qsc_aes_gcm256_state Struct Reference

State structure for AES-based Galois Counter Mode (GCM-256). More...

#include <aes.h>

Data Fields
qsc_aes_state	cstate
uint8_t	C [QSC_AES_BLOCK_SIZE]
uint8_t	H [QSC_AES_BLOCK_SIZE]
uint8_t	J0 [QSC_AES_BLOCK_SIZE]
uint8_t	S [QSC_AES_BLOCK_SIZE]
uint64_t	aadlen
uint64_t	ctlen
bool	encrypt

Detailed Description

State structure for AES-based Galois Counter Mode (GCM-256).

Combines an AES-256 cipher ctx with a Galois counter mode to implement an AEAD scheme.

See also

qsc_aes_gcm256_set_associated, qsc_aes_gcm256_decrypt, qsc_aes_gcm256_dispose, qsc_aes_gcm256_encrypt, qsc_aes_gcm256_initialize

Field Documentation

aadlen

uint64_t aadlen

[uint64_t] AAD length in bits

C

uint8_t C[QSC_AES_BLOCK_SIZE]

uint8_t[QSC_AES_BLOCK_SIZE] Current counter block

cstate

qsc_aes_state cstate

[struct] Underlying AES cipher ctx

ctlen

uint64_t ctlen

[uint64_t] Ciphertext length in bits

encrypt

bool encrypt

[bool] Initialized for encryption

H

uint8_t H[QSC_AES_BLOCK_SIZE]

uint8_t[QSC_AES_BLOCK_SIZE] Hash subkey H = AES(K,0U)

J0

uint8_t J0[QSC_AES_BLOCK_SIZE]

uint8_t[QSC_AES_BLOCK_SIZE] Pre-counter block

S

uint8_t S[QSC_AES_BLOCK_SIZE]

uint8_t[QSC_AES_BLOCK_SIZE] GHASH accumulator

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The documentation for this struct was generated from the following file:

• C:/Users/stepp/Documents/Visual Studio 2022/Projects/C/QSC/QSC/aes.h