Aes_key_wrap

aes_key_wrap
void	do_aes128_key_wrap (const uint8_t plaintext[], uint8_t wrapped_ciphertext[], uint32_t expanded_kek[])
	Encrypt and wrap plaintext key. More...
uint32_t	do_aes128_key_unwrap (const uint8_t wrapped_ciphertext[], uint8_t unwrapped_plaintext[], uint32_t expanded_kek[])
	Decrypt and unwrap wrapped key. More...

Usage Information

Function Documentation

uint32_t do_aes128_key_unwrap	(	const uint8_t	wrapped_ciphertext[],
		uint8_t	unwrapped_plaintext[],
		uint32_t	expanded_kek[]
	)

Decrypt and unwrap wrapped key.

Parameters

wrapped_ciphertext	48 byte wrapped input array
unwrapped_plaintext	48 byte plaintext output array, Note: this includes an 8 byte IV header that is added to start of the original 40 input bytes by the wrapping
expanded_kek	Expanded kek (64 ints on host, 4 ints on device)

Return values

-1	on error
0	on success

void do_aes128_key_wrap	(	const uint8_t	plaintext[],
		uint8_t	wrapped_ciphertext[],
		uint32_t	expanded_kek[]
	)

Encrypt and wrap plaintext key.

Parameters

plaintext	40 byte plaintext input array
wrapped_ciphertext	48 byte wrapped output array
expanded_kek	Expanded kek (64 bytes)