ox_des.h

Back to the files list

Data Encryption Standard syscalls. More...

Data Structures
struct	cx_des_key_s
	DES key container. More...

Macros
#define	CX_DES_BLOCK_SIZE   8
	Block size of the DES in bytes. More...

Typedefs
typedef struct cx_des_key_s	cx_des_key_t
	Convenience type. More...

Functions
SYSCALL cx_err_t	cx_des_set_key_hw (const cx_des_key_t *keys, uint32_t mode)
	Sets a DES key in hardware. More...
SYSCALL void	cx_des_reset_hw (void)
	Resets the DES context. More...
SYSCALL void	cx_des_block_hw (const unsigned char *inblock, unsigned char *outblock)
	Encrypts or decrypts a block with DES. More...

Detailed Description

Data Encryption Standard syscalls.

This file contains DES definitions and functions:

• Set the DES key in memory
• Encrypt a 64-bit block
• Reset the DES context

Macro Definition Documentation

CX_DES_BLOCK_SIZE

#define CX_DES_BLOCK_SIZE   8

Block size of the DES in bytes.

Typedef Documentation

cx_des_key_t

typedef struct cx_des_key_s cx_des_key_t

Convenience type.

See cx_des_key_s.

Function Documentation

cx_des_block_hw()

SYSCALL void cx_des_block_hw	(	const unsigned char *	inblock,
		unsigned char *	outblock
)

Encrypts or decrypts a block with DES.

Parameters

[in]	inblock	Pointer to the block.
[out]	outblock	Buffer for the output.

cx_des_reset_hw()

SYSCALL void cx_des_reset_hw

(

void

)

Resets the DES context.

cx_des_set_key_hw()

SYSCALL cx_err_t cx_des_set_key_hw	(	const cx_des_key_t *	keys,
		uint32_t	mode
)

Sets a DES key in hardware.

Parameters

[in]	keys	DES key.
[in]	mode	Operation for which the key will be used.

Returns

Error code:

• CX_OK on success
• INVALID_PARAMETER

Back to the files list

---

Did you find this page helpful?

How would you improve this page for developers?

I am a developer.
Contributors will be chosen randomly to receive rewards. Check this box to send your email and participate.

Ledger collects your email address to send you rewards for your contribution to improve the Developer Portal documentation. Learn more about how we manage your data and your rights.

By providing your email address, you consent that Ledger may contact you for rewards delivery purposes. If you are part of the randomly selected contributors, we will send you an email to ask for your physical address and if necessary, ask you for additional information on the suggestion you made. Your information will only be available to Ledger and will be retained for no longer than 90 days. It may be transferred to non-European countries that ensure an adequate level of protection or under the standard contractual clauses adopted by the EU Commission.

Please note that you may withdraw your consent at any time, access your data and request their rectification or deletion. You may also request the limitation of the processing of your data. To exercise your rights or for any question on the processing of your data, please contact LEDGER’s Data Protection Officer here. If nevertheless you believe LEDGER did not adequately address your concerns and mishandled your data, you may lodge a complaint with the personal data protection authority of your country.