From 43f8a6d1824780a1d99dc642a6dac2153d958b21 Mon Sep 17 00:00:00 2001
From: Csaba Kiraly <csaba.kiraly@gmail.com>
Date: Thu, 15 Jun 2023 11:47:48 +0200
Subject: [PATCH] Revert "encoding: introducing the "nop" cipher"

This reverts commit 50dd3cd7b3ad1a4264a96dafa85eb4eb2ecca0dc.
---
 .../private/eth/p2p/discoveryv5/encoding.nim  |  3 +-
 libp2pdht/private/eth/p2p/discoveryv5/nop.nim | 74 -------------------
 2 files changed, 1 insertion(+), 76 deletions(-)
 delete mode 100644 libp2pdht/private/eth/p2p/discoveryv5/nop.nim

diff --git a/libp2pdht/private/eth/p2p/discoveryv5/encoding.nim b/libp2pdht/private/eth/p2p/discoveryv5/encoding.nim
index df12406..5bdf475 100644
--- a/libp2pdht/private/eth/p2p/discoveryv5/encoding.nim
+++ b/libp2pdht/private/eth/p2p/discoveryv5/encoding.nim
@@ -24,7 +24,6 @@ import
   libp2p/signed_envelope,
   metrics,
   nimcrypto,
-  nop,
   "."/[messages, messages_encoding, node, spr, hkdf, sessions],
   "."/crypto
 
@@ -41,7 +40,7 @@ logScope:
   topics = "discv5"
 
 type
-  cipher = nop128
+  cipher = aes128
 
 const
   version: uint16 = 1
diff --git a/libp2pdht/private/eth/p2p/discoveryv5/nop.nim b/libp2pdht/private/eth/p2p/discoveryv5/nop.nim
deleted file mode 100644
index 1c8394d..0000000
--- a/libp2pdht/private/eth/p2p/discoveryv5/nop.nim
+++ /dev/null
@@ -1,74 +0,0 @@
-#
-#
-#                    NimCrypto
-#        (c) Copyright 2023 Status
-#
-#      See the file "LICENSE", included in this
-#    distribution, for details about the copyright.
-#
-
-## This module implements a no-op(NOP) crypto that des nothing,
-## Do not use for anything else than testing.
-
-{.deadCodeElim:on.}
-
-when sizeof(int) == 4:
-  type
-    NopContext[bits: static[uint]] = object
-      skey: array[120, uint32]
-      nr: int
-elif sizeof(int) == 8:
-  type
-    NopContext[bits: static[uint]] = object
-      skey: array[120, uint64]
-      nr: int
-
-type
-  nop128* = NopContext[128]
-  nop192* = NopContext[192]
-  nop256* = NopContext[256]
-  nop* = nop128 | nop192 | nop256
-
-proc encrypt*(ctx: NopContext, input: openarray[byte],
-              output: var openarray[byte]) =
-  for i, v in input:
-    output[i] = v
-
-proc decrypt*(ctx: NopContext, input: openarray[byte],
-              output: var openarray[byte]) =
-  for i, v in input:
-    output[i] = v
-
-template sizeKey*(ctx: NopContext): int =
-  (ctx.bits div 8)
-
-template sizeBlock*(ctx: NopContext): int =
-  (16)
-
-template sizeKey*(r: typedesc[nop]): int =
-  when r is nop128:
-    (16)
-  elif r is nop192:
-    (24)
-  elif r is nop256:
-    (32)
-
-template sizeBlock*(r: typedesc[nop]): int =
-  (16)
-
-proc init*(ctx: var NopContext, key: openarray[byte]) {.inline.} =
-  discard
-
-proc init*(ctx: var NopContext, key: ptr byte, nkey: int = 0) {.inline.} =
-  discard
-
-proc clear*(ctx: var NopContext) {.inline.} =
-  discard
-
-proc encrypt*(ctx: var NopContext, inbytes: ptr byte,
-              outbytes: ptr byte) {.inline.} =
-  outbytes = inbytes
-
-proc decrypt*(ctx: var NopContext, inbytes: ptr byte,
-              outbytes: ptr byte) {.inline.} =
-  outbytes = inbytes