Computer Network Security

{ old school } Text Cipher

Enter your cipher in the first box 'Choose Cipher or Decipher' and press the button :)


6. Cryptanalysis of RSA cipher: you intercepted the ciphertext C = 10, e = 5, n = 35.

m = C^d mod n

m = (10^5) mod 35

m = 5

8. Identify at least one Certification Authority of the highest level and at least one of intermediate level know by your favorite web browser.

For Firefox:

High-Level: Chambers of Commerce Root - 2008

Intermediate: Positive SSL CA 2