Yigid BALABAN
ca521e033f
+ key-derivation/getPairFromPrivate() M key-derivation/generateKeypair to use class Key + class Key for interop between different zkl modules
63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
/**
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* Represents a cryptographic key.
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*/
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export class Key {
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#key = new Uint8Array(1);
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/**
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* Creates a new Key instance.
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*
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* @param {string} type - The type of key, either "public" or "private".
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* @param {Object} details - Details about the key.
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* @param {Uint8Array} [details.fromByteArray] - The key as a byte array.
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* @param {string} [details.fromHexString] - The key as a hexadecimal string.
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* @throws {TypeError} If the type is not "public" or "private", or if details are provided but do not contain a valid key representation.
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*/
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constructor(type, details) {
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if (type.toLowerCase() !== "public" && type.toLowerCase() !== "private")
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throw new TypeError(
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"Required property 'type' may only take 'public' or 'private' as values"
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);
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else this.keyType = type;
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if (!details || (!details.fromByteArray && !details.fromHexString))
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throw new TypeError(
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"Missing required property 'fromByteArray' or 'fromHexString' in parameter 'details'"
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);
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if (details.fromByteArray && details.fromHexString)
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console.warn(
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"Both 'fromByteArray' and 'fromHexString' present. Value of 'fromHexString' will be used."
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);
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if (details.fromByteArray) {
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this.#key = details.fromByteArray;
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} else if (details.fromHexString) {
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this.#key = Uint8Array.from(
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details.fromHexString.match(/.{1,2}/g).map((byte) => parseInt(byte, 16))
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);
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}
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}
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/**
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* Gets the key as a hexadecimal string.
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*
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* @returns {string} The key as a hexadecimal string.
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*/
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get asHexString() {
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return this.#key.reduce(
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(str, byte) => str + byte.toString(16).padStart(2, "0"),
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""
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);
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}
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/**
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* Gets the key as a byte array.
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*
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* @returns {Uint8Array} The key as a byte array.
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*/
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get asByteArray() {
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return this.#key;
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}
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}
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