100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
#include <fc/crypto/hex.hpp>
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#include <fc/fwd_impl.hpp>
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#include <openssl/sha.h>
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#include <string.h>
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#include <fc/crypto/sha224.hpp>
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#include <fc/variant.hpp>
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namespace fc {
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sha224::sha224() { memset( _hash, 0, sizeof(_hash) ); }
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sha224::sha224( const string& hex_str ) {
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fc::from_hex( hex_str, (char*)_hash, sizeof(_hash) );
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}
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string sha224::str()const {
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return fc::to_hex( (char*)_hash, sizeof(_hash) );
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}
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sha224::operator string()const { return str(); }
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char* sha224::data()const { return (char*)&_hash[0]; }
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struct sha224::encoder::impl {
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SHA256_CTX ctx;
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};
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sha224::encoder::~encoder() {}
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sha224::encoder::encoder() {
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reset();
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}
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sha224 sha224::hash( const char* d, uint32_t dlen ) {
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encoder e;
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e.write(d,dlen);
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return e.result();
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}
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sha224 sha224::hash( const string& s ) {
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return hash( s.c_str(), s.size() );
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}
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void sha224::encoder::write( const char* d, uint32_t dlen ) {
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SHA224_Update( &my->ctx, d, dlen);
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}
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sha224 sha224::encoder::result() {
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sha224 h;
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SHA224_Final((uint8_t*)h.data(), &my->ctx );
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return h;
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}
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void sha224::encoder::reset() {
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SHA224_Init( &my->ctx);
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}
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sha224 operator << ( const sha224& h1, uint32_t i ) {
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sha224 result;
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uint8_t* r = (uint8_t*)&result;//result._hash;
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uint8_t* s = (uint8_t*)&h1;//h1._hash;
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for( uint32_t p = 0; p < sizeof(sha224)-1; ++p )
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r[p] = s[p] << i | (s[p+1]>>(8-i));
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r[sizeof(sha224)-1] = s[sizeof(sha224)-1] << i;
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return result;
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}
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sha224 operator ^ ( const sha224& h1, const sha224& h2 ) {
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sha224 result;
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result._hash[0] = h1._hash[0] ^ h2._hash[0];
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result._hash[1] = h1._hash[1] ^ h2._hash[1];
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result._hash[2] = h1._hash[2] ^ h2._hash[2];
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result._hash4 = h1._hash4 ^ h2._hash4;
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return result;
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}
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bool operator >= ( const sha224& h1, const sha224& h2 ) {
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return memcmp( h1._hash, h2._hash, sizeof(sha224) ) >= 0;
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}
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bool operator > ( const sha224& h1, const sha224& h2 ) {
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return memcmp( h1._hash, h2._hash, sizeof(sha224) ) > 0;
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}
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bool operator < ( const sha224& h1, const sha224& h2 ) {
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return memcmp( h1._hash, h2._hash, sizeof(sha224) ) < 0;
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}
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bool operator != ( const sha224& h1, const sha224& h2 ) {
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return memcmp( h1._hash, h2._hash, sizeof(sha224) ) != 0;
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}
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bool operator == ( const sha224& h1, const sha224& h2 ) {
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return memcmp( h1._hash, h2._hash, sizeof(sha224) ) == 0;
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}
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void to_variant( const sha224& bi, variant& v )
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{
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v = std::vector<char>( (const char*)&bi, ((const char*)&bi) + sizeof(bi) );
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}
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void from_variant( const variant& v, sha224& bi )
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{
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std::vector<char> ve = v.as< std::vector<char> >();
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if( ve.size() )
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{
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memcpy(&bi, ve.data(), fc::min<size_t>(ve.size(),sizeof(bi)) );
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}
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else
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memset( &bi, char(0), sizeof(bi) );
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}
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}
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