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author | Wladimir J. van der Laan <laanwj@gmail.com> | 2014-11-04 08:58:43 +0100 |
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committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2014-11-04 09:26:45 +0100 |
commit | 73b82a30892224b17aa1b9db9b6de4eeeb903b7f (patch) | |
tree | 0416c14ba1e546a85abc8ab71320bd3f6e5a62c7 /src/hash.cpp | |
parent | ff17816abf2d2be2b349c4ba4d49633a126074fa (diff) | |
parent | d2e74c55bdd8cee6a0cca49aca0e2ab1a182c9b5 (diff) | |
download | bitcoin-73b82a30892224b17aa1b9db9b6de4eeeb903b7f.tar.xz |
Merge pull request #5162
d2e74c5 boost: moveonly: split CPubKey and friends to new files (Cory Fields)
78c228c boost: moveonly: move BIP32Hash to hash.h (Cory Fields)
900078a boost: moveonly: create eccryptoverify.h|cpp and move helper functions there (Cory Fields)
Diffstat (limited to 'src/hash.cpp')
-rw-r--r-- | src/hash.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/hash.cpp b/src/hash.cpp index 218607a6fd..29376b45aa 100644 --- a/src/hash.cpp +++ b/src/hash.cpp @@ -63,3 +63,16 @@ unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char return h1; } + +void BIP32Hash(const unsigned char chainCode[32], unsigned int nChild, unsigned char header, const unsigned char data[32], unsigned char output[64]) +{ + unsigned char num[4]; + num[0] = (nChild >> 24) & 0xFF; + num[1] = (nChild >> 16) & 0xFF; + num[2] = (nChild >> 8) & 0xFF; + num[3] = (nChild >> 0) & 0xFF; + CHMAC_SHA512(chainCode, 32).Write(&header, 1) + .Write(data, 32) + .Write(num, 4) + .Finalize(output); +} |