Leveraging Intel SGX to Create a Nondisclosure Cryptographic library
|
|
|
- Collin Henderson
- 6 years ago
- Views:
Transcription
1 CS Computer and Network Security Project presentation Leveraging Intel SGX to Create a Nondisclosure Cryptographic library Mohammad H Mofrad & Spencer L Gray University of Pittsburgh Thursday, December 15, 2016 hasanzadeh@cspittedu & slg94@cspittedu 1
2 Preface Motivation Intel Software Guard Extension (SGX) SGX simulator Linux SGX SDK Project details Cryptographic Algorithms Key generation Hashes SHA 256 HMAC SHA 256 Encryption AES ECB AES CBC Discussion Future work 2
3 Motivation Threat Model An adversary has complete access to the OS No access to the hardware of the machine Need a way to keep important data confidential under this model Solution: a cryptographic library inside trusted hardware Cryptographic keys never leave the enclave
4 Introducing the Intel SGX Intuition: Computing devices are not trustworthy Inspired by Trusted Platform Module (TPM) TPM implemented the context of software attestation using hardware modules Enclaves are isolated regions of memory for code and data Encrypted Enclave Page Caches (EPCs) in RAM Enclave In SGX only CPU is trusted Added 18 new ISA Instructions APP APP APP Supervisor instructions: ECREATE, EINIT, User instructions: EENTER, EEXIT, X OS Features: Reduced attack surface HW + SGX Attestation (local/remote) & Sealing Trusted Untrusted 4
5 Related Work SGX1 (Initial release) 1 Innovative instructions and software model for isolated execution Introducing the new instruction set 2 Using innovative instructions to create trustworthy software solutions One Time Password (OTP), Secure Video Conferencing (SVC), and etc case studies 3 Innovative technology for CPU based attestation and sealing How to add SGX into Software lifecycle SGX2 (Latest release) 1 Intel SGX support for dynamic memory management inside an enclave Added support for dynamic memory management Added support for changing permissions Secure exception handling Applications: Cloud, Network Function Virtualization (NFV), Containeraization 5
6 SGX Emulator Linux SGX SDK from 01org Code: C and C++ INTEL OPEN SOURCE org Github repository at Supported OS Ubuntu 1404-LTS 64-bit References Intel SGX SDK for Linux OS programming reference Intel SGX SDK for Linux OS developer reference Intel Developer Zone Our implementations servers as an example in SampleCode directory of linux-sgx CryptoEnclave project Github repository: Algorithms from libtomcrypt Hashes: SHA 256 and HMAC SHA 256 Symmetric key: AES ECB and CBC with key lengths 6
7 Cryptographic Library We chose LibTomCrypt Designed to be extremely modular Easy to take only the algorithms we needed Minimize our trusted computing base Other options explored: OpenSSL and Crypto++ OpenSSL was designed to be fully downloaded Crypto++ was very unorganized (all files were in 1 directory) 7
8 Implementation Details Ubuntu 1404 Virtual Machine Architecture: 64-bit virtual Machine RAM: 2GB Disk: 8GB Crypto Enclave project (~500) Application code Command line I/O interface Utility functions (~2300) Enclave implementation (~1600) Modified libtomcrypt borrowed codes (~700) Enclave crypto wrappers for crypto operations (~50) Enclaveedl Enclaveconfigxml Makefile 8
9 Sample Scenario Appcpp Enclavecpp Untrusted code & data Int main(){ Sgx_create_enclave() dump_secret() get_secret() Sgx_destroy_enclave() } Char secret[10]; dump_secret() { } get_secret() { } Trusted code Makefile gcc, g++ Linux SGX SDk App binary 9
10 Key generation Symmetric keys- just need random bytes Depends on a good pseudo random number generator Poor key generation leads to poor security Asymmetric keys- based upon fancy math Still depend on random numbers! If the base random numbers can be predicted, private keys can be easily computed The SGX already has key generation functions built in sgx_read_rand(key, keylen) 10
11 Hash Function Cryptographic primitive to provide integrity to data The base algorithm can be computed safely in user space One-way function No secrets are involved HMAC depends on hash function to operate Keyed hash function (cannot be computed safely in user space) Provides higher level of data integrity
12 Hash Implementation LibTomCrypt s functions: sha256_init() Initializes the hash sha256_process() - Takes input and uses it to build hash sha256_done() Writes out the final hash to an output buffer Our function gen_sha256() is essentially a wrapper for LibTomCrypt s implementation 12
13 SGX-enabled SHA 256 open(file N ) app enclave read() gen_sha256() read() gen_sha256() read() gen_sha256() close(file) EID + BUFFER = 4K EID + BUFFER = 4K EID + BUFFER 4K EID get_sha256() EID + SHA 256 SHA 256 gen_sha256(): sha256_init() sha256_process() gen_sha256(): sha256_process() gen_sha256(): sha256_process() sha256_done() get_sha256(): memcpy(sha 256 ) 13
14 SGX-enabled HMAC SHA 256 open(file N ) gen_key() app EID + KLEN enclave gen_key(klen): read() gen_hmac_sha256() read() gen_hmac_sha256() read() gen_hmac_sha256() close(file) get_hmac_sha256() HMAC 256 EID + BUFFER = 4K EID + BUFFER = 4K EID + BUFFER 4K EID EID + HMAC 256 gen_hmac_sha256(): hmac_init() hmac_process() gen_hmac_sha256(): hamc_process() gen_hmac_sha256(): hmac_process() hmac_done() get_hmac_sha256(): memcpy(hmac 256 ) 14
15 Symmetric Key Cryptography Uses same key for encryption and decryption Encrypts/decrypts data in fixed sized blocks (usually) Modes of block chaining ECB-same block will always encrypt to the same cipher text CBC-Cipher text is partially determined by previous block
16 SGX-enabled AES ECB (Encryption) app enclave open(file N ) EID + KLEN gen_key() gen_key(klen ): read() encrypt_aes_ecb() read() encrypt_aes_ecb() read() encrypt_aes_ecb() close(file) CIPHER N EID + BUFFER = 4K EID + CIPHER = 4K EID + BUFFER = 4K EID + CIPHER = 4K EID + BUFFER 4K EID + CIPHER = 4K encrypt_aes_ecb(): SETUP() ECB_ENC() encrypt_aes_ecb(): ECB_ENC() encrypt_aes_ecb(): ECB_ENC() ZERO_PADDING() 16
17 SGX-enabled AES ECB (Decryption) app enclave decrypt_aes_ecb() decrypt_aes_ecb() EID + CIPHER = 4K EID + PLAINTXT = 4K EID + CIPHER= 4K EID + PLAINTXT = 4K decrypt_aes_ecb(): ECB_DEC() decrypt_aes_ecb(): ECB_DEC() decrypt_aes_ecb() EID + CHIPHER = 4K decrypt_aes_ecb(): EID + PLAINTXT 4K ECB_DEC() PLAINTXT N RM_ZERO_PADDING() 17
18 SGX-enabled AES CBC (Encryption) read() encrypt_aes_cbc() read() encrypt_aes_cbc() app EID + BUFFER = 4K EID + CIPHER = 4K EID + BUFFER = 4K enclave open(file N ) EID + KLEN gen_key() gen_key(klen ): EID + CIPHER = 4K encrypt_aes_cbc(): gen_iv(iv 128 ) setup_key() cbc_encrypt() encrypt_aes_ecb(): cbc_encrypt() read() encrypt_aes_cbc() close(file) CIPHER N EID + BUFFER 4K EID + CIPHER = 4K encrypt_aes_cbc(): cbc_encrypt() ZERO_PADDING() 18
19 SGX-enabled AES CBC (Decryption) app enclave decrypt_aes_cbc() decrypt_aes_cbc() EID + CIPHER = 4K EID + PLAINTXT = 4K EID + CIPHER= 4K EID + PLAINTXT = 4K decrypt_aes_cbc(): setup_key() cbc_decrypt() decrypt_aes_cbc(): cbc_decrypt() decrypt_aes_cbc() EID + CHIPHER = 4K decrypt_aes_cbc(): EID + PLAINTXT 4K cbc_decrypt() PLAINTXT N RM_ZERO_PADDING() 19
20 Design Decisions Why we choose 4KB buffer size? OS page size 4KB Multiple of 16 Enclave Heap size is a multiple of 4 Why we pass buffers of plaintext and ciphertext back and forth? We don t want to exhaust the enclave memory In hardware mode, the Enclave heap size at max ~90MB Why we have a huge amount of I/O in this project? The basic idea here is that if we encrypt the keys and data inside the enclave, no one can extract the keys and original data even if an attacker can access them! The silver bullet of our project is that instead of bringing an insecure computation to the data, we bring the data to the enclave to securely perform the computations 20
21 Discussion Our implementation meets our goals under our threat model Cryptographic keys never leave the enclave A compromised OS cannot recover secrets except through brute force attacks The security of the keys relies on the security of the SGX Discovery of attacks against SGX threaten our system Still weak to hardware and side channel attacks 21
22 Discussion What drives Intel s incentive to launch SGX For the good of the users ie adding another level of security on top of OS For the good of its market ie software that are SGX-enabled Need to accept the Intel license agreement Need to rely on Intel servers for remote attestation and sealing Literally, Intel is putting itself in the middle of software lifecycle Small Trusted Code Base (TCB) We only store keys, and hashes and nothing else We barely need less than 100KB of memory to handle a user session no matter what is the file size (~200) The computation are done inside the enclave Keys may never leave the enclave 22
23 Future Work Current uses are limited! Expand the existing library Public key cryptography (RSA, ECC, Diffie Hellman) Pseudo random number generating algorithms Protocol to allow two enclaves to share keys Allow separate users to safely communicate using keys sealed in enclaves M1 E{M1} E{M2} M2 E{M1} E{M2} E{M1} M1 M2 E{M2} 23
24 24
Computer Security: Principles and Practice
Computer Security: Principles and Practice Chapter 2 Cryptographic Tools First Edition by William Stallings and Lawrie Brown Lecture slides by Lawrie Brown Cryptographic Tools cryptographic algorithms
PROTECTING CONVERSATIONS
PROTECTING CONVERSATIONS Basics of Encrypted Network Communications Naïve Conversations Captured messages could be read by anyone Cannot be sure who sent the message you are reading Basic Definitions Authentication
CSE 127: Computer Security Cryptography. Kirill Levchenko
CSE 127: Computer Security Cryptography Kirill Levchenko October 24, 2017 Motivation Two parties want to communicate securely Secrecy: No one else can read messages Integrity: messages cannot be modified
9/30/2016. Cryptography Basics. Outline. Encryption/Decryption. Cryptanalysis. Caesar Cipher. Mono-Alphabetic Ciphers
Cryptography Basics IT443 Network Security Administration Slides courtesy of Bo Sheng Basic concepts in cryptography systems Secret cryptography Public cryptography 1 2 Encryption/Decryption Cryptanalysis
Cryptography Basics. IT443 Network Security Administration Slides courtesy of Bo Sheng
Cryptography Basics IT443 Network Security Administration Slides courtesy of Bo Sheng 1 Outline Basic concepts in cryptography systems Secret key cryptography Public key cryptography Hash functions 2 Encryption/Decryption
CLASS AGENDA. 9:00 9:15 a.m. 9:15 10:00 a.m. 10:00 12:00 p.m. 12:00 1:00 p.m. 1:00 3:00 p.m. 3:00 5:00 p.m.
CLASS AGENDA INTEL SGX OVERVIEW... DEVELOPER TOOLKIT... DEVELOPING FOR INTEL SGX... BREAK FOR LUNCH... PROVISIONING SECRETS... DATA SEALING...... 9:00 9:15 a.m. 9:15 10:00 a.m. 10:00 12:00 p.m. 12:00 1:00
There are numerous Python packages for cryptography. The most widespread is maybe pycrypto, which is however unmaintained since 2015, and has
1 There are numerous Python packages for cryptography. The most widespread is maybe pycrypto, which is however unmaintained since 2015, and has unpatched buffer-overflow vulnerabilities. New projects should
Security+ Guide to Network Security Fundamentals, Third Edition. Chapter 11 Basic Cryptography
Security+ Guide to Network Security Fundamentals, Third Edition Chapter 11 Basic Cryptography Objectives Define cryptography Describe hashing List the basic symmetric cryptographic algorithms 2 Objectives
Cryptographic Concepts
Outline Identify the different types of cryptography Learn about current cryptographic methods Chapter #23: Cryptography Understand how cryptography is applied for security Given a scenario, utilize general
Information Security CS526
Information CS 526 Topic 3 Ciphers and Cipher : Stream Ciphers, Block Ciphers, Perfect Secrecy, and IND-CPA 1 Announcements HW1 is out, due on Sept 10 Start early, late policy is 3 total late days for
A Comparison Study of Intel SGX and AMD Memory Encryption Technology
A Comparison Study of Intel SGX and AMD Memory Encryption Technology Saeid Mofrad, Fengwei Zhang Shiyong Lu Wayne State University {saeid.mofrad, Fengwei, Shiyong}@wayne.edu Weidong Shi (Larry) University
Connecting Securely to the Cloud
Connecting Securely to the Cloud Security Primer Presented by Enrico Gregoratto Andrew Marsh Agenda 2 Presentation Speaker Trusting The Connection Transport Layer Security Connecting to the Cloud Enrico
Crypto Background & Concepts SGX Software Attestation
CSE 5095 & ECE 4451 & ECE 5451 Spring 2017 Lecture 4b Slide deck extracted from Kamran s tutorial on SGX, presented during ECE 6095 Spring 2017 on Secure Computation and Storage, a precursor to this course
Computer Networks. Network Security and Ethics. Week 14. College of Information Science and Engineering Ritsumeikan University
Computer Networks Network Security and Ethics Week 14 College of Information Science and Engineering Ritsumeikan University Security Intro for Admins l Network administrators can break security into two
CSE484 Final Study Guide
CSE484 Final Study Guide Winter 2013 NOTE: This study guide presents a list of ideas and topics that the TAs find useful to know, and may not represent all the topics that could appear on the final exam.
Computer Security. 10r. Recitation assignment & concept review. Paul Krzyzanowski. Rutgers University. Spring 2018
Computer Security 10r. Recitation assignment & concept review Paul Krzyzanowski Rutgers University Spring 2018 April 3, 2018 CS 419 2018 Paul Krzyzanowski 1 1. What is a necessary condition for perfect
Massively Parallel Hardware Security Platform
Massively Parallel Hardware Security Platform Dan Cvrček, Enigma Bridge, UK dan@enigmabridge.com Petr Švenda, CRoCS, Masaryk University, CZ svenda@fi.muni.cz Overview 1. Cryptography as a Service 2. Usage
Computer Security. 08. Cryptography Part II. Paul Krzyzanowski. Rutgers University. Spring 2018
Computer Security 08. Cryptography Part II Paul Krzyzanowski Rutgers University Spring 2018 March 23, 2018 CS 419 2018 Paul Krzyzanowski 1 Block ciphers Block ciphers encrypt a block of plaintext at a
Isolating Operating System Components with Intel SGX
SysTEX 16 Trento, Italy Isolating Operating System Components with Intel SGX Lars Richter, Johannes Götzfried, Tilo Müller Department of Computer Science FAU Erlangen-Nuremberg, Germany December 12, 2016
Lecture 1 Applied Cryptography (Part 1)
Lecture 1 Applied Cryptography (Part 1) Patrick P. C. Lee Tsinghua Summer Course 2010 1-1 Roadmap Introduction to Security Introduction to Cryptography Symmetric key cryptography Hash and message authentication
Cryptography III. Public-Key Cryptography Digital Signatures. 2/1/18 Cryptography III
Cryptography III Public-Key Cryptography Digital Signatures 2/1/18 Cryptography III 1 Public Key Cryptography 2/1/18 Cryptography III 2 Key pair Public key: shared with everyone Secret key: kept secret,
RISCV with Sanctum Enclaves. Victor Costan, Ilia Lebedev, Srini Devadas
RISCV with Sanctum Enclaves Victor Costan, Ilia Lebedev, Srini Devadas Today, privilege implies trust (1/3) If computing remotely, what is the TCB? Priviledge CPU HW Hypervisor trusted computing base OS
Distributed Systems. 26. Cryptographic Systems: An Introduction. Paul Krzyzanowski. Rutgers University. Fall 2015
Distributed Systems 26. Cryptographic Systems: An Introduction Paul Krzyzanowski Rutgers University Fall 2015 1 Cryptography Security Cryptography may be a component of a secure system Adding cryptography
Computer Security. 08r. Pre-exam 2 Last-minute Review Cryptography. Paul Krzyzanowski. Rutgers University. Spring 2018
Computer Security 08r. Pre-exam 2 Last-minute Review Cryptography Paul Krzyzanowski Rutgers University Spring 2018 March 26, 2018 CS 419 2018 Paul Krzyzanowski 1 Cryptographic Systems March 26, 2018 CS
CIS 4360 Introduction to Computer Security Fall WITH ANSWERS in bold. First Midterm
CIS 4360 Introduction to Computer Security Fall 2010 WITH ANSWERS in bold Name:.................................... Number:............ First Midterm Instructions This is a closed-book examination. Maximum
Distributed Key Management and Cryptographic Agility. Tolga Acar 24 Feb. 2011
Distributed Key Management and Cryptographic Agility Tolga Acar 24 Feb. 2011 1 Overview Distributed Key Lifecycle Problem statement and status quo Distributed Key Manager Typical application scenario and
CIS 4360 Secure Computer Systems Applied Cryptography
CIS 4360 Secure Computer Systems Applied Cryptography Professor Qiang Zeng Spring 2017 Symmetric vs. Asymmetric Cryptography Symmetric cipher is much faster With asymmetric ciphers, you can post your Public
TCG TPM2 Software Stack & Embedded Linux. Philip Tricca
TCG TPM2 Software Stack & Embedded Linux Philip Tricca philip.b.tricca@intel.com Agenda Background Security basics Terms TPM basics What it is / what it does Why this matters / specific features TPM Software
L13. Reviews. Rocky K. C. Chang, April 10, 2015
L13. Reviews Rocky K. C. Chang, April 10, 2015 1 Foci of this course Understand the 3 fundamental cryptographic functions and how they are used in network security. Understand the main elements in securing
Intel Software Guard Extensions
Intel Software Guard Extensions Dr. Matthias Hahn, Intel Deutschland GmbH July 12 th 2017 cryptovision Mindshare, Gelsenkirchen Intel SGX Making Headlines Premium Content requiring Intel SGX on PC Intel
Binding keys to programs using Intel SGX remote attestation
Binding keys to programs using Intel SGX remote attestation Mark D. Ryan London Crypto Day 22 September 2017 1 Intel SGX Intel SGX is a set of processor instructions which allow one: To set up an enclave
The question paper contains 40 multiple choice questions with four choices and students will have to pick the correct one (each carrying ½ marks.).
Time: 3hrs BCA III Network security and Cryptography Examination-2016 Model Paper 2 M.M:50 The question paper contains 40 multiple choice questions with four choices and students will have to pick the
Encryption 2. Tom Chothia Computer Security: Lecture 3
Encryption 2 Tom Chothia Computer Security: Lecture 3 This Lecture Counter Mode (CTR) enryption Diffie Helleman key exchange Public Key Encryption RSA Signing Combining public and symmetric key encryption
Cache Side Channel Attacks on Intel SGX
Cache Side Channel Attacks on Intel SGX Princeton University Technical Report CE-L2017-001 January 2017 Zecheng He Ruby B. Lee {zechengh, rblee}@princeton.edu Department of Electrical Engineering Princeton
Authenticated Encryption in TLS
Authenticated Encryption in TLS Same modelling & verification approach concrete security: each lossy step documented by a game and a reduction (or an assumption) on paper Standardized complications - multiple
CS 161 Computer Security
Raluca Popa Spring 2018 CS 161 Computer Security Homework 2 Due: Wednesday, February 14, at 11:59pm Instructions. This homework is due Wednesday, February 14, at 11:59pm. No late homeworks will be accepted.
Apache Commons Crypto: Another wheel of Apache Commons. Dapeng Sun/ Xianda Ke
Apache Commons Crypto: Another wheel of Apache Commons Dapeng Sun/ Xianda Ke About us Dapeng Sun @Intel Apache Commons Committer Apache Sentry PMC Xianda Ke @Intel Apache Commons Crypto Apache Pig(Pig
Lecture 3: Symmetric Key Encryption
Lecture 3: Symmetric Key Encryption CS996: Modern Cryptography Spring 2007 Nitesh Saxena Outline Symmetric Key Encryption Continued Discussion of Potential Project Topics Project proposal due 02/22/07
Computer Security. 10. Exam 2 Review. Paul Krzyzanowski. Rutgers University. Spring 2017
Computer Security 10. Exam 2 Review Paul Krzyzanowski Rutgers University Spring 2017 March 23, 2018 CS 419 2017 Paul Krzyzanowski 1 Question 1(a) Suppose you come across some old text in the form GEPPQ
CSC/ECE 774 Advanced Network Security
Computer Science CSC/ECE 774 Advanced Network Security Topic 2. Network Security Primitives CSC/ECE 774 Dr. Peng Ning 1 Outline Absolute basics Encryption/Decryption; Digital signatures; D-H key exchange;
Lecture 4: Symmetric Key Encryption
Lecture 4: Symmetric ey Encryption CS6903: Modern Cryptography Spring 2009 Nitesh Saxena Let s use the board, please take notes 2/20/2009 Lecture 1 - Introduction 2 Data Encryption Standard Encrypts by
Practical Aspects of Modern Cryptography
Practical Aspects of Modern Cryptography Lecture 3: Symmetric s and Hash Functions Josh Benaloh & Brian LaMacchia Meet Alice and Bob Alice Bob Message Modern Symmetric s Setup: Alice wants to send a private
SGX Enclave Life Cycle Tracking TLB Flushes Security Guarantees
CSE 5095 & ECE 4451 & ECE 5451 Spring 2017 Lecture 3b SGX Enclave Life Cycle Tracking TLB Flushes Security Guarantees Slide deck extracted from Kamran s tutorial on SGX and Chenglu s security analysis
CIS 4360 Secure Computer Systems Symmetric Cryptography
CIS 4360 Secure Computer Systems Symmetric Cryptography Professor Qiang Zeng Spring 2017 Previous Class Classical Cryptography Frequency analysis Never use home-made cryptography Goals of Cryptography
Graphene-SGX. A Practical Library OS for Unmodified Applications on SGX. Chia-Che Tsai Donald E. Porter Mona Vij
Graphene-SGX A Practical Library OS for Unmodified Applications on SGX Chia-Che Tsai Donald E. Porter Mona Vij Intel SGX: Trusted Execution on Untrusted Hosts Processing Sensitive Data (Ex: Medical Records)
PASSWORDS & ENCRYPTION
PASSWORDS & ENCRYPTION Villanova University Department of Computing Sciences D. Justin Price Fall 2014 CRYPTOGRAPHY Hiding the meaning of a message from unintended recipients. Open source algorithms are
Computer Security CS 526
Computer Security CS 526 Topic 4 Cryptography: Semantic Security, Block Ciphers and Encryption Modes CS555 Topic 4 1 Readings for This Lecture Required reading from wikipedia Block Cipher Ciphertext Indistinguishability
Cryptography MIS
Cryptography MIS-5903 http://community.mis.temple.edu/mis5903sec011s17/ Cryptography History Substitution Monoalphabetic Polyalphabetic (uses multiple alphabets) uses Vigenere Table Scytale cipher (message
Lecture 9a: Secure Sockets Layer (SSL) March, 2004
Internet and Intranet Protocols and Applications Lecture 9a: Secure Sockets Layer (SSL) March, 2004 Arthur Goldberg Computer Science Department New York University artg@cs.nyu.edu Security Achieved by
CSC 774 Network Security
CSC 774 Network Security Topic 2. Review of Cryptographic Techniques CSC 774 Dr. Peng Ning 1 Outline Encryption/Decryption Digital signatures Hash functions Pseudo random functions Key exchange/agreement/distribution
Pass, No Record: An Android Password Manager
Pass, No Record: An Android Password Manager Alex Konradi, Samuel Yeom December 4, 2015 Abstract Pass, No Record is an Android password manager that allows users to securely retrieve passwords from a server
Parallelizing Cryptography. Gordon Werner Samantha Kenyon
Parallelizing Cryptography Gordon Werner Samantha Kenyon Outline Security requirements Cryptographic Primitives Block Cipher Parallelization of current Standards AES RSA Elliptic Curve Cryptographic Attacks
Sealing and Attestation in Intel Software Guard Extensions (SGX)
Sealing and Attestation in Intel Software Guard Extensions (SGX) Rebekah Leslie-Hurd Intel Corporation January 8 th, 2016 2016 Intel Corporation. All rights reserved. A Typical Computing Platform Application
FIPS Non-Proprietary Security Policy. Level 1 Validation Version 1.2
Oracle Solaris Kernel Cryptographic Framework with SPARC T4 and T5 Software Version: 1.0 and 1.1; Hardware Version: SPARC T4 (527-1437-01) and T5 (7043165) FIPS 140-2 Non-Proprietary Security Policy Level
Dyadic Enterprise. Unbound Key Control For Azure Marketplace. The Secure-As-Hardware Software With a Mathematical Proof
Dyadic Enterprise Unbound Key Control For Azure Marketplace The Secure-As-Hardware Software With a Mathematical Proof Unbound Key Control (UKC) is the first software-only key management and key protection
Lecture Nov. 21 st 2006 Dan Wendlandt ISP D ISP B ISP C ISP A. Bob. Alice. Denial-of-Service. Password Cracking. Traffic.
15-441 Lecture Nov. 21 st 2006 Dan Wendlandt Worms & Viruses Phishing End-host impersonation Denial-of-Service Route Hijacks Traffic modification Spyware Trojan Horse Password Cracking IP Spoofing DNS
The Future of Security is in Open Silicon Linux Security Summit 2018
The Future of Security is in Open Silicon Linux Security Summit 2018 Joel Wittenauer - Embedded Software Architect Rambus Cryptography Research August 28, 2018 Agenda About Rambus Cryptography Research
Flicker: An Execution Infrastructure for TCB Minimization
Flicker: An Execution Infrastructure for TCB Minimization Jonathan McCune, Bryan Parno, Adrian Perrig, Michael Reiter, and Hiroshi Isozaki (EuroSys 08) Presented by: Tianyuan Liu Oct 31, 2017 Outline Motivation
Cryptography. Dr. Michael Schneider Chapter 10: Pseudorandom Bit Generators and Stream Ciphers
Cryptography Dr. Michael Schneider michael.schneider@h-da.de Chapter 10: Pseudorandom Bit Generators and Stream Ciphers December 12, 2017 h_da WS2017/18 Dr. Michael Schneider 1 1 Random and Pseudorandom
Network Security. Chapter 4 Symmetric Encryption. Cornelius Diekmann With contributions by Benjamin Hof. Technische Universität München
Networ Security Chapter 4 Symmetric Encryption Cornelius Diemann With contributions by Benjamin Hof Lehrstuhl für Netzarchiteturen und Netzdienste Institut für Informati Version: October 29, 2015 IN2101,
CS 161 Computer Security
Popa & Wagner Spring 2016 CS 161 Computer Security Midterm 2 Print your name:, (last) (first) I am aware of the Berkeley Campus Code of Student Conduct and acknowledge that academic misconduct will be
Ref:
Cryptography & digital signature Dec. 2013 Ref: http://cis.poly.edu/~ross/ 2 Cryptography Overview Symmetric Key Cryptography Public Key Cryptography Message integrity and digital signatures References:
Public-Key Cryptography. Professor Yanmin Gong Week 3: Sep. 7
Public-Key Cryptography Professor Yanmin Gong Week 3: Sep. 7 Outline Key exchange and Diffie-Hellman protocol Mathematical backgrounds for modular arithmetic RSA Digital Signatures Key management Problem:
Winter 2011 Josh Benaloh Brian LaMacchia
Winter 2011 Josh Benaloh Brian LaMacchia Symmetric Cryptography January 20, 2011 Practical Aspects of Modern Cryptography 2 Agenda Symmetric key ciphers Stream ciphers Block ciphers Cryptographic hash
10/1/2015. Authentication. Outline. Authentication. Authentication Mechanisms. Authentication Mechanisms. Authentication Mechanisms
Authentication IT443 Network Security Administration Instructor: Bo Sheng Authentication Mechanisms Key Distribution Center and Certificate Authorities Session Key 1 2 Authentication Authentication is
Encryption. INST 346, Section 0201 April 3, 2018
Encryption INST 346, Section 0201 April 3, 2018 Goals for Today Symmetric Key Encryption Public Key Encryption Certificate Authorities Secure Sockets Layer Simple encryption scheme substitution cipher:
DataTraveler 5000 (DT5000) and DataTraveler 6000 (DT6000) Ultimate Security in a USB Flash Drive. Submitted by SPYRUS, Inc.
Submitted by SPYRUS, Inc. Contents DT5000 and DT6000 Technology Overview...2 Why DT5000 and DT6000 Encryption Is Different...3 Why DT5000 and DT6000 Encryption Is Different - Summary...4 XTS-AES Sector-Based
TPM v.s. Embedded Board. James Y
TPM v.s. Embedded Board James Y What Is A Trusted Platform Module? (TPM 1.2) TPM 1.2 on the Enano-8523 that: How Safe is your INFORMATION? Protects secrets from attackers Performs cryptographic functions
Cryptography and Network Security
Cryptography and Network Security Spring 2012 http://users.abo.fi/ipetre/crypto/ Lecture 14: Folklore, Course summary, Exam requirements Ion Petre Department of IT, Åbo Akademi University 1 Folklore on
Concrete cryptographic security in F*
Concrete cryptographic security in F* crypto hash (SHA3) INT-CMA encrypt then-mac Auth. encryption Secure RPC some some some adversary attack attack symmetric encryption (AES). IND-CMA, CCA2 secure channels
FIPS Security Policy UGS Teamcenter Cryptographic Module
FIPS 140-2 Security Policy UGS Teamcenter Cryptographic Module UGS Corp 5800 Granite Parkway, Suite 600 Plano, TX 75024 USA May 18, 2007 Version 1.3 containing OpenSSL library source code This product
Computer Security 3/23/18
s s encrypt a block of plaintext at a time and produce ciphertext Computer Security 08. Cryptography Part II Paul Krzyzanowski DES & AES are two popular block ciphers DES: 64 bit blocks AES: 128 bit blocks
Lecture Embedded System Security Introduction to Trusted Computing
1 Lecture Embedded System Security Introduction to Trusted Computing Prof. Dr.-Ing. Ahmad-Reza Sadeghi System Security Lab Technische Universität Darmstadt Summer Term 2017 Roadmap: Trusted Computing Motivation
Information Security: Principles and Practice Second Edition. Mark Stamp
Information Security: Principles and Practice Second Edition Mark Stamp August 10, 2009 Contents Preface Second Edition Preface About The Author Acknowledgments xvii xix xxiii xxv 1 Introduction 1 1.1
borzoi Manual Dragongate Technologies Ltd.
borzoi Manual Dragongate Technologies Ltd. September 21, 2003 Contents 1 Introduction 1 2 Preliminaries 2 2.1 Header Files............................ 2 2.2 Type Definitions......................... 2
Unit 8 Review. Secure your network! CS144, Stanford University
Unit 8 Review Secure your network! 1 Basic Problem Internet To first approximation, attackers control the network Can snoop, replay, suppress, send How do we defend against this? Communicate securely despite
Information Security CS526
Information Security CS 526 Topic 3 Cryptography: One-time Pad, Information Theoretic Security, and Stream CIphers 1 Announcements HW1 is out, due on Sept 11 Start early, late policy is 3 total late days
Block Cipher Modes of Operation
Block Cipher Modes of Operation Luke Anderson luke@lukeanderson.com.au 23 rd March 2018 University Of Sydney Overview 1. Crypto-Bulletin 2. Modes Of Operation 2.1 Evaluating Modes 2.2 Electronic Code Book
CS155. Cryptography Overview
CS155 Cryptography Overview Cryptography Is n n A tremendous tool The basis for many security mechanisms Is not n n n n The solution to all security problems Reliable unless implemented properly Reliable
BCA III Network security and Cryptography Examination-2016 Model Paper 1
Time: 3hrs BCA III Network security and Cryptography Examination-2016 Model Paper 1 M.M:50 The question paper contains 40 multiple choice questions with four choices and student will have to pick the correct
Intel SGX Virtualization
Sean Christopherson Intel Intel SGX Virtualization KVM Forum 2018 Traditional VM Landscape App s secrets accessible by any privileged entity, e.g. VMM and OS App App App or a malicious app that has exploited
3 Symmetric Key Cryptography 3.1 Block Ciphers Symmetric key strength analysis Electronic Code Book Mode (ECB) Cipher Block Chaining Mode (CBC) Some
3 Symmetric Key Cryptography 3.1 Block Ciphers Symmetric key strength analysis Electronic Code Book Mode (ECB) Cipher Block Chaining Mode (CBC) Some popular block ciphers Triple DES Advanced Encryption
Security with VA Smalltalk
24 th ESUG Conference Prague, Czech Republic August 23, 2016 Security with VA Smalltalk Seth Berman Vice President of Engineering Instantiations, Inc. Agenda Security Overview Architectural Goals OpenSSL
Demonstration Lecture: Cyber Security (MIT Department) Trusted cloud hardware and advanced cryptographic solutions. Andrei Costin
Demonstration Lecture: Cyber Security (MIT Department) Trusted cloud hardware and advanced cryptographic solutions Topic Prerequisites Security concepts Security-related concepts (e.g., entropy) Virtualization
Security: Cryptography
Security: Cryptography Computer Science and Engineering College of Engineering The Ohio State University Lecture 38 Some High-Level Goals Confidentiality Non-authorized users have limited access Integrity
ROTE: Rollback Protection for Trusted Execution
ROTE: Rollback Protection for Trusted Execution Sinisa Matetic, Mansoor Ahmed, Kari Kostiainen, Aritra Dhar, David Sommer, Arthur Gervais, Ari Juels, Srdjan Capkun Siniša Matetić ETH Zurich Institute of
Refresher: Applied Cryptography
Refresher: Applied Cryptography (emphasis on common tools for secure processors) Chris Fletcher Fall 2017, 598 CLF, UIUC Complementary reading Intel SGX Explained (ISE) Victor Costan, Srini Devadas https://eprint.iacr.org/2016/086.pdf
COMP4109 : Applied Cryptography
COMP4109 : Applied Cryptography Fall 2013 M. Jason Hinek Carleton University Applied Cryptography Day 2 information security cryptographic primitives unkeyed primitives NSA... one-way functions hash functions
Oracle Solaris Userland Cryptographic Framework Software Version 1.0 and 1.1
Oracle Solaris Userland Cryptographic Framework Software Version 1.0 and 1.1 FIPS 140-2 Non-Proprietary Security Policy Level 1 Validation Version 1.3 2014-01-08 Copyright 2014 Oracle Corporation Table
CSC 580 Cryptography and Computer Security
CSC 580 Cryptography and Computer Security Encryption Concepts, Classical Crypto, and Binary Operations January 30, 2018 Overview Today: Cryptography concepts and classical crypto Textbook sections 3.1,
Introduction to Symmetric Cryptography
Introduction to Symmetric Cryptography Tingting Chen Cal Poly Pomona 1 Some slides are from Dr. Cliff Zou. www.cs.ucf.edu/~czou/cis3360-12/ch08-cryptoconcepts.ppt Basic Cryptography Private Key Cryptography
SGX Security Background. Masab Ahmad Department of Electrical and Computer Engineering University of Connecticut
SGX Security Background Masab Ahmad masab.ahmad@uconn.edu Department of Electrical and Computer Engineering University of Connecticut 1 Security Background Outline Cryptographic Primitives Cryptographic
Public Key Algorithms
Public Key Algorithms CS 472 Spring 13 Lecture 6 Mohammad Almalag 2/19/2013 Public Key Algorithms - Introduction Public key algorithms are a motley crew, how? All hash algorithms do the same thing: Take
Data Security and Privacy. Topic 14: Authentication and Key Establishment
Data Security and Privacy Topic 14: Authentication and Key Establishment 1 Announcements Mid-term Exam Tuesday March 6, during class 2 Need for Key Establishment Encrypt K (M) C = Encrypt K (M) M = Decrypt
Distributed Systems. 25. Authentication Paul Krzyzanowski. Rutgers University. Fall 2018
Distributed Systems 25. Authentication Paul Krzyzanowski Rutgers University Fall 2018 2018 Paul Krzyzanowski 1 Authentication For a user (or process): Establish & verify identity Then decide whether to
Dashlane Security Whitepaper
Dashlane Security Whitepaper November 2017 Contents 1. General Security Principles... 2 a. Protection of User Data in Dashlane... 2 b. Local access to User Data... 2 c. Local Data Usage after deciphering...
Lecture Embedded System Security Trusted Platform Module
1 Lecture Embedded System Security Prof. Dr.-Ing. Ahmad-Reza Sadeghi System Security Lab Technische Universität Darmstadt (CASED) Germany Summer Term 2015 Roadmap: TPM Introduction to TPM TPM architecture
Introduction to Cryptography. Lecture 6
Introduction to Cryptography Lecture 6 Benny Pinkas page 1 1 Data Integrity, Message Authentication Risk: an active adversary might change messages exchanged between Alice and Bob M Alice M M M Bob Eve
NIST Cryptographic Toolkit
Cryptographic Toolkit Elaine Barker ebarker@nist.gov National InformationSystem Security Conference October 16, 2000 Toolkit Purpose The Cryptographic Toolkit will provide Federal agencies, and others
Crypto tidbits: misuse, side channels. Slides from Dave Levin 414-spring2016
Crypto tidbits: misuse, side channels Slides from Dave Levin 414-spring2016 A paper from 2013 that looked at how Android apps use crypto, as a function of 6 rules that reflect the bare minimum a secure