Cryptography – Cryptanalysis
Patent
1996-07-30
1999-08-17
Hayes, Gail O.
Cryptography
Cryptanalysis
380 5, 380 9, 380 20, 380 19, H04L 932
Patent
active
059405058
ABSTRACT:
A record signal corresponding to record information to be recorded to a record medium is scrambled, and the scrambled record signal is recorded to the record medium. The information recording method is provided with: generating a scramble function to scramble the record signal in correspondence with a record medium identification code, which is set in advance to identify the record medium; scrambling the record signal by use of the generated scramble function and outputting the scrambled record signal; recording the scrambled record signal and the record medium identification code corresponding to the scrambled record signal to the record medium; generating an inverse-scramble function to decipher the scrambled record signal on the basis of the generated scramble function; and outputting the generated inverse-scramble function and the record medium identification code corresponding to the generated inverse-scramble function as one set to the external.
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Hayes Gail O.
Pioneer Electronic Corporation
Song Ho S.
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