mirror of
https://github.com/openssl/openssl.git
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371 lines
15 KiB
C
371 lines
15 KiB
C
/*
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* Copyright 2000-2023 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/core_dispatch.h>
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#include "internal/refcount.h"
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#define EVP_CTRL_RET_UNSUPPORTED -1
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struct evp_md_ctx_st {
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const EVP_MD *reqdigest; /* The original requested digest */
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const EVP_MD *digest;
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ENGINE *engine; /* functional reference if 'digest' is
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* ENGINE-provided */
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unsigned long flags;
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void *md_data;
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/* Public key context for sign/verify */
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EVP_PKEY_CTX *pctx;
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/* Update function: usually copied from EVP_MD */
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int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
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/*
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* Opaque ctx returned from a providers digest algorithm implementation
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* OSSL_FUNC_digest_newctx()
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*/
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void *algctx;
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EVP_MD *fetched_digest;
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} /* EVP_MD_CTX */ ;
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struct evp_cipher_ctx_st {
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const EVP_CIPHER *cipher;
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ENGINE *engine; /* functional reference if 'cipher' is
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* ENGINE-provided */
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int encrypt; /* encrypt or decrypt */
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int buf_len; /* number we have left */
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unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */
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unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */
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unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */
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int num; /* used by cfb/ofb/ctr mode */
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/* FIXME: Should this even exist? It appears unused */
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void *app_data; /* application stuff */
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int key_len; /* May change for variable length cipher */
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int iv_len; /* IV length */
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unsigned long flags; /* Various flags */
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void *cipher_data; /* per EVP data */
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int final_used;
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int block_mask;
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unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */
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/*
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* Opaque ctx returned from a providers cipher algorithm implementation
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* OSSL_FUNC_cipher_newctx()
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*/
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void *algctx;
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EVP_CIPHER *fetched_cipher;
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} /* EVP_CIPHER_CTX */ ;
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struct evp_mac_ctx_st {
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EVP_MAC *meth; /* Method structure */
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/*
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* Opaque ctx returned from a providers MAC algorithm implementation
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* OSSL_FUNC_mac_newctx()
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*/
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void *algctx;
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} /* EVP_MAC_CTX */;
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struct evp_kdf_ctx_st {
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EVP_KDF *meth; /* Method structure */
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/*
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* Opaque ctx returned from a providers KDF algorithm implementation
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* OSSL_FUNC_kdf_newctx()
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*/
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void *algctx;
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} /* EVP_KDF_CTX */ ;
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struct evp_rand_ctx_st {
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EVP_RAND *meth; /* Method structure */
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/*
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* Opaque ctx returned from a providers rand algorithm implementation
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* OSSL_FUNC_rand_newctx()
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*/
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void *algctx;
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EVP_RAND_CTX *parent; /* Parent EVP_RAND or NULL if none */
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CRYPTO_REF_COUNT refcnt; /* Context reference count */
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CRYPTO_RWLOCK *refcnt_lock;
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} /* EVP_RAND_CTX */ ;
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struct evp_keymgmt_st {
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int id; /* libcrypto internal */
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int name_id;
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char *type_name;
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const char *description;
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OSSL_PROVIDER *prov;
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CRYPTO_REF_COUNT refcnt;
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/* Constructor(s), destructor, information */
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OSSL_FUNC_keymgmt_new_fn *new;
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OSSL_FUNC_keymgmt_free_fn *free;
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OSSL_FUNC_keymgmt_get_params_fn *get_params;
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OSSL_FUNC_keymgmt_gettable_params_fn *gettable_params;
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OSSL_FUNC_keymgmt_set_params_fn *set_params;
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OSSL_FUNC_keymgmt_settable_params_fn *settable_params;
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/* Generation, a complex constructor */
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OSSL_FUNC_keymgmt_gen_init_fn *gen_init;
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OSSL_FUNC_keymgmt_gen_set_template_fn *gen_set_template;
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OSSL_FUNC_keymgmt_gen_set_params_fn *gen_set_params;
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OSSL_FUNC_keymgmt_gen_settable_params_fn *gen_settable_params;
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OSSL_FUNC_keymgmt_gen_fn *gen;
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OSSL_FUNC_keymgmt_gen_cleanup_fn *gen_cleanup;
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OSSL_FUNC_keymgmt_load_fn *load;
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/* Key object checking */
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OSSL_FUNC_keymgmt_query_operation_name_fn *query_operation_name;
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OSSL_FUNC_keymgmt_has_fn *has;
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OSSL_FUNC_keymgmt_validate_fn *validate;
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OSSL_FUNC_keymgmt_match_fn *match;
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/* Import and export routines */
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OSSL_FUNC_keymgmt_import_fn *import;
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OSSL_FUNC_keymgmt_import_types_fn *import_types;
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OSSL_FUNC_keymgmt_import_types_ex_fn *import_types_ex;
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OSSL_FUNC_keymgmt_export_fn *export;
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OSSL_FUNC_keymgmt_export_types_fn *export_types;
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OSSL_FUNC_keymgmt_export_types_ex_fn *export_types_ex;
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OSSL_FUNC_keymgmt_dup_fn *dup;
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} /* EVP_KEYMGMT */ ;
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struct evp_keyexch_st {
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int name_id;
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char *type_name;
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const char *description;
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OSSL_PROVIDER *prov;
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CRYPTO_REF_COUNT refcnt;
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OSSL_FUNC_keyexch_newctx_fn *newctx;
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OSSL_FUNC_keyexch_init_fn *init;
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OSSL_FUNC_keyexch_set_peer_fn *set_peer;
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OSSL_FUNC_keyexch_derive_fn *derive;
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OSSL_FUNC_keyexch_freectx_fn *freectx;
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OSSL_FUNC_keyexch_dupctx_fn *dupctx;
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OSSL_FUNC_keyexch_set_ctx_params_fn *set_ctx_params;
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OSSL_FUNC_keyexch_settable_ctx_params_fn *settable_ctx_params;
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OSSL_FUNC_keyexch_get_ctx_params_fn *get_ctx_params;
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OSSL_FUNC_keyexch_gettable_ctx_params_fn *gettable_ctx_params;
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} /* EVP_KEYEXCH */;
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struct evp_signature_st {
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int name_id;
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char *type_name;
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const char *description;
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OSSL_PROVIDER *prov;
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CRYPTO_REF_COUNT refcnt;
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OSSL_FUNC_signature_newctx_fn *newctx;
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OSSL_FUNC_signature_sign_init_fn *sign_init;
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OSSL_FUNC_signature_sign_fn *sign;
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OSSL_FUNC_signature_verify_init_fn *verify_init;
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OSSL_FUNC_signature_verify_fn *verify;
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OSSL_FUNC_signature_verify_recover_init_fn *verify_recover_init;
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OSSL_FUNC_signature_verify_recover_fn *verify_recover;
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OSSL_FUNC_signature_digest_sign_init_fn *digest_sign_init;
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OSSL_FUNC_signature_digest_sign_update_fn *digest_sign_update;
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OSSL_FUNC_signature_digest_sign_final_fn *digest_sign_final;
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OSSL_FUNC_signature_digest_sign_fn *digest_sign;
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OSSL_FUNC_signature_digest_verify_init_fn *digest_verify_init;
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OSSL_FUNC_signature_digest_verify_update_fn *digest_verify_update;
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OSSL_FUNC_signature_digest_verify_final_fn *digest_verify_final;
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OSSL_FUNC_signature_digest_verify_fn *digest_verify;
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OSSL_FUNC_signature_freectx_fn *freectx;
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OSSL_FUNC_signature_dupctx_fn *dupctx;
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OSSL_FUNC_signature_get_ctx_params_fn *get_ctx_params;
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OSSL_FUNC_signature_gettable_ctx_params_fn *gettable_ctx_params;
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OSSL_FUNC_signature_set_ctx_params_fn *set_ctx_params;
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OSSL_FUNC_signature_settable_ctx_params_fn *settable_ctx_params;
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OSSL_FUNC_signature_get_ctx_md_params_fn *get_ctx_md_params;
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OSSL_FUNC_signature_gettable_ctx_md_params_fn *gettable_ctx_md_params;
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OSSL_FUNC_signature_set_ctx_md_params_fn *set_ctx_md_params;
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OSSL_FUNC_signature_settable_ctx_md_params_fn *settable_ctx_md_params;
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} /* EVP_SIGNATURE */;
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struct evp_asym_cipher_st {
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int name_id;
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char *type_name;
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const char *description;
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OSSL_PROVIDER *prov;
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CRYPTO_REF_COUNT refcnt;
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OSSL_FUNC_asym_cipher_newctx_fn *newctx;
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OSSL_FUNC_asym_cipher_encrypt_init_fn *encrypt_init;
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OSSL_FUNC_asym_cipher_encrypt_fn *encrypt;
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OSSL_FUNC_asym_cipher_decrypt_init_fn *decrypt_init;
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OSSL_FUNC_asym_cipher_decrypt_fn *decrypt;
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OSSL_FUNC_asym_cipher_freectx_fn *freectx;
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OSSL_FUNC_asym_cipher_dupctx_fn *dupctx;
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OSSL_FUNC_asym_cipher_get_ctx_params_fn *get_ctx_params;
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OSSL_FUNC_asym_cipher_gettable_ctx_params_fn *gettable_ctx_params;
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OSSL_FUNC_asym_cipher_set_ctx_params_fn *set_ctx_params;
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OSSL_FUNC_asym_cipher_settable_ctx_params_fn *settable_ctx_params;
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} /* EVP_ASYM_CIPHER */;
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struct evp_kem_st {
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int name_id;
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char *type_name;
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const char *description;
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OSSL_PROVIDER *prov;
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CRYPTO_REF_COUNT refcnt;
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OSSL_FUNC_kem_newctx_fn *newctx;
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OSSL_FUNC_kem_encapsulate_init_fn *encapsulate_init;
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OSSL_FUNC_kem_encapsulate_fn *encapsulate;
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OSSL_FUNC_kem_decapsulate_init_fn *decapsulate_init;
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OSSL_FUNC_kem_decapsulate_fn *decapsulate;
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OSSL_FUNC_kem_freectx_fn *freectx;
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OSSL_FUNC_kem_dupctx_fn *dupctx;
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OSSL_FUNC_kem_get_ctx_params_fn *get_ctx_params;
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OSSL_FUNC_kem_gettable_ctx_params_fn *gettable_ctx_params;
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OSSL_FUNC_kem_set_ctx_params_fn *set_ctx_params;
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OSSL_FUNC_kem_settable_ctx_params_fn *settable_ctx_params;
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OSSL_FUNC_kem_auth_encapsulate_init_fn *auth_encapsulate_init;
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OSSL_FUNC_kem_auth_decapsulate_init_fn *auth_decapsulate_init;
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} /* EVP_KEM */;
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int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass,
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int passlen, ASN1_TYPE *param,
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const EVP_CIPHER *c, const EVP_MD *md,
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int en_de);
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int PKCS5_v2_PBKDF2_keyivgen_ex(EVP_CIPHER_CTX *ctx, const char *pass,
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int passlen, ASN1_TYPE *param,
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const EVP_CIPHER *c, const EVP_MD *md,
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int en_de, OSSL_LIB_CTX *libctx, const char *propq);
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struct evp_Encode_Ctx_st {
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/* number saved in a partial encode/decode */
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int num;
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/*
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* The length is either the output line length (in input bytes) or the
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* shortest input line length that is ok. Once decoding begins, the
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* length is adjusted up each time a longer line is decoded
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*/
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int length;
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/* data to encode */
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unsigned char enc_data[80];
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/* number read on current line */
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int line_num;
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unsigned int flags;
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};
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typedef struct evp_pbe_st EVP_PBE_CTL;
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DEFINE_STACK_OF(EVP_PBE_CTL)
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int ossl_is_partially_overlapping(const void *ptr1, const void *ptr2, int len);
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#include <openssl/types.h>
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#include <openssl/core.h>
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void *evp_generic_fetch(OSSL_LIB_CTX *ctx, int operation_id,
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const char *name, const char *properties,
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void *(*new_method)(int name_id,
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const OSSL_ALGORITHM *algodef,
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OSSL_PROVIDER *prov),
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int (*up_ref_method)(void *),
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void (*free_method)(void *));
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void *evp_generic_fetch_from_prov(OSSL_PROVIDER *prov, int operation_id,
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const char *name, const char *properties,
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void *(*new_method)(int name_id,
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const OSSL_ALGORITHM *algodef,
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OSSL_PROVIDER *prov),
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int (*up_ref_method)(void *),
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void (*free_method)(void *));
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void evp_generic_do_all_prefetched(OSSL_LIB_CTX *libctx, int operation_id,
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void (*user_fn)(void *method, void *arg),
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void *user_arg);
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void evp_generic_do_all(OSSL_LIB_CTX *libctx, int operation_id,
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void (*user_fn)(void *method, void *arg),
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void *user_arg,
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void *(*new_method)(int name_id,
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const OSSL_ALGORITHM *algodef,
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OSSL_PROVIDER *prov),
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int (*up_ref_method)(void *),
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void (*free_method)(void *));
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/* Internal fetchers for method types that are to be combined with others */
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EVP_KEYMGMT *evp_keymgmt_fetch_by_number(OSSL_LIB_CTX *ctx, int name_id,
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const char *properties);
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EVP_SIGNATURE *evp_signature_fetch_from_prov(OSSL_PROVIDER *prov,
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const char *name,
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const char *properties);
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EVP_ASYM_CIPHER *evp_asym_cipher_fetch_from_prov(OSSL_PROVIDER *prov,
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const char *name,
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const char *properties);
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EVP_KEYEXCH *evp_keyexch_fetch_from_prov(OSSL_PROVIDER *prov,
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const char *name,
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const char *properties);
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EVP_KEM *evp_kem_fetch_from_prov(OSSL_PROVIDER *prov,
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const char *name,
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const char *properties);
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/* Internal structure constructors for fetched methods */
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EVP_MD *evp_md_new(void);
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EVP_CIPHER *evp_cipher_new(void);
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int evp_cipher_get_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
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evp_cipher_aead_asn1_params *asn1_params);
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int evp_cipher_set_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
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evp_cipher_aead_asn1_params *asn1_params);
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/* Helper functions to avoid duplicating code */
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/*
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* These methods implement different ways to pass a params array to the
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* provider. They will return one of these values:
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*
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* -2 if the method doesn't come from a provider
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* (evp_do_param will return this to the called)
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* -1 if the provider doesn't offer the desired function
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* (evp_do_param will raise an error and return 0)
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* or the return value from the desired function
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* (evp_do_param will return it to the caller)
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*/
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int evp_do_ciph_getparams(const EVP_CIPHER *ciph, OSSL_PARAM params[]);
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int evp_do_ciph_ctx_getparams(const EVP_CIPHER *ciph, void *provctx,
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OSSL_PARAM params[]);
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int evp_do_ciph_ctx_setparams(const EVP_CIPHER *ciph, void *provctx,
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OSSL_PARAM params[]);
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int evp_do_md_getparams(const EVP_MD *md, OSSL_PARAM params[]);
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int evp_do_md_ctx_getparams(const EVP_MD *md, void *provctx,
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OSSL_PARAM params[]);
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int evp_do_md_ctx_setparams(const EVP_MD *md, void *provctx,
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OSSL_PARAM params[]);
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OSSL_PARAM *evp_pkey_to_param(EVP_PKEY *pkey, size_t *sz);
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#define M_check_autoarg(ctx, arg, arglen, err) \
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if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) { \
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size_t pksize = (size_t)EVP_PKEY_get_size(ctx->pkey); \
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\
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if (pksize == 0) { \
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ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY); /*ckerr_ignore*/ \
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return 0; \
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} \
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if (arg == NULL) { \
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*arglen = pksize; \
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return 1; \
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} \
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if (*arglen < pksize) { \
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ERR_raise(ERR_LIB_EVP, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/ \
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return 0; \
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} \
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}
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void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx);
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void evp_cipher_free_int(EVP_CIPHER *md);
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void evp_md_free_int(EVP_MD *md);
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/* OSSL_PROVIDER * is only used to get the library context */
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int evp_is_a(OSSL_PROVIDER *prov, int number,
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const char *legacy_name, const char *name);
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int evp_names_do_all(OSSL_PROVIDER *prov, int number,
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void (*fn)(const char *name, void *data),
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void *data);
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int evp_cipher_cache_constants(EVP_CIPHER *cipher);
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