Hash value generating method and device, data encryption method

Details Hash value generating method and device, data encryption method Hash value generating method and device, data encryption method

1998-06-04

2000-09-19

Swann, Tod R.

Cryptography

Particular algorithmic function encoding

380 37, 380 42, H04L 928, H04L 906, H04L 918

Patent

active

061223751

ABSTRACT:
Hash values, keys and cipher text which have a high degree of data scrambling are generated rapidly. When a message is sent, divisional data of the message are input, and injection extension processing is performed so that the data length of output data is longer than the data length of input data. Further, hash values are generated by a hash function containing multiplication processing, cyclic shift processing, etc.

REFERENCES:
patent: 5671284 (1997-09-01), Buer
patent: 5740251 (1998-04-01), Tajima et al.
patent: 5751810 (1998-05-01), Miyaji et al.
patent: 5835600 (1998-11-01), Rivest
ISO/IEC 10118-2, "Information Technology-Security Techniques-Hah-Functions: Part 2: Hash-Functions using an n-bit Block cipher Algorithm" (1994), pp. 1-7.
R. Rivest, "The MD5 Message-Digest Algorithm," IETF RFC 1321 (1992) pp. 1-19.

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