gnutls\_sec\_param\_to\_pk\_bits(3) gnutls gnutls\_sec\_param\_to\_pk\_bits(3)

# [NAME](#NAME)

gnutls\_sec\_param\_to\_pk\_bits - API function

# [SYNOPSIS](#SYNOPSIS)

**#include <gnutls/gnutls.h>**

**unsigned int gnutls\_sec\_param\_to\_pk\_bits(gnutls\_pk\_algorithm\_t algo, gnutls\_sec\_param\_t param);**

# [ARGUMENTS](#ARGUMENTS)

[gnutls\_pk\_algorithm\_t algo](#gnutls_pk_algorithm_t)

is a public key algorithm

[gnutls\_sec\_param\_t param](#gnutls_sec_param_t)

is a security parameter

# [DESCRIPTION](#DESCRIPTION)

When generating private and public key pairs a difficult question is which size of "bits" the modulus will be in RSA and the group size in DSA. The easy answer is 1024, which is also wrong. This function will convert a human understandable security parameter to an appropriate size for the specific algorithm.

# [RETURNS](#RETURNS)

The number of bits, or (0).

# [SINCE](#SINCE)

2.12.0

# [REPORTING BUGS](#REPORTING_BUGS)

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

# [COPYRIGHT](#COPYRIGHT)

Copyright © 2001-2023 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.

# [SEE ALSO](#SEE_ALSO)

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

[https://www.gnutls.org/manual/](https://www.gnutls.org/manual/)

3.8.13 gnutls

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Document: gnutls_sec_param_to_pk_bits(3) from gnutls 3.8.13-r3 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls