=head1 DESCRIPTION
The function EVP_PKEY_CTX_ctrl() sends a control operation to the context
-B<ctx>. The key type used must match B<keytype> if it is not zero. The parameter
+B<ctx>. The key type used must match B<keytype> if it is not -1. The parameter
B<optype> is a mask indicating which operations the control can be applied to.
The control command is indicated in B<cmd> and any additional arguments in
B<p1> and B<p2>.
L<EVP_PKEY_decrypt(3)|EVP_PKEY_decrypt(3)>,
L<EVP_PKEY_sign(3)|EVP_PKEY_sign(3)>,
L<EVP_PKEY_verify(3)|EVP_PKEY_verify(3)>,
-L<EVP_PKEY_verifyrecover(3)|EVP_PKEY_verifyrecover(3)>,
+L<EVP_PKEY_verify_recover(3)|EVP_PKEY_verify_recover(3)>,
L<EVP_PKEY_derive(3)|EVP_PKEY_derive(3)>
L<EVP_PKEY_keygen(3)|EVP_PKEY_keygen(3)>
=head1 HISTORY
-These functions were first added to OpenSSL 0.9.9.
+These functions were first added to OpenSSL 1.0.0.
=cut