69 lines
2.6 KiB
C++
69 lines
2.6 KiB
C++
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// Copyright (c) 2017 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 <base58.h>
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#include <keystore.h>
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#include <pubkey.h>
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#include <rpc/protocol.h>
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#include <rpc/util.h>
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#include <tinyformat.h>
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#include <utilstrencodings.h>
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// Converts a hex string to a public key if possible
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CPubKey HexToPubKey(const std::string& hex_in)
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{
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if (!IsHex(hex_in)) {
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid public key: " + hex_in);
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}
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CPubKey vchPubKey(ParseHex(hex_in));
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if (!vchPubKey.IsFullyValid()) {
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid public key: " + hex_in);
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}
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return vchPubKey;
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}
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// Retrieves a public key for an address from the given CKeyStore
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CPubKey AddrToPubKey(CKeyStore* const keystore, const std::string& addr_in)
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{
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CTxDestination dest = DecodeDestination(addr_in);
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if (!IsValidDestination(dest)) {
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address: " + addr_in);
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}
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CKeyID key = GetKeyForDestination(*keystore, dest);
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if (key.IsNull()) {
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("%s does not refer to a key", addr_in));
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}
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CPubKey vchPubKey;
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if (!keystore->GetPubKey(key, vchPubKey)) {
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("no full public key for address %s", addr_in));
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}
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if (!vchPubKey.IsFullyValid()) {
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throw JSONRPCError(RPC_INTERNAL_ERROR, "Wallet contains an invalid public key");
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}
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return vchPubKey;
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}
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// Creates a multisig redeemscript from a given list of public keys and number required.
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CScript CreateMultisigRedeemscript(const int required, const std::vector<CPubKey>& pubkeys)
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{
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// Gather public keys
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if (required < 1) {
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throw JSONRPCError(RPC_INVALID_PARAMETER, "a multisignature address must require at least one key to redeem");
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}
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if ((int)pubkeys.size() < required) {
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throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("not enough keys supplied (got %u keys, but need at least %d to redeem)", pubkeys.size(), required));
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}
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if (pubkeys.size() > 16) {
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throw JSONRPCError(RPC_INVALID_PARAMETER, "Number of keys involved in the multisignature address creation > 16\nReduce the number");
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}
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CScript result = GetScriptForMultisig(required, pubkeys);
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if (result.size() > MAX_SCRIPT_ELEMENT_SIZE) {
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throw JSONRPCError(RPC_INVALID_PARAMETER, (strprintf("redeemScript exceeds size limit: %d > %d", result.size(), MAX_SCRIPT_ELEMENT_SIZE)));
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}
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return result;
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}
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