@firmachain/firma-js
Version:
The Official FirmaChain Javascript SDK written in Typescript
47 lines (46 loc) • 2.23 kB
JavaScript
;
// See https://github.com/tendermint/tendermint/blob/f2ada0a604b4c0763bda2f64fac53d506d3beca7/docs/spec/blockchain/encoding.md#public-key-cryptography
Object.defineProperty(exports, "__esModule", { value: true });
exports.pubkeyToAddress = exports.pubkeyToRawAddress = exports.rawSecp256k1PubkeyToRawAddress = exports.rawEd25519PubkeyToRawAddress = void 0;
var crypto_1 = require("@cosmjs/crypto");
var encoding_1 = require("@cosmjs/encoding");
var encoding_2 = require("./encoding");
var pubkeys_1 = require("./pubkeys");
function rawEd25519PubkeyToRawAddress(pubkeyData) {
if (pubkeyData.length !== 32) {
throw new Error("Invalid Ed25519 pubkey length: " + pubkeyData.length);
}
return crypto_1.sha256(pubkeyData).slice(0, 20);
}
exports.rawEd25519PubkeyToRawAddress = rawEd25519PubkeyToRawAddress;
function rawSecp256k1PubkeyToRawAddress(pubkeyData) {
if (pubkeyData.length !== 33) {
throw new Error("Invalid Secp256k1 pubkey length (compressed): " + pubkeyData.length);
}
return crypto_1.ripemd160(crypto_1.sha256(pubkeyData));
}
exports.rawSecp256k1PubkeyToRawAddress = rawSecp256k1PubkeyToRawAddress;
// For secp256k1 this assumes we already have a compressed pubkey.
function pubkeyToRawAddress(pubkey) {
if (pubkeys_1.isSecp256k1Pubkey(pubkey)) {
var pubkeyData = encoding_1.fromBase64(pubkey.value);
return rawSecp256k1PubkeyToRawAddress(pubkeyData);
}
else if (pubkeys_1.isEd25519Pubkey(pubkey)) {
var pubkeyData = encoding_1.fromBase64(pubkey.value);
return rawEd25519PubkeyToRawAddress(pubkeyData);
}
else if (pubkeys_1.isMultisigThresholdPubkey(pubkey)) {
// https://github.com/tendermint/tendermint/blob/38b401657e4ad7a7eeb3c30a3cbf512037df3740/crypto/multisig/threshold_pubkey.go#L71-L74
var pubkeyData = encoding_2.encodeAminoPubkey(pubkey);
return crypto_1.sha256(pubkeyData).slice(0, 20);
}
else {
throw new Error("Unsupported public key type");
}
}
exports.pubkeyToRawAddress = pubkeyToRawAddress;
function pubkeyToAddress(pubkey, prefix) {
return encoding_1.Bech32.encode(prefix, pubkeyToRawAddress(pubkey));
}
exports.pubkeyToAddress = pubkeyToAddress;