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- var generatePrime = require('./lib/generatePrime')
- var primes = require('./lib/primes.json')
-
- var DH = require('./lib/dh')
-
- function getDiffieHellman (mod) {
- var prime = new Buffer(primes[mod].prime, 'hex')
- var gen = new Buffer(primes[mod].gen, 'hex')
-
- return new DH(prime, gen)
- }
-
- var ENCODINGS = {
- 'binary': true, 'hex': true, 'base64': true
- }
-
- function createDiffieHellman (prime, enc, generator, genc) {
- if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) {
- return createDiffieHellman(prime, 'binary', enc, generator)
- }
-
- enc = enc || 'binary'
- genc = genc || 'binary'
- generator = generator || new Buffer([2])
-
- if (!Buffer.isBuffer(generator)) {
- generator = new Buffer(generator, genc)
- }
-
- if (typeof prime === 'number') {
- return new DH(generatePrime(prime, generator), generator, true)
- }
-
- if (!Buffer.isBuffer(prime)) {
- prime = new Buffer(prime, enc)
- }
-
- return new DH(prime, generator, true)
- }
-
- exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman
- exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman
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