`gnutls_aead_cipher_decrypt` ( 3 )

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/

Исходный текст на man7.org

gnutls_aead_cipher_decrypt ( 3 )