#include <openssl/rsa.h> int RSA_bits(const RSA *rsa);
The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7):
int RSA_size(const RSA *rsa); int RSA_security_bits(const RSA *rsa);
rsa and rsa->n must not be NULL.
The remaining functions described on this page are deprecated. Applications should instead use EVP_PKEY_get_size(3), EVP_PKEY_get_bits(3) and EVP_PKEY_get_security_bits(3).
RSA_size() 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_security_bits() returns the number of security bits of the given rsa key. See BN_security_bits(3).
RSA_size() returns the size of modulus in bytes.
RSA_security_bits() returns the number of security bits.
The RSA_bits() function was added in OpenSSL 1.1.0.
Licensed under the Apache License 2.0 (the ``License''). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.