Initial commit

1 files changed, 215 insertions, 0 deletions

diff --git a/crypto_libraries/src/nx_crypto_null_cipher.c b/crypto_libraries/src/nx_crypto_null_cipher.c
new file mode 100644
index 00000000..34cab3db
--- /dev/null
+++ b/crypto_libraries/src/nx_crypto_null_cipher.c
@@ -0,0 +1,215 @@
+/**************************************************************************/
+/*                                                                        */
+/*       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     */
+/*                                                           6.0          */
+/*  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           */
+/*                                                                        */
+/**************************************************************************/
+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      */
+/*                                                           6.0          */
+/*  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           */
+/*                                                                        */
+/**************************************************************************/
+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       */
+/*                                                           6.0          */
+/*  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           */
+/*                                                                        */
+/**************************************************************************/
+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);
+}
+