1J Nakahara Jr, B Preneel, Joos Vandewalle. Linear cryptanslysis of reduced-round SAFER++ . The 2nd NESSIE Workshop,Surrey, England, 2001.
2E Biham, A Shamir. Differential Cryptanalysis of Data Encryotion Standard. New York: Springer-Verlag, 1993.
3M Matsui. Linear cryptanalysis method for DES cipher. In: Tor Helleseth ed. Proc of Cryptology-EUROCRYPT' 93. Berlin:Springer-Verlag, 1994. 386-397.
4L Knudsen, M Robshaw. Non-linear approximations in linear cryptanalysis. In: Ueli M Maurer ed. Proc of Cryptology-EUROCRYPT' 96. Berlin: Springer-Verlag, 1998. 224 - 236.
5S K Langford, M E Hellman. Differential-linear cryptanalysis.In: Y Desmedt ed. Proc of Advances in Cryptology-CRYPTO'94, LNCS 839. New York: Springer-Verlag, 1994. 17- 26.
6J L Massey. SAFERK-64 : One year later. In: B Preneel ed. Fast Software Encryption Ⅱ, LNCS 1008. New York: Springer,1995. 212-241.
