You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.1 KiB
42 lines
1.1 KiB
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
|
|
|