js-crypto-key-utils
Version:
Universal Module for Cryptographic Key Utilities in JavaScript, including PEM-JWK converters
153 lines • 8.61 kB
JavaScript
;
/**
* converter.js
*/
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o["default"] = v;
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var __importStar = (this && this.__importStar) || function (mod) {
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Object.defineProperty(exports, "__esModule", { value: true });
exports.toJwkFrom = exports.fromJwkTo = void 0;
var asn1enc = __importStar(require("./asn1enc"));
var octenc = __importStar(require("./octenc"));
// ASN.1 in RFC5280 (SPKI) and RFC5208 (PKCS8) -> RSA and EC, encode='asn', format='pem' or 'der'
// -> SPKI (in X.509): RFC5280 for public key, PKCS8: RFC5208 for private key
// Octet Form in ANSI X9.63 -> EC, encode='oct', format='string' or 'binary', compact=true or false
// -> Standards for Efficient Cryptography Group (SECG), "SEC1: Elliptic Curve Cryptography", Version 1.0, September 2000.
/**
* Convert JWK to ASN.1 (for RSA and EC) and Octet (for EC) encoded keys.
* @param {'pem'|'der'|'oct'} output - 'pem', 'der', or 'oct' (only EC JWK), output format.
* @param {JsonWebKey} jwkey - A JWK to be encoded.
* @param {KeyExportOptions} options - Options to export key including encryption options.
* For EC JWK : options.compact = true or false
* For EC JWK with output = 'oct' : options.format = 'binary' or 'string'
* For both: outputPublic (optional) : boolean. derived key type. from private key, public key can be derived when true.
* @return {PEM|DER|OctetEC} - Output key object.
*/
var fromJwkTo = function (output, jwkey, options) {
if (output === void 0) { output = 'pem'; }
if (options === void 0) { options = {}; }
return __awaiter(void 0, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
// assertion
if (jwkey.kty !== 'EC' && jwkey.kty !== 'RSA')
throw new Error('UnsupportedKeyType');
// default values
if (jwkey.kty === 'EC' && typeof options.compact === 'undefined')
options.compact = false;
if (output === 'oct' && options.output !== 'string')
options.output = 'binary';
if (typeof options.encryptParams === 'undefined')
options.encryptParams = { passphrase: '' };
if ((output === 'der' || output === 'pem') && typeof options.encryptParams.passphrase === 'undefined')
options.encryptParams.passphrase = '';
if (!(output === 'der' || output === 'pem')) return [3 /*break*/, 2];
return [4 /*yield*/, asn1enc.fromJwk(jwkey, output, { outputPublic: options.outputPublic, compact: options.compact, encOptions: options.encryptParams })];
case 1: return [2 /*return*/, _a.sent()];
case 2:
if (output === 'oct' && jwkey.kty === 'EC') {
return [2 /*return*/, octenc.fromJwk(jwkey, { outputPublic: options.outputPublic, outputFormat: options.output, compact: options.compact })];
}
else
throw new Error('UnsupportedConversion');
_a.label = 3;
case 3: return [2 /*return*/];
}
});
});
};
exports.fromJwkTo = fromJwkTo;
/**
* Convert ASN.1 encoded (for RSA and EC) or octet formed (for EC) keys to JWK.
* @param {'pem'|'der'|'oct'} input - 'pem', 'der' or 'oct', input key format.
* @param {PEM|DER|OctetEC} key - A key object to be encoded.
* @param {JwkExportOptionsInternal} [options={}] - options to export JWK keys.
* @return {JsonWebKey} - Obtained key object in JWK format.
* @throws {Error} - Throws if InvalidInputForm, InappropriateOptions, outputPublicMustBeBoolean or UnsupportedConversion
*/
var toJwkFrom = function (input, key, options) {
if (options === void 0) { options = {}; }
return __awaiter(void 0, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
// assertion
if (input === 'oct' && !options.namedCurve)
throw new Error('InappropriateOptions');
// default values
if ((input === 'der' || input === 'pem') && typeof options.passphrase === 'undefined')
options.passphrase = '';
if (!(input === 'der' || input === 'pem')) return [3 /*break*/, 2];
return [4 /*yield*/, asn1enc.toJwk(key, input, { outputPublic: options.outputPublic, passphrase: options.passphrase })];
case 1: return [2 /*return*/, _a.sent()];
case 2:
if (input === 'oct') {
return [2 /*return*/, octenc.toJwk(key, options.namedCurve, { outputPublic: options.outputPublic })];
}
else
throw new Error('UnsupportedConversion');
_a.label = 3;
case 3: return [2 /*return*/];
}
});
});
};
exports.toJwkFrom = toJwkFrom;
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