Appeal No. 2000-1999
Application 08/748,314
received order include the customer public key, the central authority private key-signed
signature that is a function of the customer account, an unsigned copy of the price and
a customer private key-signed signature that is a function of the customer account, the
merchant account and the price.
The examiner has not specifically identified where, in Schneier, such claimed
limitations are taught and we do not find, in Schneier, the particular claimed
combinations of elements for the quotation and the order.
The examiner has identified, in Schneier, that the reference discloses “digital
signing the message data with the private key of the sender” (answer-pages 8 and 10).
The examiner further points to page 185, paragraph 6 and page 186 of Schneier for a
teaching of “sending the public key with the message that is digitally signed” (answer-
page 10). However, even assuming that all the examiner contends is true, this still
does not offer a reference, or a combination of references, which suggests the specific
combination of elements, i.e., a quotation that includes the merchant public key, a
central authority private key-signed signature that is a function of the merchant account,
an unsigned copy of a price and a merchant private key-signed signature that is a
function of the merchant account and the price; and an order that includes the customer
public key, the central authority private key-signed signature that is a function of the
customer account, an unsigned copy of the price and a customer private key-signed
signature that is a function of the customer account, the merchant account and the
price.
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