doc/man1/x509.pod: corrected "S/MIME signing" requirements

[openssl.git] / doc / man1 / x509.pod

diff --git a/doc/man1/x509.pod b/doc/man1/x509.pod
index 68fbf81f67263f6aa39771049253d8391f1689a0..c375b3bcf3e32fe3a495f67e30ed117745ba21b9 100644 (file)
--- a/doc/man1/x509.pod
+++ b/doc/man1/x509.pod
@@ -2,6 +2,7 @@
 
 =head1 NAME
 
+openssl-x509,
 x509 - Certificate display and signing utility
 
 =head1 SYNOPSIS
@@ -53,9 +54,10 @@ B<openssl> B<x509>
 [B<-CAserial filename>]
 [B<-force_pubkey key>]
 [B<-text>]
+[B<-ext extensions>]
 [B<-certopt option>]
 [B<-C>]
-[B<-[digest]>]
+[B<-I<digest>>]
 [B<-clrext>]
 [B<-extfile filename>]
 [B<-extensions section>]
@@ -91,12 +93,12 @@ certificate but this can change if other options such as B<-req> are
 present. The DER format is the DER encoding of the certificate and PEM
 is the base64 encoding of the DER encoding with header and footer lines
 added. The NET option is an obscure Netscape server format that is now
-obsolete.
+obsolete. The default format is PEM.
 
 =item B<-outform DER|PEM|NET>
 
-This specifies the output format, the options have the same meaning as the
-B<-inform> option.
+This specifies the output format, the options have the same meaning and default
+as the B<-inform> option.
 
 =item B<-in filename>
 
@@ -108,7 +110,7 @@ if this option is not specified.
 This specifies the output filename to write to or standard output by
 default.
 
-=item B<-[digest]>
+=item B<-I<digest>>
 
 The digest to use.
 This affects any signing or display option that uses a message
@@ -157,6 +159,12 @@ Prints out the certificate in text form. Full details are output including the
 public key, signature algorithms, issuer and subject names, serial number
 any extensions present and any trust settings.
 
+=item B<-ext extensions>
+
+Prints out the certificate extensions in text form. Extensions are specified
+with a comma separated string, e.g., "subjectAltName,subjectKeyIdentifier".
+See the L<x509v3_config(5)> manual page for the extension names.
+
 =item B<-certopt option>
 
 Customise the output format used with B<-text>. The B<option> argument
@@ -251,8 +259,11 @@ non-zero if yes it will expire or zero if not.
 
 =item B<-fingerprint>
 
-Prints out the digest of the DER encoded version of the whole certificate
-(see digest options).
+Calculates and outputs the digest of the DER encoded version of the entire
+certificate (see digest options).
+This is commonly called a "fingerprint". Because of the nature of message
+digests, the fingerprint of a certificate is unique to that certificate and
+two certificates with the same fingerprint can be considered to be the same.
 
 =item B<-C>
 
@@ -692,6 +703,14 @@ Display the contents of a certificate:
 
  openssl x509 -in cert.pem -noout -text
 
+Display the "Subject Alternative Name" extension of a certificate:
+
+ openssl x509 -in cert.pem -noout -ext subjectAltName
+
+Display more extensions of a certificate:
+
+ openssl x509 -in cert.pem -noout -ext subjectAltName,nsCertType
+
 Display the certificate serial number:
 
  openssl x509 -in cert.pem -noout -serial
@@ -709,10 +728,6 @@ supporting UTF8:
 
  openssl x509 -in cert.pem -noout -subject -nameopt oneline,-esc_msb
 
-Display the certificate MD5 fingerprint:
-
- openssl x509 -in cert.pem -noout -fingerprint
-
 Display the certificate SHA1 fingerprint:
 
  openssl x509 -sha1 -in cert.pem -noout -fingerprint
@@ -766,13 +781,6 @@ T61Strings use the ISO8859-1 character set. This is wrong but Netscape
 and MSIE do this as do many certificates. So although this is incorrect
 it is more likely to display the majority of certificates correctly.
 
-The B<-fingerprint> option takes the digest of the DER encoded certificate.
-This is commonly called a "fingerprint". Because of the nature of message
-digests the fingerprint of a certificate is unique to that certificate and
-two certificates with the same fingerprint can be considered to be the same.
-
-The Netscape fingerprint uses MD5 whereas MSIE uses SHA1.
-
 The B<-email> option searches the subject name and the subject alternative
 name extension. Only unique email addresses will be printed out: it will
 not print the same address more than once.
@@ -863,8 +871,8 @@ this is because some Verisign certificates don't set the S/MIME bit.
 
 =item B<S/MIME Signing>
 
-In addition to the common S/MIME client tests the digitalSignature bit must
-be set if the keyUsage extension is present.
+In addition to the common S/MIME client tests the digitalSignature bit or
+the nonRepudiation bit must be set if the keyUsage extension is present.
 
 =item B<S/MIME Encryption>
 
@@ -918,7 +926,7 @@ the old form must have their links rebuilt using B<c_rehash> or similar.
 
 =head1 COPYRIGHT
 
-Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
 
 Licensed under the OpenSSL license (the "License").  You may not use
 this file except in compliance with the License.  You can obtain a copy