gnutls_x509_privkey_generate3
Api function
Usage
#include <gnutls/x509.h>
int gnutls_x509_privkey_generate(gnutls_x509_privkey_t key, gnutls_pk_algorithm_t algo, unsigned int bits, unsigned int flags);
Arguments
gnutls_x509_privkey_t key
|
an initialized key |
|---|---|
gnutls_pk_algorithm_t algo
|
is one of the algorithms in |
unsigned int bits
|
the size of the parameters to generate |
unsigned int flags
|
Must be zero or flags from |
Overview
This function will generate a random private key. Note that this function must be called on an initialized private key.
The flag GNUTLS_PRIVKEY_FLAG_PROVABLE instructs the key generation process to use algorithms like Shawe-Taylor (from FIPS PUB186-4) which generate provable parameters out of a seed for RSA and DSA keys. See gnutls_x509_privkey_generate2() for more information.
Note that when generating an elliptic curve key, the curve can be substituted in the place of the bits parameter using the GNUTLS_CURVE_TO_BITS() macro. The input to the macro is any curve from gnutls_ecc_curve_t.
For DSA keys, if the subgroup size needs to be specified check the GNUTLS_SUBGROUP_TO_BITS() macro.
It is recommended to do not set the number of bits directly, use gnutls_sec_param_to_pk_bits() instead .
See also gnutls_privkey_generate(), gnutls_x509_privkey_generate2().
Returns
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.
Releases
10 releases since Debian 4.0 (Etch); the text changed 9 times.