Функции API (API function)
Имя (Name)
gnutls_aead_cipher_decrypt - API function
Синопсис (Synopsis)
#include <gnutls/crypto.h>
int gnutls_aead_cipher_decrypt(gnutls_aead_cipher_hd_t handle,
const void * nonce, size_t nonce_len, const void * auth, size_t
auth_len, size_t tag_size, const void * ctext, size_t ctext_len,
void * ptext, size_t * ptext_len);
Аргументы (Arguments)
gnutls_aead_cipher_hd_t handle
is a gnutls_aead_cipher_hd_t type.
const void * nonce
the nonce to set
size_t nonce_len
The length of the nonce
const void * auth
additional data to be authenticated
size_t auth_len
The length of the data
size_t tag_size
The size of the tag to use (use zero for the default)
const void * ctext
the data to decrypt (including the authentication
tag)
size_t ctext_len
the length of data to decrypt (includes tag size)
void * ptext
the decrypted data
size_t * ptext_len
the length of decrypted data (initially must hold the
maximum available size)
Описание (Description)
This function will decrypt the given data using the algorithm
specified by the context. This function must be provided the
complete data to be decrypted, including the authentication tag.
On several AEAD ciphers, the authentication tag is appended to
the ciphertext, though this is not a general rule. This function
will fail if the tag verification fails.
Возвращаемое значение (Return value)
Zero or a negative error code on verification failure or other
error.
Сообщение об ошибках (Reporting bugs)
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
Смотри также (See also)
The full documentation for gnutls is maintained as a Texinfo
manual. If the /usr/share/doc/gnutls/ directory does not contain
the HTML form visit
https://www.gnutls.org/manual/
