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-rw-r--r--openssl/doc/apps/dhparam.pod5
1 files changed, 5 insertions, 0 deletions
diff --git a/openssl/doc/apps/dhparam.pod b/openssl/doc/apps/dhparam.pod
index 9edb4ff4e..6e27cf5c1 100644
--- a/openssl/doc/apps/dhparam.pod
+++ b/openssl/doc/apps/dhparam.pod
@@ -12,6 +12,7 @@ B<openssl dhparam>
[B<-in> I<filename>]
[B<-out> I<filename>]
[B<-dsaparam>]
+[B<-check>]
[B<-noout>]
[B<-text>]
[B<-C>]
@@ -64,6 +65,10 @@ exchange more efficient. Beware that with such DSA-style DH
parameters, a fresh DH key should be created for each use to
avoid small-subgroup attacks that may be possible otherwise.
+=item B<-check>
+
+check if the parameters are valid primes and generator.
+
=item B<-2>, B<-5>
The generator to use, either 2 or 5. 2 is the default. If present then the