From 8a9208612eec8ddae4c418485d848ecfa0613699 Mon Sep 17 00:00:00 2001
From: Anton Kling <anton@kling.gg>
Date: Mon, 30 Oct 2023 22:12:14 +0100
Subject: Meta: Move kernel and userland to their own folders.

This is to allow both the kernel and the userland to share certain
header files and to make the folder structure a bit more clear.
---
 crypto/ChaCha20/chacha20.c | 29 -----------------------------
 crypto/ChaCha20/chacha20.h | 15 ---------------
 crypto/SHA1                |  1 -
 3 files changed, 45 deletions(-)
 delete mode 100644 crypto/ChaCha20/chacha20.c
 delete mode 100644 crypto/ChaCha20/chacha20.h
 delete mode 160000 crypto/SHA1

(limited to 'crypto')

diff --git a/crypto/ChaCha20/chacha20.c b/crypto/ChaCha20/chacha20.c
deleted file mode 100644
index 5bf7aa2..0000000
--- a/crypto/ChaCha20/chacha20.c
+++ /dev/null
@@ -1,29 +0,0 @@
-#include "chacha20.h"
-
-#define ROTL(a, b) (((a) << (b)) | ((a) >> (32 - (b))))
-#define QR(a, b, c, d)                                                         \
-	(a += b, d ^= a, d = ROTL(d, 16), c += d, b ^= c, b = ROTL(b, 12),     \
-	 a += b, d ^= a, d = ROTL(d, 8), c += d, b ^= c, b = ROTL(b, 7))
-#define ROUNDS 20
-
-void chacha_block(uint32_t out[16], uint32_t const in[16])
-{
-	int i;
-	uint32_t x[16];
-
-	for (i = 0; i < 16; ++i)
-		x[i] = in[i];
-	for (i = 0; i < ROUNDS; i += 2) {
-		QR(x[0], x[4], x[8], x[12]);
-		QR(x[1], x[5], x[9], x[13]);
-		QR(x[2], x[6], x[10], x[14]);
-		QR(x[3], x[7], x[11], x[15]);
-
-		QR(x[0], x[5], x[10], x[15]);
-		QR(x[1], x[6], x[11], x[12]);
-		QR(x[2], x[7], x[8], x[13]);
-		QR(x[3], x[4], x[9], x[14]);
-	}
-	for (i = 0; i < 16; ++i)
-		out[i] = x[i] + in[i];
-}
diff --git a/crypto/ChaCha20/chacha20.h b/crypto/ChaCha20/chacha20.h
deleted file mode 100644
index 17532f3..0000000
--- a/crypto/ChaCha20/chacha20.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef CHACHA20_H
-#define CHACHA20_H
-#include <stdint.h>
-
-#define KEY 4
-#define KEY_SIZE 8*sizeof(uint32_t)
-#define COUNT 12
-#define COUNT_SIZE sizeof(uint32_t)
-#define COUNT_MAX (0x100000000-1) // 2^32 - 1
-#define NONCE 13
-#define NONCE_SIZE 2*sizeof(uint32_t)
-#define BLOCK_SIZE 16*sizeof(uint32_t)
-
-void chacha_block(uint32_t out[16], uint32_t const in[16]);
-#endif
diff --git a/crypto/SHA1 b/crypto/SHA1
deleted file mode 160000
index 237ea70..0000000
--- a/crypto/SHA1
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 237ea7023cad8402932dfbde337d69e5f4d515f6
-- 
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