Information processing apparatus and method

Details Information processing apparatus and method Information processing apparatus and method

2011-06-07

2011-06-07

Kim, Jung (Department: 2432)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S168000, C380S200000, C380S210000, C715S255000

Reexamination Certificate

active

07958361

ABSTRACT:
An information processing method enables verification of validity of signed data using received partial signed data parts, even when all the signed data is not received. According to the information processing method, signature data including a signature value and digests of a plurality of partial signed data parts is received. Then, the signature data is verified by using the signature value and the digests of a plurality of partial signed data parts. Subsequently, the partial signed data is received according to a result of verifying the signature data. Then, the partial signed data is verified using the partial signed data and the digest of the partial signed data.

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