same54_crypto_cipher.c File Reference

SAME54 cipher hardware accelerator. More...

Go to the source code of this file.

Macros

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL
 

Functions

void aesLoadKey (AesContext *context)
 Load AES key. More...
 
void aesProcessDataBlock (const uint8_t *input, uint8_t *output)
 Encrypt/decrypt a 16-byte block using AES algorithm. More...
 
void aesProcessData (AesContext *context, uint8_t *iv, const uint8_t *input, uint8_t *output, size_t length, uint32_t mode)
 Perform AES encryption or decryption. More...
 
error_t aesInit (AesContext *context, const uint8_t *key, size_t keyLen)
 Key expansion. More...
 
void aesEncryptBlock (AesContext *context, const uint8_t *input, uint8_t *output)
 Encrypt a 16-byte block using AES algorithm. More...
 
void aesDecryptBlock (AesContext *context, const uint8_t *input, uint8_t *output)
 Decrypt a 16-byte block using AES algorithm. More...
 
error_t ecbEncrypt (const CipherAlgo *cipher, void *context, const uint8_t *p, uint8_t *c, size_t length)
 ECB encryption. More...
 
error_t ecbDecrypt (const CipherAlgo *cipher, void *context, const uint8_t *c, uint8_t *p, size_t length)
 ECB decryption. More...
 
error_t cbcEncrypt (const CipherAlgo *cipher, void *context, uint8_t *iv, const uint8_t *p, uint8_t *c, size_t length)
 CBC encryption. More...
 
error_t cbcDecrypt (const CipherAlgo *cipher, void *context, uint8_t *iv, const uint8_t *c, uint8_t *p, size_t length)
 CBC decryption. More...
 
error_t cfbEncrypt (const CipherAlgo *cipher, void *context, uint_t s, uint8_t *iv, const uint8_t *p, uint8_t *c, size_t length)
 CFB encryption. More...
 
error_t cfbDecrypt (const CipherAlgo *cipher, void *context, uint_t s, uint8_t *iv, const uint8_t *c, uint8_t *p, size_t length)
 CFB decryption. More...
 
error_t ofbEncrypt (const CipherAlgo *cipher, void *context, uint_t s, uint8_t *iv, const uint8_t *p, uint8_t *c, size_t length)
 OFB encryption. More...
 
void gcmGenerateHashSubKey (AesContext *context)
 Generate hash subkey. More...
 
void gcmSetMode (AesContext *context, uint32_t mode)
 Set GCM operation mode. More...
 
void gcmUpdateGhash (const uint8_t *data)
 Update GHASH value. More...
 
void gcmGeneratePreCounterBlock (const uint8_t *iv, size_t ivLen, uint32_t *j)
 Generate pre-counter block. More...
 
void gcmProcessAuthData (const uint8_t *aad, size_t aadLen)
 Process additional authenticated data. More...
 
void gcmProcessData (const uint32_t *j, const uint8_t *input, uint8_t *output, size_t length)
 Encrypt/decrypt payload data. More...
 
void gcmGenerateTag (AesContext *context, const uint32_t *j, size_t aadLen, size_t dataLen, uint8_t *tag)
 Calculate authentication tag. More...
 
error_t gcmInit (GcmContext *context, const CipherAlgo *cipherAlgo, void *cipherContext)
 Initialize GCM context. More...
 
error_t gcmEncrypt (GcmContext *context, const uint8_t *iv, size_t ivLen, const uint8_t *a, size_t aLen, const uint8_t *p, uint8_t *c, size_t length, uint8_t *t, size_t tLen)
 Authenticated encryption using GCM. More...
 
error_t gcmDecrypt (GcmContext *context, const uint8_t *iv, size_t ivLen, const uint8_t *a, size_t aLen, const uint8_t *c, uint8_t *p, size_t length, const uint8_t *t, size_t tLen)
 Authenticated decryption using GCM. More...
 

Detailed Description

SAME54 cipher hardware accelerator.

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2024 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneCRYPTO Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author
Oryx Embedded SARL (www.oryx-embedded.com)
Version
2.4.0

Definition in file same54_crypto_cipher.c.

Macro Definition Documentation

◆ TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 32 of file same54_crypto_cipher.c.

Function Documentation

◆ aesDecryptBlock()

void aesDecryptBlock ( AesContext context,
const uint8_t *  input,
uint8_t *  output 
)

Decrypt a 16-byte block using AES algorithm.

Parameters
[in]contextPointer to the AES context
[in]inputCiphertext block to decrypt
[out]outputPlaintext block resulting from decryption

Definition at line 281 of file same54_crypto_cipher.c.

◆ aesEncryptBlock()

void aesEncryptBlock ( AesContext context,
const uint8_t *  input,
uint8_t *  output 
)

Encrypt a 16-byte block using AES algorithm.

Parameters
[in]contextPointer to the AES context
[in]inputPlaintext block to encrypt
[out]outputCiphertext block resulting from encryption

Definition at line 266 of file same54_crypto_cipher.c.

◆ aesInit()

error_t aesInit ( AesContext context,
const uint8_t *  key,
size_t  keyLen 
)

Key expansion.

Parameters
[in]contextPointer to the AES context to initialize
[in]keyPointer to the key
[in]keyLenLength of the key
Returns
Error code

Definition at line 223 of file same54_crypto_cipher.c.

◆ aesLoadKey()

void aesLoadKey ( AesContext context)

Load AES key.

Parameters
[in]contextAES algorithm context

Definition at line 53 of file same54_crypto_cipher.c.

◆ aesProcessData()

void aesProcessData ( AesContext context,
uint8_t *  iv,
const uint8_t *  input,
uint8_t *  output,
size_t  length,
uint32_t  mode 
)

Perform AES encryption or decryption.

Parameters
[in]contextAES algorithm context
[in]ivInitialization vector
[in]inputData to be encrypted/decrypted
[out]outputData resulting from the encryption/decryption process
[in]lengthTotal number of data bytes to be processed
[in]modeOperation mode

Definition at line 147 of file same54_crypto_cipher.c.

◆ aesProcessDataBlock()

void aesProcessDataBlock ( const uint8_t *  input,
uint8_t *  output 
)

Encrypt/decrypt a 16-byte block using AES algorithm.

Parameters
[in]inputInput block to be encrypted/decrypted
[out]outputResulting block

Definition at line 109 of file same54_crypto_cipher.c.

◆ cbcDecrypt()

error_t cbcDecrypt ( const CipherAlgo cipher,
void *  context,
uint8_t *  iv,
const uint8_t *  c,
uint8_t *  p,
size_t  length 
)

CBC decryption.

Parameters
[in]cipherCipher algorithm
[in]contextCipher algorithm context
[in,out]ivInitialization vector
[in]cCiphertext to be decrypted
[out]pPlaintext resulting from the decryption
[in]lengthTotal number of data bytes to be decrypted
Returns
Error code

Definition at line 512 of file same54_crypto_cipher.c.

◆ cbcEncrypt()

error_t cbcEncrypt ( const CipherAlgo cipher,
void *  context,
uint8_t *  iv,
const uint8_t *  p,
uint8_t *  c,
size_t  length 
)

CBC encryption.

Parameters
[in]cipherCipher algorithm
[in]contextCipher algorithm context
[in,out]ivInitialization vector
[in]pPlaintext to be encrypted
[out]cCiphertext resulting from the encryption
[in]lengthTotal number of data bytes to be encrypted
Returns
Error code

Definition at line 432 of file same54_crypto_cipher.c.

◆ cfbDecrypt()

error_t cfbDecrypt ( const CipherAlgo cipher,
void *  context,
uint_t  s,
uint8_t *  iv,
const uint8_t *  c,
uint8_t *  p,
size_t  length 
)

CFB decryption.

Parameters
[in]cipherCipher algorithm
[in]contextCipher algorithm context
[in]sSize of the plaintext and ciphertext segments
[in,out]ivInitialization vector
[in]cCiphertext to be decrypted
[out]pPlaintext resulting from the decryption
[in]lengthTotal number of data bytes to be decrypted
Returns
Error code

Definition at line 696 of file same54_crypto_cipher.c.

◆ cfbEncrypt()

error_t cfbEncrypt ( const CipherAlgo cipher,
void *  context,
uint_t  s,
uint8_t *  iv,
const uint8_t *  p,
uint8_t *  c,
size_t  length 
)

CFB encryption.

Parameters
[in]cipherCipher algorithm
[in]contextCipher algorithm context
[in]sSize of the plaintext and ciphertext segments
[in,out]ivInitialization vector
[in]pPlaintext to be encrypted
[out]cCiphertext resulting from the encryption
[in]lengthTotal number of data bytes to be encrypted
Returns
Error code

Definition at line 603 of file same54_crypto_cipher.c.

◆ ecbDecrypt()

error_t ecbDecrypt ( const CipherAlgo cipher,
void *  context,
const uint8_t *  c,
uint8_t *  p,
size_t  length 
)

ECB decryption.

Parameters
[in]cipherCipher algorithm
[in]contextCipher algorithm context
[in]cCiphertext to be decrypted
[out]pPlaintext resulting from the decryption
[in]lengthTotal number of data bytes to be decrypted
Returns
Error code

Definition at line 365 of file same54_crypto_cipher.c.

◆ ecbEncrypt()

error_t ecbEncrypt ( const CipherAlgo cipher,
void *  context,
const uint8_t *  p,
uint8_t *  c,
size_t  length 
)

ECB encryption.

Parameters
[in]cipherCipher algorithm
[in]contextCipher algorithm context
[in]pPlaintext to be encrypted
[out]cCiphertext resulting from the encryption
[in]lengthTotal number of data bytes to be encrypted
Returns
Error code

Definition at line 301 of file same54_crypto_cipher.c.

◆ gcmDecrypt()

error_t gcmDecrypt ( GcmContext context,
const uint8_t *  iv,
size_t  ivLen,
const uint8_t *  a,
size_t  aLen,
const uint8_t *  c,
uint8_t *  p,
size_t  length,
const uint8_t *  t,
size_t  tLen 
)

Authenticated decryption using GCM.

Parameters
[in]contextPointer to the GCM context
[in]ivInitialization vector
[in]ivLenLength of the initialization vector
[in]aAdditional authenticated data
[in]aLenLength of the additional data
[in]cCiphertext to be decrypted
[out]pPlaintext resulting from the decryption
[in]lengthTotal number of data bytes to be decrypted
[in]tAuthentication tag
[in]tLenLength of the authentication tag
Returns
Error code

Make sure the GCM context is valid

Make sure the GCM context is valid

Definition at line 1359 of file same54_crypto_cipher.c.

◆ gcmEncrypt()

error_t gcmEncrypt ( GcmContext context,
const uint8_t *  iv,
size_t  ivLen,
const uint8_t *  a,
size_t  aLen,
const uint8_t *  p,
uint8_t *  c,
size_t  length,
uint8_t *  t,
size_t  tLen 
)

Authenticated encryption using GCM.

Parameters
[in]contextPointer to the GCM context
[in]ivInitialization vector
[in]ivLenLength of the initialization vector
[in]aAdditional authenticated data
[in]aLenLength of the additional data
[in]pPlaintext to be encrypted
[out]cCiphertext resulting from the encryption
[in]lengthTotal number of data bytes to be encrypted
[out]tAuthentication tag
[in]tLenLength of the authentication tag
Returns
Error code

Definition at line 1303 of file same54_crypto_cipher.c.

◆ gcmGenerateHashSubKey()

void gcmGenerateHashSubKey ( AesContext context)

Generate hash subkey.

Parameters
[in]contextAES algorithm context

Definition at line 879 of file same54_crypto_cipher.c.

◆ gcmGeneratePreCounterBlock()

void gcmGeneratePreCounterBlock ( const uint8_t *  iv,
size_t  ivLen,
uint32_t *  j 
)

Generate pre-counter block.

Parameters
[in]ivInitialization vector
[in]ivLenLength of the initialization vector
[out]jResulting value of the pre-counter block (J0)

Definition at line 969 of file same54_crypto_cipher.c.

◆ gcmGenerateTag()

void gcmGenerateTag ( AesContext context,
const uint32_t *  j,
size_t  aadLen,
size_t  dataLen,
uint8_t *  tag 
)

Calculate authentication tag.

Parameters
[in]contextAES algorithm context
[in]jValue of the pre-counter block (J0)
[in]aadLenLength of the additional data, in bytes
[in]dataLenLength of the payload data, in bytes
[out]tagAuthentication tag

Definition at line 1196 of file same54_crypto_cipher.c.

◆ gcmInit()

error_t gcmInit ( GcmContext context,
const CipherAlgo cipherAlgo,
void *  cipherContext 
)

Initialize GCM context.

Parameters
[in]contextPointer to the GCM context
[in]cipherAlgoCipher algorithm
[in]cipherContextPointer to the cipher algorithm context
Returns
Error code

Definition at line 1268 of file same54_crypto_cipher.c.

◆ gcmProcessAuthData()

void gcmProcessAuthData ( const uint8_t *  aad,
size_t  aadLen 
)

Process additional authenticated data.

Parameters
[in]aadAdditional authenticated data
[in]aadLenLength of the additional data

Definition at line 1044 of file same54_crypto_cipher.c.

◆ gcmProcessData()

void gcmProcessData ( const uint32_t *  j,
const uint8_t *  input,
uint8_t *  output,
size_t  length 
)

Encrypt/decrypt payload data.

Parameters
[in]jValue of the pre-counter block (J0)
[in]inputData to be encrypted/decrypted
[out]outputData resulting from the encryption/decryption process
[in]lengthTotal number of data bytes to be processed

Definition at line 1083 of file same54_crypto_cipher.c.

◆ gcmSetMode()

void gcmSetMode ( AesContext context,
uint32_t  mode 
)

Set GCM operation mode.

Parameters
[in]contextAES algorithm context
[in]modeOperation mode (encryption or decryption)

Definition at line 922 of file same54_crypto_cipher.c.

◆ gcmUpdateGhash()

void gcmUpdateGhash ( const uint8_t *  data)

Update GHASH value.

Parameters
[in]dataInput block of data

Definition at line 941 of file same54_crypto_cipher.c.

◆ ofbEncrypt()

error_t ofbEncrypt ( const CipherAlgo cipher,
void *  context,
uint_t  s,
uint8_t *  iv,
const uint8_t *  p,
uint8_t *  c,
size_t  length 
)

OFB encryption.

Parameters
[in]cipherCipher algorithm
[in]contextCipher algorithm context
[in]sSize of the plaintext and ciphertext segments
[in,out]ivInitialization vector
[in]pPlaintext to be encrypted
[out]cCiphertext resulting from the encryption
[in]lengthTotal number of data bytes to be encrypted
Returns
Error code

Definition at line 791 of file same54_crypto_cipher.c.