st augustine fl (2 resultados)

Paperback. Condición: Very Good. Cryptography is the most effective way to achieve data security and is essential to e-commerce activities such as online shopping, stock trading, and banking This invaluable introduction to the basics of encryption covers everything from the terminology used in the field to specific technologies to the pros and cons of different implementations Discusses specific technologies that incorporate cryptography in their design, such as authentication methods, wireless encryption, e-commerce, and smart cards Based entirely on real-world issues and situations, the material provides instructions for already available technologies that readers can put to work immediately Expert author Chey Cobb is retired from the NRO, where she held a Top Secret security clearance, instructed employees of the CIA and NSA on computer security and helped develop the computer security policies used by all U.S. intelligence agencies. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

1st Printing. Trifold with full page slip. Illustrated upper wrapper. 15" x 9-1/2" On the lower wrapper is a written description of two dishes. A VG copy. Horizontal crease, due to being folded. Some soiling and scuffing to menu. Couple blue ink markings adjusting menu items, small penciled date to tail of slip. Some age toning. Overall a bright copy. Illustrated card stock self wrappers, black lettering. Yellow paper slip taped in, printed in red and black. Now housed in a mylar sleeve.