// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2012 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.
+// file COPYING 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()
{
- 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.
+ * Public-key-hash-addresses have version 0 (or 111 testnet).
+ * The data vector contains RIPEMD160(SHA256(pubkey)), where pubkey is the serialized public key.
+ * Script-hash-addresses have version 5 (or 196 testnet).
+ * The data vector contains RIPEMD160(SHA256(cscript)), where cscript is the serialized redemption script.
+ */
class CBitcoinAddress : public CBase58Data
{
public:
+ enum
+ {
+ PUBKEY_ADDRESS = 0,
+ SCRIPT_ADDRESS = 5,
+ PUBKEY_ADDRESS_TEST = 111,
+ SCRIPT_ADDRESS_TEST = 196,
+ };
+
bool SetHash160(const uint160& hash160)
{
- SetData(fTestNet ? 111 : 0, &hash160, 20);
+ SetData(fTestNet ? PUBKEY_ADDRESS_TEST : PUBKEY_ADDRESS, &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 ? SCRIPT_ADDRESS_TEST : SCRIPT_ADDRESS, &hash160, 20);
+ return true;
}
bool IsValid() const
{
- int nExpectedSize = 20;
+ unsigned int nExpectedSize = 20;
bool fExpectTestNet = false;
switch(nVersion)
{
- case 0:
+ case PUBKEY_ADDRESS:
+ nExpectedSize = 20; // Hash of public key
+ fExpectTestNet = false;
+ break;
+ case SCRIPT_ADDRESS:
+ nExpectedSize = 20; // Hash of CScript
+ fExpectTestNet = false;
break;
- case 111:
+ case PUBKEY_ADDRESS_TEST:
+ nExpectedSize = 20;
+ fExpectTestNet = true;
+ break;
+ case SCRIPT_ADDRESS_TEST:
+ nExpectedSize = 20;
fExpectTestNet = true;
break;
}
return fExpectTestNet == fTestNet && vchData.size() == nExpectedSize;
}
+ bool IsScript() const
+ {
+ if (!IsValid())
+ return false;
+ if (fTestNet)
+ return nVersion == SCRIPT_ADDRESS_TEST;
+ return nVersion == SCRIPT_ADDRESS;
+ }
CBitcoinAddress()
{
}
};
+/** A base58-encoded secret key */
+class CBitcoinSecret : public CBase58Data
+{
+public:
+ void SetSecret(const CSecret& vchSecret, bool fCompressed)
+ {
+ assert(vchSecret.size() == 32);
+ SetData(fTestNet ? 239 : 128, &vchSecret[0], vchSecret.size());
+ if (fCompressed)
+ vchData.push_back(1);
+ }
+
+ CSecret GetSecret(bool &fCompressedOut)
+ {
+ CSecret vchSecret;
+ vchSecret.resize(32);
+ memcpy(&vchSecret[0], &vchData[0], 32);
+ fCompressedOut = vchData.size() == 33;
+ return vchSecret;
+ }
+
+ bool IsValid() const
+ {
+ bool fExpectTestNet = false;
+ switch(nVersion)
+ {
+ case 128:
+ break;
+
+ case 239:
+ fExpectTestNet = true;
+ break;
+
+ default:
+ return false;
+ }
+ return fExpectTestNet == fTestNet && (vchData.size() == 32 || (vchData.size() == 33 && vchData[32] == 1));
+ }
+
+ bool SetString(const char* pszSecret)
+ {
+ return CBase58Data::SetString(pszSecret) && IsValid();
+ }
+
+ bool SetString(const std::string& strSecret)
+ {
+ return SetString(strSecret.c_str());
+ }
+
+ CBitcoinSecret(const CSecret& vchSecret, bool fCompressed)
+ {
+ SetSecret(vchSecret, fCompressed);
+ }
+
+ CBitcoinSecret()
+ {
+ }
+};
+
#endif
git://git.novaco.in / novacoin.git / blobdiff