From 225ef13cc7f58b69ef4c4db6308a225c726359f7 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Wed, 24 Jun 2015 05:59:11 +0300
Subject: move executables from test/ to utils/

---
 utils/block/aes128cbc_decrypt_block.c | 76 +++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 utils/block/aes128cbc_decrypt_block.c

(limited to 'utils/block/aes128cbc_decrypt_block.c')

diff --git a/utils/block/aes128cbc_decrypt_block.c b/utils/block/aes128cbc_decrypt_block.c
new file mode 100644
index 0000000..95120e7
--- /dev/null
+++ b/utils/block/aes128cbc_decrypt_block.c
@@ -0,0 +1,76 @@
+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ *            See LICENSE.txt for details.
+ */
+
+#include <aesni/all.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void exit_with_usage()
+{
+    puts("Usage: aes128cbc_decrypt_block.exe KEY0 IV0 [CIPHERTEXT0...] [-- KEY1 IV1 [CIPHERTEXT1...]...]");
+    exit(EXIT_FAILURE);
+}
+
+static void print_error(AesNI_StatusCode status)
+{
+    fprintf(stderr, "AesNI error: %s\n", aesni_strerror(status));
+}
+
+int main(int argc, char** argv)
+{
+    AesNI_StatusCode status = AESNI_SUCCESS;
+
+    for (--argc, ++argv; argc > -1; --argc, ++argv)
+    {
+        AesNI_Block128 plaintext, ciphertext, iv;
+        AesNI_Aes128_Key key;
+        AesNI_Aes128_RoundKeys encryption_keys, decryption_keys;
+
+        if (argc < 2)
+            exit_with_usage();
+
+        if (aesni_is_error(status = aesni_aes128_parse_key(&key, *argv, NULL)))
+        {
+            print_error(status);
+            exit_with_usage();
+        }
+
+        if (aesni_is_error(status = aesni_aes_parse_block(&iv, argv[1], NULL)))
+        {
+            print_error(status);
+            exit_with_usage();
+        }
+
+        aesni_aes128_expand_key(&key, &encryption_keys);
+        aesni_aes128_derive_decryption_keys(&encryption_keys, &decryption_keys);
+
+        for (argc -= 2, argv += 2; argc > 0; --argc, ++argv)
+        {
+            if (strcmp("--", *argv) == 0)
+                break;
+
+            if (aesni_is_error(status = aesni_aes_parse_block(&ciphertext, *argv, NULL)))
+            {
+                print_error(status);
+                continue;
+            }
+
+            plaintext = aesni_aes128_decrypt_block_cbc(ciphertext, &decryption_keys, iv, &iv);
+
+            if (aesni_is_error(status = aesni_aes_print_block(&plaintext, NULL)))
+            {
+                print_error(status);
+                continue;
+            }
+        }
+    }
+
+    return 0;
+}
-- 
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