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Diff: TARGET_KL82Z/TOOLCHAIN_GCC_ARM/fsl_ltc.h
- Revision:
- 171:3a7713b1edbc
- Parent:
- 145:64910690c574
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_KL82Z/TOOLCHAIN_GCC_ARM/fsl_ltc.h Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,1575 @@
+/*
+ * Copyright (c) 2015-2016, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_LTC_H_
+#define _FSL_LTC_H_
+
+#include "fsl_common.h"
+
+/*******************************************************************************
+ * Definitions
+ *******************************************************************************/
+
+/*!
+ * @addtogroup ltc
+ * @{
+ */
+/*! @name Driver version */
+/*@{*/
+/*! @brief LTC driver version. Version 2.0.1.
+ *
+ * Current version: 2.0.1
+ *
+ * Change log:
+ * - Version 2.0.1
+ * - fixed warning during g++ compilation
+ */
+#define FSL_LTC_DRIVER_VERSION (MAKE_VERSION(2, 0, 1))
+/*@}*/
+/*! @} */
+
+/*******************************************************************************
+ * AES Definitions
+ *******************************************************************************/
+/*!
+ * @addtogroup ltc_driver_aes
+ * @{
+ */
+/*! AES block size in bytes */
+#define LTC_AES_BLOCK_SIZE 16
+/*! AES Input Vector size in bytes */
+#define LTC_AES_IV_SIZE 16
+
+/*! @brief Type of AES key for ECB and CBC decrypt operations. */
+typedef enum _ltc_aes_key_t
+{
+ kLTC_EncryptKey = 0U, /*!< Input key is an encrypt key */
+ kLTC_DecryptKey = 1U, /*!< Input key is a decrypt key */
+} ltc_aes_key_t;
+
+/*!
+ *@}
+ */
+
+/*******************************************************************************
+ * DES Definitions
+ *******************************************************************************/
+/*!
+ * @addtogroup ltc_driver_des
+ * @{
+ */
+
+/*! @brief LTC DES key size - 64 bits. */
+#define LTC_DES_KEY_SIZE 8
+
+/*! @brief LTC DES IV size - 8 bytes */
+#define LTC_DES_IV_SIZE 8
+
+/*!
+ *@}
+ */
+
+/*******************************************************************************
+ * HASH Definitions
+ ******************************************************************************/
+/*!
+ * @addtogroup ltc_driver_hash
+ * @{
+ */
+/*! Supported cryptographic block cipher functions for HASH creation */
+typedef enum _ltc_hash_algo_t
+{
+ kLTC_XcbcMac = 0, /*!< XCBC-MAC (AES engine) */
+ kLTC_Cmac, /*!< CMAC (AES engine) */
+#if defined(FSL_FEATURE_LTC_HAS_SHA) && FSL_FEATURE_LTC_HAS_SHA
+ kLTC_Sha1, /*!< SHA_1 (MDHA engine) */
+ kLTC_Sha224, /*!< SHA_224 (MDHA engine) */
+ kLTC_Sha256, /*!< SHA_256 (MDHA engine) */
+#endif /* FSL_FEATURE_LTC_HAS_SHA */
+} ltc_hash_algo_t;
+
+/*! @brief LTC HASH Context size. */
+#if defined(FSL_FEATURE_LTC_HAS_SHA) && FSL_FEATURE_LTC_HAS_SHA
+#define LTC_HASH_CTX_SIZE 41
+#else
+#define LTC_HASH_CTX_SIZE 29
+#endif /* FSL_FEATURE_LTC_HAS_SHA */
+
+/*! @brief Storage type used to save hash context. */
+typedef uint32_t ltc_hash_ctx_t[LTC_HASH_CTX_SIZE];
+
+/*!
+ *@}
+ */
+/*******************************************************************************
+ * PKHA Definitions
+ ******************************************************************************/
+/*!
+ * @addtogroup ltc_driver_pkha
+ * @{
+ */
+/*! PKHA ECC point structure */
+typedef struct _ltc_pkha_ecc_point_t
+{
+ uint8_t *X; /*!< X coordinate (affine) */
+ uint8_t *Y; /*!< Y coordinate (affine) */
+} ltc_pkha_ecc_point_t;
+
+/*! @brief Use of timing equalized version of a PKHA function. */
+typedef enum _ltc_pkha_timing_t
+{
+ kLTC_PKHA_NoTimingEqualized = 0U, /*!< Normal version of a PKHA operation */
+ kLTC_PKHA_TimingEqualized = 1U /*!< Timing-equalized version of a PKHA operation */
+} ltc_pkha_timing_t;
+
+/*! @brief Integer vs binary polynomial arithmetic selection. */
+typedef enum _ltc_pkha_f2m_t
+{
+ kLTC_PKHA_IntegerArith = 0U, /*!< Use integer arithmetic */
+ kLTC_PKHA_F2mArith = 1U /*!< Use binary polynomial arithmetic */
+} ltc_pkha_f2m_t;
+
+/*! @brief Montgomery or normal PKHA input format. */
+typedef enum _ltc_pkha_montgomery_form_t
+{
+ kLTC_PKHA_NormalValue = 0U, /*!< PKHA number is normal integer */
+ kLTC_PKHA_MontgomeryFormat = 1U /*!< PKHA number is in montgomery format */
+} ltc_pkha_montgomery_form_t;
+
+/*!
+ *@}
+ */
+
+/*******************************************************************************
+ * API
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @addtogroup ltc
+ * @{
+ */
+
+/*!
+ * @brief Initializes the LTC driver.
+ * This function initializes the LTC driver.
+ * @param base LTC peripheral base address
+ */
+void LTC_Init(LTC_Type *base);
+
+/*!
+ * @brief Deinitializes the LTC driver.
+ * This function deinitializes the LTC driver.
+ * @param base LTC peripheral base address
+ */
+void LTC_Deinit(LTC_Type *base);
+
+#if defined(FSL_FEATURE_LTC_HAS_DPAMS) && FSL_FEATURE_LTC_HAS_DPAMS
+/*!
+ * @brief Sets the DPA Mask Seed register.
+ *
+ * The DPA Mask Seed register reseeds the mask that provides resistance against DPA (differential power analysis)
+ * attacks on AES or DES keys.
+ *
+ * Differential Power Analysis Mask (DPA) resistance uses a randomly changing mask that introduces
+ * "noise" into the power consumed by the AES or DES. This reduces the signal-to-noise ratio that differential
+ * power analysis attacks use to "guess" bits of the key. This randomly changing mask should be
+ * seeded at POR, and continues to provide DPA resistance from that point on. However, to provide even more
+ * DPA protection it is recommended that the DPA mask be reseeded after every 50,000 blocks have
+ * been processed. At that time, software can opt to write a new seed (preferably obtained from an RNG)
+ * into the DPA Mask Seed register (DPAMS), or software can opt to provide the new seed earlier or
+ * later, or not at all. DPA resistance continues even if the DPA mask is never reseeded.
+ *
+ * @param base LTC peripheral base address
+ * @param mask The DPA mask seed.
+ */
+void LTC_SetDpaMaskSeed(LTC_Type *base, uint32_t mask);
+#endif /* FSL_FEATURE_LTC_HAS_DPAMS */
+
+/*!
+ *@}
+ */
+
+/*******************************************************************************
+ * AES API
+ ******************************************************************************/
+
+/*!
+ * @addtogroup ltc_driver_aes
+ * @{
+ */
+
+/*!
+ * @brief Transforms an AES encrypt key (forward AES) into the decrypt key (inverse AES).
+ *
+ * Transforms the AES encrypt key (forward AES) into the decrypt key (inverse AES).
+ * The key derived by this function can be used as a direct load decrypt key
+ * for AES ECB and CBC decryption operations (keyType argument).
+ *
+ * @param base LTC peripheral base address
+ * @param encryptKey Input key for decrypt key transformation
+ * @param[out] decryptKey Output key, the decrypt form of the AES key.
+ * @param keySize Size of the input key and output key in bytes. Must be 16, 24, or 32.
+ * @return Status from key generation operation
+ */
+status_t LTC_AES_GenerateDecryptKey(LTC_Type *base, const uint8_t *encryptKey, uint8_t *decryptKey, uint32_t keySize);
+
+/*!
+ * @brief Encrypts AES using the ECB block mode.
+ *
+ * Encrypts AES using the ECB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plain text to encrypt
+ * @param[out] ciphertext Output cipher text
+ * @param size Size of input and output data in bytes. Must be multiple of 16 bytes.
+ * @param key Input key to use for encryption
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @return Status from encrypt operation
+ */
+status_t LTC_AES_EncryptEcb(
+ LTC_Type *base, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t *key, uint32_t keySize);
+
+/*!
+ * @brief Decrypts AES using ECB block mode.
+ *
+ * Decrypts AES using ECB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input cipher text to decrypt
+ * @param[out] plaintext Output plain text
+ * @param size Size of input and output data in bytes. Must be multiple of 16 bytes.
+ * @param key Input key.
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @param keyType Input type of the key (allows to directly load decrypt key for AES ECB decrypt operation.)
+ * @return Status from decrypt operation
+ */
+status_t LTC_AES_DecryptEcb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t *key,
+ uint32_t keySize,
+ ltc_aes_key_t keyType);
+
+/*!
+ * @brief Encrypts AES using CBC block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plain text to encrypt
+ * @param[out] ciphertext Output cipher text
+ * @param size Size of input and output data in bytes. Must be multiple of 16 bytes.
+ * @param iv Input initial vector to combine with the first input block.
+ * @param key Input key to use for encryption
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @return Status from encrypt operation
+ */
+status_t LTC_AES_EncryptCbc(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_AES_IV_SIZE],
+ const uint8_t *key,
+ uint32_t keySize);
+
+/*!
+ * @brief Decrypts AES using CBC block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input cipher text to decrypt
+ * @param[out] plaintext Output plain text
+ * @param size Size of input and output data in bytes. Must be multiple of 16 bytes.
+ * @param iv Input initial vector to combine with the first input block.
+ * @param key Input key to use for decryption
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @param keyType Input type of the key (allows to directly load decrypt key for AES CBC decrypt operation.)
+ * @return Status from decrypt operation
+ */
+status_t LTC_AES_DecryptCbc(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_AES_IV_SIZE],
+ const uint8_t *key,
+ uint32_t keySize,
+ ltc_aes_key_t keyType);
+
+/*!
+ * @brief Encrypts or decrypts AES using CTR block mode.
+ *
+ * Encrypts or decrypts AES using CTR block mode.
+ * AES CTR mode uses only forward AES cipher and same algorithm for encryption and decryption.
+ * The only difference between encryption and decryption is that, for encryption, the input argument
+ * is plain text and the output argument is cipher text. For decryption, the input argument is cipher text
+ * and the output argument is plain text.
+ *
+ * @param base LTC peripheral base address
+ * @param input Input data for CTR block mode
+ * @param[out] output Output data for CTR block mode
+ * @param size Size of input and output data in bytes
+ * @param[in,out] counter Input counter (updates on return)
+ * @param key Input key to use for forward AES cipher
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @param[out] counterlast Output cipher of last counter, for chained CTR calls. NULL can be passed if chained calls are
+ * not used.
+ * @param[out] szLeft Output number of bytes in left unused in counterlast block. NULL can be passed if chained calls
+ * are not used.
+ * @return Status from encrypt operation
+ */
+status_t LTC_AES_CryptCtr(LTC_Type *base,
+ const uint8_t *input,
+ uint8_t *output,
+ uint32_t size,
+ uint8_t counter[LTC_AES_BLOCK_SIZE],
+ const uint8_t *key,
+ uint32_t keySize,
+ uint8_t counterlast[LTC_AES_BLOCK_SIZE],
+ uint32_t *szLeft);
+
+/*! AES CTR decrypt is mapped to the AES CTR generic operation */
+#define LTC_AES_DecryptCtr(base, input, output, size, counter, key, keySize, counterlast, szLeft) \
+ LTC_AES_CryptCtr(base, input, output, size, counter, key, keySize, counterlast, szLeft)
+
+/*! AES CTR encrypt is mapped to the AES CTR generic operation */
+#define LTC_AES_EncryptCtr(base, input, output, size, counter, key, keySize, counterlast, szLeft) \
+ LTC_AES_CryptCtr(base, input, output, size, counter, key, keySize, counterlast, szLeft)
+
+#if defined(FSL_FEATURE_LTC_HAS_GCM) && FSL_FEATURE_LTC_HAS_GCM
+/*!
+ * @brief Encrypts AES and tags using GCM block mode.
+ *
+ * Encrypts AES and optionally tags using GCM block mode. If plaintext is NULL, only the GHASH is calculated and output
+ * in the 'tag' field.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plain text to encrypt
+ * @param[out] ciphertext Output cipher text.
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial vector
+ * @param ivSize Size of the IV
+ * @param aad Input additional authentication data
+ * @param aadSize Input size in bytes of AAD
+ * @param key Input key to use for encryption
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @param[out] tag Output hash tag. Set to NULL to skip tag processing.
+ * @param tagSize Input size of the tag to generate, in bytes. Must be 4,8,12,13,14,15 or 16.
+ * @return Status from encrypt operation
+ */
+status_t LTC_AES_EncryptTagGcm(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t *iv,
+ uint32_t ivSize,
+ const uint8_t *aad,
+ uint32_t aadSize,
+ const uint8_t *key,
+ uint32_t keySize,
+ uint8_t *tag,
+ uint32_t tagSize);
+
+/*!
+ * @brief Decrypts AES and authenticates using GCM block mode.
+ *
+ * Decrypts AES and optionally authenticates using GCM block mode. If ciphertext is NULL, only the GHASH is calculated
+ * and compared with the received GHASH in 'tag' field.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input cipher text to decrypt
+ * @param[out] plaintext Output plain text.
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial vector
+ * @param ivSize Size of the IV
+ * @param aad Input additional authentication data
+ * @param aadSize Input size in bytes of AAD
+ * @param key Input key to use for encryption
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @param tag Input hash tag to compare. Set to NULL to skip tag processing.
+ * @param tagSize Input size of the tag, in bytes. Must be 4, 8, 12, 13, 14, 15, or 16.
+ * @return Status from decrypt operation
+ */
+status_t LTC_AES_DecryptTagGcm(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t *iv,
+ uint32_t ivSize,
+ const uint8_t *aad,
+ uint32_t aadSize,
+ const uint8_t *key,
+ uint32_t keySize,
+ const uint8_t *tag,
+ uint32_t tagSize);
+#endif /* FSL_FEATURE_LTC_HAS_GCM */
+
+/*!
+ * @brief Encrypts AES and tags using CCM block mode.
+ *
+ * Encrypts AES and optionally tags using CCM block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plain text to encrypt
+ * @param[out] ciphertext Output cipher text.
+ * @param size Size of input and output data in bytes. Zero means authentication only.
+ * @param iv Nonce
+ * @param ivSize Length of the Nonce in bytes. Must be 7, 8, 9, 10, 11, 12, or 13.
+ * @param aad Input additional authentication data. Can be NULL if aadSize is zero.
+ * @param aadSize Input size in bytes of AAD. Zero means data mode only (authentication skipped).
+ * @param key Input key to use for encryption
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @param[out] tag Generated output tag. Set to NULL to skip tag processing.
+ * @param tagSize Input size of the tag to generate, in bytes. Must be 4, 6, 8, 10, 12, 14, or 16.
+ * @return Status from encrypt operation
+ */
+status_t LTC_AES_EncryptTagCcm(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t *iv,
+ uint32_t ivSize,
+ const uint8_t *aad,
+ uint32_t aadSize,
+ const uint8_t *key,
+ uint32_t keySize,
+ uint8_t *tag,
+ uint32_t tagSize);
+
+/*!
+ * @brief Decrypts AES and authenticates using CCM block mode.
+ *
+ * Decrypts AES and optionally authenticates using CCM block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input cipher text to decrypt
+ * @param[out] plaintext Output plain text.
+ * @param size Size of input and output data in bytes. Zero means authentication only.
+ * @param iv Nonce
+ * @param ivSize Length of the Nonce in bytes. Must be 7, 8, 9, 10, 11, 12, or 13.
+ * @param aad Input additional authentication data. Can be NULL if aadSize is zero.
+ * @param aadSize Input size in bytes of AAD. Zero means data mode only (authentication skipped).
+ * @param key Input key to use for decryption
+ * @param keySize Size of the input key, in bytes. Must be 16, 24, or 32.
+ * @param tag Received tag. Set to NULL to skip tag processing.
+ * @param tagSize Input size of the received tag to compare with the computed tag, in bytes. Must be 4, 6, 8, 10, 12,
+ * 14, or 16.
+ * @return Status from decrypt operation
+ */
+status_t LTC_AES_DecryptTagCcm(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t *iv,
+ uint32_t ivSize,
+ const uint8_t *aad,
+ uint32_t aadSize,
+ const uint8_t *key,
+ uint32_t keySize,
+ const uint8_t *tag,
+ uint32_t tagSize);
+
+/*!
+ *@}
+ */
+
+/*******************************************************************************
+ * DES API
+ ******************************************************************************/
+/*!
+ * @addtogroup ltc_driver_des
+ * @{
+ */
+/*!
+ * @brief Encrypts DES using ECB block mode.
+ *
+ * Encrypts DES using ECB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes. Must be multiple of 8 bytes.
+ * @param key Input key to use for encryption
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_EncryptEcb(
+ LTC_Type *base, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts DES using ECB block mode.
+ *
+ * Decrypts DES using ECB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes. Must be multiple of 8 bytes.
+ * @param key Input key to use for decryption
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_DecryptEcb(
+ LTC_Type *base, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts DES using CBC block mode.
+ *
+ * Encrypts DES using CBC block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Ouput ciphertext
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial vector to combine with the first plaintext block.
+ * The iv does not need to be secret, but it must be unpredictable.
+ * @param key Input key to use for encryption
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_EncryptCbc(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts DES using CBC block mode.
+ *
+ * Decrypts DES using CBC block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input data in bytes
+ * @param iv Input initial vector to combine with the first plaintext block.
+ * The iv does not need to be secret, but it must be unpredictable.
+ * @param key Input key to use for decryption
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_DecryptCbc(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts DES using CFB block mode.
+ *
+ * Encrypts DES using CFB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param size Size of input data in bytes
+ * @param iv Input initial block.
+ * @param key Input key to use for encryption
+ * @param[out] ciphertext Output ciphertext
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_EncryptCfb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts DES using CFB block mode.
+ *
+ * Decrypts DES using CFB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial block.
+ * @param key Input key to use for decryption
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_DecryptCfb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts DES using OFB block mode.
+ *
+ * Encrypts DES using OFB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes
+ * @param iv Input unique input vector. The OFB mode requires that the IV be unique
+ * for each execution of the mode under the given key.
+ * @param key Input key to use for encryption
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_EncryptOfb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts DES using OFB block mode.
+ *
+ * Decrypts DES using OFB block mode.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes. Must be multiple of 8 bytes.
+ * @param iv Input unique input vector. The OFB mode requires that the IV be unique
+ * for each execution of the mode under the given key.
+ * @param key Input key to use for decryption
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES_DecryptOfb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using ECB block mode with two keys.
+ *
+ * Encrypts triple DES using ECB block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes. Must be multiple of 8 bytes.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_EncryptEcb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using ECB block mode with two keys.
+ *
+ * Decrypts triple DES using ECB block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes. Must be multiple of 8 bytes.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_DecryptEcb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using CBC block mode with two keys.
+ *
+ * Encrypts triple DES using CBC block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial vector to combine with the first plaintext block.
+ * The iv does not need to be secret, but it must be unpredictable.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_EncryptCbc(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using CBC block mode with two keys.
+ *
+ * Decrypts triple DES using CBC block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial vector to combine with the first plaintext block.
+ * The iv does not need to be secret, but it must be unpredictable.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_DecryptCbc(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using CFB block mode with two keys.
+ *
+ * Encrypts triple DES using CFB block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial block.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_EncryptCfb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using CFB block mode with two keys.
+ *
+ * Decrypts triple DES using CFB block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial block.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_DecryptCfb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using OFB block mode with two keys.
+ *
+ * Encrypts triple DES using OFB block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes
+ * @param iv Input unique input vector. The OFB mode requires that the IV be unique
+ * for each execution of the mode under the given key.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_EncryptOfb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using OFB block mode with two keys.
+ *
+ * Decrypts triple DES using OFB block mode with two keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes
+ * @param iv Input unique input vector. The OFB mode requires that the IV be unique
+ * for each execution of the mode under the given key.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES2_DecryptOfb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using ECB block mode with three keys.
+ *
+ * Encrypts triple DES using ECB block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes. Must be multiple of 8 bytes.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_EncryptEcb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using ECB block mode with three keys.
+ *
+ * Decrypts triple DES using ECB block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes. Must be multiple of 8 bytes.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_DecryptEcb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using CBC block mode with three keys.
+ *
+ * Encrypts triple DES using CBC block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input data in bytes
+ * @param iv Input initial vector to combine with the first plaintext block.
+ * The iv does not need to be secret, but it must be unpredictable.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_EncryptCbc(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using CBC block mode with three keys.
+ *
+ * Decrypts triple DES using CBC block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes
+ * @param iv Input initial vector to combine with the first plaintext block.
+ * The iv does not need to be secret, but it must be unpredictable.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_DecryptCbc(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using CFB block mode with three keys.
+ *
+ * Encrypts triple DES using CFB block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and ouput data in bytes
+ * @param iv Input initial block.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_EncryptCfb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using CFB block mode with three keys.
+ *
+ * Decrypts triple DES using CFB block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input data in bytes
+ * @param iv Input initial block.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_DecryptCfb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Encrypts triple DES using OFB block mode with three keys.
+ *
+ * Encrypts triple DES using OFB block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param plaintext Input plaintext to encrypt
+ * @param[out] ciphertext Output ciphertext
+ * @param size Size of input and output data in bytes
+ * @param iv Input unique input vector. The OFB mode requires that the IV be unique
+ * for each execution of the mode under the given key.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_EncryptOfb(LTC_Type *base,
+ const uint8_t *plaintext,
+ uint8_t *ciphertext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ * @brief Decrypts triple DES using OFB block mode with three keys.
+ *
+ * Decrypts triple DES using OFB block mode with three keys.
+ *
+ * @param base LTC peripheral base address
+ * @param ciphertext Input ciphertext to decrypt
+ * @param[out] plaintext Output plaintext
+ * @param size Size of input and output data in bytes
+ * @param iv Input unique input vector. The OFB mode requires that the IV be unique
+ * for each execution of the mode under the given key.
+ * @param key1 First input key for key bundle
+ * @param key2 Second input key for key bundle
+ * @param key3 Third input key for key bundle
+ * @return Status from encrypt/decrypt operation
+ */
+status_t LTC_DES3_DecryptOfb(LTC_Type *base,
+ const uint8_t *ciphertext,
+ uint8_t *plaintext,
+ uint32_t size,
+ const uint8_t iv[LTC_DES_IV_SIZE],
+ const uint8_t key1[LTC_DES_KEY_SIZE],
+ const uint8_t key2[LTC_DES_KEY_SIZE],
+ const uint8_t key3[LTC_DES_KEY_SIZE]);
+
+/*!
+ *@}
+ */
+
+/*******************************************************************************
+ * HASH API
+ ******************************************************************************/
+
+/*!
+ * @addtogroup ltc_driver_hash
+ * @{
+ */
+/*!
+ * @brief Initialize HASH context
+ *
+ * This function initialize the HASH.
+ * Key shall be supplied if the underlaying algoritm is AES XCBC-MAC or CMAC.
+ * Key shall be NULL if the underlaying algoritm is SHA.
+ *
+ * For XCBC-MAC, the key length must be 16. For CMAC, the key length can be
+ * the AES key lengths supported by AES engine. For MDHA the key length argument
+ * is ignored.
+ *
+ * @param base LTC peripheral base address
+ * @param[out] ctx Output hash context
+ * @param algo Underlaying algorithm to use for hash computation.
+ * @param key Input key (NULL if underlaying algorithm is SHA)
+ * @param keySize Size of input key in bytes
+ * @return Status of initialization
+ */
+status_t LTC_HASH_Init(LTC_Type *base, ltc_hash_ctx_t *ctx, ltc_hash_algo_t algo, const uint8_t *key, uint32_t keySize);
+
+/*!
+ * @brief Add data to current HASH
+ *
+ * Add data to current HASH. This can be called repeatedly with an arbitrary amount of data to be
+ * hashed.
+ *
+ * @param[in,out] ctx HASH context
+ * @param input Input data
+ * @param inputSize Size of input data in bytes
+ * @return Status of the hash update operation
+ */
+status_t LTC_HASH_Update(ltc_hash_ctx_t *ctx, const uint8_t *input, uint32_t inputSize);
+
+/*!
+ * @brief Finalize hashing
+ *
+ * Outputs the final hash and erases the context.
+ *
+ * @param[in,out] ctx Input hash context
+ * @param[out] output Output hash data
+ * @param[out] outputSize Output parameter storing the size of the output hash in bytes
+ * @return Status of the hash finish operation
+ */
+status_t LTC_HASH_Finish(ltc_hash_ctx_t *ctx, uint8_t *output, uint32_t *outputSize);
+
+/*!
+ * @brief Create HASH on given data
+ *
+ * Perform the full keyed HASH in one function call.
+ *
+ * @param base LTC peripheral base address
+ * @param algo Block cipher algorithm to use for CMAC creation
+ * @param input Input data
+ * @param inputSize Size of input data in bytes
+ * @param key Input key
+ * @param keySize Size of input key in bytes
+ * @param[out] output Output hash data
+ * @param[out] outputSize Output parameter storing the size of the output hash in bytes
+ * @return Status of the one call hash operation.
+ */
+status_t LTC_HASH(LTC_Type *base,
+ ltc_hash_algo_t algo,
+ const uint8_t *input,
+ uint32_t inputSize,
+ const uint8_t *key,
+ uint32_t keySize,
+ uint8_t *output,
+ uint32_t *outputSize);
+/*!
+ *@}
+ */
+
+/*******************************************************************************
+ * PKHA API
+ ******************************************************************************/
+/*!
+ * @addtogroup ltc_driver_pkha
+ * @{
+ */
+
+/*!
+ * @brief Compare two PKHA big numbers.
+ *
+ * Compare two PKHA big numbers. Return 1 for a > b, -1 for a < b and 0 if they are same.
+ * PKHA big number is lsbyte first. Thus the comparison starts at msbyte which is the last member of tested arrays.
+ *
+ * @param a First integer represented as an array of bytes, lsbyte first.
+ * @param sizeA Size in bytes of the first integer.
+ * @param b Second integer represented as an array of bytes, lsbyte first.
+ * @param sizeB Size in bytes of the second integer.
+ * @return 1 if a > b.
+ * @return -1 if a < b.
+ * @return 0 if a = b.
+ */
+int LTC_PKHA_CompareBigNum(const uint8_t *a, size_t sizeA, const uint8_t *b, size_t sizeB);
+
+/*!
+ * @brief Converts from integer to Montgomery format.
+ *
+ * This function computes R2 mod N and optionally converts A or B into Montgomery format of A or B.
+ *
+ * @param base LTC peripheral base address
+ * @param N modulus
+ * @param sizeN size of N in bytes
+ * @param[in,out] A The first input in non-Montgomery format. Output Montgomery format of the first input.
+ * @param[in,out] sizeA pointer to size variable. On input it holds size of input A in bytes. On output it holds size of
+ * Montgomery format of A in bytes.
+ * @param[in,out] B Second input in non-Montgomery format. Output Montgomery format of the second input.
+ * @param[in,out] sizeB pointer to size variable. On input it holds size of input B in bytes. On output it holds size of
+ * Montgomery format of B in bytes.
+ * @param[out] R2 Output Montgomery factor R2 mod N.
+ * @param[out] sizeR2 pointer to size variable. On output it holds size of Montgomery factor R2 mod N in bytes.
+ * @param equalTime Run the function time equalized or no timing equalization.
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @return Operation status.
+ */
+status_t LTC_PKHA_NormalToMontgomery(LTC_Type *base,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *A,
+ uint16_t *sizeA,
+ uint8_t *B,
+ uint16_t *sizeB,
+ uint8_t *R2,
+ uint16_t *sizeR2,
+ ltc_pkha_timing_t equalTime,
+ ltc_pkha_f2m_t arithType);
+
+/*!
+ * @brief Converts from Montgomery format to int.
+ *
+ * This function converts Montgomery format of A or B into int A or B.
+ *
+ * @param base LTC peripheral base address
+ * @param N modulus.
+ * @param sizeN size of N modulus in bytes.
+ * @param[in,out] A Input first number in Montgomery format. Output is non-Montgomery format.
+ * @param[in,out] sizeA pointer to size variable. On input it holds size of the input A in bytes. On output it holds
+ * size of non-Montgomery A in bytes.
+ * @param[in,out] B Input first number in Montgomery format. Output is non-Montgomery format.
+ * @param[in,out] sizeB pointer to size variable. On input it holds size of the input B in bytes. On output it holds
+ * size of non-Montgomery B in bytes.
+ * @param equalTime Run the function time equalized or no timing equalization.
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @return Operation status.
+ */
+status_t LTC_PKHA_MontgomeryToNormal(LTC_Type *base,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *A,
+ uint16_t *sizeA,
+ uint8_t *B,
+ uint16_t *sizeB,
+ ltc_pkha_timing_t equalTime,
+ ltc_pkha_f2m_t arithType);
+
+/*!
+ * @brief Performs modular addition - (A + B) mod N.
+ *
+ * This function performs modular addition of (A + B) mod N, with either
+ * integer or binary polynomial (F2m) inputs. In the F2m form, this function is
+ * equivalent to a bitwise XOR and it is functionally the same as subtraction.
+ *
+ * @param base LTC peripheral base address
+ * @param A first addend (integer or binary polynomial)
+ * @param sizeA Size of A in bytes
+ * @param B second addend (integer or binary polynomial)
+ * @param sizeB Size of B in bytes
+ * @param N modulus. For F2m operation this can be NULL, as N is ignored during F2m polynomial addition.
+ * @param sizeN Size of N in bytes. This must be given for both integer and F2m polynomial additions.
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModAdd(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *B,
+ uint16_t sizeB,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *result,
+ uint16_t *resultSize,
+ ltc_pkha_f2m_t arithType);
+
+/*!
+ * @brief Performs modular subtraction - (A - B) mod N.
+ *
+ * This function performs modular subtraction of (A - B) mod N with
+ * integer inputs.
+ *
+ * @param base LTC peripheral base address
+ * @param A first addend (integer or binary polynomial)
+ * @param sizeA Size of A in bytes
+ * @param B second addend (integer or binary polynomial)
+ * @param sizeB Size of B in bytes
+ * @param N modulus
+ * @param sizeN Size of N in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModSub1(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *B,
+ uint16_t sizeB,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *result,
+ uint16_t *resultSize);
+
+/*!
+ * @brief Performs modular subtraction - (B - A) mod N.
+ *
+ * This function performs modular subtraction of (B - A) mod N,
+ * with integer inputs.
+ *
+ * @param base LTC peripheral base address
+ * @param A first addend (integer or binary polynomial)
+ * @param sizeA Size of A in bytes
+ * @param B second addend (integer or binary polynomial)
+ * @param sizeB Size of B in bytes
+ * @param N modulus
+ * @param sizeN Size of N in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModSub2(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *B,
+ uint16_t sizeB,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *result,
+ uint16_t *resultSize);
+
+/*!
+ * @brief Performs modular multiplication - (A x B) mod N.
+ *
+ * This function performs modular multiplication with either integer or
+ * binary polynomial (F2m) inputs. It can optionally specify whether inputs
+ * and/or outputs will be in Montgomery form or not.
+ *
+ * @param base LTC peripheral base address
+ * @param A first addend (integer or binary polynomial)
+ * @param sizeA Size of A in bytes
+ * @param B second addend (integer or binary polynomial)
+ * @param sizeB Size of B in bytes
+ * @param N modulus.
+ * @param sizeN Size of N in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @param montIn Format of inputs
+ * @param montOut Format of output
+ * @param equalTime Run the function time equalized or no timing equalization. This argument is ignored for F2m modular
+ * multiplication.
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModMul(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *B,
+ uint16_t sizeB,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *result,
+ uint16_t *resultSize,
+ ltc_pkha_f2m_t arithType,
+ ltc_pkha_montgomery_form_t montIn,
+ ltc_pkha_montgomery_form_t montOut,
+ ltc_pkha_timing_t equalTime);
+
+/*!
+ * @brief Performs modular exponentiation - (A^E) mod N.
+ *
+ * This function performs modular exponentiation with either integer or
+ * binary polynomial (F2m) inputs.
+ *
+ * @param base LTC peripheral base address
+ * @param A first addend (integer or binary polynomial)
+ * @param sizeA Size of A in bytes
+ * @param N modulus
+ * @param sizeN Size of N in bytes
+ * @param E exponent
+ * @param sizeE Size of E in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @param montIn Format of A input (normal or Montgomery)
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @param equalTime Run the function time equalized or no timing equalization.
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModExp(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *N,
+ uint16_t sizeN,
+ const uint8_t *E,
+ uint16_t sizeE,
+ uint8_t *result,
+ uint16_t *resultSize,
+ ltc_pkha_f2m_t arithType,
+ ltc_pkha_montgomery_form_t montIn,
+ ltc_pkha_timing_t equalTime);
+
+/*!
+ * @brief Performs modular reduction - (A) mod N.
+ *
+ * This function performs modular reduction with either integer or
+ * binary polynomial (F2m) inputs.
+ *
+ * @param base LTC peripheral base address
+ * @param A first addend (integer or binary polynomial)
+ * @param sizeA Size of A in bytes
+ * @param N modulus
+ * @param sizeN Size of N in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModRed(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *result,
+ uint16_t *resultSize,
+ ltc_pkha_f2m_t arithType);
+
+/*!
+ * @brief Performs modular inversion - (A^-1) mod N.
+ *
+ * This function performs modular inversion with either integer or
+ * binary polynomial (F2m) inputs.
+ *
+ * @param base LTC peripheral base address
+ * @param A first addend (integer or binary polynomial)
+ * @param sizeA Size of A in bytes
+ * @param N modulus
+ * @param sizeN Size of N in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModInv(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *result,
+ uint16_t *resultSize,
+ ltc_pkha_f2m_t arithType);
+
+/*!
+ * @brief Computes integer Montgomery factor R^2 mod N.
+ *
+ * This function computes a constant to assist in converting operands
+ * into the Montgomery residue system representation.
+ *
+ * @param base LTC peripheral base address
+ * @param N modulus
+ * @param sizeN Size of N in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ModR2(
+ LTC_Type *base, const uint8_t *N, uint16_t sizeN, uint8_t *result, uint16_t *resultSize, ltc_pkha_f2m_t arithType);
+
+/*!
+ * @brief Calculates the greatest common divisor - GCD (A, N).
+ *
+ * This function calculates the greatest common divisor of two inputs with
+ * either integer or binary polynomial (F2m) inputs.
+ *
+ * @param base LTC peripheral base address
+ * @param A first value (must be smaller than or equal to N)
+ * @param sizeA Size of A in bytes
+ * @param N second value (must be non-zero)
+ * @param sizeN Size of N in bytes
+ * @param[out] result Output array to store result of operation
+ * @param[out] resultSize Output size of operation in bytes
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @return Operation status.
+ */
+status_t LTC_PKHA_GCD(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *N,
+ uint16_t sizeN,
+ uint8_t *result,
+ uint16_t *resultSize,
+ ltc_pkha_f2m_t arithType);
+
+/*!
+ * @brief Executes Miller-Rabin primality test.
+ *
+ * This function calculates whether or not a candidate prime number is likely
+ * to be a prime.
+ *
+ * @param base LTC peripheral base address
+ * @param A initial random seed
+ * @param sizeA Size of A in bytes
+ * @param B number of trial runs
+ * @param sizeB Size of B in bytes
+ * @param N candidate prime integer
+ * @param sizeN Size of N in bytes
+ * @param[out] res True if the value is likely prime or false otherwise
+ * @return Operation status.
+ */
+status_t LTC_PKHA_PrimalityTest(LTC_Type *base,
+ const uint8_t *A,
+ uint16_t sizeA,
+ const uint8_t *B,
+ uint16_t sizeB,
+ const uint8_t *N,
+ uint16_t sizeN,
+ bool *res);
+
+/*!
+ * @brief Adds elliptic curve points - A + B.
+ *
+ * This function performs ECC point addition over a prime field (Fp) or binary field (F2m) using
+ * affine coordinates.
+ *
+ * @param base LTC peripheral base address
+ * @param A Left-hand point
+ * @param B Right-hand point
+ * @param N Prime modulus of the field
+ * @param R2modN NULL (the function computes R2modN internally) or pointer to pre-computed R2modN (obtained from
+ * LTC_PKHA_ModR2() function).
+ * @param aCurveParam A parameter from curve equation
+ * @param bCurveParam B parameter from curve equation (constant)
+ * @param size Size in bytes of curve points and parameters
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @param[out] result Result point
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ECC_PointAdd(LTC_Type *base,
+ const ltc_pkha_ecc_point_t *A,
+ const ltc_pkha_ecc_point_t *B,
+ const uint8_t *N,
+ const uint8_t *R2modN,
+ const uint8_t *aCurveParam,
+ const uint8_t *bCurveParam,
+ uint8_t size,
+ ltc_pkha_f2m_t arithType,
+ ltc_pkha_ecc_point_t *result);
+
+/*!
+ * @brief Doubles elliptic curve points - B + B.
+ *
+ * This function performs ECC point doubling over a prime field (Fp) or binary field (F2m) using
+ * affine coordinates.
+ *
+ * @param base LTC peripheral base address
+ * @param B Point to double
+ * @param N Prime modulus of the field
+ * @param aCurveParam A parameter from curve equation
+ * @param bCurveParam B parameter from curve equation (constant)
+ * @param size Size in bytes of curve points and parameters
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @param[out] result Result point
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ECC_PointDouble(LTC_Type *base,
+ const ltc_pkha_ecc_point_t *B,
+ const uint8_t *N,
+ const uint8_t *aCurveParam,
+ const uint8_t *bCurveParam,
+ uint8_t size,
+ ltc_pkha_f2m_t arithType,
+ ltc_pkha_ecc_point_t *result);
+
+/*!
+ * @brief Multiplies an elliptic curve point by a scalar - E x (A0, A1).
+ *
+ * This function performs ECC point multiplication to multiply an ECC point by
+ * a scalar integer multiplier over a prime field (Fp) or a binary field (F2m).
+ *
+ * @param base LTC peripheral base address
+ * @param A Point as multiplicand
+ * @param E Scalar multiple
+ * @param sizeE The size of E, in bytes
+ * @param N Modulus, a prime number for the Fp field or Irreducible polynomial for F2m field.
+ * @param R2modN NULL (the function computes R2modN internally) or pointer to pre-computed R2modN (obtained from
+ * LTC_PKHA_ModR2() function).
+ * @param aCurveParam A parameter from curve equation
+ * @param bCurveParam B parameter from curve equation (C parameter for operation over F2m).
+ * @param size Size in bytes of curve points and parameters
+ * @param equalTime Run the function time equalized or no timing equalization.
+ * @param arithType Type of arithmetic to perform (integer or F2m)
+ * @param[out] result Result point
+ * @param[out] infinity Output true if the result is point of infinity, and false otherwise. Writing of this output will
+ * be ignored if the argument is NULL.
+ * @return Operation status.
+ */
+status_t LTC_PKHA_ECC_PointMul(LTC_Type *base,
+ const ltc_pkha_ecc_point_t *A,
+ const uint8_t *E,
+ uint8_t sizeE,
+ const uint8_t *N,
+ const uint8_t *R2modN,
+ const uint8_t *aCurveParam,
+ const uint8_t *bCurveParam,
+ uint8_t size,
+ ltc_pkha_timing_t equalTime,
+ ltc_pkha_f2m_t arithType,
+ ltc_pkha_ecc_point_t *result,
+ bool *infinity);
+
+/*!
+ *@}
+ */
+
+#if defined(__cplusplus)
+}
+#endif
+
+/*!
+ *@}
+ */
+
+#endif /* _FSL_LTC_H_ */
