Which cryptographic mechanism provides non-repudiation?
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How is RSA used for encryption in practice?
How can signatures remain valid beyond the expiration dates of their keys, or, How do you verify a 20-year-old signature?
What other stream ciphers are there?
What is the keystore?
What is OAEP ?
What are some of the more popular techniques in cryptography ?
What is a hash function ?
What are the prospects for theoretical factoring breakthroughs?
What is RSAREF?
What is a message digest?
Are elliptic curve cryptosystems widely used ?
What is the discrete log problem?