Expunge revision histories in files.

[u/mdw/catacomb] / key.1

diff --git a/key.1 b/key.1
index cab0d41..1b6c7e5 100644 (file)
--- a/key.1
+++ b/key.1
@@ -87,6 +87,8 @@ is one of:
 .B fingerprint
 .RB [ \-f
 .IR filter ]
+.RB [ \-a
+.IR hash ]
 .RI [ tag ...]
 .br
 .B tidy
@@ -744,10 +746,18 @@ The following option is supported:
 Specifies a filter.  Only keys and key components which match the filter
 are fingerprinted.  The default is to only fingerprint nonsecret
 components.
+.TP
+.BI "\-a, \-\-algorithm " hash
+Names the hashing algorithm.  Run
+.B hashsum -a list
+for a list of hashing algorithms.  The default is
+.BR rmd160 .
 .PP
 The keys to be fingerprinted are named by their tags or keyids given as
 command line arguments.  If no key tags are given, all keys which match
-the filter are fingerprinted.
+the filter are fingerprinted.  See
+.BR keyring (5)
+for a description of how key fingerprints are computed.
 .SS "tidy"
 Simply reads the keyring from file and writes it back again.  This has
 the effect of removing any deleted keys from the file.