HP OpenVMS Systems Documentation

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HP Open Source Security for OpenVMS Volume 2: HP SSL for OpenVMS > CRYPTO Application Programming Interface (API) Reference

RSA_size

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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.

SEE ALSO

rsa(3)

HISTORY

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