Creating and Managing Users Server 2003 User Accounts Domain user accounts Local user accounts Built-in user accounts Introduction to User Accounts A user account is an Active Directory object Used for user authentication
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Creating and Managing Users. Server 2003 User Accounts. Domain user accounts Local user accounts Built-in user accounts. Introduction to User Accounts. A user account is an Active Directory object Used for user authentication
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Internetwork Technologies. Internetwork Security. Authentication Is that you? Nonrepudiation No denying it Access control Hands off! Reputation Name = MUD. What are you trying to secure?. Confidentiality Avoid snooping Encryption? Integrity Deletes, changes Backups Availability
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Secure Communication with an Insecure Internet Infrastructure. Internet Design Decisions and Security. Origin as a small and cooperative network (=> largely trusted infrastructure) Global Addressing (=> every sociopath is your next-door neighbor*)
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Constructions Secure against Receiver Selective Opening and Chosen Ciphertext Attacks. Dingding Jia , Xianhui Lu, Bao Li firstname.lastname@example.org CT-RSA 2017 02-17. Outline. Background Motivation Our contribution
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CSC 482/582: Computer Security. Public Key Cryptography. Topics. Number Theory Review Public Key Cryptography One-Way Trapdoor Functions Diffie -Hellman Key Exchange RSA Cipher Modern Steganography. Number Theory Review. Prime Numbers Fundamental Theorem of Arithmetic
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Wiretapping and Encryption. More Week 5 cont. Early Forms of Wiretapping. Party Lines Human Operators. Wiretapping Today. Federal and state law enforcement Businesses Private Detectives Political Candidates . Cellular Phones. Can be tapped with over-the-counter devices.
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IP Security. Nick Feamster CS 6262 Spring 2009. IP Security. have a range of application specific security mechanisms eg. S/MIME, PGP, Kerberos, SSL/HTTPS however there are security concerns that cut across protocol layers would like security implemented by the network for all applications.
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TECS Week. 2005. Key Management Protocols and Compositionality . John Mitchell Stanford. Key Management Options. Out of band Can set up some keys this way (Kerberos) Public-key infrastructure (PKI) Leverage small # of public signing keys Protocols for session keys
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SIPPING IETF51 3GPP Security and Authentication. Peter Howard 3GPP SA3 (Security) delegate email@example.com. Home. S -CSCF. I -CSCF. Visited. GGSN. SGSN. RAN. 3GPP IP Multimedia Subsystem (Release 5). Cx interface based on Diameter
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Authenticated Key Exchange. Definitions MAP matching conversations oracles (I)KA AKEP2 AKEP2 Security Session Keys Perfect Forward Secrecy Adversary Attacks. Presented By: Ashley Bruno & Blayne White. Key Establishment Protocols.
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All About Encryption. Encryption Overview. Two main types we are concerned with Data in motion, over the network Data at rest, datafiles, backups, redo, exports We will be concentrating on data at rest Question & Discussion: What is the goal behind encrypting data? Why do we do it?
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No-Key Cryptography. Nathan Marks. Based on Massey-Omura US Patent # 4,567,600. Overview. Introduction and Overview Analogy of No-Key Cryptography Basic over-view of No-Key Cryptography Original Massey-Omura Algorithm Variations of Massey-Omura Conclusion Questions.
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Virtual Private Networks. What is a Virtual Private Network (VPN)? How do VPNs work? How is security achieved? How secure is a VPN? What sort of VPN is right for your application?. VPN: What is it.
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Improved Authenticated Multiple-Key Agreement Protocol. Source: Computer and Mathematics with Applications 46 (2003), pp. 207-211. Author: Her-Tyan Yen, Hung-Min Sun and Tzonelih Hwang. Introduction. Multiple-Key Agreement protocol The cost of hash function.
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Some Simple Cryptograms. Cipher: YHPARGOTPYRC OT EMOCLEW Plain: -----------------------. Cipher: EHT YPS WSI RAE GNI LBA CEU TAO Plain: --- --- --- --- --- --- --- ---. Cipher: ICCRAANCTKBEEDLTIHEIVSECYOODUE Plain: ------------------------------.
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