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Diffstat (limited to 'node_modules/cryptiles/lib/index.js')
| -rwxr-xr-x | node_modules/cryptiles/lib/index.js | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/node_modules/cryptiles/lib/index.js b/node_modules/cryptiles/lib/index.js deleted file mode 100755 index 511eab6..0000000 --- a/node_modules/cryptiles/lib/index.js +++ /dev/null @@ -1,88 +0,0 @@ -'use strict'; - -// Load modules - -const Crypto = require('crypto'); -const Boom = require('boom'); - - -// Declare internals - -const internals = {}; - - -// Generate a cryptographically strong pseudo-random data - -exports.randomString = function (size) { - - const buffer = exports.randomBits((size + 1) * 6); - if (buffer instanceof Error) { - return buffer; - } - - const string = buffer.toString('base64').replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, ''); - return string.slice(0, size); -}; - - -// Return a random string of digits - -exports.randomDigits = function (size) { - - const buffer = exports.randomBits(size * 8); - if (buffer instanceof Error) { - return buffer; - } - - const digits = []; - for (let i = 0; i < buffer.length; ++i) { - digits.push(Math.floor(buffer[i] / 25.6)); - } - - return digits.join(''); -}; - - -// Generate a buffer of random bits - -exports.randomBits = function (bits) { - - if (!bits || - bits < 0) { - - return Boom.internal('Invalid random bits count'); - } - - const bytes = Math.ceil(bits / 8); - try { - return Crypto.randomBytes(bytes); - } - catch (err) { - return Boom.internal('Failed generating random bits: ' + err.message); - } -}; - - -// Compare two strings using fixed time algorithm (to prevent time-based analysis of MAC digest match) - -exports.fixedTimeComparison = function (a, b) { - - if (typeof a !== 'string' || - typeof b !== 'string') { - - return false; - } - - let mismatch = (a.length === b.length ? 0 : 1); - if (mismatch) { - b = a; - } - - for (let i = 0; i < a.length; ++i) { - const ac = a.charCodeAt(i); - const bc = b.charCodeAt(i); - mismatch |= (ac ^ bc); - } - - return (mismatch === 0); -}; |