A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Transport Layer Security Working Group of the IETF.


	Title           : Transport Layer Security (TLS) Renegotiation Indication Extension
	Author(s)       : E. Rescorla, et al.
	Filename        : draft-ietf-tls-renegotiation-01.txt
	Pages           : 10
	Date            : 2009-11-26

SSL and TLS renegotiation are vulnerable to an attack in which the
attacker forms a TLS connection with the target server, injects
content of his choice, and then splices in a new TLS connection from
a client.  The server treats the client's initial TLS handshake as a
renegotiation and thus believes that the initial data transmitted by
the attacker is from the same entity as the subsequent client data.
This draft defines a TLS extension to cryptographically tie
renegotiations to the TLS connections they are being performed over,
thus preventing this attack.

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