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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_privkey_generate2(3) gnutls gnutls_privkey_generate2(3)
gnutls_privkey_generate2 - API function
#include <gnutls/abstract.h>
int gnutls_privkey_generate2(gnutls_privkey_t pkey,
gnutls_pk_algorithm_t algo, unsigned int bits, unsigned int flags,
const gnutls_keygen_data_st * data, unsigned data_size);
gnutls_privkey_t pkey
The private key
gnutls_pk_algorithm_t algo
is one of the algorithms in gnutls_pk_algorithm_t.
unsigned int bits
the size of the modulus
unsigned int flags
Must be zero or flags from gnutls_privkey_flags_t.
const gnutls_keygen_data_st * data
Allow specifying gnutls_keygen_data_st types such as the
seed to be used.
unsigned data_size
The number of data available.
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. On DSA keys the PQG parameters are generated using the seed,
while on RSA the two primes. To specify an explicit seed (by default
a random seed is used), use the data with a GNUTLS_KEYGEN_SEED type.
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.
To export the generated keys in memory or in files it is recommended
to use the PKCS8 form as it can handle all key types, and can store
additional parameters such as the seed, in case of provable RSA or
DSA keys. Generated keys can be exported in memory using
gnutls_privkey_export_x509(), and then with
gnutls_x509_privkey_export2_pkcs8().
If key generation is part of your application, avoid setting the
number of bits directly, and instead use
gnutls_sec_param_to_pk_bits(). That way the generated keys will
adapt to the security levels of the underlying GnuTLS library.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
error value.
3.5.0
Report bugs to <bugs@gnutls.org>.
Home page: http://www.gnutls.org
Copyright © 2001-2017 Free Software Foundation, Inc., and others.
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.
The full documentation for gnutls is maintained as a Texinfo manual.
If the /usr/share/doc/gnutls/ directory does not contain the HTML
form visit
http://www.gnutls.org/manual/
This page is part of the GnuTLS (GnuTLS Transport Layer Security
Library) project. Information about the project can be found at
⟨http://www.gnutls.org/⟩. If you have a bug report for this manual
page, send it to bugs@gnutls.org.. This page was obtained from the
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COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
gnutls 3.6.1 gnutls_privkey_generate2(3)
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