// 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.
#include <string>
#include <vector>
#include "bignum.h"
+#include "key.h"
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()
{
+ // zero the memory, as it may contain sensitive data
if (!vchData.empty())
memset(&vchData[0], 0, vchData.size());
}
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)
+ void SetHash160(const uint160& hash160)
{
SetData(fTestNet ? 111 : 0, &hash160, 20);
- return true;
}
- bool SetPubKey(const std::vector<unsigned char>& vchPubKey)
+ void SetPubKey(const std::vector<unsigned char>& vchPubKey)
{
- return SetHash160(Hash160(vchPubKey));
+ SetHash160(Hash160(vchPubKey));
+ }
+
+ bool SetScriptHash160(const uint160& hash160)
+ {
+ SetData(fTestNet ? 112 : 1, &hash160, 20);
+ return true;
}
bool IsValid() const
switch(nVersion)
{
case 0:
+ nExpectedSize = 20; // Hash of public key
+ fExpectTestNet = false;
+ break;
+ case 1:
+ nExpectedSize = 20; // OP_EVAL, hash of CScript
+ fExpectTestNet = false;
break;
case 111:
+ nExpectedSize = 20;
+ fExpectTestNet = true;
+ break;
+ case 112:
+ nExpectedSize = 20;
fExpectTestNet = true;
break;
}
return fExpectTestNet == fTestNet && vchData.size() == nExpectedSize;
}
+ bool IsScript() const
+ {
+ if (!IsValid())
+ return false;
+ if (fTestNet)
+ return nVersion == 112;
+ return nVersion == 1;
+ }
CBitcoinAddress()
{
}
};
+class CBitcoinSecret : public CBase58Data
+{
+public:
+ void SetSecret(const CSecret& vchSecret)
+ {
+ SetData(fTestNet ? 239 : 128, &vchSecret[0], vchSecret.size());
+ }
+
+ CSecret GetSecret()
+ {
+ CSecret vchSecret;
+ vchSecret.resize(vchData.size());
+ memcpy(&vchSecret[0], &vchData[0], vchData.size());
+ return vchSecret;
+ }
+
+ bool IsValid() const
+ {
+ int nExpectedSize = 32;
+ bool fExpectTestNet = false;
+ switch(nVersion)
+ {
+ case 128:
+ break;
+
+ case 239:
+ fExpectTestNet = true;
+ break;
+
+ default:
+ return false;
+ }
+ return fExpectTestNet == fTestNet && vchData.size() == nExpectedSize;
+ }
+
+ CBitcoinSecret(const CSecret& vchSecret)
+ {
+ SetSecret(vchSecret);
+ }
+
+ CBitcoinSecret()
+ {
+ }
+};
+
#endif