Cryptographic methods:

Nov 26, 2012

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Why use cryptography?. Can offer genuinely secure solutions to important security problemsSome governments forbid itConfidentialityCan I be sure no-one else can see my data? (e.g. sniffing)IntegrityHas my data been modified?AuthenticationAre you who you claim to be?Access controls (Authorisa

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Cryptographic methods:

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CHAPTER 5 : P ublic - key cryptography

CHAPTER 5 : P ublic - key cryptography. Rapidly increasing needs for flexible and secure transmission of information require to use new cryptographic methods.

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Hardware Cryptographic Coprocessor

Hardware Cryptographic Coprocessor. Peter R. Wihl Security in Software. The Problem. Need for secure computing in an environment where computing is distributed, insecure, and even hostile More and more, we use computers that belong to others, but we need to know our data is safe. The Goal.

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Cryptographic Hash Functions

CS 361S. Cryptographic Hash Functions. Vitaly Shmatikov. Reading Assignment. Read Kaufman 5.1-2 and 5.6-7. Hash Functions: Main Idea. Hash function H is a lossy compression function Collision: H(x)=H(x’) for some inputs x≠x’ H(x) should look “random”

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Information Security & Cryptographic Principles

Information Security & Cryptographic Principles. Infosec and Cryptography Subjects / Topics : 1. Introduction to computer cryptography 2. Single key cryptographic algorithms 3. Public key cryptographic algorithms 4. Crypto Applications 5. Business Continuity.

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Cryptographic Protocol Analysis

Cryptographic Protocol Analysis. Jonathan Millen SRI International. Cryptographic Protocols in Use. Cryptographic protocol: an exchange of messages over an insecure communication medium, using cryptographic transformations to ensure authentication and secrecy of data and keying material.

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Cryptographic Security

Cryptographic Security. Outline. Information security Encryption and keys Symmetric encryption DES Public-key cryptosystems RSA Digital signatures Digital certificates. Information Security. Keep data secret from unauthorized parties Authenticate identity of users

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Multimedia Data Security and Cryptographic Algorithms

Multimedia Data Security and Cryptographic Algorithms. Dr Mike Spann http://www.eee.bham.ac.uk/spannm M.Spann@bham.ac.uk Electronic, Electrical and Computer Engineering. Contents. We look briefly at the importance of secure cryptography and at some simple cryptographic approaches.

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NIST Cryptographic Standards Process Review

NIST Cryptographic Standards Process Review. Tim Polk NIST November 7, 2013. Outline. Brief Historical Perspective NIST’s Goals and Objectives in Cryptographic S tandards D evelopment Current E vents Future Plans. Historical Perspective on Cryptographic Standards.

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Lecture 3: Cryptographic Tools

Lecture 3: Cryptographic Tools. modified from slides of Lawrie Brown. Cryptographic Tools. Cryptographic algorithms important element in security services review various types of elements symmetric encryption public-key (asymmetric) encryption digital signatures and key management

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Graduated CC Protection Profiles for Cryptographic Modules

Graduated CC Protection Profiles for Cryptographic Modules. Bundesamt für Sicherheit in der Informationstechnik (BSI) (Federal Office for Information Security). 8. ICCC, Rome, 25. - 27. September 2007. Gereon Killian Head of Certification Body. Overview of presentation. Why these PPs?

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CAP Cryptographic Analysis Program

CAP Cryptographic Analysis Program. Multiliteral Cipher Help Presentation. Press Enter or click on your mouse button to continue. R. R. U. N. J. G. E. Y. A. V. A. G. ciphertext. L. B. W. U. C. W. H. J. U. K. B. T. plaintext. N. S. T. U. S. I. H. O. I. T. F.

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CAP Cryptographic Analysis Program

CAP Cryptographic Analysis Program. General Help Presentation. Press Enter or click on your mouse button to continue. What is CAP?. CAP is a general purpose tool for the study of classical (and some contemporary) ciphers CAP is really three related programs in one

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Overview of Cryptographic Techniques . Hector M Lugo-Cordero CIS 4361 Secure Operating System Administration. 1. Resources Used. Lecture slides from Dr Ratan Guha CNT 6519 Wireless Security Forensics Cryptography and Network Security, Fourth Edition, by William Stallings

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The Cryptographic Token Key Initialization Protocol (CT-KIP)

The Cryptographic Token Key Initialization Protocol (CT-KIP). OTPS Workshop February 2006. CT-KIP Primer. A client-server protocol for initialization (and configuration) of cryptographic tokens with shared keys

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The Cryptographic Hardness of Decoding Hawking Radiation

The Cryptographic Hardness of Decoding Hawking Radiation. Scott Aaronson (MIT). Black Holes and Computational Complexity??. QAM. AM. QSZK. SZK. BQP. BPP. YES! Amazing connection made last year by Harlow & Hayden But first, let’s review 40 years of black hole history.

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Quasigroup transformations and their cryptographic potentials

Quasigroup transformations and their cryptographic potentials. Ass. Prof. Danilo Gligoroski Institute of Informatics, Faculty of Natural Sciences, Skopje, Republic of Macedonia. Overview. Examples and definitions of latin squares and quasigroups Latin squares in mathematics

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Testing cryptographic protocol implementations

Testing cryptographic protocol implementations. Verifying crypto protocols. Lots of formal methods Good representative: Blanchet’s ProVerif Mainly for its good spec language Almost always gives an answer Not much on verifying implementations fs2pv, Csur

348 views • 21 slides

Cryptographic Voting Protocols: A Systems Perspective

0. 0. 1. 1. 0. 0. 1. 0. 1. 1. 0. 0. 0. 0. 0. 1. 0. 0. 1. 0. 1. 1. 1. 1. 0. 0. 0. 1. 0. 1. Chris Karlof Naveen Sastry David Wagner UC-Berkeley. Cryptographic Voting Protocols: A Systems Perspective.

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Cryptographic primitives

Cryptographic primitives. Outline. Preliminary Oblivious Transfer (OT) Random share based methods Homomorphic Encryption ElGamal. Assumptions. Semi-honest party assumption Parties honestly follow the security protocol Parties might be curious about the transferred data

494 views • 22 slides

FPGA & Crypto: Is Marriage in the Cards?

Kris Gaj George Mason University. FPGA & Crypto: Is Marriage in the Cards?. fragments of the presentation at the CryptArchi workshop, France, June 2004. Possible Applications of Cryptographic Hardware. Why are cryptographic chips needed?. hardware accelerators for web servers

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Cryptographic methods for privacy aware computing: applications

Cryptographic methods for privacy aware computing: applications. Outline. Review: three basic methods Two applications Distributed decision tree with horizontally partitioned data Distributed k-means with vertically partitioned data. Three basic methods. 1-out-K Oblivious Transfer

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Privacy Preserving Data Mining Lecture 3 Non-Cryptographic Approaches for Preserving Privacy

Privacy Preserving Data Mining Lecture 3 Non-Cryptographic Approaches for Preserving Privacy (Based on Slides of Kobbi Nissim). Benny Pinkas HP Labs, Israel. d. Why not use cryptographic methods?. Many users contribute data. Cannot require them to participate in a cryptographic protocol.

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Cryptographic methods:

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Presentation Transcript

CHAPTER 5 : P ublic - key cryptography

Hardware Cryptographic Coprocessor

Cryptographic Hash Functions

Information Security &amp; Cryptographic Principles

Cryptographic Protocol Analysis

Cryptographic Security

Multimedia Data Security and Cryptographic Algorithms

NIST Cryptographic Standards Process Review

Lecture 3: Cryptographic Tools

Graduated CC Protection Profiles for Cryptographic Modules

CAP Cryptographic Analysis Program

CAP Cryptographic Analysis Program

Overview of Cryptographic Techniques

The Cryptographic Token Key Initialization Protocol (CT-KIP)

The Cryptographic Hardness of Decoding Hawking Radiation

Quasigroup transformations and their cryptographic potentials

Testing cryptographic protocol implementations

Cryptographic Voting Protocols: A Systems Perspective

Cryptographic primitives

FPGA &amp; Crypto: Is Marriage in the Cards?

Cryptographic methods for privacy aware computing: applications

Privacy Preserving Data Mining Lecture 3 Non-Cryptographic Approaches for Preserving Privacy

Information Security & Cryptographic Principles

FPGA & Crypto: Is Marriage in the Cards?