RSA_padding_add_PKCS1_type_2, RSA_padding_check_PKCS1_type_2,
RSA_padding_add_PKCS1_OAEP, RSA_padding_check_PKCS1_OAEP,
RSA_padding_add_SSLv23, RSA_padding_check_SSLv23,
-RSA_padding_add_none, RSA_padding_check_none - Asymmetric encryption
+RSA_padding_add_none, RSA_padding_check_none - asymmetric encryption
padding
=head1 SYNOPSIS
RSA_padding_check_xxx() verifies that the B<fl> bytes at B<f> contain
a valid encoding for a B<rsa_len> byte RSA key in the respective
-encoding method and stores the recovered data of size B<tlen>
+encoding method and stores the recovered data of at most B<tlen> bytes
+(for B<RSA_NO_PADDING>: of size B<tlen>)
at B<to>.
For RSA_padding_xxx_OAEP(), B<p> points to the encoding parameter