factoring out AES-specific stuff

1 files changed, 110 insertions, 0 deletions

diff --git a/include/aesni/box_data.h b/include/aesni/box_data.h
new file mode 100644
index 0000000..160cf34
--- /dev/null
+++ b/include/aesni/box_data.h
@@ -0,0 +1,110 @@
+/**
+ * \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.
+ */
+
+#pragma once
+
+#include "error.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef union
+{
+    AesNI_Block128 aes128_key;
+    AesNI_Block192 aes192_key;
+    AesNI_Block256 aes256_key;
+}
+AesNI_BoxAlgorithmParams;
+
+typedef enum
+{
+    AESNI_AES128,
+    AESNI_AES192,
+    AESNI_AES256,
+}
+AesNI_BoxAlgorithm;
+
+typedef enum
+{
+    AESNI_ECB,
+    AESNI_CBC,
+    AESNI_CFB,
+    AESNI_OFB,
+    AESNI_CTR,
+}
+AesNI_BoxMode;
+
+typedef union
+{
+    AesNI_Aes128_RoundKeys aes128_encryption_keys;
+    AesNI_Aes192_RoundKeys aes192_encryption_keys;
+    AesNI_Aes256_RoundKeys aes256_encryption_keys;
+}
+AesNI_BoxEncryptionParams;
+
+typedef union
+{
+    AesNI_Aes128_RoundKeys aes128_decryption_keys;
+    AesNI_Aes192_RoundKeys aes192_decryption_keys;
+    AesNI_Aes256_RoundKeys aes256_decryption_keys;
+}
+AesNI_BoxDecryptionParams;
+
+typedef union
+{
+    AesNI_Block128 aes_block;
+}
+AesNI_BoxBlock;
+
+typedef AesNI_StatusCode (*AesNI_BoxDeriveParams)(
+    const AesNI_BoxAlgorithmParams* params,
+    AesNI_BoxEncryptionParams*,
+    AesNI_BoxDecryptionParams*,
+    AesNI_ErrorDetails* err_details);
+
+typedef AesNI_StatusCode (*AesNI_BoxEncrypt)(
+    const AesNI_BoxBlock* plaintext,
+    const AesNI_BoxEncryptionParams* params,
+    AesNI_BoxBlock* ciphertext,
+    AesNI_ErrorDetails* err_details);
+
+typedef AesNI_StatusCode (*AesNI_BoxDecrypt)(
+    const AesNI_BoxBlock* ciphertext,
+    const AesNI_BoxDecryptionParams* params,
+    AesNI_BoxBlock* plaintext,
+    AesNI_ErrorDetails* err_details);
+
+typedef AesNI_StatusCode (*AesNI_BoxXorBlock)(
+    AesNI_BoxBlock*,
+    const AesNI_BoxBlock*,
+    AesNI_ErrorDetails*);
+
+typedef struct
+{
+    AesNI_BoxDeriveParams derive_params;
+    AesNI_BoxEncrypt encrypt;
+    AesNI_BoxDecrypt decrypt;
+    AesNI_BoxXorBlock xor_block;
+}
+AesNI_BoxAlgorithmInterface;
+
+typedef struct
+{
+    const AesNI_BoxAlgorithmInterface* algorithm_iface;
+    AesNI_BoxEncryptionParams encrypt_params;
+    AesNI_BoxDecryptionParams decrypt_params;
+    AesNI_BoxMode mode;
+    AesNI_BoxBlock iv;
+}
+AesNI_Box;
+
+#ifdef __cplusplus
+}
+#endif