Branch data Line data Source code
1 : : // Copyright (c) 2011-2022 The Bitcoin Core developers
2 : : // Distributed under the MIT software license, see the accompanying
3 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 : :
5 : : #include <common/signmessage.h>
6 : : #include <key_io.h>
7 : : #include <rpc/util.h>
8 : : #include <wallet/rpc/util.h>
9 : : #include <wallet/wallet.h>
10 : :
11 : : #include <univalue.h>
12 : :
13 : : namespace wallet {
14 : 10 : RPCHelpMan signmessage()
15 : : {
16 : 10 : return RPCHelpMan{
17 : : "signmessage",
18 : 10 : "Sign a message with the private key of an address" +
19 [ + - ]: 10 : HELP_REQUIRING_PASSPHRASE,
20 : : {
21 [ + - ]: 10 : {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The bitcoin address to use for the private key."},
22 [ + - ]: 10 : {"message", RPCArg::Type::STR, RPCArg::Optional::NO, "The message to create a signature of."},
23 : : },
24 : 0 : RPCResult{
25 : : RPCResult::Type::STR, "signature", "The signature of the message encoded in base 64"
26 [ + - + - : 20 : },
+ - ]
27 : 10 : RPCExamples{
28 : : "\nUnlock the wallet for 30 seconds\n"
29 [ + - + - : 20 : + HelpExampleCli("walletpassphrase", "\"mypassphrase\" 30") +
+ - + - ]
30 : 10 : "\nCreate the signature\n"
31 [ + - + - : 40 : + HelpExampleCli("signmessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" \"my message\"") +
+ - + - ]
32 : 10 : "\nVerify the signature\n"
33 [ + - + - : 40 : + HelpExampleCli("verifymessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" \"signature\" \"my message\"") +
+ - + - ]
34 : 10 : "\nAs a JSON-RPC call\n"
35 [ + - + - : 40 : + HelpExampleRpc("signmessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\", \"my message\"")
+ - + - ]
36 [ + - ]: 10 : },
37 : 0 : [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
38 : : {
39 [ # # ]: 0 : const std::shared_ptr<const CWallet> pwallet = GetWalletForJSONRPCRequest(request);
40 [ # # ]: 0 : if (!pwallet) return UniValue::VNULL;
41 : :
42 [ # # ]: 0 : LOCK(pwallet->cs_wallet);
43 : :
44 [ # # ]: 0 : EnsureWalletIsUnlocked(*pwallet);
45 : :
46 [ # # # # : 0 : std::string strAddress = request.params[0].get_str();
# # ]
47 [ # # # # : 0 : std::string strMessage = request.params[1].get_str();
# # ]
48 : :
49 [ # # ]: 0 : CTxDestination dest = DecodeDestination(strAddress);
50 [ # # # # ]: 0 : if (!IsValidDestination(dest)) {
51 [ # # # # ]: 0 : throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address");
52 : : }
53 : :
54 [ # # ]: 0 : const PKHash* pkhash = std::get_if<PKHash>(&dest);
55 : 0 : if (!pkhash) {
56 [ # # # # ]: 0 : throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to key");
57 : : }
58 : :
59 [ # # ]: 0 : std::string signature;
60 [ # # ]: 0 : SigningResult err = pwallet->SignMessage(strMessage, *pkhash, signature);
61 [ # # ]: 0 : if (err == SigningResult::SIGNING_FAILED) {
62 [ # # # # ]: 0 : throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, SigningResultString(err));
63 [ # # ]: 0 : } else if (err != SigningResult::OK) {
64 [ # # # # ]: 0 : throw JSONRPCError(RPC_WALLET_ERROR, SigningResultString(err));
65 : : }
66 : :
67 [ # # ]: 0 : return signature;
68 [ # # ]: 0 : },
69 [ + - + - : 140 : };
+ - + - +
- + - + -
+ + - - ]
70 [ + - + - : 50 : }
+ - - - ]
71 : : } // namespace wallet
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