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@deftypefun {int} {gnutls_pkcs12_bag_enc_info} (gnutls_pkcs12_bag_t @var{bag}, unsigned int * @var{schema}, unsigned int * @var{cipher}, void * @var{salt}, unsigned int * @var{salt_size}, unsigned int * @var{iter_count}, char ** @var{oid})
@var{bag}: The bag
@var{schema}: indicate the schema as one of @code{gnutls_pkcs_encrypt_flags_t}
@var{cipher}: the cipher used as @code{gnutls_cipher_algorithm_t}
@var{salt}: PBKDF2 salt (if non-NULL then @code{salt_size} initially holds its size)
@var{salt_size}: PBKDF2 salt size
@var{iter_count}: PBKDF2 iteration count
@var{oid}: if non-NULL it will contain an allocated null-terminated variable with the OID
This function will provide information on the encryption algorithms used
in an encrypted bag. If the structure algorithms
are unknown the code @code{GNUTLS_E_UNKNOWN_CIPHER_TYPE} will be returned,
and only @code{oid} , will be set. That is, @code{oid} will be set on encrypted bags
whether supported or not. It must be deinitialized using @code{gnutls_free()} .
The other variables are only set on supported structures.
@strong{Returns:} @code{GNUTLS_E_INVALID_REQUEST} if the provided bag isn't encrypted,
@code{GNUTLS_E_UNKNOWN_CIPHER_TYPE} if the structure's encryption isn't supported, or
another negative error code in case of a failure. Zero on success.
@end deftypefun
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