Glossary of Terms

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T

T&E

TA

TACTED

TACTERM

Tactical Communication System

TAG

Tailing

TAISS

Tamper-Indicative Seal

Tanked

Tap

Tapes

Tar

Tar And Feather

Target

Targeted attacks

Target-of-opportunity attacks

Tasking

TASO

Taste

Tayste

TCB

TCD

TCP (Transmission Control Protocol)

TCP port scanning

TCP/IP standards

TCP/IP-OSI architecture

TCS

TCSEC

TCSEC/ITSEC/Common Criteria

TCU

TD

TD:D1

TD:D2

TDBI

TDM

TDMA

Tea, ISO Standard Cup Of

Technical Attack

Technical Document

Technical Information

Technical Penetration

Technical Point Of Contact

Technical Rationale Behind Csc-Std-003-85: Computer Security Requirements

Technical Review

Technical Review Board

Technical Security

Technical Security Guidance

Technical Security Hazard

Technical Security Material

Technical Surveillance Countermeasures

Technical Vulnerability

Technological Attack

Technological Threats

Technology Trade-Offs

Technology Trends

Techspeak. Square Tape

TECO

TED

Tee

TEI

TEK

Telecommunication

Telecommunication Architecture

Telecommunication Facilities

Telecommunication Service

Telecommunication System

Telecommunication System Operator

Telecommunications

Telecommunications And Automated Information Systems Security

Telecommunications closet

Telecommunications Security

Telecommunications System

Telemetry Intelligence

Telephone Exchange

Teleprocessing Security

Telerat

Teletex

Teletypewriter (TTY)

Teletypewriter Control Unit

Teletypewriter Exchange Service

TELINT

TELNET

TEMP

TEMPEST

TEMPEST Channel

TEMPEST Encoding

Temporal Key Integrity Protocol (TKIP)

Tense

Tenured Graduate Student

TEP

Tera

Terminal Adapter

Terminal Area Security Officer

Terminal Brain Death

Terminal Identification

Terminal Illness

Terminal Junkie

Terpri

Test

Test And Validation

Test Detection System

Test Documentation

TEST:D1

TEST:D2

TeX:

Text

TFM

TFM:D1

TFM:D2

TFS

TFTP (Trivial File Transfer Protocol)

TGT (ticket granting ticket)

Theft

Theory

Thinko

Third-Party Evaluation

Thrash

Thread

Threat

Threat Analysis

Threat Assessment

Threat enumeration

Threat Monitoring

Threat Realization Cost

Threat severity

Threat Viability Threshold

Threat, Postulated

Three-Finger Salute

Thumb

Thunk

Tick

Ticket granting ticket (TGT)

Ticket-Granting Service

Ticket-Oriented

Tick-List Features

Time

Time Bomb/time-Bomb

Time Compliance Date

Time Of Occurrence

Time T

Time-Dependent Password

Time-Division Multiple Access

Time-Division Multiplexing

Time-Division Switching

Times-Or-Divided-By

Time-to-live (TTL)

Tinkerbell Program

TIOCC

Tip Of The Ice-Cube

Tits On A Keyboard

TKIP (Temporal Key Integrity Protocol)

TLA

TLS

TLS (Transport Layer Security)

TMC

TMRC

TMRCie

TNI

TNIEG

Toad

Toast

Toaster

Toggle

Token

Token-Bus Network

Token-Ring Network

Tool

Top-Level Specification

Torn-Tape Relay

Touch-Sensitive

Tourist

Tourist Information

Toy

TPC

TPI

TPOC

TPWG

Tracert

Track

Traditional COMSEC Program

Traffic

Traffic Analysis

Traffic Capacity

Traffic Encryption Key

Traffic F Low Security

Traffic Flow Confidentiality

Traffic Flow Information

Traffic Flow Security

Traffic Padding

Traffic-Flow Security

Trailer

TRANSEC

Transfer Characteristics

Transfer Function

Translating Program

Translation table

Transmission Block

Transmission Control Protocol (TCP)

Transmission Frame

Transmission Security

Transmission Security Key

Transparent Interface

Transparent protection

Transport Layer

Transport Layer Security (TLS)

Transportability

Transportable Station

Transportation Of Media

Trap

Trash

Trawl

TRB

Triple DES (3DES)

Triplet

Trit

TRI-TAC

TRI-TAC Equipment

Trivial

Trivial File Transfer Protocol (TFTP)

Troff:

Troglodyte Mode

Trojan horse backdoor program

Troll

Tron

TRR

Truncation Error

Trunk

Trunk Encryption Device (TED)

Trust

Trusted Computer System

Trusted Computer System Evaluation Criteria

Trusted Computer System Evaluation Criteria (Orange Book)

Trusted Computing Base

Trusted Courier

Trusted Database Interpretation

Trusted Database Management System Interpretation Of The Tcsec

Trusted Distribution

Trusted Element

Trusted Facility Management

Trusted Facility Manual

Trusted Functionality

Trusted Identification Forwarding

Trusted Network

Trusted Network Interface

Trusted Network Interpreation

Trusted Network Interpretation (Red Book)

Trusted Network Interpretation Environments Guideline

Trusted Process

Trusted Product Evaluation Program

Trusted Product Evaluation Questionnaire

Trusted Product Evaluations

Trusted Products

Trusted Software

Trusted Subject

Trusted Unix Working Group

Trustworthy Element

TSCM

TSEC

TSEC Nomenclature

TSK

TTBT

TTL (time-to-live)

TTLS

Tty

TTY/TDD

Tube

Tunable

Tune

Tuning

Tunneled TLS (TTLS)

Turist

Turnaround Time

Turnkey

TV

Tweak

Tweeter

TWENEX:

Twiddle

Twink

Twit

Two Person Integrity

Two Pi

Two windows attack

Two-factor authentication

Twonkie

Two-Out-Of-Five Code

Two-Person Control

Two-Person Integrity

Two-Way Encryption

TWX

Type 1 Magnetic Media

Type 2 Magnetic Media

Type 3 Algorithm

Type 4 Algorithm

Type Accreditation

Thunk

/thuhnk/ n. "A piece of coding which provides an address", according to P. Z. Ingerman, who invented thunks in 1961 as a way of binding actual parameters to their formal definitions in Algol-60 procedure calls. If a procedure is called with an expression in the place of a formal parameter, the compiler generates a thunk which computes the expression and leaves the address of the result in some standard location. 2. Later generalized into an expression, frozen together with its environment, for later evaluation if and when needed (similar to what in techspeak is called a `closure'). The process of unfreezing these thunks is called `forcing'. 3. A stubroutine, in an overlay programming environment, that loads and jumps to the correct overlay. Compare trampoline. 4. People and activities scheduled in a thunklike manner. "It occurred to me the other day that I am rather accurately modeled by a thunk -- I frequently need to be forced to completion. " --- paraphrased from a plan file. Historical note There are a couple of onomatopoeic myths circulating about the origin of this term. The most common is that it is the sound made by data hitting the stack; another holds that the sound is that of the data hitting an accumulator. Yet another suggests that it is the sound of the expression being unfrozen at argument-evaluation time. In fact, according to the inventors, it was coined after they realized (in the wee hours after hours of discussion) that the type of an argument in Algol-60 could be figured out in advance with a little compile-time thought, simplifying the evaluation machinery. In other words, it had `already been thought of'; thus it was christened a `thunk', which is "the past tense of `think' at two in the morning".