Gavin Andresen
13 years ago
16 changed files with 422 additions and 155 deletions
@ -0,0 +1,117 @@
@@ -0,0 +1,117 @@
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// Copyright (c) 2011 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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#include <openssl/ec.h> |
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#include <openssl/ecdsa.h> |
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// Generate a private key from just the secret parameter
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int EC_KEY_regenerate_key(EC_KEY *eckey, BIGNUM *priv_key) |
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{ |
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int ok = 0; |
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BN_CTX *ctx = NULL; |
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EC_POINT *pub_key = NULL; |
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if (!eckey) return 0; |
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const EC_GROUP *group = EC_KEY_get0_group(eckey); |
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if ((ctx = BN_CTX_new()) == NULL) |
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goto err; |
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pub_key = EC_POINT_new(group); |
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if (pub_key == NULL) |
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goto err; |
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if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, ctx)) |
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goto err; |
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EC_KEY_set_private_key(eckey,priv_key); |
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EC_KEY_set_public_key(eckey,pub_key); |
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ok = 1; |
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err: |
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if (pub_key) |
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EC_POINT_free(pub_key); |
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if (ctx != NULL) |
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BN_CTX_free(ctx); |
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return(ok); |
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} |
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// Perform ECDSA key recovery (see SEC1 4.1.6) for curves over (mod p)-fields
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// recid selects which key is recovered
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// if check is nonzero, additional checks are performed
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int ECDSA_SIG_recover_key_GFp(EC_KEY *eckey, ECDSA_SIG *ecsig, const unsigned char *msg, int msglen, int recid, int check) |
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{ |
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if (!eckey) return 0; |
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int ret = 0; |
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BN_CTX *ctx = NULL; |
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BIGNUM *x = NULL; |
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BIGNUM *e = NULL; |
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BIGNUM *order = NULL; |
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BIGNUM *sor = NULL; |
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BIGNUM *eor = NULL; |
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BIGNUM *field = NULL; |
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EC_POINT *R = NULL; |
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EC_POINT *O = NULL; |
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EC_POINT *Q = NULL; |
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BIGNUM *rr = NULL; |
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BIGNUM *zero = NULL; |
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int n = 0; |
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int i = recid / 2; |
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const EC_GROUP *group = EC_KEY_get0_group(eckey); |
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if ((ctx = BN_CTX_new()) == NULL) { ret = -1; goto err; } |
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BN_CTX_start(ctx); |
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order = BN_CTX_get(ctx); |
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if (!EC_GROUP_get_order(group, order, ctx)) { ret = -2; goto err; } |
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x = BN_CTX_get(ctx); |
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if (!BN_copy(x, order)) { ret=-1; goto err; } |
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if (!BN_mul_word(x, i)) { ret=-1; goto err; } |
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if (!BN_add(x, x, ecsig->r)) { ret=-1; goto err; } |
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field = BN_CTX_get(ctx); |
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if (!EC_GROUP_get_curve_GFp(group, field, NULL, NULL, ctx)) { ret=-2; goto err; } |
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if (BN_cmp(x, field) >= 0) { ret=0; goto err; } |
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if ((R = EC_POINT_new(group)) == NULL) { ret = -2; goto err; } |
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if (!EC_POINT_set_compressed_coordinates_GFp(group, R, x, recid % 2, ctx)) { ret=0; goto err; } |
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if (check) |
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{ |
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if ((O = EC_POINT_new(group)) == NULL) { ret = -2; goto err; } |
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if (!EC_POINT_mul(group, O, NULL, R, order, ctx)) { ret=-2; goto err; } |
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if (!EC_POINT_is_at_infinity(group, O)) { ret = 0; goto err; } |
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} |
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if ((Q = EC_POINT_new(group)) == NULL) { ret = -2; goto err; } |
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n = EC_GROUP_get_degree(group); |
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e = BN_CTX_get(ctx); |
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if (!BN_bin2bn(msg, msglen, e)) { ret=-1; goto err; } |
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if (8*msglen > n) BN_rshift(e, e, 8-(n & 7)); |
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zero = BN_CTX_get(ctx); |
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if (!BN_zero(zero)) { ret=-1; goto err; } |
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if (!BN_mod_sub(e, zero, e, order, ctx)) { ret=-1; goto err; } |
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rr = BN_CTX_get(ctx); |
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if (!BN_mod_inverse(rr, ecsig->r, order, ctx)) { ret=-1; goto err; } |
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sor = BN_CTX_get(ctx); |
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if (!BN_mod_mul(sor, ecsig->s, rr, order, ctx)) { ret=-1; goto err; } |
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eor = BN_CTX_get(ctx); |
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if (!BN_mod_mul(eor, e, rr, order, ctx)) { ret=-1; goto err; } |
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if (!EC_POINT_mul(group, Q, eor, R, sor, ctx)) { ret=-2; goto err; } |
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if (!EC_KEY_set_public_key(eckey, Q)) { ret=-2; goto err; } |
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ret = 1; |
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err: |
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if (ctx) { |
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BN_CTX_end(ctx); |
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BN_CTX_free(ctx); |
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} |
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if (R != NULL) EC_POINT_free(R); |
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if (O != NULL) EC_POINT_free(O); |
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if (Q != NULL) EC_POINT_free(Q); |
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return ret; |
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} |
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@ -0,0 +1,101 @@
@@ -0,0 +1,101 @@
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// Copyright (c) 2011 Bitcoin Developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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#include "headers.h" |
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#include "init.h" // for pwalletMain |
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#include "bitcoinrpc.h" |
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// #include <boost/asio.hpp>
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// #include <boost/iostreams/concepts.hpp>
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// #include <boost/iostreams/stream.hpp>
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#include <boost/lexical_cast.hpp> |
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// #ifdef USE_SSL
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// #include <boost/asio/ssl.hpp>
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// typedef boost::asio::ssl::stream<boost::asio::ip::tcp::socket> SSLStream;
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// #endif
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// #include <boost/xpressive/xpressive_dynamic.hpp>
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#include "json/json_spirit_reader_template.h" |
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#include "json/json_spirit_writer_template.h" |
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#include "json/json_spirit_utils.h" |
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#define printf OutputDebugStringF |
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// using namespace boost::asio;
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using namespace json_spirit; |
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using namespace std; |
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extern Object JSONRPCError(int code, const string& message); |
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class CTxDump |
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{ |
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public: |
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CBlockIndex *pindex; |
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int64 nValue; |
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bool fSpent; |
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CWalletTx* ptx; |
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int nOut; |
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CTxDump(CWalletTx* ptx = NULL, int nOut = -1) |
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{ |
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pindex = NULL; |
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nValue = 0; |
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fSpent = false; |
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this->ptx = ptx; |
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this->nOut = nOut; |
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} |
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}; |
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Value importprivkey(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() < 1 || params.size() > 2) |
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throw runtime_error( |
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"importprivkey <bitcoinprivkey> [label]\n" |
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"Adds a private key (as returned by dumpprivkey) to your wallet."); |
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string strSecret = params[0].get_str(); |
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string strLabel = ""; |
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if (params.size() > 1) |
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strLabel = params[1].get_str(); |
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CBitcoinSecret vchSecret; |
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bool fGood = vchSecret.SetString(strSecret); |
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if (!fGood) throw JSONRPCError(-5,"Invalid private key"); |
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CKey key; |
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key.SetSecret(vchSecret.GetSecret()); |
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CBitcoinAddress vchAddress = CBitcoinAddress(key.GetPubKey()); |
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CRITICAL_BLOCK(cs_main) |
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CRITICAL_BLOCK(pwalletMain->cs_wallet) |
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{ |
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pwalletMain->MarkDirty(); |
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pwalletMain->SetAddressBookName(vchAddress, strLabel); |
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if (!pwalletMain->AddKey(key)) |
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throw JSONRPCError(-4,"Error adding key to wallet"); |
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pwalletMain->ScanForWalletTransactions(pindexGenesisBlock, true); |
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pwalletMain->ReacceptWalletTransactions(); |
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} |
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MainFrameRepaint(); |
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return Value::null; |
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} |
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Value dumpprivkey(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() != 1) |
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throw runtime_error( |
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"dumpprivkey <bitcoinaddress>\n" |
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"Reveals the private key corresponding to <bitcoinaddress>."); |
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string strAddress = params[0].get_str(); |
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CBitcoinAddress address; |
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if (!address.SetString(strAddress)) |
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throw JSONRPCError(-5, "Invalid bitcoin address"); |
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CSecret vchSecret; |
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if (!pwalletMain->GetSecret(address, vchSecret)) |
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throw JSONRPCError(-4,"Private key for address " + strAddress + " is not known"); |
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return CBitcoinSecret(vchSecret).ToString(); |
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} |
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