Lucifer (暗号)
↑ Horst Feistel. Block Cipher Cryptographic System, アメリカ合衆国特許第 3,798,359号. Filed June 30, 1971. (IBM)
↑ John Lynn Smith. Recirculating Block Cipher Cryptographic System, アメリカ合衆国特許第 3,796,830号. Filed Nov 2, 1971. (IBM)
↑ Horst Feistel, (1973). "Cryptography and Computer Privacy". Scientific American, 228(5), May 1973, pp 15–23.
1 2 A. Sorkin, (1984). "LUCIFER: a cryptographic algorithm". Cryptologia, 8(1), 22--35, 1984.
↑ Ishai Ben-Aroya, Eli Biham (1996). "Differential Cryptanalysis of Lucifer". Journal of Cryptology 9(1), pp. 21–34, 1996.