progs/catcrypt.1: The default `cipher' depends on the bulk transform.

As does the space of acceptable names.  Refactor the manual a little to
describe this properly.

diff --git a/progs/catcrypt.1 b/progs/catcrypt.1
index 6c55440..c26cbec 100644 (file)
--- a/progs/catcrypt.1
+++ b/progs/catcrypt.1
@@ -248,7 +248,12 @@ Makes use of
 .B cipher
 and
 .B mac
-attributes.
+attributes.  Run
+.B catcrypt show cipher
+for a list of supported symmetric encryption algorithms; the default
+.I cipher
+is
+.BR blowfish-cbc .
 This is the default transform.
 .TP
 .B naclbox
@@ -286,11 +291,8 @@ attribute then the
 .I bulk
 in the
 .I kemalgspec
-is used; if that it absent, then the default of
-.B blowfish-cbc
-is used.  Run
-.B catcrypt show cipher
-for a list of supported symmetric encryption algorithms.
+is used; if that it absent, then the default depends on the bulk
+transform.
 .TP
 .B hash
 This is the hash function used to distil entropy from the shared secret
@@ -562,7 +564,9 @@ attribute.
 The symmetric encryption algorithms which can be used in a
 key-encapsulation key's
 .B cipher
-attribute.
+attribute when using the
+.B gencomp
+bulk transform.
 .TP
 .B mac
 The message authentication algorithms which can be used in a