ox
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.noble = void 0;
exports.createKeyPair = createKeyPair;
exports.getPublicKey = getPublicKey;
exports.getSharedSecret = getSharedSecret;
exports.randomPrivateKey = randomPrivateKey;
exports.recoverPublicKey = recoverPublicKey;
exports.sign = sign;
exports.verify = verify;
const p256_1 = require("@noble/curves/p256");
const Bytes = require("./Bytes.js");
const Hex = require("./Hex.js");
const Entropy = require("./internal/entropy.js");
const PublicKey = require("./PublicKey.js");
exports.noble = p256_1.secp256r1;
function createKeyPair(options = {}) {
const { as = 'Hex' } = options;
const privateKey = randomPrivateKey({ as });
const publicKey = getPublicKey({ privateKey });
return {
privateKey: privateKey,
publicKey,
};
}
function getPublicKey(options) {
const { privateKey } = options;
const point = p256_1.secp256r1.ProjectivePoint.fromPrivateKey(typeof privateKey === 'string'
? privateKey.slice(2)
: Hex.fromBytes(privateKey).slice(2));
return PublicKey.from(point);
}
function getSharedSecret(options) {
const { as = 'Hex', privateKey, publicKey } = options;
const point = p256_1.secp256r1.ProjectivePoint.fromHex(PublicKey.toHex(publicKey).slice(2));
const privateKeyHex = typeof privateKey === 'string'
? privateKey.slice(2)
: Hex.fromBytes(privateKey).slice(2);
const sharedPoint = point.multiply(p256_1.secp256r1.utils.normPrivateKeyToScalar(privateKeyHex));
const sharedSecret = sharedPoint.toRawBytes(true);
if (as === 'Hex')
return Hex.fromBytes(sharedSecret);
return sharedSecret;
}
function randomPrivateKey(options = {}) {
const { as = 'Hex' } = options;
const bytes = p256_1.secp256r1.utils.randomPrivateKey();
if (as === 'Hex')
return Hex.fromBytes(bytes);
return bytes;
}
function recoverPublicKey(options) {
const { payload, signature } = options;
const { r, s, yParity } = signature;
const signature_ = new p256_1.secp256r1.Signature(BigInt(r), BigInt(s)).addRecoveryBit(yParity);
const payload_ = payload instanceof Uint8Array ? Hex.fromBytes(payload) : payload;
const point = signature_.recoverPublicKey(payload_.substring(2));
return PublicKey.from(point);
}
function sign(options) {
const { extraEntropy = Entropy.extraEntropy, hash, payload, privateKey, } = options;
const { r, s, recovery } = p256_1.secp256r1.sign(payload instanceof Uint8Array ? payload : Bytes.fromHex(payload), privateKey instanceof Uint8Array ? privateKey : Bytes.fromHex(privateKey), {
extraEntropy: typeof extraEntropy === 'boolean'
? extraEntropy
: Hex.from(extraEntropy).slice(2),
lowS: true,
...(hash ? { prehash: true } : {}),
});
return {
r,
s,
yParity: recovery,
};
}
function verify(options) {
const { hash, payload, publicKey, signature } = options;
return p256_1.secp256r1.verify(signature, payload instanceof Uint8Array ? payload : Bytes.fromHex(payload), PublicKey.toHex(publicKey).substring(2), ...(hash ? [{ prehash: true, lowS: true }] : []));
}
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