@roochnetwork/rooch-sdk
Version:
80 lines (79 loc) • 2.4 kB
JavaScript
import { secp256k1, schnorr } from "@noble/curves/secp256k1";
import { AddressView } from "../../address/index.js";
import { PublicKey, SIGNATURE_SCHEME_TO_FLAG } from "../../crypto/index.js";
import { fromB64, sha256, toHEX } from "../../utils/index.js";
const SCHNORR_PUBLIC_KEY_SIZE = 32;
const ECDSA_PUBLIC_KEY_SIZE = 33;
class Secp256k1PublicKey extends PublicKey {
/**
* Create a new Secp256k1PublicKey object
* @param value secp256k1 public key as buffer or base-64 encoded string
*/
constructor(value) {
super();
if (typeof value === "string") {
this.data = fromB64(value);
} else if (value instanceof Uint8Array) {
this.data = value;
} else {
this.data = Uint8Array.from(value);
}
if (this.data.length !== SCHNORR_PUBLIC_KEY_SIZE && this.data.length !== ECDSA_PUBLIC_KEY_SIZE) {
throw new Error(
`Invalid public key input. Expected ${SCHNORR_PUBLIC_KEY_SIZE} or ${ECDSA_PUBLIC_KEY_SIZE} bytes, got ${this.data.length}`
);
}
}
/**
* Checks if two Secp256k1 public keys are equal
*/
equals(publicKey) {
return super.equals(publicKey);
}
/**
* Return the byte array representation of the Secp256k1 public key
*/
toBytes() {
return this.data;
}
toString() {
return toHEX(this.data);
}
/**
* Return the Bitcoin address associated with this Secp256k1 public key
*/
toAddress() {
return new AddressView(this.data);
}
toAddressWith(network) {
return new AddressView(this.data, network);
}
/**
* Return the Rooch address associated with this Secp256k1 public key
*/
flag() {
return SIGNATURE_SCHEME_TO_FLAG["Secp256k1"];
}
/**
* Verifies that the ecdsa signature is valid for the provided sha256 hashed message with 33 bytes public key
*/
async verify(message, signature) {
return secp256k1.verify(
secp256k1.Signature.fromCompact(signature),
sha256(message),
this.toBytes()
);
}
/**
* Verifies that the schnorr signature is valid for the provided message with 32 bytes public key
*/
async verify_schnorr(message, signature) {
return schnorr.verify(signature, message, this.toBytes());
}
}
Secp256k1PublicKey.SCHNORR_PUBKEY_SIZE = SCHNORR_PUBLIC_KEY_SIZE;
Secp256k1PublicKey.ECDSA_PUBKEY_SIZE = ECDSA_PUBLIC_KEY_SIZE;
export {
Secp256k1PublicKey
};
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