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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Crypto Component */
/** */
/** NULL Cipher */
/** */
/**************************************************************************/
/**************************************************************************/
#include "nx_crypto_null.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_crypto_method_null_init PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function acts as a placeholder for TLS ciphersuites that do */
/* not use a ciper for a particular operation. For example, the PSK */
/* ciphersuite TLS_PSK_WITH_AES_128_CBC_SHA uses AES and SHA-1 but */
/* no public cipher (e.g. RSA). */
/* */
/* INPUT */
/* */
/* method Crypto Method Object */
/* key Key */
/* key_size_in_bits Size of the key, in bits */
/* handle Handle, specified by user */
/* crypto_metadata Metadata area */
/* crypto_metadata_size Size of the metadata area */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* None */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
NX_CRYPTO_KEEP UINT _nx_crypto_method_null_init(struct NX_CRYPTO_METHOD_STRUCT *method,
UCHAR *key, NX_CRYPTO_KEY_SIZE key_size_in_bits,
VOID **handle,
VOID *crypto_metadata,
ULONG crypto_metadata_size)
{
NX_CRYPTO_PARAMETER_NOT_USED(method);
NX_CRYPTO_PARAMETER_NOT_USED(key);
NX_CRYPTO_PARAMETER_NOT_USED(key_size_in_bits);
NX_CRYPTO_PARAMETER_NOT_USED(handle);
NX_CRYPTO_PARAMETER_NOT_USED(crypto_metadata);
NX_CRYPTO_PARAMETER_NOT_USED(crypto_metadata_size);
return(NX_CRYPTO_SUCCESS);
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_crypto_method_null_cleanup PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function cleans up the crypto metadata. */
/* */
/* INPUT */
/* */
/* crypto_metadata Crypto metadata */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
NX_CRYPTO_KEEP UINT _nx_crypto_method_null_cleanup(VOID *crypto_metadata)
{
NX_CRYPTO_PARAMETER_NOT_USED(crypto_metadata);
return(NX_CRYPTO_SUCCESS);
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_crypto_method_aes_operation PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function encrypts and decrypts a message using */
/* the AES algorithm. */
/* */
/* INPUT */
/* */
/* op AES operation */
/* handle Crypto handle */
/* method Cryption Method Object */
/* key Encryption Key */
/* key_size_in_bits Key size in bits */
/* input Input data */
/* input_length_in_byte Input data size */
/* iv_ptr Initial vector */
/* output Output buffer */
/* output_length_in_byte Output buffer size */
/* crypto_metadata Metadata area */
/* crypto_metadata_size Metadata area size */
/* packet_ptr Pointer to packet */
/* nx_crypto_hw_process_callback Callback function pointer */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
NX_CRYPTO_KEEP UINT _nx_crypto_method_null_operation(UINT op, /* Encrypt, Decrypt, Authenticate */
VOID *handle, /* Crypto handler */
struct NX_CRYPTO_METHOD_STRUCT *method,
UCHAR *key,
NX_CRYPTO_KEY_SIZE key_size_in_bits,
UCHAR *input,
ULONG input_length_in_byte,
UCHAR *iv_ptr,
UCHAR *output,
ULONG output_length_in_byte,
VOID *crypto_metadata,
ULONG crypto_metadata_size,
VOID *packet_ptr,
VOID (*nx_crypto_hw_process_callback)(VOID *packet_ptr, UINT status))
{
NX_CRYPTO_PARAMETER_NOT_USED(op);
NX_CRYPTO_PARAMETER_NOT_USED(handle);
NX_CRYPTO_PARAMETER_NOT_USED(method);
NX_CRYPTO_PARAMETER_NOT_USED(key);
NX_CRYPTO_PARAMETER_NOT_USED(key_size_in_bits);
NX_CRYPTO_PARAMETER_NOT_USED(input);
NX_CRYPTO_PARAMETER_NOT_USED(input_length_in_byte);
NX_CRYPTO_PARAMETER_NOT_USED(iv_ptr);
NX_CRYPTO_PARAMETER_NOT_USED(output);
NX_CRYPTO_PARAMETER_NOT_USED(output_length_in_byte);
NX_CRYPTO_PARAMETER_NOT_USED(crypto_metadata);
NX_CRYPTO_PARAMETER_NOT_USED(crypto_metadata_size);
NX_CRYPTO_PARAMETER_NOT_USED(packet_ptr);
NX_CRYPTO_PARAMETER_NOT_USED(nx_crypto_hw_process_callback);
return(NX_CRYPTO_SUCCESS);
}