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80 lines
3.0 KiB
C
80 lines
3.0 KiB
C
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/*
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* Copyright 2019 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/provider.h>
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#include <openssl/engine.h>
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typedef struct {
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/*
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* References to the underlying cipher implementation. |cipher| caches
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* the cipher, always. |alloc_cipher| only holds a reference to an
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* explicitly fetched cipher.
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*/
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const EVP_CIPHER *cipher; /* cipher */
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EVP_CIPHER *alloc_cipher; /* fetched cipher */
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/* Conditions for legacy EVP_CIPHER uses */
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ENGINE *engine; /* cipher engine */
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} PROV_CIPHER;
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typedef struct {
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/*
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* References to the underlying digest implementation. |md| caches
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* the digest, always. |alloc_md| only holds a reference to an explicitly
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* fetched digest.
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*/
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const EVP_MD *md; /* digest */
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EVP_MD *alloc_md; /* fetched digest */
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/* Conditions for legacy EVP_MD uses */
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ENGINE *engine; /* digest engine */
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} PROV_DIGEST;
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/* Cipher functions */
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/*
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* Load a cipher from the specified parameters with the specified context.
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* The params "properties", "engine" and "cipher" are used to determine the
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* implementation used. If a provider cannot be found, it falls back to trying
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* non-provider based implementations.
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*/
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int ossl_prov_cipher_load_from_params(PROV_CIPHER *pd,
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const OSSL_PARAM params[],
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OPENSSL_CTX *ctx);
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/* Reset the PROV_CIPHER fields and free any allocated cipher reference */
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void ossl_prov_cipher_reset(PROV_CIPHER *pd);
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/* Clone a PROV_CIPHER structure into a second */
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int ossl_prov_cipher_copy(PROV_CIPHER *dst, const PROV_CIPHER *src);
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/* Query the cipher and associated engine (if any) */
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const EVP_CIPHER *ossl_prov_cipher_cipher(const PROV_CIPHER *pd);
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ENGINE *ossl_prov_cipher_engine(const PROV_CIPHER *pd);
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/* Digest functions */
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/*
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* Load a digest from the specified parameters with the specified context.
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* The params "properties", "engine" and "digest" are used to determine the
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* implementation used. If a provider cannot be found, it falls back to trying
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* non-provider based implementations.
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*/
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int ossl_prov_digest_load_from_params(PROV_DIGEST *pd,
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const OSSL_PARAM params[],
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OPENSSL_CTX *ctx);
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/* Reset the PROV_DIGEST fields and free any allocated digest reference */
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void ossl_prov_digest_reset(PROV_DIGEST *pd);
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/* Clone a PROV_DIGEST structure into a second */
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int ossl_prov_digest_copy(PROV_DIGEST *dst, const PROV_DIGEST *src);
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/* Query the digest and associated engine (if any) */
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const EVP_MD *ossl_prov_digest_md(const PROV_DIGEST *pd);
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ENGINE *ossl_prov_digest_engine(const PROV_DIGEST *pd);
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