But till now it seems to be an infeasible task. RSA keys can be typically 1024 or 2048 bits long, but experts believe that 1024-bit keys could be broken in the near future. Therefore encryption strength totally lies on the key size and if we double or triple the key size, the strength of encryption increases exponentially. So if somebody can factorize the large number, the private key is compromised. And private key is also derived from the same two prime numbers. The public key consists of two numbers where one number is a multiplication of two large prime numbers. The idea! The idea of RSA is based on the fact that it is difficult to factorize a large integer. Since this is asymmetric, nobody else except the browser can decrypt the data even if a third party has the public key of the browser.
The server encrypts the data using the client’s public key and sends the encrypted data.A client (for example browser) sends its public key to the server and requests some data.
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