Answer Posted / divz

you have typed the ques wrong or from where you copied this
ques that is wrong..
it should be

(1/10)^18 - (1/10)^20


answer:
99/(10^20)

What is a digital signature and what is authentication ?

3234

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How are digital certificates used ?

2557

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What is a blind signature scheme ?

2741

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What are digital certificates ?

2193

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What is an undeniable signature scheme ?

2900

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What is a group signature ?

2861

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What is the difference between the CAs?

2346

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What are on-line/off-line signatures ?

2841

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What are special signature schemes ?

2626

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What is a chained certificate?

2292

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What is a fail-stop signature scheme ?

2943

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What is a one-time signature scheme ?

2828

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What is digital timestamping ?

2894

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How do CAs sign certificates?

2293

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What is a digital envelope ?

3114

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