RSA_size - get RSA modulus size
#include <openssl/rsa.h> int RSA_size(const RSA *rsa);
RSA_size(3openssl) OpenSSL RSA_size(3openssl)
NAME
RSA_size - get RSA modulus size
SYNOPSIS
#include <openssl/rsa.h>
int RSA_size(const RSA *rsa);
DESCRIPTION
This function returns the RSA modulus size in bytes. It can be used to
determine how much memory must be allocated for an RSA encrypted value.
rsa->n must not be NULL.
RETURN VALUE
The size in bytes.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | library/security/openssl |
+---------------+--------------------------+
|Stability | Pass-through uncommitted |
+---------------+--------------------------+
SEE ALSO
rsa(3)
HISTORY
RSA_size() is available in all versions of SSLeay and OpenSSL.
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.
Further information about this software can be found on the open source
community website at https://www.openssl.org/.
1.0.2ze 2022-05-03 RSA_size(3openssl)