Exact(6)
The client obtains e-coins from a broker and they can be used with any vendor registered with that broker.
The client obtains the convergent key by interactively running an oblivious pseudorandom function (OPRF) with the key server.
These keys are only known by them and unless one of them reveals them, no external attacker can eavesdrop the vendors' keys the client obtains.
That is, the client obtains (sigma leftarrow {mathsf{Query}}({textsf{PK}},{textsf{S}},x)) from the server and checks that ({mathsf{Verify}}({textsf{PK}},x,sigma )=v_x ne perp ).
Each e-coin that the client obtains could be used with several vendors as long as the value of the purchases does not exceed the value of the e-coin.
The e-coin(s) the client obtains can be used in different transactions and with different vendors as long as the amount of the purchases is lower than the e-coin value.
Similar(54)
After recovering, the client needs to verify the result T 1 and T 2. That is, if T 1=T 2 and T k (i,j =c (k=1,2) hold simultaneously, which means the server is honest, the client obtain the correct output (P^{_{-1}}_{1}Z_{1}P_{3}) which actually equals to M 1 M 2, otherwise, the client refuses the received outputs and aborts.
Suarez's defense attorney Bijan Parwaresch said the money his client obtained from Puig is gone.
But it takes time to meet clients, obtain referrals and develop relationships with landlords.
He helps clients obtain proper permits and places them in health-department approved kitchens.
The firm's specialty was helping clients obtain multimillion-dollar earmarks, Mr. Murtha's stock in trade.
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