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Some extra comments

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This commit is contained in:
Pieter Wuille
2011-11-07 00:05:42 +01:00
parent 81a28d7a6f
commit d825e6a31b
7 changed files with 80 additions and 9 deletions
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23
src/base58.h
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@@ -21,7 +21,7 @@
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;
@@ -62,11 +62,14 @@ inline std::string EncodeBase58(const unsigned char* pbegin, const unsigned char
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;
@@ -113,6 +116,8 @@ inline bool DecodeBase58(const char* psz, std::vector<unsigned char>& vchRet)
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);
@@ -121,7 +126,7 @@ inline bool DecodeBase58(const std::string& str, std::vector<unsigned char>& vch
// 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
@@ -131,6 +136,8 @@ inline std::string EncodeBase58Check(const std::vector<unsigned char>& vchIn)
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))
@@ -150,6 +157,8 @@ inline bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRe
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);
@@ -159,11 +168,14 @@ inline bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>
// 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()
@@ -174,6 +186,7 @@ protected:
~CBase58Data()
{
// zero the memory, as it may contain sensitive data
if (!vchData.empty())
memset(&vchData[0], 0, vchData.size());
}
@@ -238,7 +251,9 @@ public:
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: