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32 lines
1.0 KiB
32 lines
1.0 KiB
2 years ago
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import generatePrime from "./lib/generatePrime";
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import * as primes from "./lib/primes.json";
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import DH from "./lib/dh";
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function getDiffieHellman(mod) {
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var prime = new Buffer(primes[mod].prime, 'hex');
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var gen = new Buffer(primes[mod].gen, 'hex');
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return new DH(prime, gen);
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}
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var ENCODINGS = {
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'binary': true, 'hex': true, 'base64': true
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};
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function createDiffieHellman(prime, enc, generator, genc) {
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if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) {
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return createDiffieHellman(prime, 'binary', enc, generator);
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}
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enc = enc || 'binary';
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genc = genc || 'binary';
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generator = generator || new Buffer([2]);
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if (!Buffer.isBuffer(generator)) {
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generator = new Buffer(generator, genc);
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}
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if (typeof prime === 'number') {
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return new DH(generatePrime(prime, generator), generator, true);
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}
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if (!Buffer.isBuffer(prime)) {
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prime = new Buffer(prime, enc);
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}
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return new DH(prime, generator, true);
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}
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export { getDiffieHellman };
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export { createDiffieHellman as DiffieHellman };
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