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added hash64 function that uses sha256 to replace city_hash in blockchain and message protocol-related hashing

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This commit is contained in:
dnotestein 2014-03-30 14:16:33 -04:00
parent bdeefb48bf
commit f09c91f878
3 changed files with 11 additions and 2 deletions
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2
include/fc/crypto/sha256.hpp
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@ -81,6 +81,8 @@ class sha256
void to_variant( const sha256& bi, variant& v ); void to_variant( const sha256& bi, variant& v );
void from_variant( const variant& v, sha256& bi ); void from_variant( const variant& v, sha256& bi );
uint64_t hash64(const char* buf, size_t len);
} // fc } // fc
namespace std namespace std
{ {

2
src/crypto/elliptic.cpp
View file

@ -264,7 +264,7 @@ namespace fc { namespace ecc {
std::string public_key::to_base58() const std::string public_key::to_base58() const
{ {
public_key_data key = serialize(); public_key_data key = serialize();
uint32_t check = uint32_t(city_hash64(key.data, sizeof(key))); uint32_t check = uint32_t(fc::hash64(key.data, sizeof(key)));
assert(key.size() + sizeof(check) == 37); assert(key.size() + sizeof(check) == 37);
array<char, 37> data; array<char, 37> data;
memcpy(data.data, key.begin(), key.size()); memcpy(data.data, key.begin(), key.size());

9
src/crypto/sha256.cpp
View file

@ -103,4 +103,11 @@ namespace fc {
else else
memset( &bi, char(0), sizeof(bi) ); memset( &bi, char(0), sizeof(bi) );
} }
}
uint64_t hash64(const char* buf, size_t len)
{
sha256 sha_value = sha256::hash(buf,len);
return sha_value._hash[0];
}
} //end namespace fc