RSA SecurID (also called RSA security token) is a Time-based Security Token developed by RSA to provide a strong two- factor authentication. The token devices generate dynamic codes every minute. The token codes can be used in addition to passwords. The algorithm employs arn encryption algorithm such as DES or AES to encrypt the time and produce the ciphertext. That is 35970 TLI TokenCode = Encryptionx(Time), where the k is the secret key of the encryption algorithm. Generally only 6 digits of the output/ciphertext are used/displayed in the token and used as the "second factor" for secure authentication. Analyze the security of the RSA SecurID type of tokens. Identify the security requirements for the tokens