85 lines
3.1 KiB
JavaScript
Executable file
85 lines
3.1 KiB
JavaScript
Executable file
"use strict";
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.Key = void 0;
|
|
const util_1 = __importDefault(require("util"));
|
|
const error_1 = require("./error");
|
|
const utils_1 = require("./utils");
|
|
const key_1 = require("./utils/key");
|
|
// A container class representing the public portion of a Key.
|
|
class Key {
|
|
constructor(options) {
|
|
const { keyID, keyType, scheme, keyVal, unrecognizedFields } = options;
|
|
this.keyID = keyID;
|
|
this.keyType = keyType;
|
|
this.scheme = scheme;
|
|
this.keyVal = keyVal;
|
|
this.unrecognizedFields = unrecognizedFields || {};
|
|
}
|
|
// Verifies the that the metadata.signatures contains a signature made with
|
|
// this key and is correctly signed.
|
|
verifySignature(metadata) {
|
|
const signature = metadata.signatures[this.keyID];
|
|
if (!signature)
|
|
throw new error_1.UnsignedMetadataError('no signature for key found in metadata');
|
|
if (!this.keyVal.public)
|
|
throw new error_1.UnsignedMetadataError('no public key found');
|
|
const publicKey = (0, key_1.getPublicKey)({
|
|
keyType: this.keyType,
|
|
scheme: this.scheme,
|
|
keyVal: this.keyVal.public,
|
|
});
|
|
const signedData = metadata.signed.toJSON();
|
|
try {
|
|
if (!utils_1.crypto.verifySignature(signedData, publicKey, signature.sig)) {
|
|
throw new error_1.UnsignedMetadataError(`failed to verify ${this.keyID} signature`);
|
|
}
|
|
}
|
|
catch (error) {
|
|
if (error instanceof error_1.UnsignedMetadataError) {
|
|
throw error;
|
|
}
|
|
throw new error_1.UnsignedMetadataError(`failed to verify ${this.keyID} signature`);
|
|
}
|
|
}
|
|
equals(other) {
|
|
if (!(other instanceof Key)) {
|
|
return false;
|
|
}
|
|
return (this.keyID === other.keyID &&
|
|
this.keyType === other.keyType &&
|
|
this.scheme === other.scheme &&
|
|
util_1.default.isDeepStrictEqual(this.keyVal, other.keyVal) &&
|
|
util_1.default.isDeepStrictEqual(this.unrecognizedFields, other.unrecognizedFields));
|
|
}
|
|
toJSON() {
|
|
return {
|
|
keytype: this.keyType,
|
|
scheme: this.scheme,
|
|
keyval: this.keyVal,
|
|
...this.unrecognizedFields,
|
|
};
|
|
}
|
|
static fromJSON(keyID, data) {
|
|
const { keytype, scheme, keyval, ...rest } = data;
|
|
if (typeof keytype !== 'string') {
|
|
throw new TypeError('keytype must be a string');
|
|
}
|
|
if (typeof scheme !== 'string') {
|
|
throw new TypeError('scheme must be a string');
|
|
}
|
|
if (!utils_1.guard.isStringRecord(keyval)) {
|
|
throw new TypeError('keyval must be a string record');
|
|
}
|
|
return new Key({
|
|
keyID,
|
|
keyType: keytype,
|
|
scheme,
|
|
keyVal: keyval,
|
|
unrecognizedFields: rest,
|
|
});
|
|
}
|
|
}
|
|
exports.Key = Key;
|