A local copy of OpenSSL from GitHub
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
* Licensed under the OpenSSL license (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
#include "internal/cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
int RSA_padding_add_none(unsigned char *to, int tlen,
const unsigned char *from, int flen)
if (flen > tlen) {
return (0);
if (flen < tlen) {
return (0);
memcpy(to, from, (unsigned int)flen);
return (1);
int RSA_padding_check_none(unsigned char *to, int tlen,
const unsigned char *from, int flen, int num)
if (flen > tlen) {
return (-1);
memset(to, 0, tlen - flen);
memcpy(to + tlen - flen, from, flen);
return (tlen);