# cryptography

Question:
Use Sage to answer the following questions.  Show all your sage input/output:

Suppose your RSA public key factors as p = 6569 and q = 8089, and the public exponent e is 11.  Suppose you were sent the Ciphertext 28901722.  Perform the RSA Decryption and recover the plaintext.
Suppose that you want to encrypt the number 449 and send it to someone with public key N =37617577, and e = 529
Suppose that you forgot your public exponent, but you know that the prime factors of your Key’s modulus are 1723 and 5381 private exponent is 223.  Find the public exponent.
Use sage to generate an rsa public / private key pair and perform an encryption and decryption.

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