generic_fetch_from_prov(OSSL_PROVIDER *prov, int operation_id, |
| const char *name, const char *properties, |
| void *(*new_method)(int name_id, |
| const OSSL_ALGORITHM *algodef, |
| OSSL_PROVIDER *prov), |
| int (*up_ref_method)(void *), |
| void (*free_method)(void *)); |
| void evp_generic_do_all_prefetched(OSSL_LIB_CTX *libctx, int operation_id, |
| void (*user_fn)(void *method, void *arg), |
| void *user_arg); |
| void evp_generic_do_all(OSSL_LIB_CTX *libctx, int operation_id, |
| void (*user_fn)(void *method, void *arg), |
| void *user_arg, |
| void *(*new_method)(int name_id, |
| const OSSL_ALGORITHM *algodef, |
| OSSL_PROVIDER *prov), |
| int (*up_ref_method)(void *), |
| void (*free_method)(void *)); |
| |
| /* Internal fetchers for method types that are to be combined with others */ |
| EVP_KEYMGMT *evp_keymgmt_fetch_by_number(OSSL_LIB_CTX *ctx, int name_id, |
| const char *properties); |
| EVP_KEYMGMT *evp_keymgmt_fetch_from_prov(OSSL_PROVIDER *prov, |
| const char *name, |
| const char *properties); |
| EVP_SIGNATURE *evp_signature_fetch_from_prov(OSSL_PROVIDER *prov, |
| const char *name, |
| const char *properties); |
| EVP_ASYM_CIPHER *evp_asym_cipher_fetch_from_prov(OSSL_PROVIDER *prov, |
| const char *name, |
| const char *properties); |
| EVP_KEYEXCH *evp_keyexch_fetch_from_prov(OSSL_PROVIDER *prov, |
| const char *name, |
| const char *properties); |
| EVP_KEM *evp_kem_fetch_from_prov(OSSL_PROVIDER *prov, |
| const char *name, |
| const char *properties); |
| |
| /* Internal structure constructors for fetched methods */ |
| EVP_MD *evp_md_new(void); |
| EVP_CIPHER *evp_cipher_new(void); |
| |
| int evp_cipher_get_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type, |
| evp_cipher_aead_asn1_params *asn1_params); |
| int evp_cipher_set_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type, |
| evp_cipher_aead_asn1_params *asn1_params); |
| |
| /* Helper functions to avoid duplicating code */ |
| |
| /* |
| * These methods implement different ways to pass a params array to the |
| * provider. They will return one of these values: |
| * |
| * -2 if the method doesn't come from a provider |
| * (evp_do_param will return this to the called) |
| * -1 if the provider doesn't offer the desired function |
| * (evp_do_param will raise an error and return 0) |
| * or the return value from the desired function |
| * (evp_do_param will return it to the caller) |
| */ |
| int evp_do_ciph_getparams(const EVP_CIPHER *ciph, OSSL_PARAM params[]); |
| int evp_do_ciph_ctx_getparams(const EVP_CIPHER *ciph, void *provctx, |
| OSSL_PARAM params[]); |
| int evp_do_ciph_ctx_setparams(const EVP_CIPHER *ciph, void *provctx, |
| OSSL_PARAM params[]); |
| int evp_do_md_getparams(const EVP_MD *md, OSSL_PARAM params[]); |
| int evp_do_md_ctx_getparams(const EVP_MD *md, void *provctx, |
| OSSL_PARAM params[]); |
| int evp_do_md_ctx_setparams(const EVP_MD *md, void *provctx, |
| OSSL_PARAM params[]); |
| |
| OSSL_PARAM *evp_pkey_to_param(EVP_PKEY *pkey, size_t *sz); |
| |
| #define M_check_autoarg(ctx, arg, arglen, err) \ |
| if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) { \ |
| size_t pksize = (size_t)EVP_PKEY_get_size(ctx->pkey); \ |
| \ |
| if (pksize == 0) { \ |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY); /*ckerr_ignore*/ \ |
| return 0; \ |
| } \ |
| if (arg == NULL) { \ |
| *arglen = pksize; \ |
| return 1; \ |
| } \ |
| if (*arglen < pksize) { \ |
| ERR_raise(ERR_LIB_EVP, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/ \ |
| return 0; \ |
| } \ |
| } |
| |
| void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx); |
| void evp_cipher_free_int(EVP_CIPHER *md); |
| void evp_md_free_int(EVP_MD *md); |
| |
| /* OSSL_PROVIDER * is only used to get the library context */ |
| int evp_is_a(OSSL_PROVIDER *prov, int number, |
| const char *legacy_name, const char *name); |
| int evp_names_do_all(OSSL_PROVIDER *prov, int number, |
| void (*fn)(const char *name, void *data), |
| void *data); |
| int evp_cipher_cache_constants(EVP_CIPHER *cipher); |
