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