structure

Author: benjyc

bitcoin-0.1.0.tgz

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+Copyright (c) 2009 Satoshi Nakamoto
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

bitcoin0.1/bitcoin.exe

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+BitCoin v0.01 ALPHA
+
+Copyright (c) 2009 Satoshi Nakamoto
+Distributed under the MIT/X11 software license, see the accompanying
+file license.txt or http://www.opensource.org/licenses/mit-license.php.
+This product includes software developed by the OpenSSL Project for use in
+the OpenSSL Toolkit (http://www.openssl.org/).  This product includes
+cryptographic software written by Eric Young ([email protected]).
+
+
+Intro
+-----
+Bitcoin is an electronic cash system that uses a peer-to-peer network to
+prevent double-spending.  It's completely decentralized with no server or
+central authority.
+
+
+Operating Systems
+-----------------
+Windows NT/2000/XP (and probably Vista)
+
+Vista hasn't been tested yet.  All the libraries used are cross-platform, so
+there's nothing preventing future Linux and Mac builds.
+
+
+Setup
+-----
+Unpack the files into a directory and run bitcoin.exe.
+
+The software automatically finds other nodes to connect to.  You should set
+your firewall to forward port 8333 to your computer so you can receive incoming
+connections, otherwise the nodes you can connect with will be limited.
+
+To support the network by running a node, select:
+
+  Options->Generate Coins
+
+and keep the program open or minimized.  It runs at idle priority when no other
+programs are using the CPU.  Your computer will be solving a very difficult
+computational problem that is used to lock in blocks of transactions.  The time
+to generate a block varies each time, but may take days or months, depending
+on the speed of your computer and the competition on the network.  It's not a
+computation that has to start over from the beginning if you stop and restart
+it.  A solution might be found at any given moment it's running.  As a reward
+for supporting the network, you receive coins when you successfully generate a
+block.

bitcoin0.1/libeay32.dll

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+// Copyright (c) 2009 Satoshi Nakamoto
+// Distributed under the MIT/X11 software license, see the accompanying
+// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+
+
+//
+// Why base-58 instead of standard base-64 encoding?
+// - Don't want 0OIl characters that look the same in some fonts and
+//      could be used to create visually identical looking account numbers.
+// - A string with non-alphanumeric characters is not as easily accepted as an account number.
+// - E-mail usually won't line-break if there's no punctuation to break at.
+// - Doubleclicking selects the whole number as one word if it's all alphanumeric.
+//
+
+
+static const char* pszBase58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
+
+
+inline string EncodeBase58(const unsigned char* pbegin, const unsigned char* pend)
+{
+    CAutoBN_CTX pctx;
+    CBigNum bn58 = 58;
+    CBigNum bn0 = 0;
+
+    // Convert big endian data to little endian
+    // Extra zero at the end make sure bignum will interpret as a positive number
+    vector<unsigned char> vchTmp(pend-pbegin+1, 0);
+    reverse_copy(pbegin, pend, vchTmp.begin());
+
+    // Convert little endian data to bignum
+    CBigNum bn;
+    bn.setvch(vchTmp);
+
+    // Convert bignum to string
+    string str;
+    str.reserve((pend - pbegin) * 138 / 100 + 1);
+    CBigNum dv;
+    CBigNum rem;
+    while (bn > bn0)
+    {
+        if (!BN_div(&dv, &rem, &bn, &bn58, pctx))
+            throw bignum_error("EncodeBase58 : BN_div failed");
+        bn = dv;
+        unsigned int c = rem.getulong();
+        str += pszBase58[c];
+    }
+
+    // Leading zeroes encoded as base58 zeros
+    for (const unsigned char* p = pbegin; p < pend && *p == 0; p++)
+        str += pszBase58[0];
+
+    // Convert little endian string to big endian
+    reverse(str.begin(), str.end());
+    return str;
+}
+
+inline string EncodeBase58(const vector<unsigned char>& vch)
+{
+    return EncodeBase58(&vch[0], &vch[0] + vch.size());
+}
+
+inline bool DecodeBase58(const char* psz, vector<unsigned char>& vchRet)
+{
+    CAutoBN_CTX pctx;
+    vchRet.clear();
+    CBigNum bn58 = 58;
+    CBigNum bn = 0;
+    CBigNum bnChar;
+    while (isspace(*psz))
+        psz++;
+
+    // Convert big endian string to bignum
+    for (const char* p = psz; *p; p++)
+    {
+        const char* p1 = strchr(pszBase58, *p);
+        if (p1 == NULL)
+        {
+            while (isspace(*p))
+                p++;
+            if (*p != '\0')
+                return false;
+            break;
+        }
+        bnChar.setulong(p1 - pszBase58);
+        if (!BN_mul(&bn, &bn, &bn58, pctx))
+            throw bignum_error("DecodeBase58 : BN_mul failed");
+        bn += bnChar;
+    }
+
+    // Get bignum as little endian data
+    vector<unsigned char> vchTmp = bn.getvch();
+
+    // Trim off sign byte if present
+    if (vchTmp.size() >= 2 && vchTmp.end()[-1] == 0 && vchTmp.end()[-2] >= 0x80)
+        vchTmp.erase(vchTmp.end()-1);
+
+    // Restore leading zeros
+    int nLeadingZeros = 0;
+    for (const char* p = psz; *p == pszBase58[0]; p++)
+        nLeadingZeros++;
+    vchRet.assign(nLeadingZeros + vchTmp.size(), 0);
+
+    // Convert little endian data to big endian
+    reverse_copy(vchTmp.begin(), vchTmp.end(), vchRet.end() - vchTmp.size());
+    return true;
+}
+
+inline bool DecodeBase58(const string& str, vector<unsigned char>& vchRet)
+{
+    return DecodeBase58(str.c_str(), vchRet);
+}
+
+
+
+
+
+inline string EncodeBase58Check(const vector<unsigned char>& vchIn)
+{
+    // add 4-byte hash check to the end
+    vector<unsigned char> vch(vchIn);
+    uint256 hash = Hash(vch.begin(), vch.end());
+    vch.insert(vch.end(), (unsigned char*)&hash, (unsigned char*)&hash + 4);
+    return EncodeBase58(vch);
+}
+
+inline bool DecodeBase58Check(const char* psz, vector<unsigned char>& vchRet)
+{
+    if (!DecodeBase58(psz, vchRet))
+        return false;
+    if (vchRet.size() < 4)
+    {
+        vchRet.clear();
+        return false;
+    }
+    uint256 hash = Hash(vchRet.begin(), vchRet.end()-4);
+    if (memcmp(&hash, &vchRet.end()[-4], 4) != 0)
+    {
+        vchRet.clear();
+        return false;
+    }
+    vchRet.resize(vchRet.size()-4);
+    return true;
+}
+
+inline bool DecodeBase58Check(const string& str, vector<unsigned char>& vchRet)
+{
+    return DecodeBase58Check(str.c_str(), vchRet);
+}
+
+
+
+
+
+
+static const unsigned char ADDRESSVERSION = 0;
+
+inline string Hash160ToAddress(uint160 hash160)
+{
+    // add 1-byte version number to the front
+    vector<unsigned char> vch(1, ADDRESSVERSION);
+    vch.insert(vch.end(), UBEGIN(hash160), UEND(hash160));
+    return EncodeBase58Check(vch);
+}
+
+inline bool AddressToHash160(const char* psz, uint160& hash160Ret)
+{
+    vector<unsigned char> vch;
+    if (!DecodeBase58Check(psz, vch))
+        return false;
+    if (vch.empty())
+        return false;
+    unsigned char nVersion = vch[0];
+    if (vch.size() != sizeof(hash160Ret) + 1)
+        return false;
+    memcpy(&hash160Ret, &vch[1], sizeof(hash160Ret));
+    return (nVersion <= ADDRESSVERSION);
+}
+
+inline bool AddressToHash160(const string& str, uint160& hash160Ret)
+{
+    return AddressToHash160(str.c_str(), hash160Ret);
+}
+
+inline bool IsValidBitcoinAddress(const char* psz)
+{
+    uint160 hash160;
+    return AddressToHash160(psz, hash160);
+}
+
+inline bool IsValidBitcoinAddress(const string& str)
+{
+    return IsValidBitcoinAddress(str.c_str());
+}
+
+
+
+
+inline string PubKeyToAddress(const vector<unsigned char>& vchPubKey)
+{
+    return Hash160ToAddress(Hash160(vchPubKey));
+}