How to use the ripple-lib.sjcl function in ripple-lib

/* eslint-disable max-len */
/* eslint new-cap: [2, {newIsCapExceptions: ["bn"]}] */
'use strict';
const assert = require('assert');
const sjcl = require('ripple-lib').sjcl;

// fix normalize bug in scjl:
// https://github.com/bitwiseshiftleft/sjcl/pull/221
function normalizeFix(bn) {
  while (bn.limbs.length > 0 && bn.limbs[bn.limbs.length - 1] === 0) {
    bn.limbs.pop();
  }
  return bn;
}

function testExp(vec) {
  const actual = normalizeFix(new sjcl.bn(vec.g).powermod(
    new sjcl.bn(vec.e), new sjcl.bn(vec.m)));
  const expected = new sjcl.bn(vec.r);
  assert.strictEqual(actual.toString(), expected.toString());
}

'use strict';
var _ = require('lodash');
var util = require('util');
var request = require('request');
var moment = require('moment');
var EventEmitter = require('events').EventEmitter;
var ripple = require('ripple-lib');
var sjcl = ripple.sjcl;
var check = require('check-types');
var Promise = require('bluebird');

/* --------------------------------- CONSTS --------------------------------- */

var DEBUG = true;

var REQUEST_STATUS = {
  QUEUED: 1,
  REQUESTING: 2
};

var DEFAULT_PORT = undefined;

var IPP_PATTERN = /\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\:([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])\b/;

var hexMatch    = new RegExp('(0x)?[0-9a-f]+');
var base64Match = new RegExp('^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})([=]{1,2})?$');
var sjcl        = require('ripple-lib').sjcl;

var Memos = function (tx) {
  var list = [];

//NOTE: keep all memos  
//  if ( tx.metaData.TransactionResult !== "tesSUCCESS" ) {
//    return list;
//  }

  
  if (tx.Memos) {
    tx.Memos.forEach(function(memo, i) {
      var data = {
        account : tx.Account,
        memo_type    : memo.Memo.MemoType,
        memo_data    : memo.Memo.MemoData,

'use strict';
var sjcl = require('ripple-lib').sjcl;
var Seed = require('ripple-lib').Seed;
var SerializedObject = require('ripple-lib').SerializedObject;
var validate = require('../lib/validate');

/**
 * These prefixes are inserted before the source material used to
 * generate various hashes. This is done to put each hash in its own
 * "space." This way, two different types of objects with the
 * same binary data will produce different hashes.
 *
 * Each prefix is a 4-byte value with the last byte set to zero
 * and the first three bytes formed from the ASCII equivalent of
 * some arbitrary string. For example "TXN".
 */
var HASH_TX_ID = 0x54584E00; // 'TXN'
var HASH_TX_SIGN = 0x53545800; // 'STX'

var _ = require('lodash');
var util = require('util');
var request = require('request');
var moment = require('moment');
var EventEmitter = require('events').EventEmitter;
var ripple = require('ripple-lib');
var sjcl = ripple.sjcl;
var check = require('check-types');
var Promise = require('bluebird')

/* --------------------------------- CONSTS --------------------------------- */

var DEBUG = true;

var REQUEST_STATUS = {
  QUEUED: 1,
  REQUESTING: 2
};

var DEFAULT_PORT = 51235

var IPP_PATTERN = /\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\:([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])\b/;

function withDeterministicPRNG(callback, done) {
  var prng = ripple.sjcl.random;
  ripple.sjcl.random = new PRNGMock();
  callback(function(err, data) {
    ripple.sjcl.random = prng;
    done(err, data);
  });
}

app.use(cors());
    app.use(express.json());
    app.use(express.urlencoded());

    app.delete('/v1/user', hmac.middleware, api.blob.delete);
    app.post('/v1/user/ecdsa', ecdsa.middleware, api.blob.create);
    app.post('/v1/user', api.blob.create);
    app.get('/v1/user/:username', api.user.get);
    app.get('/v1/authinfo', api.user.authinfo);
    app.get('/ripple.txt', function (req, res, next) {
      res.send('[authinfo_url]\r\nhttp://localhost:'+config.port+'/v1/authinfo\r\n');
    });

    while(!ripple.sjcl.random.isReady()) {
      ripple.sjcl.random.addEntropy(require('crypto').randomBytes(128).toString('base64')); //add entropy to seed the generator
    }

    server= http.createServer(app);

    store.db('blob')
    .truncate()
    .then(function() {
      server.listen(config.port,function() {
        done();
      });
    });

  });

var config   = require('../../config');
var reporter = require('../../lib/reporter');
var utils    = require('../../lib/utils');
var Queue    = require('queuelib');
var client   = require('blockscore')(config.blockscore.key);
var jumio    = require('../../lib/jumio');
var sjcl     = require('ripple-lib').sjcl;
var store    = require('./store');
var getAttestation = require('./get');

module.exports = function (options, callback) {
  
  if (!options.subject) {
    return callback({
      message : '\'subject\' identifier is required',
      code    : 400
    });
  } else if (!options.client_id) {
    return callback({
      message : '\'client_id\' is required',
      code    : 400
    });    
  } else if (!options.profile &&

hmac.setStore(store);

    app.use(cors());
    app.use(express.json());
    app.use(express.urlencoded());

    app.delete('/v1/user', hmac.middleware, api.blob.delete);
    app.post('/v1/user/ecdsa', ecdsa.middleware, api.blob.create);
    app.post('/v1/user', api.blob.create);
    app.get('/v1/user/:username', api.user.get);
    app.get('/v1/authinfo', api.user.authinfo);
    app.get('/ripple.txt', function (req, res, next) {
      res.send('[authinfo_url]\r\nhttp://localhost:'+config.port+'/v1/authinfo\r\n');
    });

    while(!ripple.sjcl.random.isReady()) {
      ripple.sjcl.random.addEntropy(require('crypto').randomBytes(128).toString('base64')); //add entropy to seed the generator
    }

    server= http.createServer(app);

    store.db('blob')
    .truncate()
    .then(function() {
      server.listen(config.port,function() {
        done();
      });
    });

  });

function withDeterministicPRNG(callback, done) {
  var prng = ripple.sjcl.random;
  ripple.sjcl.random = new PRNGMock();
  callback(function(err, data) {
    ripple.sjcl.random = prng;
    done(err, data);
  });
}