LTC eDMA DES driver

Overview

This section describes the programming interface of the LTC EDMA DES driver.

Functions
status_t	LTC_DES_EncryptEcbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t key[LTC_DES_KEY_SIZE])
	Encrypts DES using ECB block mode. More...
status_t	LTC_DES_DecryptEcbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t key[LTC_DES_KEY_SIZE])
	Decrypts DES using ECB block mode. More...
status_t	LTC_DES_EncryptCbcEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key[LTC_DES_KEY_SIZE])
	Encrypts DES using CBC block mode. More...
status_t	LTC_DES_DecryptCbcEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key[LTC_DES_KEY_SIZE])
	Decrypts DES using CBC block mode. More...
status_t	LTC_DES_EncryptCfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key[LTC_DES_KEY_SIZE])
	Encrypts DES using CFB block mode. More...
status_t	LTC_DES_DecryptCfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key[LTC_DES_KEY_SIZE])
	Decrypts DES using CFB block mode. More...
status_t	LTC_DES_EncryptOfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key[LTC_DES_KEY_SIZE])
	Encrypts DES using OFB block mode. More...
status_t	LTC_DES_DecryptOfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key[LTC_DES_KEY_SIZE])
	Decrypts DES using OFB block mode. More...
status_t	LTC_DES2_EncryptEcbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Encrypts triple DES using ECB block mode with two keys. More...
status_t	LTC_DES2_DecryptEcbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Decrypts triple DES using ECB block mode with two keys. More...
status_t	LTC_DES2_EncryptCbcEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Encrypts triple DES using CBC block mode with two keys. More...
status_t	LTC_DES2_DecryptCbcEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Decrypts triple DES using CBC block mode with two keys. More...
status_t	LTC_DES2_EncryptCfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Encrypts triple DES using CFB block mode with two keys. More...
status_t	LTC_DES2_DecryptCfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Decrypts triple DES using CFB block mode with two keys. More...
status_t	LTC_DES2_EncryptOfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Encrypts triple DES using OFB block mode with two keys. More...
status_t	LTC_DES2_DecryptOfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE])
	Decrypts triple DES using OFB block mode with two keys. More...
status_t	LTC_DES3_EncryptEcbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Encrypts triple DES using ECB block mode with three keys. More...
status_t	LTC_DES3_DecryptEcbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Decrypts triple DES using ECB block mode with three keys. More...
status_t	LTC_DES3_EncryptCbcEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Encrypts triple DES using CBC block mode with three keys. More...
status_t	LTC_DES3_DecryptCbcEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Decrypts triple DES using CBC block mode with three keys. More...
status_t	LTC_DES3_EncryptCfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Encrypts triple DES using CFB block mode with three keys. More...
status_t	LTC_DES3_DecryptCfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Decrypts triple DES using CFB block mode with three keys. More...
status_t	LTC_DES3_EncryptOfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *plaintext, uint8_t *ciphertext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Encrypts triple DES using OFB block mode with three keys. More...
status_t	LTC_DES3_DecryptOfbEDMA (LTC_Type *base, ltc_edma_handle_t *handle, const uint8_t *ciphertext, uint8_t *plaintext, uint32_t size, const uint8_t iv[LTC_DES_IV_SIZE], const uint8_t key1[LTC_DES_KEY_SIZE], const uint8_t key2[LTC_DES_KEY_SIZE], const uint8_t key3[LTC_DES_KEY_SIZE])
	Decrypts triple DES using OFB block mode with three keys. More...

Function Documentation

status_t LTC_DES_EncryptEcbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Encrypts DES using ECB block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes. Must be multiple of 8 bytes.
	key	Input key to use for encryption

Returns

Status from encrypt/decrypt operation

status_t LTC_DES_DecryptEcbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Decrypts DES using ECB block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes. Must be multiple of 8 bytes.
	key	Input key to use for decryption

Returns

Status from encrypt/decrypt operation

status_t LTC_DES_EncryptCbcEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Encrypts DES using CBC block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Ouput ciphertext
	size	Size of input and output data in bytes
	iv	Input initial vector to combine with the first plaintext block. The iv does not need to be secret, but it must be unpredictable.
	key	Input key to use for encryption

Returns

Status from encrypt/decrypt operation

status_t LTC_DES_DecryptCbcEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Decrypts DES using CBC block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input data in bytes
	iv	Input initial vector to combine with the first plaintext block. The iv does not need to be secret, but it must be unpredictable.
	key	Input key to use for decryption

Returns

Status from encrypt/decrypt operation

status_t LTC_DES_EncryptCfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Encrypts DES using CFB block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
	size	Size of input data in bytes
	iv	Input initial block.
	key	Input key to use for encryption
[out]	ciphertext	Output ciphertext

Returns

Status from encrypt/decrypt operation

status_t LTC_DES_DecryptCfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Decrypts DES using CFB block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes
	iv	Input initial block.
	key	Input key to use for decryption

Returns

Status from encrypt/decrypt operation

status_t LTC_DES_EncryptOfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Encrypts DES using OFB block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes
	iv	Input unique input vector. The OFB mode requires that the IV be unique for each execution of the mode under the given key.
	key	Input key to use for encryption

Returns

Status from encrypt/decrypt operation

status_t LTC_DES_DecryptOfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key[LTC_DES_KEY_SIZE]
	)

Decrypts DES using OFB block mode.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes. Must be multiple of 8 bytes.
	iv	Input unique input vector. The OFB mode requires that the IV be unique for each execution of the mode under the given key.
	key	Input key to use for decryption

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_EncryptEcbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using ECB block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes. Must be multiple of 8 bytes.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_DecryptEcbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using ECB block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes. Must be multiple of 8 bytes.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_EncryptCbcEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using CBC block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes
	iv	Input initial vector to combine with the first plaintext block. The iv does not need to be secret, but it must be unpredictable.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_DecryptCbcEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using CBC block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes
	iv	Input initial vector to combine with the first plaintext block. The iv does not need to be secret, but it must be unpredictable.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_EncryptCfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using CFB block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes
	iv	Input initial block.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_DecryptCfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using CFB block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes
	iv	Input initial block.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_EncryptOfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using OFB block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes
	iv	Input unique input vector. The OFB mode requires that the IV be unique for each execution of the mode under the given key.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES2_DecryptOfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using OFB block mode with two keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes
	iv	Input unique input vector. The OFB mode requires that the IV be unique for each execution of the mode under the given key.
	key1	First input key for key bundle
	key2	Second input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_EncryptEcbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using ECB block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes. Must be multiple of 8 bytes.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_DecryptEcbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using ECB block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes. Must be multiple of 8 bytes.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_EncryptCbcEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using CBC block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input data in bytes
	iv	Input initial vector to combine with the first plaintext block. The iv does not need to be secret, but it must be unpredictable.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_DecryptCbcEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using CBC block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes
	iv	Input initial vector to combine with the first plaintext block. The iv does not need to be secret, but it must be unpredictable.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_EncryptCfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using CFB block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and ouput data in bytes
	iv	Input initial block.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_DecryptCfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using CFB block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input data in bytes
	iv	Input initial block.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_EncryptOfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	plaintext,
		uint8_t *	ciphertext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Encrypts triple DES using OFB block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	plaintext	Input plaintext to encrypt
[out]	ciphertext	Output ciphertext
	size	Size of input and output data in bytes
	iv	Input unique input vector. The OFB mode requires that the IV be unique for each execution of the mode under the given key.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation

status_t LTC_DES3_DecryptOfbEDMA	(	LTC_Type *	base,
		ltc_edma_handle_t *	handle,
		const uint8_t *	ciphertext,
		uint8_t *	plaintext,
		uint32_t	size,
		const uint8_t	iv[LTC_DES_IV_SIZE],
		const uint8_t	key1[LTC_DES_KEY_SIZE],
		const uint8_t	key2[LTC_DES_KEY_SIZE],
		const uint8_t	key3[LTC_DES_KEY_SIZE]
	)

Decrypts triple DES using OFB block mode with three keys.

Parameters

	base	LTC peripheral base address
	handle	pointer to ltc_edma_handle_t structure which stores the transaction state.
	ciphertext	Input ciphertext to decrypt
[out]	plaintext	Output plaintext
	size	Size of input and output data in bytes
	iv	Input unique input vector. The OFB mode requires that the IV be unique for each execution of the mode under the given key.
	key1	First input key for key bundle
	key2	Second input key for key bundle
	key3	Third input key for key bundle

Returns

Status from encrypt/decrypt operation