Add RFC7919 documentation.

[openssl.git] / doc / man1 / dgst.pod

diff --git a/doc/man1/dgst.pod b/doc/man1/dgst.pod
index 677f2b21ef0e7ae245f9438c3f27398ec254103b..cde3bb17d37e345d6eb17092dc6c70949e90599e 100644 (file)
--- a/doc/man1/dgst.pod
+++ b/doc/man1/dgst.pod
@@ -2,13 +2,14 @@
 
 =head1 NAME
 
-dgst, sha, sha1, mdc2, ripemd160, sha224, sha256, sha384, sha512, md4, md5, blake2b, blake2s - message digests
+dgst
+- perform digest operations
 
 =head1 SYNOPSIS
 
-B<openssl> B<dgst>
-[B<-help>]
+B<openssl dgst>
 [B<-I<digest>>]
+[B<-help>]
 [B<-c>]
 [B<-d>]
 [B<-hex>]
@@ -23,13 +24,12 @@ B<openssl> B<dgst>
 [B<-signature filename>]
 [B<-hmac key>]
 [B<-fips-fingerprint>]
+[B<-rand file...>]
 [B<-engine id>]
 [B<-engine_impl>]
 [B<file...>]
 
-B<openssl>
-[I<digest>]
-[B<...>]
+B<openssl> I<digest> [B<...>]
 
 =head1 DESCRIPTION
 
@@ -149,14 +149,19 @@ for example exactly 32 chars for gost-mac.
 
 =back
 
-=item B<-rand file(s)>
+=item B<-rand file...>
 
 A file or files containing random data used to seed the random number
-generator, or an EGD socket (see L<RAND_egd(3)>).
+generator.
 Multiple files can be specified separated by an OS-dependent character.
 The separator is B<;> for MS-Windows, B<,> for OpenVMS, and B<:> for
 all others.
 
+=item [B<-writerand file>]
+
+Writes random data to the specified I<file> upon exit.
+This can be used with a subsequent B<-rand> flag.
+
 =item B<-fips-fingerprint>
 
 Compute HMAC using a specific key for certain OpenSSL-FIPS operations.