Index_U

T

Tap code, 33, 34

Tattoos, 47

TCP/IP (Transmission Control Protocol), 66–75

encoding information in header, 67–69

Initial Sequence Number (ISN) field, 69–70

manipulation of IP identification field, 69–70

packet capture, 190–191

TCP acknowledge sequence number field bounce, 72–74

Technical steganography, 47–53

Telegraph, 22

Terrorism, 179–180

Text files, 56–57

TextHide, 152

TextMark, 151–152

Texto (steganography software), 144, 145

Text semagrams, 45–46

Texture block, 53

Thatcher, Margaret, 34

Three-way handshake, 71

Threshold fingerprinting, 96

TIFF images, 131

Tiny spaces, 45

Townsend, Robert, 23

Traitors, 96

Transform domain techniques, 41

Transform space, 41

Transform techniques, 49–52

Transposition, 20

TripleDES encryption algorithm, 132

Trithemius, Johannes, 18–19

Turning grille, 31–32

TwoFish algorithm, 101, 123

Type offsetting, 10–11, 45

Type spacing, 10–11, 45

Typewriter correction ribbon, 47