[P1619-2] links to recent papers on "keys encrypting themselves"
* Security under Key-Dependent Inputs, Shai Halevi and Hugo Krawczyk.
14th ACM-CCS, pages 466-475, ACM, 2008. http://eprint.iacr.org/2007/315
* Towards Key-Dependent Message Security in the Standard Model, Dennis
Hofheinz and Dominique Unruh. In Advances in Cryptography -
EUROCRYPT'08, pages 108-126, Springer, 2008.
http://www.infsec.cs.uni-sb.de/~unruh/publications/hofheinz08towards.html
* Circular-Secure Encryption from Decision Diffie-Hellman, Dan Boneh,
Shai Halevi, Mike Hamburg, and Rafail Ostrovsky. In Advances in
Cryptography - CRYPTO'08, Springer, 2008, to appear.
http://crypto.stanford.edu/~dabo/abstracts/circular.html
Another not-so-recent paper is:
* John Black, Phillip Rogaway, and Tom Shrimpton. Encryption-Scheme
Security in the Presence of Key-Dependent Messages Selected Areas in
Cryptography 2002 (SAC 2002), LNCS vol. 2595, pp. 62-75, Springer, 2002.
http://www.cs.ucdavis.edu/~rogaway/papers/kdm.html