// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2011 The Bitcoin Developers
// Distributed under the MIT/X11 software license, see the accompanying
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
static const char* pszBase58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
-
+// Encode a byte sequence as a base58-encoded string
inline std::string EncodeBase58(const unsigned char* pbegin, const unsigned char* pend)
{
CAutoBN_CTX pctx;
return str;
}
+// Encode a byte vector as a base58-encoded string
inline std::string EncodeBase58(const std::vector<unsigned char>& vch)
{
return EncodeBase58(&vch[0], &vch[0] + vch.size());
}
+// Decode a base58-encoded string psz into byte vector vchRet
+// returns true if decoding is succesful
inline bool DecodeBase58(const char* psz, std::vector<unsigned char>& vchRet)
{
CAutoBN_CTX pctx;
return true;
}
+// Decode a base58-encoded string str into byte vector vchRet
+// returns true if decoding is succesful
inline bool DecodeBase58(const std::string& str, std::vector<unsigned char>& vchRet)
{
return DecodeBase58(str.c_str(), vchRet);
-
+// Encode a byte vector to a base58-encoded string, including checksum
inline std::string EncodeBase58Check(const std::vector<unsigned char>& vchIn)
{
// add 4-byte hash check to the end
return EncodeBase58(vch);
}
+// Decode a base58-encoded string psz that includes a checksum, into byte vector vchRet
+// returns true if decoding is succesful
inline bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRet)
{
if (!DecodeBase58(psz, vchRet))
return true;
}
+// Decode a base58-encoded string str that includes a checksum, into byte vector vchRet
+// returns true if decoding is succesful
inline bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>& vchRet)
{
return DecodeBase58Check(str.c_str(), vchRet);
-
+// Base class for all base58-encoded data
class CBase58Data
{
protected:
+ // the version byte
unsigned char nVersion;
+
+ // the actually encoded data
std::vector<unsigned char> vchData;
CBase58Data()
~CBase58Data()
{
- memset(&vchData[0], 0, vchData.size());
+ // zero the memory, as it may contain sensitive data
+ if (!vchData.empty())
+ memset(&vchData[0], 0, vchData.size());
}
void SetData(int nVersionIn, const void* pdata, size_t nSize)
{
nVersion = nVersionIn;
vchData.resize(nSize);
- memcpy(&vchData[0], pdata, nSize);
+ if (!vchData.empty())
+ memcpy(&vchData[0], pdata, nSize);
}
void SetData(int nVersionIn, const unsigned char *pbegin, const unsigned char *pend)
}
nVersion = vchTemp[0];
vchData.resize(vchTemp.size() - 1);
- memcpy(&vchData[0], &vchTemp[1], vchData.size());
+ if (!vchData.empty())
+ memcpy(&vchData[0], &vchTemp[1], vchData.size());
memset(&vchTemp[0], 0, vchTemp.size());
return true;
}
int CompareTo(const CBase58Data& b58) const
{
if (nVersion < b58.nVersion) return -1;
- if (nVersion < b58.nVersion) return 1;
+ if (nVersion > b58.nVersion) return 1;
if (vchData < b58.vchData) return -1;
if (vchData > b58.vchData) return 1;
return 0;
bool operator> (const CBase58Data& b58) const { return CompareTo(b58) > 0; }
};
-
+// base58-encoded bitcoin addresses
+// Addresses have version 0 or 111 (testnet)
+// The data vector contains RIPEMD160(SHA256(pubkey)), where pubkey is the serialized public key
class CBitcoinAddress : public CBase58Data
{
public:
bool SetHash160(const uint160& hash160)
{
SetData(fTestNet ? 111 : 0, &hash160, 20);
+ return true;
}
bool SetPubKey(const std::vector<unsigned char>& vchPubKey)