Release Mbed Crypto 0.1.0a
diff --git a/include/mbedcrypto/blowfish.h b/include/mbedcrypto/blowfish.h
new file mode 100644
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+++ b/include/mbedcrypto/blowfish.h
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+/**
+ * \file blowfish.h
+ *
+ * \brief Blowfish block cipher
+ */
+/*
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is part of Mbed Crypto (https://tls.mbed.org)
+ */
+#ifndef MBEDCRYPTO_BLOWFISH_H
+#define MBEDCRYPTO_BLOWFISH_H
+
+#if !defined(MBEDCRYPTO_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDCRYPTO_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define MBEDCRYPTO_BLOWFISH_ENCRYPT 1
+#define MBEDCRYPTO_BLOWFISH_DECRYPT 0
+#define MBEDCRYPTO_BLOWFISH_MAX_KEY_BITS 448
+#define MBEDCRYPTO_BLOWFISH_MIN_KEY_BITS 32
+#define MBEDCRYPTO_BLOWFISH_ROUNDS 16 /**< Rounds to use. When increasing this value, make sure to extend the initialisation vectors */
+#define MBEDCRYPTO_BLOWFISH_BLOCKSIZE 8 /* Blowfish uses 64 bit blocks */
+
+#define MBEDCRYPTO_ERR_BLOWFISH_INVALID_KEY_LENGTH -0x0016 /**< Invalid key length. */
+#define MBEDCRYPTO_ERR_BLOWFISH_HW_ACCEL_FAILED -0x0017 /**< Blowfish hardware accelerator failed. */
+#define MBEDCRYPTO_ERR_BLOWFISH_INVALID_INPUT_LENGTH -0x0018 /**< Invalid data input length. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !defined(MBEDCRYPTO_BLOWFISH_ALT)
+// Regular implementation
+//
+
+/**
+ * \brief Blowfish context structure
+ */
+typedef struct
+{
+ uint32_t P[MBEDCRYPTO_BLOWFISH_ROUNDS + 2]; /*!< Blowfish round keys */
+ uint32_t S[4][256]; /*!< key dependent S-boxes */
+}
+mbedcrypto_blowfish_context;
+
+#else /* MBEDCRYPTO_BLOWFISH_ALT */
+#include "blowfish_alt.h"
+#endif /* MBEDCRYPTO_BLOWFISH_ALT */
+
+/**
+ * \brief Initialize Blowfish context
+ *
+ * \param ctx Blowfish context to be initialized
+ */
+void mbedcrypto_blowfish_init( mbedcrypto_blowfish_context *ctx );
+
+/**
+ * \brief Clear Blowfish context
+ *
+ * \param ctx Blowfish context to be cleared
+ */
+void mbedcrypto_blowfish_free( mbedcrypto_blowfish_context *ctx );
+
+/**
+ * \brief Blowfish key schedule
+ *
+ * \param ctx Blowfish context to be initialized
+ * \param key encryption key
+ * \param keybits must be between 32 and 448 bits
+ *
+ * \return 0 if successful, or MBEDCRYPTO_ERR_BLOWFISH_INVALID_KEY_LENGTH
+ */
+int mbedcrypto_blowfish_setkey( mbedcrypto_blowfish_context *ctx, const unsigned char *key,
+ unsigned int keybits );
+
+/**
+ * \brief Blowfish-ECB block encryption/decryption
+ *
+ * \param ctx Blowfish context
+ * \param mode MBEDCRYPTO_BLOWFISH_ENCRYPT or MBEDCRYPTO_BLOWFISH_DECRYPT
+ * \param input 8-byte input block
+ * \param output 8-byte output block
+ *
+ * \return 0 if successful
+ */
+int mbedcrypto_blowfish_crypt_ecb( mbedcrypto_blowfish_context *ctx,
+ int mode,
+ const unsigned char input[MBEDCRYPTO_BLOWFISH_BLOCKSIZE],
+ unsigned char output[MBEDCRYPTO_BLOWFISH_BLOCKSIZE] );
+
+#if defined(MBEDCRYPTO_CIPHER_MODE_CBC)
+/**
+ * \brief Blowfish-CBC buffer encryption/decryption
+ * Length should be a multiple of the block
+ * size (8 bytes)
+ *
+ * \note Upon exit, the content of the IV is updated so that you can
+ * call the function same function again on the following
+ * block(s) of data and get the same result as if it was
+ * encrypted in one call. This allows a "streaming" usage.
+ * If on the other hand you need to retain the contents of the
+ * IV, you should either save it manually or use the cipher
+ * module instead.
+ *
+ * \param ctx Blowfish context
+ * \param mode MBEDCRYPTO_BLOWFISH_ENCRYPT or MBEDCRYPTO_BLOWFISH_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful, or
+ * MBEDCRYPTO_ERR_BLOWFISH_INVALID_INPUT_LENGTH
+ */
+int mbedcrypto_blowfish_crypt_cbc( mbedcrypto_blowfish_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[MBEDCRYPTO_BLOWFISH_BLOCKSIZE],
+ const unsigned char *input,
+ unsigned char *output );
+#endif /* MBEDCRYPTO_CIPHER_MODE_CBC */
+
+#if defined(MBEDCRYPTO_CIPHER_MODE_CFB)
+/**
+ * \brief Blowfish CFB buffer encryption/decryption.
+ *
+ * \note Upon exit, the content of the IV is updated so that you can
+ * call the function same function again on the following
+ * block(s) of data and get the same result as if it was
+ * encrypted in one call. This allows a "streaming" usage.
+ * If on the other hand you need to retain the contents of the
+ * IV, you should either save it manually or use the cipher
+ * module instead.
+ *
+ * \param ctx Blowfish context
+ * \param mode MBEDCRYPTO_BLOWFISH_ENCRYPT or MBEDCRYPTO_BLOWFISH_DECRYPT
+ * \param length length of the input data
+ * \param iv_off offset in IV (updated after use)
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful
+ */
+int mbedcrypto_blowfish_crypt_cfb64( mbedcrypto_blowfish_context *ctx,
+ int mode,
+ size_t length,
+ size_t *iv_off,
+ unsigned char iv[MBEDCRYPTO_BLOWFISH_BLOCKSIZE],
+ const unsigned char *input,
+ unsigned char *output );
+#endif /*MBEDCRYPTO_CIPHER_MODE_CFB */
+
+#if defined(MBEDCRYPTO_CIPHER_MODE_CTR)
+/**
+ * \brief Blowfish-CTR buffer encryption/decryption
+ *
+ * Warning: You have to keep the maximum use of your counter in mind!
+ *
+ * \param ctx Blowfish context
+ * \param length The length of the data
+ * \param nc_off The offset in the current stream_block (for resuming
+ * within current cipher stream). The offset pointer to
+ * should be 0 at the start of a stream.
+ * \param nonce_counter The 64-bit nonce and counter.
+ * \param stream_block The saved stream-block for resuming. Is overwritten
+ * by the function.
+ * \param input The input data stream
+ * \param output The output data stream
+ *
+ * \return 0 if successful
+ */
+int mbedcrypto_blowfish_crypt_ctr( mbedcrypto_blowfish_context *ctx,
+ size_t length,
+ size_t *nc_off,
+ unsigned char nonce_counter[MBEDCRYPTO_BLOWFISH_BLOCKSIZE],
+ unsigned char stream_block[MBEDCRYPTO_BLOWFISH_BLOCKSIZE],
+ const unsigned char *input,
+ unsigned char *output );
+#endif /* MBEDCRYPTO_CIPHER_MODE_CTR */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* blowfish.h */