PPT-Synchronous Byzantine Fault Tolerance

Kartik Nayak 1 2 Todays class Two protocols in the synchronous setting Agenda An O1 round Byzantine BroadcastAgreement protocol f lt n2 faults Concerns with synchrony and making protocols practical in this setting. aka Eastern Roman Empire. Byzantine Empire. ". Byzantine" derives from Byzantium, an ancient Greek colony founded by a man named . Byzas. . . Located . on the European side of the Bosporus (the strait linking the Black Sea to the Mediterranean), . 610-1070. Strains on the Empire. Avars. Slavs. Persians. And after 632 the Muslims. Heraclius. Came to power amid military disaster. Avars. , Slavs, and Persians were all attacking the empire at once. Early Byzantine 500-726 (Iconoclastic Controversy). Iconoclastic Controversy 726-843. Middle/High Byzantine 843-1200 (Medieval Crusades). Late Byzantine 1200-1453 (Ottoman Conquest). Main Ideas of Byzantine Art. Eleanor Birrell. November 23, 2010. x. y. SIG(x, . i. ). SIG(y, . i. ). SIG(. x,i. ). SK. A. Authenticated Messages. Digital Signatures. Public-Key. Inefficient . Message Authentication Codes (MAC). Secret-Key. Welcome. Facilitator name. Position . at . university. Contact info. learning outcomes. By . the end of this module, . you should be . able to. :. Evaluate a variety of educational technologies on the basis of hands-on . World History: Libertyville HS. Where Was the ERE?. Capitol, Constantinople, located at narrowest point between Europe, Asia (Hellespont). Major trade routes to North / South. North, to . Rus. / Vikings. asynchornous. systems. Hammurabi Mendes, Maurice . Herlihy. Presented By: Gil . Einziger. 1. Model And assumptions:. A. synchronous. . message passing. . t – processes that may crush or fail, and even be byzantine.. Yee . Jiun. Song. Cornell University. CS5410 Fall 2008. . Fault Tolerant Systems. By now, probably obvious that systems reliability/availability is a key concern. Downtime is expensive. Replication is a general technique for providing fault tolerance. Religion. Constantine became Christian. Ended persecution of Christians. Made Christianity the official religion of Rome. Capital City. Moved capital from Rome to Byzantium. Rebuilt the city stronger. Storage Using . Random Linear Network Coding. Pouya . Ostovari and . Jie. Wu. Computer & Information Sciences. Temple University. Center for Networked . Computing. http://www.cnc.temple.edu. Agenda. Roman Imperial . in its form of government;. Orthodox Christian . in religion. Greek . in its culture and language. From Eastern Roman to Byzantine Empire. Constantinople. – imperial capital; center of a world empire; a Christian city under the protection of God; . CSC 8320 : AOS . Class Presentation. Shiraj Pokharel. Outline. What is Fault Tolerance?. Availability & Reliability. Failure Models. Process Resilience and Replication.. Case Study : Multicasting – Distributed Banking. Capital: Byzantium. On the Bosporus. Commercial, strategic value of location. Constantine names capital after himself (Constantinople), moves capital there 330 CE. 1453 falls to Turks, renamed Istanbul. Introduction to Fault-Tolerance Amos Wang Credit from: Dr . Axel Krings , Dr. Behrooz Parhami , Prof. Jalal Y. Kawash , Kewal K.Saluja , and Paul Krzyzanowski Introduction Fault tolerance is related to