57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
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Bitcoin.ECKey = (function () {
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var ECDSA = Bitcoin.ECDSA;
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var ecparams = getSECCurveByName("secp256k1");
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var rng = new SecureRandom();
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var ECKey = function (input) {
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if (!input) {
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// Generate new key
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var n = ecparams.getN();
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this.priv = ECDSA.getBigRandom(n);
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} else if (input instanceof BigInteger) {
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// Input is a private key value
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this.priv = input;
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} else if (Bitcoin.Util.isArray(input)) {
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this.priv = new BigInteger(input);
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} else if ("string" == typeof input) {
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this.priv = new BigInteger(Crypto.util.base64ToBytes(input));
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}
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};
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ECKey.prototype.getPub = function () {
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if (this.pub) return this.pub;
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return this.pub = ecparams.getG().multiply(this.priv).getEncoded();
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};
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ECKey.prototype.getPubKeyHash = function () {
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if (this.pubKeyHash) return this.pubKeyHash;
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return this.pubKeyHash = Bitcoin.Util.sha256ripe160(this.getPub());
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};
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ECKey.prototype.getBitcoinAddress = function () {
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var hash = this.getPubKeyHash();
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var addr = new Bitcoin.Address(hash);
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return addr;
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};
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ECKey.prototype.toString = function (format) {
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if (format === "base64") {
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return Crypto.util.bytesToBase64(this.priv.toByteArrayUnsigned());
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} else {
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return Crypto.util.bytesToHex(this.priv.toByteArrayUnsigned());
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}
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};
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ECKey.prototype.sign = function (hash) {
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return ECDSA.sign(hash, this.priv);
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};
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ECKey.prototype.verify = function (hash, sig) {
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return ECDSA.verify(hash, sig, this.getPub());
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};
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return ECKey;
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})();
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