Slide 1 CryptographyPerfect secrecySlide 1 Today What does it mean for a cipher to be: –Computational secure? Unconditionally secure? Perfect secrecy –Conditional probability…
Slide 1 Cryptography Introduction, continued Slide 2 Sufficient key space principle If an encryption scheme has a key space that is too small, then it will be vulnerable…
Slide 1 Math for Liberal Studies Slide 2 How do we protect the security of the messages we send? This is a very important issue in the information age Consider…
Slide 1 3.1 SERVICES AND MECHANISMS SERVICES AND MECHANISMS The International Telecommunication Union- Telecommunication Standardization Section (ITU-T) provides some security…
CRYPTOGRAPHY & NETWORK SECURITY * CRYPTOGRAPHY COMPONENTS Cryptography, a word with Greek origins, means âsecret writing.â However, we use the term to refer to the…