diff options
Diffstat (limited to 'node/HMAC.cpp')
| -rw-r--r-- | node/HMAC.cpp | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/node/HMAC.cpp b/node/HMAC.cpp deleted file mode 100644 index d8a756a9..00000000 --- a/node/HMAC.cpp +++ /dev/null @@ -1,81 +0,0 @@ -/* - * ZeroTier One - Global Peer to Peer Ethernet - * Copyright (C) 2012-2013 ZeroTier Networks LLC - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * -- - * - * ZeroTier may be used and distributed under the terms of the GPLv3, which - * are available at: http://www.gnu.org/licenses/gpl-3.0.html - * - * If you would like to embed ZeroTier into a commercial application or - * redistribute it in a modified binary form, please contact ZeroTier Networks - * LLC. Start here: http://www.zerotier.com/ - */ - -#include "HMAC.hpp" - -#include <openssl/sha.h> - -namespace ZeroTier { - -void HMAC::sha256(const void *key,unsigned int klen,const void *message,unsigned int len,void *mac) - throw() -{ - union { - uint64_t q[12]; - uint8_t b[96]; - } key2,opad,ipad; - SHA256_CTX sha; - - if (klen == 32) { // this is what we use, so handle this quickly - key2.q[0] = ((const uint64_t *)key)[0]; - key2.q[1] = ((const uint64_t *)key)[1]; - key2.q[2] = ((const uint64_t *)key)[2]; - key2.q[3] = ((const uint64_t *)key)[3]; - key2.q[4] = 0ULL; - key2.q[5] = 0ULL; - key2.q[6] = 0ULL; - key2.q[7] = 0ULL; - } else { // for correctness and testing against test vectors - if (klen > 64) { - SHA256_Init(&sha); - SHA256_Update(&sha,key,klen); - SHA256_Final(key2.b,&sha); - klen = 32; - } else { - for(unsigned int i=0;i<klen;++i) - key2.b[i] = ((const uint8_t *)key)[i]; - } - while (klen < 64) - key2.b[klen++] = (uint8_t)0; - } - - for(unsigned int i=0;i<8;++i) - opad.q[i] = 0x5c5c5c5c5c5c5c5cULL ^ key2.q[i]; - for(unsigned int i=0;i<8;++i) - ipad.q[i] = 0x3636363636363636ULL ^ key2.q[i]; - - SHA256_Init(&sha); - SHA256_Update(&sha,(const unsigned char *)ipad.b,64); - SHA256_Update(&sha,(const unsigned char *)message,len); - SHA256_Final((unsigned char *)(opad.b + 64),&sha); - - SHA256_Init(&sha); - SHA256_Update(&sha,opad.b,96); - SHA256_Final((unsigned char *)mac,&sha); -} - -} // namespace ZeroTier |