#include <openssl/rsa.h>
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
const unsigned char *f, int fl);
=head1 DESCRIPTION
+All of the functions described on this page are deprecated.
+Applications should instead use the EVP PKEY APIs.
+
The RSA_padding_xxx_xxx() functions are called from the RSA encrypt,
decrypt, sign and verify functions. Normally they should not be called
from application programs.
L<RSA_sign(3)>, L<RSA_verify(3)>,
L<RAND(7)>
+=head1 HISTORY
+
+All of these functions were deprecated in OpenSSL 3.0.
+
=head1 COPYRIGHT
Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.