openssl/include/crypto/siv.h

/*
 * Copyright 2019-2021 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
 */

#ifndef OPENSSL_NO_SIV

typedef struct siv128_context SIV128_CONTEXT;

SIV128_CONTEXT *ossl_siv128_new(const unsigned char *key, int klen,
                                EVP_CIPHER *cbc, EVP_CIPHER *ctr,
                                OSSL_LIB_CTX *libctx, const char *propq);
int ossl_siv128_init(SIV128_CONTEXT *ctx, const unsigned char *key, int klen,
                     const EVP_CIPHER *cbc, const EVP_CIPHER *ctr,
                     OSSL_LIB_CTX *libctx, const char *propq);
int ossl_siv128_copy_ctx(SIV128_CONTEXT *dest, SIV128_CONTEXT *src);
int ossl_siv128_aad(SIV128_CONTEXT *ctx, const unsigned char *aad, size_t len);
int ossl_siv128_encrypt(SIV128_CONTEXT *ctx,
                        const unsigned char *in, unsigned char *out, size_t len);
int ossl_siv128_decrypt(SIV128_CONTEXT *ctx,
                        const unsigned char *in, unsigned char *out, size_t len);
int ossl_siv128_finish(SIV128_CONTEXT *ctx);
int ossl_siv128_set_tag(SIV128_CONTEXT *ctx, const unsigned char *tag,
                        size_t len);
int ossl_siv128_get_tag(SIV128_CONTEXT *ctx, unsigned char *tag, size_t len);
int ossl_siv128_cleanup(SIV128_CONTEXT *ctx);
int ossl_siv128_speed(SIV128_CONTEXT *ctx, int arg);

#endif /* OPENSSL_NO_SIV */