JunMo Hong / stm-spirit1-rf-driver_for_cubebite

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AES Exported Functions
Functions

AES Exported Functions
[AES]

Functions

void SpiritAesMode (SpiritFunctionalState xNewState)
 Enables or Disables the AES engine.
void SpiritAesWriteDataIn (uint8_t *pcBufferDataIn, uint8_t cDataLength)
 Writes the data to encrypt or decrypt, or the encryption key for the derive decryption key operation into the AES_DATA_IN registers.
void SpiritAesReadDataOut (uint8_t *pcBufferDataOut, uint8_t cDataLength)
 Returns the encrypted or decrypted data or the decription key from the AES_DATA_OUT register.
void SpiritAesWriteKey (uint8_t *pcKey)
 Writes the encryption key into the AES_KEY_IN register.
void SpiritAesReadKey (uint8_t *pcKey)
 Returns the encryption/decryption key from the AES_KEY_IN register.
void SpiritAesDeriveDecKeyFromEnc (void)
 Derives the decryption key from a given encryption key.
void SpiritAesExecuteEncryption (void)
 Executes the encryption operation.
void SpiritAesExecuteDecryption (void)
 Executes the decryption operation.
void SpiritAesDeriveDecKeyExecuteDec (void)
 Executes the key derivation and the decryption operation.

Function Documentation

void SpiritAesDeriveDecKeyExecuteDec ( void   )

Executes the key derivation and the decryption operation.

Parameters:
None.
Return values:
None.

Definition at line 295 of file SPIRIT_Aes.c.

void SpiritAesDeriveDecKeyFromEnc ( void   )

Derives the decryption key from a given encryption key.

Parameters:
None.
Return values:
None.

Definition at line 256 of file SPIRIT_Aes.c.

void SpiritAesExecuteDecryption ( void   )

Executes the decryption operation.

Parameters:
None.
Return values:
None.

Definition at line 282 of file SPIRIT_Aes.c.

void SpiritAesExecuteEncryption ( void   )

Executes the encryption operation.

Parameters:
None.
Return values:
None.

Definition at line 269 of file SPIRIT_Aes.c.

void SpiritAesMode ( SpiritFunctionalState  xNewState )

Enables or Disables the AES engine.

Parameters:
xNewStatenew state for AES engine. This parameter can be: S_ENABLE or S_DISABLE.
Return values:
None

Definition at line 118 of file SPIRIT_Aes.c.

void SpiritAesReadDataOut ( uint8_t *  pcBufferDataOut,
uint8_t  cDataLength 
)

Returns the encrypted or decrypted data or the decription key from the AES_DATA_OUT register.

Parameters:
pcBufferDataOutpointer to the user data buffer. The AES_DATA_OUT[0] register value will be put as first element of the buffer (MSB), while the AES_DAT_OUT[cDataLength-1] register value will be put as last element of the buffer (LSB). This parameter is a uint8_t*.
cDataLengthlength of data to read in bytes. This parameter is a uint8_t.
Return values:
None

Definition at line 184 of file SPIRIT_Aes.c.

void SpiritAesReadKey ( uint8_t *  pcKey )

Returns the encryption/decryption key from the AES_KEY_IN register.

Parameters:
pcKeypointer to the buffer of 4 words (16 bytes) containing the AES key. The first byte of the buffer shall be the most significant byte AES_KEY_0 of the AES key. The last byte of the buffer shall be the less significant byte AES_KEY_15 of the AES key. This parameter is an uint8_t*.
Return values:
None

Definition at line 236 of file SPIRIT_Aes.c.

void SpiritAesWriteDataIn ( uint8_t *  pcBufferDataIn,
uint8_t  cDataLength 
)

Writes the data to encrypt or decrypt, or the encryption key for the derive decryption key operation into the AES_DATA_IN registers.

Parameters:
pcBufferDataInpointer to the user data buffer. The first byte of the array shall be the MSB byte and it will be put in the AES_DATA_IN[0] register, while the last one shall be the LSB and it will be put in the AES_DATA_IN[cDataLength-1] register. If data to write are less than 16 bytes the remaining AES_DATA_IN registers will be filled with bytes equal to 0. This parameter is an uint8_t*.
cDataLengthlength of data in bytes. This parameter is an uint8_t.
Return values:
None

Definition at line 154 of file SPIRIT_Aes.c.

void SpiritAesWriteKey ( uint8_t *  pcKey )

Writes the encryption key into the AES_KEY_IN register.

Parameters:
pcKeypointer to the buffer of 4 words containing the AES key. The first byte of the buffer shall be the most significant byte AES_KEY_0 of the AES key. The last byte of the buffer shall be the less significant byte AES_KEY_15 of the AES key. This parameter is an uint8_t*.
Return values:
None

Definition at line 215 of file SPIRIT_Aes.c.

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