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Cryptography Related

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Printed Date: 30 March 2026 at 5:01am
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Topic: Cryptography Related

Posted By: mihir75
Subject: Cryptography Related
Date Posted: 26 November 2003 at 4:06am

Dear All,

I have certain questions related to certain Cryptographic algorithms. Would appreciate if anybody is able to help me out with this.

A> Why can digital signatures be never modified?

B> The second question is regarding public / private keys. Assuming I am an end user, how do I get authenticated everytime with a public key of some other customer or user. I am seen many a times that in certain examples, I am asked for a certificate to be signed only once when I visit a page. The next time I revist I am not asked for any sign ups. Whereas in certain examples I have to accept the certificate everytime I visit the page. How does the authentication happen in such cases if I do not have an Internet connect and am just an intranet user.

C> Last is what are various ways of storing the keys on different platforms ?

I would be very happy if anybody can help me out with these queries.

Many Thanks,
Mihir

Replies:

Posted By: eksimba
Date Posted: 26 November 2003 at 9:42am

I don't think your questions have simple answers that can be easily placed in a forum like this. I suggest you read some FAQs on public-key cryptography. There are many out there, such as this one:

http://www.rsasecurity.com/rsalabs/faq/2-1-1.html - http://www.rsasecurity.com/rsalabs/faq/2-1-1.html

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- eric