Manpages - gnutls_pubkey_get_key_id.3

gnutls_pubkey_get_key_id - API function

#include <gnutls/abstract.h>

int gnutls_pubkey_get_key_id(gnutls_pubkey_t */key/, unsigned int flags, unsigned char * output_data, size_t * output_data_size);*

gnutls_pubkey_t key

Holds the public key

unsigned int flags

should be one of the flags from gnutls_keyid_flags_t

unsigned char * output_data

will contain the key ID

size_t * output_data_size

holds the size of output_data (and will be replaced by the actual size of parameters)

This function will return a unique ID that depends on the public key parameters. This ID can be used in checking whether a certificate corresponds to the given public key.

If the buffer provided is not long enough to hold the output, then output_data_size is updated and *GNUTLS_E_SHORT_MEMORY_BUFFER will be returned. The output will normally be a SHA-1 hash output, which is 20 bytes.

In case of failure a negative error code will be returned, and 0 on success.

2.12.0

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

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