Here's an online article on Public key cryptography at Carnegie Melon Univ

Quoting the text from the website
Public key cryptography is especially useful in situations where there is a need for confidentiality, integrity, and non-repudiation.

I wanted to try out the integrity claim, so I tried out the RSA demo encryption at http://shop-js.sourceforge.net/crypto2.htm

I put a random seed, using the random.org link provided.

Clicked on Generate key and it showed me that the seed size is 1024.

Click Generate key again and it fills up your p, q, d and e.

I put in the text
Aman Raheja is testing Public key Crypto

Now hit Encrypt and I got

qWRocnhbzN4ej6bhDLwoG3GDKDaEXmcCQkenPpCSXjW"AsmIqj93tVljg"yK
e8CCODpmpdiaEea2

I changed it to (man-in-the-middle)

qWRocnhbzN4ej6bhDLwoG3GDKDaEXmcCQkenPpCSXjW"AsmIqj93tVljg"yK
e8CCODpmpdiaEea3

Then hit decrypt, and I get

Aman Raheja is testing Public key Cryptk

Integrity???

Good one Aman!

I agree with you.

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