PPT-Cryptography Lecture 11 (Basic) CBC-MAC

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F k m 1 F k m 2 F k m l t CBCMAC vs CBCmode CBCMAC is deterministic no IV MACs do not need to be randomized to be secure Verification is done by recomputing

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Cryptography Lecture 11 (Basic) CBC-MAC: Transcript

F k m 1 F k m 2 F k m l t CBCMAC vs CBCmode CBCMAC is deterministic no IV MACs do not need to be randomized to be secure Verification is done by recomputing the result. By: Kamal DAOUDI. Senior Magistrate at the Court of Accounts of Morocco. Representative of the INTOSAI Capacity Building Committee Chair. PSC Steering Committee Meeting. Johannesburg, 30-31 May 2012. CS 465. Last Updated. : . Aug 25, 2015. Outline. Provide a brief historical background of cryptography. Introduce definitions and high-level description of four cryptographic primitives we will learn about this semester. of . Modern Cryptography. Josh Benaloh. Brian . LaMacchia. Winter 2011. Agenda. Integrity Checking (HMAC . redux. ). Protocols (Part 1 – Session-based protocols). Introduction. Kerberos. SSL/TLS. CS 161: Computer Security. Prof. . Raluca. Ada . Popa. Sept 13, 2016. Announcements. Project due Sept 20. Special guests. Alice . Bob. The attacker (Eve - “eavesdropper”, Malice). Sometimes Chris too. of. . Cryptography. A. . Practitioner. . Perspective. Instructor:. . Haibin Zhang. hbzhang@umbc.edu. Slides. . built. . on. . top. . of. . Dan. . Boneh. ’s. . slides. https://. crypto.stanford.edu/cs155/syllabus.html. . . Kimi Makwetu . Auditor-General of South Africa. Chair: INTOSAI Capacity Building Commitee . Task Force on INTOSAI Auditor . Professionalisation. . SAIs auditing in complex & challenging . contexts. nnrrr rrrrrrnrrrnrrrrrrrrrrrrrnrrrrrrCBC News - CBC News Saddam bin Laden link found Canadian reporterhttp//wwwcbcca/story/news/national/2003/04/26/saddamosama0304262 of 29/2/2006 329 PMrrr--n5r6788 The . art and science of concealing the messages to introduce secrecy in . information security . is recognized as cryptography. .. The word ‘cryptography’ was coined by combining two Greek words, ‘Krypto’ . 3 July 2019. Members. AFROSAI (Senegal). ARABOSAI (Tunisia). ASOSAI (China, Japan). CAROSAI (not present). EUROSAI (Poland). OLACEFS (Brazil). PASAI (New Zealand, Fiji). IDI . INTOSAI-Donor (Saudi Arabia, USA). m. t. = Mac. k. (m). k. m. , t. Vrfy. k. (m’, t’) = 1?. m. ’, t’. m. , t. m. k. k. k. m. , t. m. , t. Vrfy. k. (m, t)=1?. k. m. , t. m. , t. c. ookie, t. cookie. cookie. c. ookie, t. …price=10…. . Patra. Quick Recall and Today’s Roadmap. >> . . CPA Security. >. > . PRF-based . construction . >> Proof of Security. >> Extension to CPA-MULT-security. >> Modes of Operations (very efficient construction used in practice). Fitting you CBC project idea into an ENI CBC project framework. Black Sea Basin . programme. , Project preparation workshop. [Place], [Date]. What do you want to improve through your CBC . project?. . Patra. Quick Recall and Today’s Roadmap. >> . CCA Security, more stronger than CPA security . >. > . Break of CBC Mode CPA secure scheme under CCA- Padding Oracle Attack. >> MAC. 7-9 September . 2016. The CBC’s future strategic direction. Identify . capacity development challenges and opportunities . and facilitate . access to solutions . Strengthen . structured INTOSAI professional development .

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