X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=secnet.8;h=2bf225043ace5f0ef91197489b1e148cc8d1be93;hb=b02b720ac62afd3a45c44e7ced37c090e7b39da9;hp=869d297d9a71f10d22966473074ed9a49745f528;hpb=3ca86f6d356be1eb166f2b576a1d6ad14943feae;p=secnet.git

diff --git a/secnet.8 b/secnet.8
index 869d297..2bf2250 100644
--- a/secnet.8
+++ b/secnet.8
@@ -415,8 +415,8 @@ A \fIrandomsource closure\fR is a source of random numbers.
 .PP
 Read the contents of the file \fIPATH\fR (a string) and return it as a string.
 
-.SS serpent256-cbc
-\fBserpent256-cbc(\fIDICT\fB)\fR => \fItransform closure\fR
+.SS eax-serpent
+\eax-fBserpent(\fIDICT\fB)\fR => \fItransform closure\fR
 .PP
 Valid keys in the \fIDICT\fR argument are:
 .TP
@@ -425,11 +425,30 @@ The maximum acceptable difference between the sequence number in a
 received, decrypted message and the previous one.
 The default is 10.
 It may be necessary to increase this is if connectivity is poor.
+.TP
+.B tag-length-bytes
+The length of the message authentication tag.  The default is 16,
+for a 128-bit tag length.  It must be no longer than the Serpent
+blocksize, 16.  Must be have the same value at both ends.
+.TP
+.B padding-rounding
+Messages are padded to a multiple of this many bytes.  This
+serves to obscure the exact length of messages.  The default is 16,
 .PP
 A \fItransform closure\fR is a reversible means of transforming
 messages for transmission over a (presumably) insecure network.
 It is responsible for both confidentiality and integrity.
 
+.SS serpent256-cbc
+\fBserpent256-cbc(\fIDICT\fB)\fR => \fItransform closure\fR
+.PP
+Valid keys in the \fIDICT\fR argument are:
+.TP
+.B max-sequence-skew
+As above.
+.PP
+Note that this uses a big-endian variant of the Serpent block cipher
+(which is not compatible with most other Serpent implementations).
 .SS rsa-private
 \fBrsa-private(\fIPATH\fB\fR[, \fICHECK\fR]\fB)\fR => \fIrsaprivkey closure\fR
 .TP