-.\" $OpenBSD: EVP_add_cipher.3,v 1.5 2023/08/25 13:26:27 schwarze Exp $
+.\" $OpenBSD: EVP_add_cipher.3,v 1.6 2023/08/25 18:39:04 schwarze Exp $
.\"
.\" Copyright (c) 2023 Theo Buehler <tb@openbsd.org>
.\"
.Nm EVP_add_digest ,
.Nm EVP_add_digest_alias ,
.Nm EVP_delete_digest_alias
-.Nd maintain cipher and digest lookup by names
+.Nd maintain lookup tables for cipher and digest names
.Sh SYNOPSIS
.In openssl/evp.h
.Ft int
and
.Dv OBJ_NAME_ALIAS .
.Sh RETURN VALUES
-These functions return 1 on success and 0 on failure.
+.Fn EVP_add_cipher ,
+.Fn EVP_add_cipher_alias ,
+.Fn EVP_add_digest ,
+and
+.Fn EVP_add_digest_alias
+return 1 on success or 0 if memory allocation fails.
+.Pp
+.Fn EVP_delete_cipher_alias
+and
+.Fn EVP_delete_digest_alias
+return 1 if one alias was removed or 0 otherwise.
.Sh SEE ALSO
.Xr evp 3 ,
.Xr EVP_CIPHER_meth_new 3 ,