Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-11-15
2011-10-11
Barron, Jr., Gilberto (Department: 2432)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S180000
Reexamination Certificate
active
08037312
ABSTRACT:
An apparatus for digital signature authentication includes a dividing unit that divides streaming data into plural pieces of partial data in a predetermined unit; a first creating unit that creates a hash value string including plural hash values corresponding to the pieces of partial data; a second creating unit that creates a first binary tree using the hash value string; and a third creating unit that creates a digital signature of a signer using a root value of the first binary tree.
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Izu Tetsuya
Takenaka Masahiko
Yoshioka Takashi
Barron Jr. Gilberto
Cribbs Malcolm
Fujitsu Limited
Staas & Halsey , LLP
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