Code-string encryption method and apparatus, decryption...

Details Code-string encryption method and apparatus, decryption... Code-string encryption method and apparatus, decryption...

2007-09-04

2007-09-04

Peeso, Thomas R. (Department: 2132)

Electrical computers and digital processing systems: support

System access control based on user identification by...

C713S165000, C713S168000, C713S171000

Reexamination Certificate

active

10648092

ABSTRACT:
An original code string is decomposed into preview data (trial data) and high-quality data in a code-string decomposer. The high-quality data is separated into first data having an exactly or almost regular pattern and second data other than the first data by a high-quality data separator1882. The second data is encrypted. The first data is not encrypted, or is encrypted by an encryption process other than that used for the second data. With this arrangement, important data is prevented from being deciphered.

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