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Parent Directory - 00-cnam-cryptographie.pdf 199K Les Techniques De Cryptographie 007.pdf 143K The Misuse of RC4 in Microsoft Word and Excel 013-jgl.pdf 272K Vérification de protocoles cryptographiques 0501038.pdf 105K Data Tastes Better Seasoned: Introducing the ASH Family of Hashing Algorithms 061.pdf 70K Strengthened Encryption in the CBC Mode 075.pdf 127K An Hybrid Mode of Operation 0764541889.pdf 241K A Primer on Crypto Basics 126.pdf 337K Certificateless Public Key Cryptography 144.pdf 81K ID-based tripartite key agreement with signatures 147.pdf 314K A Parallelizable Enciphering Mode 148.pdf 245K The EMD Mode of Operation (A Tweaked, Wide-Blocksize, Strong PRP) 199.pdf 56K Collisions for Hash Functions MD4, MD5, HAVAL-128 and RIPEMD 1995meadows-asiacrypt94.pdf 134K Formal Verification of Cryptographic Protocols: A Survey 2001_goodman_jssc.pdf 440K An Energy-Efficient Reconfigurable Public-Key Cryptography Processor 2002_HDRThesis-US.pdf 1.7M Le Chiffrement Asymetrique et la Securite Prouvee 2004_sac_A4.pdf 207K Design and Implementation of a Crypto Processor and Its Application to Security System 20thCenturyCryptoSpeech.txt 25K The Five Great Inventions of Twentieth Century Cryptography 4.pdf 466K Design and Implementation of a Crypto Processor and Its Application to Security System AB-9800.pdf 233K Recent Developments in the Design of Conventional Cryptographic Algorithms AES Algorithm Efficiency.html 72K AFP-crypto-liberee.html 2.0K L'usage de la cryptologie va en outre devenir totalement libre AGPS_01OCFB-paper.pdf 279K Optimized Self-Synchronizing Mode of Operation BRICS-RS-94-38.pdf 293K Enhancing the Strength of Conventional Cryptosystems CHJ_02ge.pdf 275K GEM: a Generic Chosen-Ciphertext Secure Encryption Method CSE-97-15.pdf 466K The Security of the Cipher Block Chaining Message Authentication Code Chap_07.pdf 167K Cryptologie Cryptography-1.pdf 73K Cryptography: Public Key Cryptography; Mathematical Preliminaries Cryptography-3.pdf 72K Cryptography: RSA Encryption and Decryption CypherpunkManifesto.txt 5.2K A Cypherpunk's Manifesto by Eric Hughes DPA.pdf 217K Differential Power Analysis FeteSc.pdf 160K Arithmétique et cryptologie Grund_Symmetric-Cryptography_Paper.pdf 367K Symmetric Cryptography HAVAL_paper.pdf 268K HAVAL - A One-Way Hashing Algorithm with Variable Length of Output I22Diff.pdf 7.9K The Export of Cryptography in the 20th Century and the 21st I2_cryptologie.pdf 64K Introduction à la cryptologie et aux cryptosystèmes IC_TECH_REPORT_199938.pdf 183K Formal methods in the design of cryptographic protocols IDEA_0304.pdf 308K Design and Implementation of a Crypto Processor and Its Application to Security System IntroCrypto_fr.pdf 2.8M Introduction à la cryptographie LeeShiYinRivestRobshaw-OnPermutationOperationsInCipherDesign.pdf 115K On Permutation Operations in Cipher Design LinuxChiffrement.pdf 399K Chiffrement de données sous GNU/Linux NMWd95ca.pdf 105K Are Crypto-Accelerators Really Inevitable? NT.pdf 240K Number Theory and Cryptography Nac95abs.pdf 87K Signatures numeriques et preuves a divulgation nulle, cryptanalyse, defense et outils algorithmiques PB-472.pdf 157K Practically secure Feistel ciphers Part_III.pdf 520K Symmetric Key Cryptography QC.pdf 1.8M Quantum cryptography RHUL-MA-2001-5.pdf 501K Design, analysis and applications of cryptographic techniques RSA02.pdf 855K Mathematiques du secret RSA_hardware_implementation.pdf 279K RSA Hardware Implementation RabinCryptosystem.txt 8.2K Description of the Rabin Public Key Cryptosystem RivestKaliski-RSAProblem.pdf 97K RSA Problem SaveVig.pdf 476K Developing a Strong Cipher Simplecrypto.pdf 42K One-Time Pad SubstGen.pdf 79K Solving Substitution Ciphers with Genetics Algorithm SurveyAsynchExt.pdf 149K A Survey of Asynchronous Extensions of Block Cipher Modes of Operation The_simple_ideal_cipher_system.pdf 104K The simple ideal cipher system TuringPres.pdf 270K Turing: a fast software stream cipher UserAuth.pdf 390K User Authentication Principles and Methods Wits00.pdf 29K On the Perfect Encryption Assumption aes-crypto.pdf 304K Essential Algebraic Structure Within the AES alibaba.pdf 227K How To Explain Zero-Knowledge Protocols to Your Children andreas3.pdf 2.3M How secure is a cipher? arit.pdf 202K bear-lion.pdf 152K Two Practical and Provably Secure Block Ciphers: BEAR and LION bit_order.pdf 66K Input and Output Block Conventions for AES Encryption Algorithms bsa-final-report.txt 29K Minimal Key Lengths for Symmetric Ciphers to Provide Adequate Commercial Security c.pdf 99K Weak Keys cbtwirl.pdf 118K On the Cost of Factoring RSA-1024 cfs.pdf 82K A Cryptographic File System for Unix cfskey.pdf 42K Key Management in an Encrypting File System chaffing-and-winnowing.txt 25K Chaffing and Winnowing: Confidentiality without Encryption ches99.pdf 181K A High-Performance Flexible Architecture for Cryptography cmc.pdf 750K A Tweakable Enciphering Mode cocaine-auction-protocol.pdf 227K The Cocaine Auction Protocol: On The Power Of Anonymous Broadcast code.pdf 198K concours_aes.pdf 471K crypt.talk.pdf 100K DNA-based Cryptography crypto.pdf 217K crypto_mod.pdf 173K Mathematical Models in Public-Key Cryptology crypto_moderne.pdf 205K La cryptologie moderne cryptoanalyse.pdf 64K Elements de Cryptoanalyse cryptography_new.pdf 219K An Introduction to Traditional Cryptography and Cryptanalysis for Amateurs cryptosizes.pdf 438K Selecting Cryptographic Key Sizes cucs-021-04.pdf 131K Design and Implementation of a Crypto Processor and Its Application to Security System dean02.pdf 94K Cryptography as a Network Service djalil-crypto.pdf 157K Quelques mots sur la cryptographie elec6703-2-3.pdf 60K Encryption Algorithms esm.pdf 60K A General Encryption Scheme Based on MDS Code essay-037.pdf 31K Why cryptography is harder than it looks examples.pdf 37K Some Examples of the PKCS Standards fawkes.pdf 122K A New Family of Authentication Protocols fox_ujf.pdf 402K Fox: une nouvelle famille d'algorithmes de chiffrement par bloc fse93.pdf 77K Performance of Symmetric Ciphers and One-way Hash Functions fusion.pdf 148K All-Or-Nothing Encryption and The PAckage Transform gladman.pdf 45K Implementation Experience with AES Candidate Algorithms herys.pdf 10K Design and Analysis of Block Cipher with Variable Word-Size Based on Dedicated Hash Functions: SHACAL-V high-perf-crypto.pdf 46K Towards High Performance Cryptographic Software histoire_cryptographie.pdf 215K Histoire de la cryptographie inc1.pdf 259K Incremental Cryptography: The Case of Hashing and Signing inc2.pdf 237K Incremental Cryptography and Application to Virus Protection inchash.pdf 427K A New Paradigm for Collision-free Hashing Incrementality at Reduced Cost internet-modes.pdf 62K Cryptographic Modes of Operation for the Internet ipsec.pdf 216K Weak Keys katmct.pdf 98K Description of Known Answer Tests and Monte Carlo Tests for AES Candidate Algorithm Submissions key-mngmt-crypto-fs.pdf 57K Key Management in an Encrypting File System keyrecovery.pdf 169K The Design and Implementation of Protocol-Based Hidden Key Recovery lars_knudsen.pdf 301K Contemporary Block Ciphers lpe.pdf 242K On the Construction of Variable-Input-Length Ciphers marco.pdf 233K The Future of Cryptography Under Quantum Computers matrices.pdf 121K Using Matrices for Cryptography md5-vs-sha.txt 4.8K A quick comparison on MD5 vs SHA md5_someday.pdf 55K MD5 To Be Considered Harmful Someday memoire-julien.pdf 720K Protocoles cryptographiques avec des participants limités en espace mémoire modesv2.pdf 118K Modes of Operation of a Block Cipher musee.pdf 718K Un apercu de l'histoire de la cryptologie new_introduction_crypto.pdf 278K Introduction à la cryptographie oakland.pdf 263K Cryptographic Key Generation from Voice ocb-full.pdf 659K OCB: A Block-Cipher Mode of Operation for Efficient Authenticated Encryption ocf.pdf 133K The Design of the OpenBSD Cryptographic Framework odyssey.pdf 120K Using Voice to Generate Cryptographic Keys onetime.pdf 50K One-Time Pad or Vernam Cipher paper716.pdf 76K Quantum Cryptography: Is your data safe even when somebody looks ? 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perf.pdf 179K Cryptographic File Systems Performance: What You Don't Know Can Hurt You pitfalls.pdf 56K Security Pitfalls In Cryptography preprint_frey.pdf 336K Mathematical Background of Public Key Cryptography qbsc_2004.pdf 62K Design and Implementation of a Crypto Processor and Its Application to Security System queensland.pdf 202K Crypto in Europe - Markets, Law and Policy robustness.pdf 123K Robustness principles for public key protocols secret_key_cryptography.pdf 1.1M Secret Key Cryptography shi_asap00.pdf 63K Bit Permutation Instructions for Accelerating Software Cryptography skipjack-kea.pdf 214K SKIPJACK and KEA Algorithm Specifications text.pdf 26K Design and Implementation of Three Cryptographic Systems: DH Key Exchange, DH Digital Signature, RSA thesis-ac.pdf 668K Weak Keys thesis.pdf 1.6M Facilitating the Modelling and Automated Analysis of Cryptographic Protocols trapdoor.pdf 41K A hard problem: Disclosing how to break public key cryptosystems understanding_ssl.pdf 265K Understanding Digital Certificates and Secure Sockets Layer usenix00.pdf 293K An Open-source Cryptographic Coprocessor wake.pdf 150K A Bulk Data Encryption Algorithm

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TESTIMONY BY GEOFFREY S. GOODFELLOWBefore the Subcommittee on Transportation, Aviation and Materials on the subject of Telecommunications Security and Privacy.## 26 September 1983

## Table of Contents 1. Introduction 2. The Nature of Computer Hackers and Hacking. 3. What Can and Should Be Done to Help Abate The Unsavory Hacking Problem? 4. Let Us Not Lull Ourselves into a False Sense of Security. 5. Recommendations 6. Biography (The Making of a Hacker)

## 1.Introduction

My name is Geoffrey S. Goodfellow. I am primarily employed by the Computer Science Laboratory at SRI International, Menlo Park, California. For the past 10 years at SRI, I have been involved in research efforts related with packet switched computer network communication systems, protocols and security technologies. I have also been involved in various operating and sub-system development projects. Currently, my responsibilities include a position as Principle Investigator of SRI's involvement in a Department of Defense program aimed at developing and proving secure computer systems, that operate at different security levels and communicate via networks. A detailed biography of my career from 7th grade school where I discovered computers (which eventually lead to my permanent abandonment of the formal educational system during high school) to how I got to where I am today with no degrees or any type of equivalency to my name is included at the end of my testimony. I am a coauthor of the Hacker's Dictionary -- A Guide to the World of Computer Wizards, a new book being published this fall. THE STATEMENTS INCLUDED HEREIN ARE MY OWN AND DO NOT NECESSARILY REPRESENT THOSE OF SRI INTERNATIONAL OR ANY CLIENTS OF SRI.## 2. The Nature of Computer Hackers and Hacking.

The primary nature of a computer hacker can be defined as follows: - A person who enjoys learning or knowing the details of computer systems and how to stretch their capabilities, as opposed to most users of computers, who prefer to learn or know only the minimum amount necessary in order to get their job done. - One who programs computers enthusiastically, for the sheer fun of it, and gets a non professional amount of enjoyment out of using them. - A person capable of appreciating the irony and beauty (i.e.`hack value') of a program. - A person who is good at programming quickly or is an expert on aparticular program. (This definition and the proceeding ones are correlated, and people who fit them congregate). Unfortunately, though, hacking has an unsavory faction to it: - A malicious or inquisitive meddler (i.e. `poacher') who tries to discover information by poking around.For example, a "password hacker" is one who tries, possibly by deceptive or illegal means, to discover other people's computer passwords. - A "network hacker" is one who tries to learn about the computer network (possibly because he wants to interfere--one can tell the difference only by context, tone of voice and manner of approach). [...]

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