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43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
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* Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (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 "internal/cryptlib.h"
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#include <openssl/bn.h>
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#include <openssl/rsa.h>
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int RSA_padding_add_none(unsigned char *to, int tlen,
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const unsigned char *from, int flen)
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{
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if (flen > tlen) {
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RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
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return 0;
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}
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if (flen < tlen) {
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RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE);
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return 0;
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}
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memcpy(to, from, (unsigned int)flen);
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return 1;
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}
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int RSA_padding_check_none(unsigned char *to, int tlen,
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const unsigned char *from, int flen, int num)
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{
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if (flen > tlen) {
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RSAerr(RSA_F_RSA_PADDING_CHECK_NONE, RSA_R_DATA_TOO_LARGE);
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return -1;
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}
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memset(to, 0, tlen - flen);
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memcpy(to + tlen - flen, from, flen);
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return tlen;
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}
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