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6861f954f8
Move util/message to common/signmessage so it is named more clearly, and because the util library is not supposed to depend on other libraries besides the crypto library. The signmessage functions use CKey, CPubKey, PKHash, and DecodeDestination functions in the consensus and common libraries.
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
// Copyright (c) 2011-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <common/signmessage.h>
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#include <key_io.h>
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#include <rpc/util.h>
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#include <wallet/rpc/util.h>
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#include <wallet/wallet.h>
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#include <univalue.h>
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namespace wallet {
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RPCHelpMan signmessage()
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{
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return RPCHelpMan{"signmessage",
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"\nSign a message with the private key of an address" +
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HELP_REQUIRING_PASSPHRASE,
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{
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{"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The bitcoin address to use for the private key."},
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{"message", RPCArg::Type::STR, RPCArg::Optional::NO, "The message to create a signature of."},
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},
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RPCResult{
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RPCResult::Type::STR, "signature", "The signature of the message encoded in base 64"
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},
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RPCExamples{
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"\nUnlock the wallet for 30 seconds\n"
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+ HelpExampleCli("walletpassphrase", "\"mypassphrase\" 30") +
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"\nCreate the signature\n"
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+ HelpExampleCli("signmessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" \"my message\"") +
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"\nVerify the signature\n"
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+ HelpExampleCli("verifymessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" \"signature\" \"my message\"") +
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"\nAs a JSON-RPC call\n"
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+ HelpExampleRpc("signmessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\", \"my message\"")
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},
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[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
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{
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const std::shared_ptr<const CWallet> pwallet = GetWalletForJSONRPCRequest(request);
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if (!pwallet) return UniValue::VNULL;
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LOCK(pwallet->cs_wallet);
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EnsureWalletIsUnlocked(*pwallet);
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std::string strAddress = request.params[0].get_str();
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std::string strMessage = request.params[1].get_str();
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CTxDestination dest = DecodeDestination(strAddress);
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if (!IsValidDestination(dest)) {
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address");
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}
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const PKHash* pkhash = std::get_if<PKHash>(&dest);
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if (!pkhash) {
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throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to key");
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}
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std::string signature;
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SigningResult err = pwallet->SignMessage(strMessage, *pkhash, signature);
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if (err == SigningResult::SIGNING_FAILED) {
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, SigningResultString(err));
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} else if (err != SigningResult::OK) {
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throw JSONRPCError(RPC_WALLET_ERROR, SigningResultString(err));
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}
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return signature;
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},
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};
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}
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} // namespace wallet
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