Coverage Report

Created: 2024-11-21 07:03

/src/openssl/providers/implementations/ciphers/ciphercommon_ccm_hw.c
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Source (jump to first uncovered line)
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/*
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 * Copyright 2019-2021 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 "prov/ciphercommon.h"
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#include "prov/ciphercommon_ccm.h"
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int ossl_ccm_generic_setiv(PROV_CCM_CTX *ctx, const unsigned char *nonce,
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                           size_t nlen, size_t mlen)
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{
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    return CRYPTO_ccm128_setiv(&ctx->ccm_ctx, nonce, nlen, mlen) == 0;
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}
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int ossl_ccm_generic_setaad(PROV_CCM_CTX *ctx, const unsigned char *aad,
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                            size_t alen)
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0
{
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0
    CRYPTO_ccm128_aad(&ctx->ccm_ctx, aad, alen);
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0
    return 1;
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0
}
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int ossl_ccm_generic_gettag(PROV_CCM_CTX *ctx, unsigned char *tag, size_t tlen)
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0
{
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0
    return CRYPTO_ccm128_tag(&ctx->ccm_ctx, tag, tlen) > 0;
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0
}
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int ossl_ccm_generic_auth_encrypt(PROV_CCM_CTX *ctx, const unsigned char *in,
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                                  unsigned char *out, size_t len,
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                                  unsigned char *tag, size_t taglen)
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658
{
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    int rv;
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    if (ctx->str != NULL)
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        rv = CRYPTO_ccm128_encrypt_ccm64(&ctx->ccm_ctx, in,
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                                         out, len, ctx->str) == 0;
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    else
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        rv = CRYPTO_ccm128_encrypt(&ctx->ccm_ctx, in, out, len) == 0;
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    if (rv == 1 && tag != NULL)
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0
        rv = (CRYPTO_ccm128_tag(&ctx->ccm_ctx, tag, taglen) > 0);
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    return rv;
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}
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int ossl_ccm_generic_auth_decrypt(PROV_CCM_CTX *ctx, const unsigned char *in,
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                                  unsigned char *out, size_t len,
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                                  unsigned char *expected_tag, size_t taglen)
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0
{
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0
    int rv = 0;
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0
    if (ctx->str != NULL)
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0
        rv = CRYPTO_ccm128_decrypt_ccm64(&ctx->ccm_ctx, in, out, len,
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                                         ctx->str) == 0;
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0
    else
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0
        rv = CRYPTO_ccm128_decrypt(&ctx->ccm_ctx, in, out, len) == 0;
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0
    if (rv) {
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0
        unsigned char tag[16];
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        if (!CRYPTO_ccm128_tag(&ctx->ccm_ctx, tag, taglen)
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0
            || CRYPTO_memcmp(tag, expected_tag, taglen) != 0)
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0
            rv = 0;
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0
    }
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0
    if (rv == 0)
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0
        OPENSSL_cleanse(out, len);
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0
    return rv;
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0
}