/var/www/greso.tech/server/nsm/node_modules/jose/dist/node/cjs/runtime
Edit: /var/www/greso.tech/server/nsm/node_modules/jose/dist/node/cjs/runtime/get_named_curve.js (3618B)
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.setCurve = exports.weakMap = void 0;
const buffer_1 = require("buffer");
const crypto_1 = require("crypto");
const errors_js_1 = require("../util/errors.js");
const webcrypto_js_1 = require("./webcrypto.js");
const is_key_object_js_1 = require("./is_key_object.js");
const invalid_key_input_js_1 = require("../lib/invalid_key_input.js");
const is_key_like_js_1 = require("./is_key_like.js");
const p256 = buffer_1.Buffer.from([42, 134, 72, 206, 61, 3, 1, 7]);
const p384 = buffer_1.Buffer.from([43, 129, 4, 0, 34]);
const p521 = buffer_1.Buffer.from([43, 129, 4, 0, 35]);
const secp256k1 = buffer_1.Buffer.from([43, 129, 4, 0, 10]);
exports.weakMap = new WeakMap();
const namedCurveToJOSE = (namedCurve) => {
switch (namedCurve) {
case 'prime256v1':
return 'P-256';
case 'secp384r1':
return 'P-384';
case 'secp521r1':
return 'P-521';
case 'secp256k1':
return 'secp256k1';
default:
throw new errors_js_1.JOSENotSupported('Unsupported key curve for this operation');
}
};
const getNamedCurve = (kee, raw) => {
var _a;
let key;
if ((0, webcrypto_js_1.isCryptoKey)(kee)) {
key = crypto_1.KeyObject.from(kee);
}
else if ((0, is_key_object_js_1.default)(kee)) {
key = kee;
}
else {
throw new TypeError((0, invalid_key_input_js_1.default)(kee, ...is_key_like_js_1.types));
}
if (key.type === 'secret') {
throw new TypeError('only "private" or "public" type keys can be used for this operation');
}
switch (key.asymmetricKeyType) {
case 'ed25519':
case 'ed448':
return `Ed${key.asymmetricKeyType.slice(2)}`;
case 'x25519':
case 'x448':
return `X${key.asymmetricKeyType.slice(1)}`;
case 'ec': {
if (exports.weakMap.has(key)) {
return exports.weakMap.get(key);
}
let namedCurve = (_a = key.asymmetricKeyDetails) === null || _a === void 0 ? void 0 : _a.namedCurve;
if (!namedCurve && key.type === 'private') {
namedCurve = getNamedCurve((0, crypto_1.createPublicKey)(key), true);
}
else if (!namedCurve) {
const buf = key.export({ format: 'der', type: 'spki' });
const i = buf[1] < 128 ? 14 : 15;
const len = buf[i];
const curveOid = buf.slice(i + 1, i + 1 + len);
if (curveOid.equals(p256)) {
namedCurve = 'prime256v1';
}
else if (curveOid.equals(p384)) {
namedCurve = 'secp384r1';
}
else if (curveOid.equals(p521)) {
namedCurve = 'secp521r1';
}
else if (curveOid.equals(secp256k1)) {
namedCurve = 'secp256k1';
}
else {
throw new errors_js_1.JOSENotSupported('Unsupported key curve for this operation');
}
}
if (raw)
return namedCurve;
const curve = namedCurveToJOSE(namedCurve);
exports.weakMap.set(key, curve);
return curve;
}
default:
throw new TypeError('Invalid asymmetric key type for this operation');
}
};
function setCurve(keyObject, curve) {
exports.weakMap.set(keyObject, curve);
}
exports.setCurve = setCurve;
exports.default = getNamedCurve;