Marc Mintel
5397309103
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62 lines
2.0 KiB
Plaintext
62 lines
2.0 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.weakMap = void 0;
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const node_crypto_1 = require("node:crypto");
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const errors_js_1 = require("../util/errors.js");
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const webcrypto_js_1 = require("./webcrypto.js");
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const is_key_object_js_1 = require("./is_key_object.js");
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const invalid_key_input_js_1 = require("../lib/invalid_key_input.js");
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const is_key_like_js_1 = require("./is_key_like.js");
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const is_jwk_js_1 = require("../lib/is_jwk.js");
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exports.weakMap = new WeakMap();
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const namedCurveToJOSE = (namedCurve) => {
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switch (namedCurve) {
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case 'prime256v1':
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return 'P-256';
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case 'secp384r1':
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return 'P-384';
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case 'secp521r1':
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return 'P-521';
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case 'secp256k1':
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return 'secp256k1';
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default:
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throw new errors_js_1.JOSENotSupported('Unsupported key curve for this operation');
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}
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};
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const getNamedCurve = (kee, raw) => {
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let key;
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if ((0, webcrypto_js_1.isCryptoKey)(kee)) {
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key = node_crypto_1.KeyObject.from(kee);
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}
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else if ((0, is_key_object_js_1.default)(kee)) {
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key = kee;
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}
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else if ((0, is_jwk_js_1.isJWK)(kee)) {
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return kee.crv;
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}
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else {
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throw new TypeError((0, invalid_key_input_js_1.default)(kee, ...is_key_like_js_1.types));
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}
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if (key.type === 'secret') {
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throw new TypeError('only "private" or "public" type keys can be used for this operation');
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}
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switch (key.asymmetricKeyType) {
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case 'ed25519':
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case 'ed448':
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return `Ed${key.asymmetricKeyType.slice(2)}`;
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case 'x25519':
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case 'x448':
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return `X${key.asymmetricKeyType.slice(1)}`;
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case 'ec': {
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const namedCurve = key.asymmetricKeyDetails.namedCurve;
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if (raw) {
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return namedCurve;
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}
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return namedCurveToJOSE(namedCurve);
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}
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default:
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throw new TypeError('Invalid asymmetric key type for this operation');
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}
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};
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exports.default = getNamedCurve;
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