- djm@cvs.openbsd.org 2013/11/21 00:45:44
[Makefile.in PROTOCOL PROTOCOL.chacha20poly1305 authfile.c chacha.c]
[chacha.h cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h]
[dh.c myproposal.h packet.c poly1305.c poly1305.h servconf.c ssh.1]
[ssh.c ssh_config.5 sshd_config.5] Add a new protocol 2 transport
cipher "chacha20-poly1305@openssh.com" that combines Daniel
Bernstein's ChaCha20 stream cipher and Poly1305 MAC to build an
authenticated encryption mode.
Inspired by and similar to Adam Langley's proposal for TLS:
http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-03
but differs in layout used for the MAC calculation and the use of a
second ChaCha20 instance to separately encrypt packet lengths.
Details are in the PROTOCOL.chacha20poly1305 file.
Feedback markus@, naddy@; manpage bits Loganden Velvindron @ AfriNIC
ok markus@ naddy@
diff --git a/PROTOCOL b/PROTOCOL
index 0363314..cace97f 100644
--- a/PROTOCOL
+++ b/PROTOCOL
@@ -91,6 +91,11 @@
the exchanged MAC algorithms are ignored and there doesn't have to be
a matching MAC.
+1.7 transport: chacha20-poly1305@openssh.com authenticated encryption
+
+OpenSSH supports authenticated encryption using ChaCha20 and Poly1305
+as described in PROTOCOL.chacha20poly1305.
+
2. Connection protocol changes
2.1. connection: Channel write close extension "eow@openssh.com"
@@ -345,4 +350,4 @@
This extension is advertised in the SSH_FXP_VERSION hello with version
"1".
-$OpenBSD: PROTOCOL,v 1.21 2013/10/17 00:30:13 djm Exp $
+$OpenBSD: PROTOCOL,v 1.22 2013/11/21 00:45:43 djm Exp $