RSA public key cryptosystem

RSA has been invented in 1977 and till that time everyone things that encryption/decryption can be done only with one symetric key. As header says this is public key cryptosystem, so we gonna have two keys for encryption / decryption and that is public key and private key. I know about this setup so lets jump straight to RSA algorithm.

RSA algorithm has these steps:

  1. choose large primes p,q
  2. take these two primes and multiply them. n=p.q
  3. compute eulers phi function of (n)

 

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