Allow the ca application to use EdDSA

[oweals/openssl.git] / doc / man1 / ca.pod

diff --git a/doc/man1/ca.pod b/doc/man1/ca.pod
index 9b25345859684feb9864e0c4526d91b6ad8f9643..ebd8a4386a1076fdc42ddac8fbd5609091782321 100644 (file)
--- a/doc/man1/ca.pod
+++ b/doc/man1/ca.pod
@@ -184,7 +184,8 @@ The number of days to certify the certificate for.
 =item B<-md alg>
 
 The message digest to use.
-Any digest supported by the OpenSSL B<dgst> command can be used.
+Any digest supported by the OpenSSL B<dgst> command can be used. If the signing
+key is using Ed25519 or Ed448 then you should specify "null" for the digest.
 This option also applies to CRLs.
 
 =item B<-policy arg>