gnutls_pubkey_get_key_id(3) | gnutls | 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);
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>.
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