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/var/www/qr4y.gr/server/delivery/node_modules/node-forge/lib/

/var/www/qr4y.gr/server/delivery/node_modules/node-forge/lib

Name	Size	Mode	Actions
aes.js	39025	0644	edit dl rm
aesCipherSuites.js	9112	0644	edit dl rm
asn1-validator.js	2295	0644	edit dl rm
asn1.js	42831	0644	edit dl rm
baseN.js	5068	0644	edit dl rm
cipher.js	6668	0644	edit dl rm
cipherModes.js	28917	0644	edit dl rm
des.js	20445	0644	edit dl rm
ed25519.js	24941	0644	edit dl rm
forge.js	200	0644	edit dl rm
form.js	3880	0644	edit dl rm
hmac.js	3833	0644	edit dl rm
http.js	39070	0644	edit dl rm
index.all.js	366	0644	edit dl rm
index.js	640	0644	edit dl rm
jsbn.js	35188	0644	edit dl rm
kem.js	5217	0644	edit dl rm
log.js	9264	0644	edit dl rm
md.all.js	251	0644	edit dl rm
md.js	253	0644	edit dl rm
md5.js	7983	0644	edit dl rm
mgf.js	274	0644	edit dl rm
mgf1.js	1645	0644	edit dl rm
oids.js	6844	0644	edit dl rm
pbe.js	30999	0644	edit dl rm
pbkdf2.js	5809	0644	edit dl rm
pem.js	6693	0644	edit dl rm
pkcs1.js	8375	0644	edit dl rm
pkcs7.js	39869	0644	edit dl rm
pkcs7asn1.js	11484	0644	edit dl rm
pkcs12.js	33347	0644	edit dl rm
pki.js	2651	0644	edit dl rm
prime.js	8776	0644	edit dl rm
prime.worker.js	4804	0644	edit dl rm
prng.js	12326	0644	edit dl rm
pss.js	7854	0644	edit dl rm
random.js	5438	0644	edit dl rm
rc2.js	11949	0644	edit dl rm
rsa.js	60058	0644	edit dl rm
sha1.js	9089	0644	edit dl rm
sha256.js	9574	0644	edit dl rm
sha512.js	17133	0644	edit dl rm
socket.js	8329	0644	edit dl rm
ssh.js	7163	0644	edit dl rm
tls.js	132973	0644	edit dl rm
tlssocket.js	6967	0644	edit dl rm
util.js	69858	0644	edit dl rm
x509.js	101796	0644	edit dl rm
xhr.js	22116	0644	edit dl rm

Edit: /var/www/qr4y.gr/server/delivery/node_modules/node-forge/lib/prng.js (12326B)

/**
 * A javascript implementation of a cryptographically-secure
 * Pseudo Random Number Generator (PRNG). The Fortuna algorithm is followed
 * here though the use of SHA-256 is not enforced; when generating an
 * a PRNG context, the hashing algorithm and block cipher used for
 * the generator are specified via a plugin.
 *
 * @author Dave Longley
 *
 * Copyright (c) 2010-2014 Digital Bazaar, Inc.
 */
var forge = require('./forge');
require('./util');

var _crypto = null;
if(forge.util.isNodejs && !forge.options.usePureJavaScript &&
  !process.versions['node-webkit']) {
  _crypto = require('crypto');
}

/* PRNG API */
var prng = module.exports = forge.prng = forge.prng || {};

/**
 * Creates a new PRNG context.
 *
 * A PRNG plugin must be passed in that will provide:
 *
 * 1. A function that initializes the key and seed of a PRNG context. It
 *   will be given a 16 byte key and a 16 byte seed. Any key expansion
 *   or transformation of the seed from a byte string into an array of
 *   integers (or similar) should be performed.
 * 2. The cryptographic function used by the generator. It takes a key and
 *   a seed.
 * 3. A seed increment function. It takes the seed and returns seed + 1.
 * 4. An api to create a message digest.
 *
 * For an example, see random.js.
 *
 * @param plugin the PRNG plugin to use.
 */
prng.create = function(plugin) {
  var ctx = {
    plugin: plugin,
    key: null,
    seed: null,
    time: null,
    // number of reseeds so far
    reseeds: 0,
    // amount of data generated so far
    generated: 0,
    // no initial key bytes
    keyBytes: ''
  };

// create 32 entropy pools (each is a message digest)
  var md = plugin.md;
  var pools = new Array(32);
  for(var i = 0; i < 32; ++i) {
    pools[i] = md.create();
  }
  ctx.pools = pools;

// entropy pools are written to cyclically, starting at index 0
  ctx.pool = 0;

/**
   * Generates random bytes. The bytes may be generated synchronously or
   * asynchronously. Web workers must use the asynchronous interface or
   * else the behavior is undefined.
   *
   * @param count the number of random bytes to generate.
   * @param [callback(err, bytes)] called once the operation completes.
   *
   * @return count random bytes as a string.
   */
  ctx.generate = function(count, callback) {
    // do synchronously
    if(!callback) {
      return ctx.generateSync(count);
    }

// simple generator using counter-based CBC
    var cipher = ctx.plugin.cipher;
    var increment = ctx.plugin.increment;
    var formatKey = ctx.plugin.formatKey;
    var formatSeed = ctx.plugin.formatSeed;
    var b = forge.util.createBuffer();

// paranoid deviation from Fortuna:
    // reset key for every request to protect previously
    // generated random bytes should the key be discovered;
    // there is no 100ms based reseeding because of this
    // forced reseed for every `generate` call
    ctx.key = null;

generate();

function generate(err) {
      if(err) {
        return callback(err);
      }

// sufficient bytes generated
      if(b.length() >= count) {
        return callback(null, b.getBytes(count));
      }

// if amount of data generated is greater than 1 MiB, trigger reseed
      if(ctx.generated > 0xfffff) {
        ctx.key = null;
      }

if(ctx.key === null) {
        // prevent stack overflow
        return forge.util.nextTick(function() {
          _reseed(generate);
        });
      }

// generate the random bytes
      var bytes = cipher(ctx.key, ctx.seed);
      ctx.generated += bytes.length;
      b.putBytes(bytes);

// generate bytes for a new key and seed
      ctx.key = formatKey(cipher(ctx.key, increment(ctx.seed)));
      ctx.seed = formatSeed(cipher(ctx.key, ctx.seed));

forge.util.setImmediate(generate);
    }
  };

/**
   * Generates random bytes synchronously.
   *
   * @param count the number of random bytes to generate.
   *
   * @return count random bytes as a string.
   */
  ctx.generateSync = function(count) {
    // simple generator using counter-based CBC
    var cipher = ctx.plugin.cipher;
    var increment = ctx.plugin.increment;
    var formatKey = ctx.plugin.formatKey;
    var formatSeed = ctx.plugin.formatSeed;

var b = forge.util.createBuffer();
    while(b.length() < count) {
      // if amount of data generated is greater than 1 MiB, trigger reseed
      if(ctx.generated > 0xfffff) {
        ctx.key = null;
      }

if(ctx.key === null) {
        _reseedSync();
      }

// generate the random bytes
      var bytes = cipher(ctx.key, ctx.seed);
      ctx.generated += bytes.length;
      b.putBytes(bytes);

// generate bytes for a new key and seed
      ctx.key = formatKey(cipher(ctx.key, increment(ctx.seed)));
      ctx.seed = formatSeed(cipher(ctx.key, ctx.seed));
    }

return b.getBytes(count);
  };

/**
   * Private function that asynchronously reseeds a generator.
   *
   * @param callback(err) called once the operation completes.
   */
  function _reseed(callback) {
    if(ctx.pools[0].messageLength >= 32) {
      _seed();
      return callback();
    }
    // not enough seed data...
    var needed = (32 - ctx.pools[0].messageLength) << 5;
    ctx.seedFile(needed, function(err, bytes) {
      if(err) {
        return callback(err);
      }
      ctx.collect(bytes);
      _seed();
      callback();
    });
  }

/**
   * Private function that synchronously reseeds a generator.
   */
  function _reseedSync() {
    if(ctx.pools[0].messageLength >= 32) {
      return _seed();
    }
    // not enough seed data...
    var needed = (32 - ctx.pools[0].messageLength) << 5;
    ctx.collect(ctx.seedFileSync(needed));
    _seed();
  }

/**
   * Private function that seeds a generator once enough bytes are available.
   */
  function _seed() {
    // update reseed count
    ctx.reseeds = (ctx.reseeds === 0xffffffff) ? 0 : ctx.reseeds + 1;

// goal is to update `key` via:
    // key = hash(key + s)
    //   where 's' is all collected entropy from selected pools, then...

// create a plugin-based message digest
    var md = ctx.plugin.md.create();

// consume current key bytes
    md.update(ctx.keyBytes);

// digest the entropy of pools whose index k meet the
    // condition 'n mod 2^k == 0' where n is the number of reseeds
    var _2powK = 1;
    for(var k = 0; k < 32; ++k) {
      if(ctx.reseeds % _2powK === 0) {
        md.update(ctx.pools[k].digest().getBytes());
        ctx.pools[k].start();
      }
      _2powK = _2powK << 1;
    }

// get digest for key bytes
    ctx.keyBytes = md.digest().getBytes();

// paranoid deviation from Fortuna:
    // update `seed` via `seed = hash(key)`
    // instead of initializing to zero once and only
    // ever incrementing it
    md.start();
    md.update(ctx.keyBytes);
    var seedBytes = md.digest().getBytes();

// update state
    ctx.key = ctx.plugin.formatKey(ctx.keyBytes);
    ctx.seed = ctx.plugin.formatSeed(seedBytes);
    ctx.generated = 0;
  }

/**
   * The built-in default seedFile. This seedFile is used when entropy
   * is needed immediately.
   *
   * @param needed the number of bytes that are needed.
   *
   * @return the random bytes.
   */
  function defaultSeedFile(needed) {
    // use window.crypto.getRandomValues strong source of entropy if available
    var getRandomValues = null;
    var globalScope = forge.util.globalScope;
    var _crypto = globalScope.crypto || globalScope.msCrypto;
    if(_crypto && _crypto.getRandomValues) {
      getRandomValues = function(arr) {
        return _crypto.getRandomValues(arr);
      };
    }

// be sad and add some weak random data
    if(b.length() < needed) {
      /* Draws from Park-Miller "minimal standard" 31 bit PRNG,
      implemented with David G. Carta's optimization: with 32 bit math
      and without division (Public Domain). */
      var hi, lo, next;
      var seed = Math.floor(Math.random() * 0x010000);
      while(b.length() < needed) {
        lo = 16807 * (seed & 0xFFFF);
        hi = 16807 * (seed >> 16);
        lo += (hi & 0x7FFF) << 16;
        lo += hi >> 15;
        lo = (lo & 0x7FFFFFFF) + (lo >> 31);
        seed = lo & 0xFFFFFFFF;

// consume lower 3 bytes of seed
        for(var i = 0; i < 3; ++i) {
          // throw in more pseudo random
          next = seed >>> (i << 3);
          next ^= Math.floor(Math.random() * 0x0100);
          b.putByte(next & 0xFF);
        }
      }
    }

return b.getBytes(needed);
  }
  // initialize seed file APIs
  if(_crypto) {
    // use nodejs async API
    ctx.seedFile = function(needed, callback) {
      _crypto.randomBytes(needed, function(err, bytes) {
        if(err) {
          return callback(err);
        }
        callback(null, bytes.toString());
      });
    };
    // use nodejs sync API
    ctx.seedFileSync = function(needed) {
      return _crypto.randomBytes(needed).toString();
    };
  } else {
    ctx.seedFile = function(needed, callback) {
      try {
        callback(null, defaultSeedFile(needed));
      } catch(e) {
        callback(e);
      }
    };
    ctx.seedFileSync = defaultSeedFile;
  }

/**
   * Adds entropy to a prng ctx's accumulator.
   *
   * @param bytes the bytes of entropy as a string.
   */
  ctx.collect = function(bytes) {
    // iterate over pools distributing entropy cyclically
    var count = bytes.length;
    for(var i = 0; i < count; ++i) {
      ctx.pools[ctx.pool].update(bytes.substr(i, 1));
      ctx.pool = (ctx.pool === 31) ? 0 : ctx.pool + 1;
    }
  };

/**
   * Collects an integer of n bits.
   *
   * @param i the integer entropy.
   * @param n the number of bits in the integer.
   */
  ctx.collectInt = function(i, n) {
    var bytes = '';
    for(var x = 0; x < n; x += 8) {
      bytes += String.fromCharCode((i >> x) & 0xFF);
    }
    ctx.collect(bytes);
  };

/**
   * Registers a Web Worker to receive immediate entropy from the main thread.
   * This method is required until Web Workers can access the native crypto
   * API. This method should be called twice for each created worker, once in
   * the main thread, and once in the worker itself.
   *
   * @param worker the worker to register.
   */
  ctx.registerWorker = function(worker) {
    // worker receives random bytes
    if(worker === self) {
      ctx.seedFile = function(needed, callback) {
        function listener(e) {
          var data = e.data;
          if(data.forge && data.forge.prng) {
            self.removeEventListener('message', listener);
            callback(data.forge.prng.err, data.forge.prng.bytes);
          }
        }
        self.addEventListener('message', listener);
        self.postMessage({forge: {prng: {needed: needed}}});
      };
    } else {
      // main thread sends random bytes upon request
      var listener = function(e) {
        var data = e.data;
        if(data.forge && data.forge.prng) {
          ctx.seedFile(data.forge.prng.needed, function(err, bytes) {
            worker.postMessage({forge: {prng: {err: err, bytes: bytes}}});
          });
        }
      };
      // TODO: do we need to remove the event listener when the worker dies?
      worker.addEventListener('message', listener);
    }
  };

return ctx;
};

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