factoring out AES-specific stuff

1 files changed, 155 insertions, 0 deletions

diff --git a/include/aesni/box_aes.h b/include/aesni/box_aes.h
new file mode 100644
index 0000000..391f13e
--- /dev/null
+++ b/include/aesni/box_aes.h
@@ -0,0 +1,155 @@
+/**
+ * \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 "aes.h"
+#include "box_aes.h"
+#include "box_data.h"
+#include "data.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+static __inline AesNI_StatusCode aesni_box_derive_params_aes128(
+    const AesNI_BoxAlgorithmParams* algorithm_params,
+    AesNI_BoxEncryptionParams* encrypt_params,
+    AesNI_BoxDecryptionParams* decrypt_params,
+    AesNI_ErrorDetails* err_details)
+{
+    aesni_aes128_expand_key_(
+        algorithm_params->aes128_key,
+        &encrypt_params->aes128_encryption_keys);
+    aesni_aes128_derive_decryption_keys_(
+        &encrypt_params->aes128_encryption_keys,
+        &decrypt_params->aes128_decryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_derive_params_aes192(
+    const AesNI_BoxAlgorithmParams* algorithm_params,
+    AesNI_BoxEncryptionParams* encrypt_params,
+    AesNI_BoxDecryptionParams* decrypt_params,
+    AesNI_ErrorDetails* err_details)
+{
+    aesni_aes192_expand_key_(
+        algorithm_params->aes192_key.lo,
+        algorithm_params->aes192_key.hi,
+        &encrypt_params->aes192_encryption_keys);
+    aesni_aes192_derive_decryption_keys_(
+        &encrypt_params->aes192_encryption_keys,
+        &decrypt_params->aes192_decryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_derive_params_aes256(
+    const AesNI_BoxAlgorithmParams* algorithm_params,
+    AesNI_BoxEncryptionParams* encrypt_params,
+    AesNI_BoxDecryptionParams* decrypt_params,
+    AesNI_ErrorDetails* err_details)
+{
+    aesni_aes256_expand_key_(
+        algorithm_params->aes256_key.lo,
+        algorithm_params->aes256_key.hi,
+        &encrypt_params->aes256_encryption_keys);
+    aesni_aes256_derive_decryption_keys_(
+        &encrypt_params->aes256_encryption_keys,
+        &decrypt_params->aes256_decryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_xor_block_aes(
+    AesNI_BoxBlock* dest,
+    const AesNI_BoxBlock* src,
+    AesNI_ErrorDetails* err_details)
+{
+    dest->aes_block = aesni_xor_block128(dest->aes_block, src->aes_block);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_encrypt_aes128(
+    const AesNI_BoxBlock* input,
+    const AesNI_BoxEncryptionParams* params,
+    AesNI_BoxBlock* output,
+    AesNI_ErrorDetails* err_details)
+{
+    output->aes_block = aesni_aes128_encrypt_block_(
+        input->aes_block,
+        &params->aes128_encryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_decrypt_aes128(
+    const AesNI_BoxBlock* input,
+    const AesNI_BoxDecryptionParams* params,
+    AesNI_BoxBlock* output,
+    AesNI_ErrorDetails* err_details)
+{
+    output->aes_block = aesni_aes128_decrypt_block_(
+        input->aes_block,
+        &params->aes128_decryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_encrypt_aes192(
+    const AesNI_BoxBlock* input,
+    const AesNI_BoxEncryptionParams* params,
+    AesNI_BoxBlock* output,
+    AesNI_ErrorDetails* err_details)
+{
+    output->aes_block = aesni_aes192_encrypt_block_(
+        input->aes_block,
+        &params->aes192_encryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_decrypt_aes192(
+    const AesNI_BoxBlock* input,
+    const AesNI_BoxDecryptionParams* params,
+    AesNI_BoxBlock* output,
+    AesNI_ErrorDetails* err_details)
+{
+    output->aes_block = aesni_aes192_decrypt_block_(
+        input->aes_block,
+        &params->aes192_decryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_encrypt_aes256(
+    const AesNI_BoxBlock* input,
+    const AesNI_BoxEncryptionParams* params,
+    AesNI_BoxBlock* output,
+    AesNI_ErrorDetails* err_details)
+{
+    output->aes_block = aesni_aes256_encrypt_block_(
+        input->aes_block,
+        &params->aes256_encryption_keys);
+    return AESNI_SUCCESS;
+}
+
+static __inline AesNI_StatusCode aesni_box_decrypt_aes256(
+    const AesNI_BoxBlock* input,
+    const AesNI_BoxDecryptionParams* params,
+    AesNI_BoxBlock* output,
+    AesNI_ErrorDetails* err_details)
+{
+    output->aes_block = aesni_aes256_decrypt_block_(
+        input->aes_block,
+        &params->aes256_decryption_keys);
+    return AESNI_SUCCESS;
+}
+
+extern AesNI_BoxAlgorithmInterface aesni_box_aes128_iface;
+extern AesNI_BoxAlgorithmInterface aesni_box_aes192_iface;
+extern AesNI_BoxAlgorithmInterface aesni_box_aes256_iface;
+
+#ifdef __cplusplus
+}
+#endif