Index_P

P

Packet encoding rules, 191

Packet filter, 52

dynamic, 52, 57 “58

static, 52, 54 “57

Packet-level blocking, 361 “63

Packet logging, 57

Parallel dual- homed firewall, 71

Passive eavesdropping, 33, 168

Passive File Transfer Protocol, 58

Passphrase, 105 “6

Passport credentials, 221

Passport unique identifier, 219 “20, 224

Passport user profile, 220

Passport wallet, 221

Password cracker, 225

Password file, 42 “46

Password security, 216, 227, 232 “33

Password sniffing, 3, 4, 8

Patent claims, 108 “9

Pay-after payment system, 254

Payee, 250, 255

Payer, 250, 255

Pay-now payment system, 254

PayPal, 253

PayWord, 262

PCMCI card, 106

Perfect forward secrecy , 141

Perl language, 301, 305 “6, 333

Personal certificate, 177, 204 “5

Personal digital assistant, 7

Personal firewall, 53

Pervasive security mechanism, 15

Photuris Key Management Protocol, 137

Photuris Plus, 137

Physical security, 90

Platform for Internet content selection, 343, 366 “67, 370

Platform for privacy preferences project, 342 “43

Plug-in application, 273 “75, 284

Point of Presence 3 Protocol, 155

Point-to-Point Protocol, 118 “19, 123

Point-to-Point Protocol extension, 122

Point-to-Point Tunneling Protocol, 122 “24

Post method, 223, 303 “4

Preferred encryption algorithm, 190

Preimage resistant hash function, 91 “92

Prepaid payment system, 254

Presentation attack, 355

Pretty Good Privacy, 270 “71

Pretty Good Privacy certificate, 188 “90

Principal, 232

Privacy enhancing technology, 317, 343

Privacy protection, 317 “24, 341 “44

Privacy seal, 341 “42

Private communication technology, 154

Private digital watermark, 354

Private key, 97, 105, 106, 202, 258, 322

Privilege attribute certificate, 240

Privilege attribute server, 240

Profile cookie, 223

Protocol data unit, 118, 123

Protocol number, 55

Proxied Application Protocol, 179

Proxy auto-configuration , 78 “80, 243

Proxy cache, 39

Proxy-connection header, 24

Proxy server, 25, 39, 59, 68, 77, 179, 181 “82, 291, 293, 324, 330, 361, 363

Pseudorandom bit sequence, 107

Pseudorandom nonce, 140 “41

Public cache-control directive, 39

Public database mapping, 340

Public digital watermark, 354

Public key, 96, 322

Public key certificate, 34, 41, 100, 186

overview, 187 “88

Pretty Good Privacy, 188 “90

X.509, 190 “93

Public key cryptography

overview, 96 “100, 103

provable security, 89

types, 100 “3

Public key cryptography standard 1, 168 “69

Public key digital watermarking, 354 “55

Public key field, 189

Public key infrastructure, 167, 186 “87, 192, 196, 215, 261

Public key infrastructure authentication and authorization infrastructure, 241 “44

Public-Key Infrastructure Working Group, 185, 187, 193 “96

Public switched telephone network, 2, 118, 121

Publius, 340 “41

Pull model, 244

Push model, 244, 324, 364

Python language, 301