RSA_size

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
HISTORY

NAME

RSA_size − get RSA modulus size

SYNOPSIS

 #include <openssl/rsa.h>

 int RSA_size(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.

SEE ALSO

rsa(3)

HISTORY

RSA_size() is available in all versions of SSLeay and OpenSSL.