early-access version 1503
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pineappleEA
87
externals/mbedtls/include/mbedtls/poly1305.h
vendored
87
externals/mbedtls/include/mbedtls/poly1305.h
vendored
@@ -12,8 +12,32 @@
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* \author Daniel King <damaki.gh@gmail.com>
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*/
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/* Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved.
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* SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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*
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* This file is provided under the Apache License 2.0, or the
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* GNU General Public License v2.0 or later.
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*
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* **********
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* Apache License 2.0:
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* **********
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*
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* **********
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* GNU General Public License v2.0 or later:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@@ -29,14 +53,14 @@
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* This file is part of Mbed TLS (https://tls.mbed.org)
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* **********
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*/
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#ifndef MBEDTLS_POLY1305_H
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#define MBEDTLS_POLY1305_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#include "config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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@@ -45,7 +69,13 @@
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#include <stddef.h>
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#define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA -0x0057 /**< Invalid input parameter(s). */
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/* MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE is deprecated and should not be
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* used. */
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#define MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE -0x0059 /**< Feature not available. For example, s part of the API is not implemented. */
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/* MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED is deprecated and should not be used.
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*/
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#define MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED -0x005B /**< Poly1305 hardware accelerator failed. */
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#ifdef __cplusplus
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@@ -54,7 +84,7 @@ extern "C" {
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#if !defined(MBEDTLS_POLY1305_ALT)
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typedef struct
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typedef struct mbedtls_poly1305_context
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{
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uint32_t r[4]; /** The value for 'r' (low 128 bits of the key). */
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uint32_t s[4]; /** The value for 's' (high 128 bits of the key). */
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@@ -80,14 +110,18 @@ mbedtls_poly1305_context;
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* \c mbedtls_poly1305_finish(), then finally
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* \c mbedtls_poly1305_free().
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*
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* \param ctx The Poly1305 context to initialize.
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* \param ctx The Poly1305 context to initialize. This must
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* not be \c NULL.
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*/
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void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx );
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/**
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* \brief This function releases and clears the specified Poly1305 context.
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* \brief This function releases and clears the specified
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* Poly1305 context.
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*
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* \param ctx The Poly1305 context to clear.
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* \param ctx The Poly1305 context to clear. This may be \c NULL, in which
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* case this function is a no-op. If it is not \c NULL, it must
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* point to an initialized Poly1305 context.
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*/
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void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx );
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@@ -98,11 +132,11 @@ void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx );
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* invocation of Poly1305.
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*
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* \param ctx The Poly1305 context to which the key should be bound.
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* \param key The buffer containing the 256-bit key.
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* This must be initialized.
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* \param key The buffer containing the \c 32 Byte (\c 256 Bit) key.
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*
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* \return \c 0 on success.
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* \return #MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA
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* if ctx or key are NULL.
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* \return A negative error code on failure.
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*/
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int mbedtls_poly1305_starts( mbedtls_poly1305_context *ctx,
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const unsigned char key[32] );
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@@ -116,13 +150,14 @@ int mbedtls_poly1305_starts( mbedtls_poly1305_context *ctx,
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* It can be called repeatedly to process a stream of data.
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*
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* \param ctx The Poly1305 context to use for the Poly1305 operation.
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* \param ilen The length of the input data (in bytes). Any value is accepted.
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* This must be initialized and bound to a key.
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* \param ilen The length of the input data in Bytes.
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* Any value is accepted.
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* \param input The buffer holding the input data.
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* This pointer can be NULL if ilen == 0.
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* This pointer can be \c NULL if `ilen == 0`.
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*
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* \return \c 0 on success.
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* \return #MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA
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* if ctx or input are NULL.
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* \return A negative error code on failure.
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*/
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int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
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const unsigned char *input,
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@@ -133,12 +168,12 @@ int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
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* Authentication Code (MAC).
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*
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* \param ctx The Poly1305 context to use for the Poly1305 operation.
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* \param mac The buffer to where the MAC is written. Must be big enough
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* to hold the 16-byte MAC.
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* This must be initialized and bound to a key.
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* \param mac The buffer to where the MAC is written. This must
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* be a writable buffer of length \c 16 Bytes.
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*
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* \return \c 0 on success.
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* \return #MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA
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* if ctx or mac are NULL.
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* \return A negative error code on failure.
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*/
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int mbedtls_poly1305_finish( mbedtls_poly1305_context *ctx,
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unsigned char mac[16] );
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@@ -150,16 +185,16 @@ int mbedtls_poly1305_finish( mbedtls_poly1305_context *ctx,
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* \warning The key must be unique and unpredictable for each
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* invocation of Poly1305.
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*
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* \param key The buffer containing the 256-bit key.
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* \param ilen The length of the input data (in bytes). Any value is accepted.
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* \param key The buffer containing the \c 32 Byte (\c 256 Bit) key.
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* \param ilen The length of the input data in Bytes.
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* Any value is accepted.
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* \param input The buffer holding the input data.
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* This pointer can be NULL if ilen == 0.
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* \param mac The buffer to where the MAC is written. Must be big enough
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* to hold the 16-byte MAC.
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* This pointer can be \c NULL if `ilen == 0`.
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* \param mac The buffer to where the MAC is written. This must be
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* a writable buffer of length \c 16 Bytes.
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*
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* \return \c 0 on success.
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* \return #MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA
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* if key, input, or mac are NULL.
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* \return A negative error code on failure.
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*/
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int mbedtls_poly1305_mac( const unsigned char key[32],
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const unsigned char *input,
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