What is public-key cryptography ?
What key size should be used ?
What are "stream" and "block" ciphers?
What is the elgamal cryptosystem?
What is a zed encoder? How does it work?
Do digital signatures help detect altered documents and transmission errors?
whats cryptanalysis?
What is meant by 1024, 2048, 5096 bit encryption?
What is luc?
What is exhaustive key search ?
What is public-key cryptography ?
What is Ciphertext?
Actual role of cryptography is data security .Explain with real world example?