LCOV - code coverage report
Current view: top level - src/crypto - hmac_sha256.cpp (source / functions) Hit Total Coverage
Test: coverage.lcov Lines: 21 21 100.0 %
Date: 2022-04-21 14:51:19 Functions: 2 2 100.0 %
Legend: Modified by patch:
Lines: hit not hit | Branches: + taken - not taken # not executed

Not modified by patch:
Lines: hit not hit | Branches: + taken - not taken # not executed
Branches: 6 6 100.0 %

           Branch data     Line data    Source code
#       1                 :            : // Copyright (c) 2014-2018 The Bitcoin Core developers
#       2                 :            : // Distributed under the MIT software license, see the accompanying
#       3                 :            : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
#       4                 :            : 
#       5                 :            : #include <crypto/hmac_sha256.h>
#       6                 :            : 
#       7                 :            : #include <string.h>
#       8                 :            : 
#       9                 :            : CHMAC_SHA256::CHMAC_SHA256(const unsigned char* key, size_t keylen)
#      10                 :         46 : {
#      11                 :         46 :     unsigned char rkey[64];
#      12         [ +  + ]:         46 :     if (keylen <= 64) {
#      13                 :         38 :         memcpy(rkey, key, keylen);
#      14                 :         38 :         memset(rkey + keylen, 0, 64 - keylen);
#      15                 :         38 :     } else {
#      16                 :          8 :         CSHA256().Write(key, keylen).Finalize(rkey);
#      17                 :          8 :         memset(rkey + 32, 0, 32);
#      18                 :          8 :     }
#      19                 :            : 
#      20         [ +  + ]:       2990 :     for (int n = 0; n < 64; n++)
#      21                 :       2944 :         rkey[n] ^= 0x5c;
#      22                 :         46 :     outer.Write(rkey, 64);
#      23                 :            : 
#      24         [ +  + ]:       2990 :     for (int n = 0; n < 64; n++)
#      25                 :       2944 :         rkey[n] ^= 0x5c ^ 0x36;
#      26                 :         46 :     inner.Write(rkey, 64);
#      27                 :         46 : }
#      28                 :            : 
#      29                 :            : void CHMAC_SHA256::Finalize(unsigned char hash[OUTPUT_SIZE])
#      30                 :       6924 : {
#      31                 :       6924 :     unsigned char temp[32];
#      32                 :       6924 :     inner.Finalize(temp);
#      33                 :       6924 :     outer.Write(temp, 32).Finalize(hash);
#      34                 :       6924 : }

Generated by: LCOV version 0-eol-96201-ge66f56f4af6a