devcrypto_aead_cipher_op

Decrypt data using the specified AEAD cipher algorithm state

Synopsis:

#include <dev/crypto/devcrypto_plugin.h>

typedef int(* devcrypto_aead_cipher_op_decrypt)(devcrypto_state_ctx_t *sctx,
            const uint8_t *in,
            uint32_t insize,
            uint8_t *aad,
            uint32_t aadsize,
            uint8_t *tag,
            uint32_t tagsize,
            uint8_t *out,
            uint32_t *outsize);

Arguments:

sctx: The state context.
in: The ciphertext buffer to decrypt.
insize: The size of the input buffer.
aad: The Additional Authentication Data (AAD) buffer.
aadsize: The size of the AAD buffer.
tag: The tag value to use for decryption and verification.
tagsize: The size of the tag buffer.
out: The decrypted ciphertext (plaintext).
outsize: The size of the output buffer and the decrypted data.

Library:

devcr

Description:

Some algorithms (e.g., AES-CCM) require the tag value in the initialization phase.

Returns:

EOK if successful or errno if an error occurred.