Encryption apparatus for ensuring security in communication betw

Details Encryption apparatus for ensuring security in communication betw Encryption apparatus for ensuring security in communication betw

1997-05-21

2000-05-02

Cangialosi, Salvatore

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

380278, 380283, H04L 900

Patent

active

060584769

ABSTRACT:
In the first devices, MPU 53 generates random number R1 as challenge data. Random number R3 is generated by first encryption IC 54, and then combined with random number R1, encrypted, and sent to second device 52 as encrypted text C1. When encrypted text C2 is similarly received from second device 52, first encryption IC 54 decrypts C2 and separates the decrypted result into first separated data RR2 and second separated data RR4. The first encryption IC 54 returns the first separated data to second device 52 as response data. MPU 53 compares the first separated data returned from second device 52 with random number R1, and in the event of a match, authenticates second device 52 as a legitimate device. The first encryption IC 54 generates the time-varying data transfer key by combining second separated data RR4 with random number R3, and transfers the digital copyrighted data to second device 52 by using the data transfer key.

REFERENCES:
patent: 5745571 (1998-04-01), Zuk
patent: 5790666 (1998-08-01), Ooi
patent: 5917915 (1999-06-01), Hirose

Affiliated with

Also associated with

Rating

Encryption apparatus for ensuring security in communication betw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Encryption apparatus for ensuring security in communication betw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encryption apparatus for ensuring security in communication betw will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1602533