How can signatures remain valid beyond the expiration dates of their keys, or, How do you verify a 20-year-old signature?
TCS,
892Post New Cryptography General Questions
What are RC2 and RC4?
What are the most important attacks on MACs ?
How is RSA used for authentication in practice?
What is the GSS-API ?
What are elliptic curve cryptosystems ?
Can users of rsa run out of distinct primes?
Explain the meaning of Cryptography.
Should a public key or private key be shared among users?
Can DES be exported from the U.S.?
What is DNA computing ?
Which two cryptographic mechanisms provide confidentiality?
Is DSS secure?
What is Mondex ?
What is electronic money ?
What are lattice-based cryptosystems ?