64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
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* Copyright (c) 2017 Thomas Pornin <pornin@bolet.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "inner.h"
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#if BR_INT128 || BR_UMUL128
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/* see bearssl_rsa.h */
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uint32_t
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br_rsa_i62_pkcs1_vrfy(const unsigned char *x, size_t xlen,
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const unsigned char *hash_oid, size_t hash_len,
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const br_rsa_public_key *pk, unsigned char *hash_out)
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{
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unsigned char sig[BR_MAX_RSA_SIZE >> 3];
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if (xlen > (sizeof sig)) {
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return 0;
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}
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memcpy(sig, x, xlen);
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if (!br_rsa_i62_public(sig, xlen, pk)) {
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return 0;
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}
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return br_rsa_pkcs1_sig_unpad(sig, xlen, hash_oid, hash_len, hash_out);
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}
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/* see bearssl_rsa.h */
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br_rsa_pkcs1_vrfy
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br_rsa_i62_pkcs1_vrfy_get(void)
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{
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return &br_rsa_i62_pkcs1_vrfy;
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}
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#else
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/* see bearssl_rsa.h */
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br_rsa_pkcs1_vrfy
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br_rsa_i62_pkcs1_vrfy_get(void)
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{
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return 0;
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}
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#endif
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