Sha256: e34a4b5fb97d34008071dc50baf437ab73308974890831b34dcf47693458b6d8
Contents?: true
Size: 662 Bytes
Versions: 8
Compression:
Stored size: 662 Bytes
Contents
var xor = require('buffer-xor')
function incr32 (iv) {
var len = iv.length
var item
while (len--) {
item = iv.readUInt8(len)
if (item === 255) {
iv.writeUInt8(0, len)
} else {
item++
iv.writeUInt8(item, len)
break
}
}
}
function getBlock (self) {
var out = self._cipher.encryptBlock(self._prev)
incr32(self._prev)
return out
}
exports.encrypt = function (self, chunk) {
while (self._cache.length < chunk.length) {
self._cache = Buffer.concat([self._cache, getBlock(self)])
}
var pad = self._cache.slice(0, chunk.length)
self._cache = self._cache.slice(chunk.length)
return xor(chunk, pad)
}
Version data entries
8 entries across 8 versions & 3 rubygems