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Diffstat (limited to 'lib/mbedtls-2.27.0/include/mbedtls/ccm.h')
| -rw-r--r-- | lib/mbedtls-2.27.0/include/mbedtls/ccm.h | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/lib/mbedtls-2.27.0/include/mbedtls/ccm.h b/lib/mbedtls-2.27.0/include/mbedtls/ccm.h deleted file mode 100644 index 7193863..0000000 --- a/lib/mbedtls-2.27.0/include/mbedtls/ccm.h +++ /dev/null @@ -1,308 +0,0 @@ -/** - * \file ccm.h - * - * \brief This file provides an API for the CCM authenticated encryption - * mode for block ciphers. - * - * CCM combines Counter mode encryption with CBC-MAC authentication - * for 128-bit block ciphers. - * - * Input to CCM includes the following elements: - * <ul><li>Payload - data that is both authenticated and encrypted.</li> - * <li>Associated data (Adata) - data that is authenticated but not - * encrypted, For example, a header.</li> - * <li>Nonce - A unique value that is assigned to the payload and the - * associated data.</li></ul> - * - * Definition of CCM: - * http://csrc.nist.gov/publications/nistpubs/800-38C/SP800-38C_updated-July20_2007.pdf - * RFC 3610 "Counter with CBC-MAC (CCM)" - * - * Related: - * RFC 5116 "An Interface and Algorithms for Authenticated Encryption" - * - * Definition of CCM*: - * IEEE 802.15.4 - IEEE Standard for Local and metropolitan area networks - * Integer representation is fixed most-significant-octet-first order and - * the representation of octets is most-significant-bit-first order. This is - * consistent with RFC 3610. - */ -/* - * Copyright The Mbed TLS Contributors - * 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. - */ - -#ifndef MBEDTLS_CCM_H -#define MBEDTLS_CCM_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "mbedtls/cipher.h" - -#define MBEDTLS_ERR_CCM_BAD_INPUT -0x000D /**< Bad input parameters to the function. */ -#define MBEDTLS_ERR_CCM_AUTH_FAILED -0x000F /**< Authenticated decryption failed. */ - -/* MBEDTLS_ERR_CCM_HW_ACCEL_FAILED is deprecated and should not be used. */ -#define MBEDTLS_ERR_CCM_HW_ACCEL_FAILED -0x0011 /**< CCM hardware accelerator failed. */ - -#ifdef __cplusplus -extern "C" { -#endif - -#if !defined(MBEDTLS_CCM_ALT) -// Regular implementation -// - -/** - * \brief The CCM context-type definition. The CCM context is passed - * to the APIs called. - */ -typedef struct mbedtls_ccm_context -{ - mbedtls_cipher_context_t cipher_ctx; /*!< The cipher context used. */ -} -mbedtls_ccm_context; - -#else /* MBEDTLS_CCM_ALT */ -#include "ccm_alt.h" -#endif /* MBEDTLS_CCM_ALT */ - -/** - * \brief This function initializes the specified CCM context, - * to make references valid, and prepare the context - * for mbedtls_ccm_setkey() or mbedtls_ccm_free(). - * - * \param ctx The CCM context to initialize. This must not be \c NULL. - */ -void mbedtls_ccm_init( mbedtls_ccm_context *ctx ); - -/** - * \brief This function initializes the CCM context set in the - * \p ctx parameter and sets the encryption key. - * - * \param ctx The CCM context to initialize. This must be an initialized - * context. - * \param cipher The 128-bit block cipher to use. - * \param key The encryption key. This must not be \c NULL. - * \param keybits The key size in bits. This must be acceptable by the cipher. - * - * \return \c 0 on success. - * \return A CCM or cipher-specific error code on failure. - */ -int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx, - mbedtls_cipher_id_t cipher, - const unsigned char *key, - unsigned int keybits ); - -/** - * \brief This function releases and clears the specified CCM context - * and underlying cipher sub-context. - * - * \param ctx The CCM context to clear. If this is \c NULL, the function - * has no effect. Otherwise, this must be initialized. - */ -void mbedtls_ccm_free( mbedtls_ccm_context *ctx ); - -/** - * \brief This function encrypts a buffer using CCM. - * - * \note The tag is written to a separate buffer. To concatenate - * the \p tag with the \p output, as done in <em>RFC-3610: - * Counter with CBC-MAC (CCM)</em>, use - * \p tag = \p output + \p length, and make sure that the - * output buffer is at least \p length + \p tag_len wide. - * - * \param ctx The CCM context to use for encryption. This must be - * initialized and bound to a key. - * \param length The length of the input data in Bytes. - * \param iv The initialization vector (nonce). This must be a readable - * buffer of at least \p iv_len Bytes. - * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, - * or 13. The length L of the message length field is - * 15 - \p iv_len. - * \param add The additional data field. If \p add_len is greater than - * zero, \p add must be a readable buffer of at least that - * length. - * \param add_len The length of additional data in Bytes. - * This must be less than `2^16 - 2^8`. - * \param input The buffer holding the input data. If \p length is greater - * than zero, \p input must be a readable buffer of at least - * that length. - * \param output The buffer holding the output data. If \p length is greater - * than zero, \p output must be a writable buffer of at least - * that length. - * \param tag The buffer holding the authentication field. This must be a - * writable buffer of at least \p tag_len Bytes. - * \param tag_len The length of the authentication field to generate in Bytes: - * 4, 6, 8, 10, 12, 14 or 16. - * - * \return \c 0 on success. - * \return A CCM or cipher-specific error code on failure. - */ -int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length, - const unsigned char *iv, size_t iv_len, - const unsigned char *add, size_t add_len, - const unsigned char *input, unsigned char *output, - unsigned char *tag, size_t tag_len ); - -/** - * \brief This function encrypts a buffer using CCM*. - * - * \note The tag is written to a separate buffer. To concatenate - * the \p tag with the \p output, as done in <em>RFC-3610: - * Counter with CBC-MAC (CCM)</em>, use - * \p tag = \p output + \p length, and make sure that the - * output buffer is at least \p length + \p tag_len wide. - * - * \note When using this function in a variable tag length context, - * the tag length has to be encoded into the \p iv passed to - * this function. - * - * \param ctx The CCM context to use for encryption. This must be - * initialized and bound to a key. - * \param length The length of the input data in Bytes. - * \param iv The initialization vector (nonce). This must be a readable - * buffer of at least \p iv_len Bytes. - * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, - * or 13. The length L of the message length field is - * 15 - \p iv_len. - * \param add The additional data field. This must be a readable buffer of - * at least \p add_len Bytes. - * \param add_len The length of additional data in Bytes. - * This must be less than 2^16 - 2^8. - * \param input The buffer holding the input data. If \p length is greater - * than zero, \p input must be a readable buffer of at least - * that length. - * \param output The buffer holding the output data. If \p length is greater - * than zero, \p output must be a writable buffer of at least - * that length. - * \param tag The buffer holding the authentication field. This must be a - * writable buffer of at least \p tag_len Bytes. - * \param tag_len The length of the authentication field to generate in Bytes: - * 0, 4, 6, 8, 10, 12, 14 or 16. - * - * \warning Passing \c 0 as \p tag_len means that the message is no - * longer authenticated. - * - * \return \c 0 on success. - * \return A CCM or cipher-specific error code on failure. - */ -int mbedtls_ccm_star_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length, - const unsigned char *iv, size_t iv_len, - const unsigned char *add, size_t add_len, - const unsigned char *input, unsigned char *output, - unsigned char *tag, size_t tag_len ); - -/** - * \brief This function performs a CCM authenticated decryption of a - * buffer. - * - * \param ctx The CCM context to use for decryption. This must be - * initialized and bound to a key. - * \param length The length of the input data in Bytes. - * \param iv The initialization vector (nonce). This must be a readable - * buffer of at least \p iv_len Bytes. - * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, - * or 13. The length L of the message length field is - * 15 - \p iv_len. - * \param add The additional data field. This must be a readable buffer - * of at least that \p add_len Bytes.. - * \param add_len The length of additional data in Bytes. - * This must be less than 2^16 - 2^8. - * \param input The buffer holding the input data. If \p length is greater - * than zero, \p input must be a readable buffer of at least - * that length. - * \param output The buffer holding the output data. If \p length is greater - * than zero, \p output must be a writable buffer of at least - * that length. - * \param tag The buffer holding the authentication field. This must be a - * readable buffer of at least \p tag_len Bytes. - * \param tag_len The length of the authentication field to generate in Bytes: - * 4, 6, 8, 10, 12, 14 or 16. - * - * \return \c 0 on success. This indicates that the message is authentic. - * \return #MBEDTLS_ERR_CCM_AUTH_FAILED if the tag does not match. - * \return A cipher-specific error code on calculation failure. - */ -int mbedtls_ccm_auth_decrypt( mbedtls_ccm_context *ctx, size_t length, - const unsigned char *iv, size_t iv_len, - const unsigned char *add, size_t add_len, - const unsigned char *input, unsigned char *output, - const unsigned char *tag, size_t tag_len ); - -/** - * \brief This function performs a CCM* authenticated decryption of a - * buffer. - * - * \note When using this function in a variable tag length context, - * the tag length has to be decoded from \p iv and passed to - * this function as \p tag_len. (\p tag needs to be adjusted - * accordingly.) - * - * \param ctx The CCM context to use for decryption. This must be - * initialized and bound to a key. - * \param length The length of the input data in Bytes. - * \param iv The initialization vector (nonce). This must be a readable - * buffer of at least \p iv_len Bytes. - * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, - * or 13. The length L of the message length field is - * 15 - \p iv_len. - * \param add The additional data field. This must be a readable buffer of - * at least that \p add_len Bytes. - * \param add_len The length of additional data in Bytes. - * This must be less than 2^16 - 2^8. - * \param input The buffer holding the input data. If \p length is greater - * than zero, \p input must be a readable buffer of at least - * that length. - * \param output The buffer holding the output data. If \p length is greater - * than zero, \p output must be a writable buffer of at least - * that length. - * \param tag The buffer holding the authentication field. This must be a - * readable buffer of at least \p tag_len Bytes. - * \param tag_len The length of the authentication field in Bytes. - * 0, 4, 6, 8, 10, 12, 14 or 16. - * - * \warning Passing \c 0 as \p tag_len means that the message is nos - * longer authenticated. - * - * \return \c 0 on success. - * \return #MBEDTLS_ERR_CCM_AUTH_FAILED if the tag does not match. - * \return A cipher-specific error code on calculation failure. - */ -int mbedtls_ccm_star_auth_decrypt( mbedtls_ccm_context *ctx, size_t length, - const unsigned char *iv, size_t iv_len, - const unsigned char *add, size_t add_len, - const unsigned char *input, unsigned char *output, - const unsigned char *tag, size_t tag_len ); - -#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) -/** - * \brief The CCM checkup routine. - * - * \return \c 0 on success. - * \return \c 1 on failure. - */ -int mbedtls_ccm_self_test( int verbose ); -#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ - -#ifdef __cplusplus -} -#endif - -#endif /* MBEDTLS_CCM_H */ |