From ea1ea0224c04753402e0b6472080f0c5d90a7a46 Mon Sep 17 00:00:00 2001
From: wwylele <wwylele@gmail.com>
Date: Sun, 1 Jan 2017 14:58:02 +0200
Subject: HW: add AES engine & implement AES-CCM

---
 src/core/hw/aes/ccm.h | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 src/core/hw/aes/ccm.h

(limited to 'src/core/hw/aes/ccm.h')

diff --git a/src/core/hw/aes/ccm.h b/src/core/hw/aes/ccm.h
new file mode 100644
index 000000000..bf4146e80
--- /dev/null
+++ b/src/core/hw/aes/ccm.h
@@ -0,0 +1,40 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <cstddef>
+#include <vector>
+#include "common/common_types.h"
+
+namespace HW {
+namespace AES {
+
+constexpr size_t CCM_NONCE_SIZE = 12;
+constexpr size_t CCM_MAC_SIZE = 16;
+
+using CCMNonce = std::array<u8, CCM_NONCE_SIZE>;
+
+/**
+ * Encrypts and adds a MAC to the given data using AES-CCM algorithm.
+ * @param pdata The plain text data to encrypt
+ * @param nonce The nonce data to use for encryption
+ * @param slot_id The slot ID of the key to use for encryption
+ * @returns a vector of u8 containing the encrypted data with MAC at the end
+ */
+std::vector<u8> EncryptSignCCM(const std::vector<u8>& pdata, const CCMNonce& nonce, size_t slot_id);
+
+/**
+ * Decrypts and verify the MAC of the given data using AES-CCM algorithm.
+ * @param cipher The cipher text data to decrypt, with MAC at the end to verify
+ * @param nonce The nonce data to use for decryption
+ * @param slot_id The slot ID of the key to use for decryption
+ * @returns a vector of u8 containing the decrypted data; an empty vector if the verification fails
+ */
+std::vector<u8> DecryptVerifyCCM(const std::vector<u8>& cipher, const CCMNonce& nonce,
+                                 size_t slot_id);
+
+} // namespace AES
+} // namespace HW
-- 
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