From e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d Mon Sep 17 00:00:00 2001 From: Piotr Russ Date: Mon, 16 Nov 2020 00:10:28 +0100 Subject: api, login, auth --- node_modules/browserify-aes/modes/cfb.js | 33 ++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 node_modules/browserify-aes/modes/cfb.js (limited to 'node_modules/browserify-aes/modes/cfb.js') diff --git a/node_modules/browserify-aes/modes/cfb.js b/node_modules/browserify-aes/modes/cfb.js new file mode 100644 index 0000000..03b2ee9 --- /dev/null +++ b/node_modules/browserify-aes/modes/cfb.js @@ -0,0 +1,33 @@ +var Buffer = require('safe-buffer').Buffer +var xor = require('buffer-xor') + +function encryptStart (self, data, decrypt) { + var len = data.length + var out = xor(data, self._cache) + self._cache = self._cache.slice(len) + self._prev = Buffer.concat([self._prev, decrypt ? data : out]) + return out +} + +exports.encrypt = function (self, data, decrypt) { + var out = Buffer.allocUnsafe(0) + var len + + while (data.length) { + if (self._cache.length === 0) { + self._cache = self._cipher.encryptBlock(self._prev) + self._prev = Buffer.allocUnsafe(0) + } + + if (self._cache.length <= data.length) { + len = self._cache.length + out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)]) + data = data.slice(len) + } else { + out = Buffer.concat([out, encryptStart(self, data, decrypt)]) + break + } + } + + return out +} -- cgit v1.2.3