70 lines
1.8 KiB
JavaScript
70 lines
1.8 KiB
JavaScript
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'use strict';
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var test = require('tape');
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var cryptoB = require('../../');
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var crypto = require('crypto');
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var satisfies = require('semver').satisfies;
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test('diffie-hellman mod groups', function (t) {
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[
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'modp1',
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'modp2',
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'modp5',
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'modp14',
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'modp15',
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'modp16'
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].forEach(function (mod) {
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t.test(mod, function (st) {
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st.plan(3);
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var dh1 = cryptoB.getDiffieHellman(mod);
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var p1 = dh1.getPrime().toString('hex');
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dh1.generateKeys();
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var dh2 = crypto.getDiffieHellman(mod);
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var p2 = dh2.getPrime().toString('hex');
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dh2.generateKeys();
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st.equals(p1, p2, 'equal primes');
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var pubk1 = dh1.getPublicKey();
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var pubk2 = dh2.getPublicKey();
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st.notEquals(pubk1, pubk2, 'diff public keys');
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var pub1 = dh1.computeSecret(pubk2).toString('hex');
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var pub2 = dh2.computeSecret(pubk1).toString('hex');
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st.equals(pub1, pub2, 'equal secrets');
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});
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});
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});
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test('diffie-hellman key lengths', function (t) {
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[
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64,
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65,
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192,
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512,
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1024
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].forEach(function (len) {
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var modulusTooSmall = satisfies(process.version, '>= 17') && len < 512;
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t.test(String(len), { skip: modulusTooSmall && 'node 17+ requires a length >= 512' }, function (st) {
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var dh2 = cryptoB.createDiffieHellman(len);
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var prime2 = dh2.getPrime();
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var p2 = prime2.toString('hex');
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var dh1 = crypto.createDiffieHellman(prime2);
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var p1 = dh1.getPrime().toString('hex');
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dh1.generateKeys();
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dh2.generateKeys();
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st.equals(p1, p2, 'equal primes');
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var pubk1 = dh1.getPublicKey();
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var pubk2 = dh2.getPublicKey();
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st.notEquals(pubk1, pubk2, 'diff public keys');
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var pub1 = dh1.computeSecret(pubk2).toString('hex');
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var pub2 = dh2.computeSecret(dh1.getPublicKey()).toString('hex');
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st.equals(pub1, pub2, 'equal secrets');
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st.end();
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});
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});
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});
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