Refactor CBC utils

1 files changed, 0 insertions, 36 deletions

diff --git a/src/utils/crypto/CBCDecrypter.scala b/src/utils/crypto/CBCDecrypter.scala
deleted file mode 100644
index a6cf855..0000000
--- a/src/utils/crypto/CBCDecrypter.scala
+++ /dev/null
@@ -1,36 +0,0 @@
-
-package ixee.cryptopals.utils.crypto
-
-import javax.crypto.Cipher
-import ixee.cryptopals.utils.ConversionUtils._
-import ixee.cryptopals.utils.FunctionUtils._
-import ixee.cryptopals.utils.CryptoUtils._
-import ixee.cryptopals.utils.TupleUtils._
-import ixee.cryptopals.utils.ByteUtils._
-
-class CBCDecrypter(cipher: Cipher, init: Seq[Byte]) {
-  val blockSize = 16
-
-  var state: Seq[Byte] = init
-  var leftover: Seq[Byte] = Seq()
-
-  def dec(data: Seq[Byte]): Seq[Byte] = {
-    val (blocks, newLeftover) = blockized(leftover ++ data)(blockSize)
-    leftover = newLeftover
-    blocks.map(decBlock _).foldLeft(Seq[Byte]())(_ ++ _)
-  }
-
-  def decBlock(data: Seq[Byte]): Seq[Byte] = {
-    val ret = cipher.update(data.toArray).toSeq xor state
-    state = data
-    ret
-  }
-
-  def end(): Seq[Byte] =
-    cipher.doFinal((pkcs7pad(leftover, blockSize) xor state).toArray)
-
-  def blockized(data: Seq[Byte])(size: Int): (Seq[Seq[Byte]], Seq[Byte]) =
-    groupBlocks <-: data.splitAt(data.length - (data.length % size))
-
-  def groupBlocks: Seq[Byte] => Seq[Seq[Byte]] = _.grouped(blockSize).toSeq
-}