Cryptography – Communication system using cryptography – Time segment interchange
Reexamination Certificate
2007-08-07
2007-08-07
Arani, Taghi T. (Department: 2131)
Cryptography
Communication system using cryptography
Time segment interchange
C380S028000, C380S030000, C380S042000, C380S043000, C380S277000, C713S168000, C713S171000
Reexamination Certificate
active
10205133
ABSTRACT:
Methods and apparatus are presented for partially encrypting a data transmission, yet providing authentication for all of the data transmission. Plaintext blocks are combined with noise blocks and then either encrypted or decrypted to form ciphertext blocks and authentication blocks. The authentication blocks are used to determine a checksum that is then used to determine an authentication tag.
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Hawkes Philip Michael
Rose Gregory G.
Arani Taghi T.
Huffaker David J.
Minhas Sandip
QUALCOMM Incorporated
Rouse Thomas
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