What are the advantages and disadvantages of public-key cryptography over secret-key cryptography?
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Is the use of dsa covered by any patents?
Are elliptic curve cryptosystems secure ?
What is a linear feedback shift register?
What is a stream cipher?
What is a PKI ?
Which cryptographic mechanism provides non-repudiation?
What are cryptography standards ?
What are pseudo-collisions?
What is SecurPC ?
What is Fortezza ?
What other hash functions are there ?
How can signatures remain valid beyond the expiration dates of their keys, or, How do you verify a 20-year-old signature?