Review of AEAD Encryption API Project; concluding December 5, 2008
Sam Hartman
hartmans at MIT.EDU
Mon Nov 24 14:28:12 EST 2008
Folks, I'm calling for a review of
http://k5wiki.kerberos.org/wiki/Projects/AEAD_encryption_API .
The Microsoft SSPI provides an interface for in-place encryption of messages (see
MS-KILE section 3.4.5.4ff). This interface also permits additional data to be included
in the checksum generated to protect integrity. Such a facility is called authenticated
encryption with additional data (AEAD). The SSPI works at the GSS-API layer, rather than
the raw Kerberos layer.
This project proposes to extend the raw Kerberos cryptographic API (krb5_c_*) in order
to make it possible to implement these SSPI facilities in an extension to the GSS-API.
The ultimate consumer of these applications is typically DCE-style RPC, although the
facilities could be used by other applications.
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