DPDK 22.11.5
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#include <rte_crypto_sym.h>
Data Fields | |
enum rte_crypto_cipher_operation | op |
enum rte_crypto_cipher_algorithm | algo |
struct { | |
const uint8_t * data | |
uint16_t length | |
} | key |
struct { | |
uint16_t offset | |
uint16_t length | |
} | iv |
uint32_t | dataunit_len |
Symmetric Cipher Setup Data.
This structure contains data relating to Cipher (Encryption and Decryption) use to create a session.
Definition at line 201 of file rte_crypto_sym.h.
enum rte_crypto_cipher_operation op |
This parameter determines if the cipher operation is an encrypt or a decrypt operation. For the RC4 algorithm and the F8/CTR modes, only encrypt operations are valid.
Definition at line 202 of file rte_crypto_sym.h.
enum rte_crypto_cipher_algorithm algo |
Cipher algorithm
Definition at line 207 of file rte_crypto_sym.h.
const uint8_t* data |
pointer to key data
Definition at line 211 of file rte_crypto_sym.h.
uint16_t length |
key length in bytes
Length of valid IV data.
Definition at line 212 of file rte_crypto_sym.h.
struct { ... } key |
Cipher key
In case the PMD supports RTE_CRYPTODEV_FF_CIPHER_WRAPPED_KEY, the original key data provided may be wrapped(encrypted) using key wrap algorithm such as AES key wrap (rfc3394) and hence length of the key may increase beyond the PMD advertised supported key size. PMD shall validate the key length and report EMSGSIZE error while configuring the session and application can skip checking the capability key length in such cases.
For the RTE_CRYPTO_CIPHER_AES_F8 mode of operation, key.data will point to a concatenation of the AES encryption key followed by a keymask. As per RFC3711, the keymask should be padded with trailing bytes to match the length of the encryption key used.
Cipher key length is in bytes. For AES it can be 128 bits (16 bytes), 192 bits (24 bytes) or 256 bits (32 bytes).
For the RTE_CRYPTO_CIPHER_AES_F8 mode of operation, key.length should be set to the combined length of the encryption key and the keymask. Since the keymask and the encryption key are the same size, key.length should be set to 2 x the AES encryption key length.
For the AES-XTS mode of operation:
uint16_t offset |
Starting point for Initialisation Vector or Counter, specified as number of bytes from start of crypto operation (rte_crypto_op).
For optimum performance, the data pointed to SHOULD be 8-byte aligned.
Definition at line 246 of file rte_crypto_sym.h.
struct { ... } iv |
Initialisation vector parameters
uint32_t dataunit_len |
When RTE_CRYPTODEV_FF_CIPHER_MULTIPLE_DATA_UNITS is enabled, this is the data-unit length of the algorithm, otherwise or when the value is 0, use the operation length. The value should be in the range defined by the dataunit_set field in the cipher capability.
Definition at line 289 of file rte_crypto_sym.h.