gnutls_cipher_decrypt2(3) gnutls gnutls_cipher_decrypt2(3)

gnutls_cipher_decrypt2 - API function

#include <gnutls/crypto.h>

int gnutls_cipher_decrypt2(gnutls_cipher_hd_t handle, const void * ctext, size_t ctext_len, void * ptext, size_t ptext_len);

is a gnutls_cipher_hd_t type
the data to decrypt
the length of data to decrypt
the decrypted data
the available length for decrypted data

This function will decrypt the given data using the algorithm specified by the context. For block ciphers the ctext_len must be a multiple of the block size. For the supported ciphers the plaintext data length will equal the ciphertext size.

Note that in AEAD ciphers, this will not check the tag. You will need to compare the tag sent with the value returned from gnutls_cipher_tag().

Zero or a negative error code on error.

2.12.0

Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org

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Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.

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3.8.2 gnutls