1 files changed, 0 insertions, 77 deletions
diff --git a/src/crypto.c b/src/crypto.c
deleted file mode 100644
index 1172644..0000000
--- a/src/crypto.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/* This file is part of Nekopack.
-
-   Copyright (C) 2017 Jakob Tsar-Fox, All Rights Reserved.
-
-   Nekopack is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation, either version 3 of the License, or (at
-   your option) any later version.
-
-   Nekopack is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with Nekopack. If not, see <http://www.gnu.org/licenses/>. */
-
-#include "cli.h"
-#include "crypto.h"
-
-
-/* Returns the encryption keys for a given game value. */
-key get_encryption_key(game_type game) {
-    key encryption_key;
-    switch (game) {
-        case NEKOPARA_VOLUME_0:
-            encryption_key.master_key = 0x1548e29c;
-            encryption_key.initial_fallback_key = 0x9c;
-            encryption_key.primary_fallback_key = 0xd7;
-            encryption_key.uses_initial_key = 1;
-            break;
-        case NEKOPARA_VOLUME_0_STEAM:
-            encryption_key.master_key = 0x44528b87;
-            encryption_key.initial_fallback_key = 0x87;
-            encryption_key.primary_fallback_key = 0x23;
-            encryption_key.uses_initial_key = 1;
-            break;
-        case NEKOPARA_VOLUME_1:
-            encryption_key.master_key = 0x1548e29c;
-            encryption_key.initial_fallback_key = 0x00;
-            encryption_key.primary_fallback_key = 0xd7;
-            encryption_key.uses_initial_key = 0;
-            break;
-        case NEKOPARA_VOLUME_1_STEAM:
-            encryption_key.master_key = 0x44528b87;
-            encryption_key.initial_fallback_key = 0x00;
-            encryption_key.primary_fallback_key = 0x23;
-            encryption_key.uses_initial_key = 0;
-            break;
-        default:
-            encryption_key.master_key = 0x00000000;
-            encryption_key.initial_fallback_key = 0x00;
-            encryption_key.primary_fallback_key = 0x00;
-            encryption_key.uses_initial_key = 0;
-    }
-    return encryption_key;
-}
-
-
-/* Decrypts the contents of a buffer according to a file key. */
-void decrypt_buffer(Bytef *encrypted_buffer, uint64_t buffer_length,
-                    key encryption_key, uint32_t file_key) {
-    uint32_t xor_key = file_key ^ encryption_key.master_key;
-    uint8_t initial_key = xor_key & 0xff;
-    uint8_t primary_key = (xor_key >> 24 ^ xor_key >> 16 ^ \
-                           xor_key >> 8 ^ xor_key) & 0xff;
-    if (primary_key == 0)
-        primary_key = encryption_key.primary_fallback_key;
-    if (encryption_key.uses_initial_key) {
-        if (initial_key == 0)
-            initial_key = encryption_key.initial_fallback_key;
-        encrypted_buffer[0] ^= initial_key;
-    }
-    for (uint64_t i = 0; i < buffer_length; i++) {
-        encrypted_buffer[i] ^= primary_key;
-    }
-}