54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
|
import { getContext } from "./context.js";
|
||
|
|
import { bytesToHex, hexToBytes, isZeroUint8Array } from "../helpers/index.js";
|
||
|
|
import { PointFormat } from "../types.js";
|
||
|
|
import { EmptyAggregateError, InvalidLengthError, ZeroPublicKeyError } from "../errors.js";
|
||
|
|
import { PUBLIC_KEY_LENGTH_COMPRESSED, PUBLIC_KEY_LENGTH_UNCOMPRESSED } from "../constants.js";
|
||
|
|
export class PublicKey {
|
||
|
|
constructor(value) {
|
||
|
|
if (value.isZero()) {
|
||
|
|
throw new ZeroPublicKeyError();
|
||
|
|
}
|
||
|
|
this.value = value;
|
||
|
|
}
|
||
|
|
static fromBytes(bytes) {
|
||
|
|
const context = getContext();
|
||
|
|
const publicKey = new context.PublicKey();
|
||
|
|
if (!isZeroUint8Array(bytes)) {
|
||
|
|
if (bytes.length === PUBLIC_KEY_LENGTH_COMPRESSED) {
|
||
|
|
publicKey.deserialize(bytes);
|
||
|
|
}
|
||
|
|
else if (bytes.length === PUBLIC_KEY_LENGTH_UNCOMPRESSED) {
|
||
|
|
publicKey.deserializeUncompressed(bytes);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
throw new InvalidLengthError("PublicKey", bytes.length);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return new PublicKey(publicKey);
|
||
|
|
}
|
||
|
|
static fromHex(hex) {
|
||
|
|
return this.fromBytes(hexToBytes(hex));
|
||
|
|
}
|
||
|
|
static aggregate(publicKeys) {
|
||
|
|
if (publicKeys.length === 0) {
|
||
|
|
throw new EmptyAggregateError();
|
||
|
|
}
|
||
|
|
const agg = new PublicKey(publicKeys[0].value.clone());
|
||
|
|
for (const pk of publicKeys.slice(1)) {
|
||
|
|
agg.value.add(pk.value);
|
||
|
|
}
|
||
|
|
return agg;
|
||
|
|
}
|
||
|
|
toBytes(format) {
|
||
|
|
if (format === PointFormat.uncompressed) {
|
||
|
|
return this.value.serializeUncompressed();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return this.value.serialize();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
toHex(format) {
|
||
|
|
return bytesToHex(this.toBytes(format));
|
||
|
|
}
|
||
|
|
}
|