#include "config.h"
#include "config.h"
#include MBEDTLS_CONFIG_FILE
#include MBEDTLS_CONFIG_FILE
#include <stddef.h>
#include
#include <stdint.h>
#include
#include "platform_util.h"
#include "platform_util.h"
#include "aria_alt.h"
#include "aria_alt.h"
#define MBEDTLS_ARIA_H
#define MBEDTLS_ARIA_ENCRYPT 1 /**< ARIA encryption. */
#define MBEDTLS_ARIA_DECRYPT 0 /**< ARIA decryption. */
#define MBEDTLS_ARIA_BLOCKSIZE 16 /**< ARIA block size in bytes. */
#define MBEDTLS_ARIA_MAX_ROUNDS 16 /**< Maxiumum number of rounds in ARIA. */
#define MBEDTLS_ARIA_MAX_KEYSIZE 32 /**< Maximum size of an ARIA key in bytes. */
#define MBEDTLS_ERR_ARIA_INVALID_KEY_LENGTH MBEDTLS_DEPRECATED_NUMERIC_CONSTANT( -5C )
#define MBEDTLS_ERR_ARIA_BAD_INPUT_DATA -5C /**< Bad input data. */
#define MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH -5E /**< Invalid data input length. */
#define MBEDTLS_ERR_ARIA_FEATURE_UNAVAILABLE -5A /**< Feature not available. For example, an unsupported ARIA key size. */
/* MBEDTLS_ERR_ARIA_FEATURE_UNAVAILABLE is deprecated and should not be used. */
#define MBEDTLS_ERR_ARIA_HW_ACCEL_FAILED -88 /**< ARIA hardware accelerator failed. */
/* MBEDTLS_ERR_ARIA_HW_ACCEL_FAILED is deprecated and should not be used. */
void mbedtls_aria_init( mbedtls_aria_context *ctx );
/** * \brief This function initializes the specified ARIA context. * * It must be the first API called before using * the context. * * \param ctx The ARIA context to initialize. This must not be \c NULL. */
void mbedtls_aria_free( mbedtls_aria_context *ctx );
/** * \brief This function releases and clears the specified ARIA context. * * \param ctx The ARIA context to clear. This may be \c NULL, in which * case this function returns immediately. If it is not \c NULL, * it must point to an initialized ARIA context. */
int mbedtls_aria_setkey_enc( mbedtls_aria_context *ctx,
const unsigned char *key,
unsigned int keybits );
/** * \brief This function sets the encryption key. * * \param ctx The ARIA context to which the key should be bound. * This must be initialized. * \param key The encryption key. This must be a readable buffer * of size \p keybits Bits. * \param keybits The size of \p key in Bits. Valid options are: *
int mbedtls_aria_setkey_dec( mbedtls_aria_context *ctx,
const unsigned char *key,
unsigned int keybits );
/** * \brief This function sets the decryption key. * * \param ctx The ARIA context to which the key should be bound. * This must be initialized. * \param key The decryption key. This must be a readable buffer * of size \p keybits Bits. * \param keybits The size of data passed. Valid options are: *
int mbedtls_aria_crypt_ecb( mbedtls_aria_context *ctx,
const unsigned char input[MBEDTLS_ARIA_BLOCKSIZE],
unsigned char output[MBEDTLS_ARIA_BLOCKSIZE] );
/** * \brief This function performs an ARIA single-block encryption or * decryption operation. * * It performs encryption or decryption (depending on whether * the key was set for encryption on decryption) on the input * data buffer defined in the \p input parameter. * * mbedtls_aria_init(), and either mbedtls_aria_setkey_enc() or * mbedtls_aria_setkey_dec() must be called before the first * call to this API with the same context. * * \param ctx The ARIA context to use for encryption or decryption. * This must be initialized and bound to a key. * \param input The 16-Byte buffer holding the input data. * \param output The 16-Byte buffer holding the output data. * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_aria_crypt_cbc( mbedtls_aria_context *ctx,
int mode,
size_t length,
unsigned char iv[MBEDTLS_ARIA_BLOCKSIZE],
const unsigned char *input,
unsigned char *output );
/** * \brief This function performs an ARIA-CBC encryption or decryption operation * on full blocks. * * It performs the operation defined in the \p mode * parameter (encrypt/decrypt), on the input data buffer defined in * the \p input parameter. * * It can be called as many times as needed, until all the input * data is processed. mbedtls_aria_init(), and either * mbedtls_aria_setkey_enc() or mbedtls_aria_setkey_dec() must be called * before the first call to this API with the same context. * * \note This function operates on aligned blocks, that is, the input size * must be a multiple of the ARIA block size of 16 Bytes. * * \note Upon exit, the content of the IV is updated so that you can * call the same function again on the next * block(s) of data and get the same result as if it was * encrypted in one call. This allows a "streaming" usage. * If you need to retain the contents of the IV, you should * either save it manually or use the cipher module instead. * * * \param ctx The ARIA context to use for encryption or decryption. * This must be initialized and bound to a key. * \param mode The mode of operation. This must be either * #MBEDTLS_ARIA_ENCRYPT for encryption, or * #MBEDTLS_ARIA_DECRYPT for decryption. * \param length The length of the input data in Bytes. This must be a * multiple of the block size (16 Bytes). * \param iv Initialization vector (updated after use). * This must be a readable buffer of size 16 Bytes. * \param input The buffer holding the input data. This must * be a readable buffer of length \p length Bytes. * \param output The buffer holding the output data. This must * be a writable buffer of length \p length Bytes. * * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx,
int mode,
size_t length,
size_t *iv_off,
unsigned char iv[MBEDTLS_ARIA_BLOCKSIZE],
const unsigned char *input,
unsigned char *output );
/** * \brief This function performs an ARIA-CFB128 encryption or decryption * operation. * * It performs the operation defined in the \p mode * parameter (encrypt or decrypt), on the input data buffer * defined in the \p input parameter. * * For CFB, you must set up the context with mbedtls_aria_setkey_enc(), * regardless of whether you are performing an encryption or decryption * operation, that is, regardless of the \p mode parameter. This is * because CFB mode uses the same key schedule for encryption and * decryption. * * \note Upon exit, the content of the IV is updated so that you can * call the same function again on the next * block(s) of data and get the same result as if it was * encrypted in one call. This allows a "streaming" usage. * If you need to retain the contents of the * IV, you must either save it manually or use the cipher * module instead. * * * \param ctx The ARIA context to use for encryption or decryption. * This must be initialized and bound to a key. * \param mode The mode of operation. This must be either * #MBEDTLS_ARIA_ENCRYPT for encryption, or * #MBEDTLS_ARIA_DECRYPT for decryption. * \param length The length of the input data \p input in Bytes. * \param iv_off The offset in IV (updated after use). * This must not be larger than 15. * \param iv The initialization vector (updated after use). * This must be a readable buffer of size 16 Bytes. * \param input The buffer holding the input data. This must * be a readable buffer of length \p length Bytes. * \param output The buffer holding the output data. This must * be a writable buffer of length \p length Bytes. * * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_aria_crypt_ctr( mbedtls_aria_context *ctx,
size_t length,
size_t *nc_off,
unsigned char nonce_counter[MBEDTLS_ARIA_BLOCKSIZE],
unsigned char stream_block[MBEDTLS_ARIA_BLOCKSIZE],
const unsigned char *input,
unsigned char *output );
/** * \brief This function performs an ARIA-CTR encryption or decryption * operation. * * This function performs the operation defined in the \p mode * parameter (encrypt/decrypt), on the input data buffer * defined in the \p input parameter. * * Due to the nature of CTR, you must use the same key schedule * for both encryption and decryption operations. Therefore, you * must use the context initialized with mbedtls_aria_setkey_enc() * for both #MBEDTLS_ARIA_ENCRYPT and #MBEDTLS_ARIA_DECRYPT. * * \warning You must never reuse a nonce value with the same key. Doing so * would void the encryption for the two messages encrypted with * the same nonce and key. * * There are two common strategies for managing nonces with CTR: * * 1. You can handle everything as a single message processed over * successive calls to this function. In that case, you want to * set \p nonce_counter and \p nc_off to 0 for the first call, and * then preserve the values of \p nonce_counter, \p nc_off and \p * stream_block across calls to this function as they will be * updated by this function. * * With this strategy, you must not encrypt more than 2**128 * blocks of data with the same key. * * 2. You can encrypt separate messages by dividing the \p * nonce_counter buffer in two areas: the first one used for a * per-message nonce, handled by yourself, and the second one * updated by this function internally. * * For example, you might reserve the first 12 bytes for the * per-message nonce, and the last 4 bytes for internal use. In that * case, before calling this function on a new message you need to * set the first 12 bytes of \p nonce_counter to your chosen nonce * value, the last 4 to 0, and \p nc_off to 0 (which will cause \p * stream_block to be ignored). That way, you can encrypt at most * 2**96 messages of up to 2**32 blocks each with the same key. * * The per-message nonce (or information sufficient to reconstruct * it) needs to be communicated with the ciphertext and must be unique. * The recommended way to ensure uniqueness is to use a message * counter. An alternative is to generate random nonces, but this * limits the number of messages that can be securely encrypted: * for example, with 96-bit random nonces, you should not encrypt * more than 2**32 messages with the same key. * * Note that for both stategies, sizes are measured in blocks and * that an ARIA block is 16 bytes. * * \warning Upon return, \p stream_block contains sensitive data. Its * content must not be written to insecure storage and should be * securely discarded as soon as it's no longer needed. * * \param ctx The ARIA context to use for encryption or decryption. * This must be initialized and bound to a key. * \param length The length of the input data \p input in Bytes. * \param nc_off The offset in Bytes in the current \p stream_block, * for resuming within the current cipher stream. The * offset pointer should be \c 0 at the start of a * stream. This must not be larger than \c 15 Bytes. * \param nonce_counter The 128-bit nonce and counter. This must point to * a read/write buffer of length \c 16 bytes. * \param stream_block The saved stream block for resuming. This must * point to a read/write buffer of length \c 16 bytes. * This is overwritten by the function. * \param input The buffer holding the input data. This must * be a readable buffer of length \p length Bytes. * \param output The buffer holding the output data. This must * be a writable buffer of length \p length Bytes. * * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_aria_self_test( int verbose );
/** * \brief Checkup routine. * * \return \c 0 on success, or \c 1 on failure. */
typedef struct mbedtls_aria_context
{
unsigned char nr; /*!< The number of rounds (12, 14 or 16) */
/*! The ARIA round keys. */
uint32_t rk[MBEDTLS_ARIA_MAX_ROUNDS + 1][MBEDTLS_ARIA_BLOCKSIZE / 4];
}
mbedtls_aria_context;
/** * \brief The ARIA context-type definition. */