Understanding Semantic Security & the One-Time Pad π
Explore the fundamentals of semantic security, the one-time pad, and how they ensure perfect information-theoretic security in cryptography. Learn about ciphertext indistinguishability and key concepts in week 2b of Information Security.

Aleksander Essex
8.5K views β’ Sep 23, 2020

About this video
Information Security - Week 2b
In this video: the one-time pad, information theoretic security, semantic security, ciphertext indistinguishability, chosen-plaintext attack games, and more.
Undergraduate course on networking security and cryptography taught by Aleksander Essex, Ph.D., P.Eng., Associate professor of Software Engineering, Associate Chair (Graduate), Department of Electrical and Computer Engineering, Western University, Canada
Website:
https://essex.cc
Twitter:
https://twitter.com/aleksessex
Semantic Security reference text:
Introduction to Modern Cryptography
By Jonathan Katz, Yehuda Lindell
Second Edition, Published by Chapman and Hall/CRC, 2014
ISBN 9781466570269
https://www.routledge.com/Introduction-to-Modern-Cryptography/author/p/book/9781466570276
Course topics include:
Confidentiality, authenticity, integrity, ciphers, plaintext, ciphertext, encryption, decryption, keys, key generation function, uniform random, semantic security, bits of security, brute force, Kerckhoff's principle, semantic security, ciphertext indistinguishability, IND-CPA, INC-CCA, block ciphers, message padding, PKCS 7, modes of operation, initialization vector, pseudo-random permutation, counter mode, cipher block chaining, electronic codebook mode, counter mode, CBC, ECB, CTR, Advanced Encryption Standard, AES, hash functions, random oracles, pre-image resistance, collision resistance, SHA-1, SHA-256, SHA3, SHA-513, MD5, message authentication codes, MACs, Galois counter mode, GCM, AEC-GCM, public-key cryptography, Diffie-Hellman, public-key agreement, Elliptic curve Diffie-Hellman, DHE, ECDHE, digital signatures, ECDSA, RSA signatures, PKCS v1.5, digital certificates, X.509, public-key infrastructure, PKI, certificate pinning, certificate revocation, CRL, trust store, Transport Layer Security, TLS, TLS 1.2, TLS 1.3, HTTP over TLS, HTTPS Secure Shell, SSH, ciphersuite, client hello, server hello, VPNs, TOR, 802.11, wifi encryption, client authentication, passwords, password hashing, password lengths, single sign-on, federated identity
----
Music: Arp Bounce - Geographer
Support by RFM - NCM: https://bit.ly/2xGHypM
Slide template: Slidesgo including Flaticons with infographics & images by Freepik
In this video: the one-time pad, information theoretic security, semantic security, ciphertext indistinguishability, chosen-plaintext attack games, and more.
Undergraduate course on networking security and cryptography taught by Aleksander Essex, Ph.D., P.Eng., Associate professor of Software Engineering, Associate Chair (Graduate), Department of Electrical and Computer Engineering, Western University, Canada
Website:
https://essex.cc
Twitter:
https://twitter.com/aleksessex
Semantic Security reference text:
Introduction to Modern Cryptography
By Jonathan Katz, Yehuda Lindell
Second Edition, Published by Chapman and Hall/CRC, 2014
ISBN 9781466570269
https://www.routledge.com/Introduction-to-Modern-Cryptography/author/p/book/9781466570276
Course topics include:
Confidentiality, authenticity, integrity, ciphers, plaintext, ciphertext, encryption, decryption, keys, key generation function, uniform random, semantic security, bits of security, brute force, Kerckhoff's principle, semantic security, ciphertext indistinguishability, IND-CPA, INC-CCA, block ciphers, message padding, PKCS 7, modes of operation, initialization vector, pseudo-random permutation, counter mode, cipher block chaining, electronic codebook mode, counter mode, CBC, ECB, CTR, Advanced Encryption Standard, AES, hash functions, random oracles, pre-image resistance, collision resistance, SHA-1, SHA-256, SHA3, SHA-513, MD5, message authentication codes, MACs, Galois counter mode, GCM, AEC-GCM, public-key cryptography, Diffie-Hellman, public-key agreement, Elliptic curve Diffie-Hellman, DHE, ECDHE, digital signatures, ECDSA, RSA signatures, PKCS v1.5, digital certificates, X.509, public-key infrastructure, PKI, certificate pinning, certificate revocation, CRL, trust store, Transport Layer Security, TLS, TLS 1.2, TLS 1.3, HTTP over TLS, HTTPS Secure Shell, SSH, ciphersuite, client hello, server hello, VPNs, TOR, 802.11, wifi encryption, client authentication, passwords, password hashing, password lengths, single sign-on, federated identity
----
Music: Arp Bounce - Geographer
Support by RFM - NCM: https://bit.ly/2xGHypM
Slide template: Slidesgo including Flaticons with infographics & images by Freepik
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Video Information
Views
8.5K
Likes
232
Duration
14:30
Published
Sep 23, 2020
User Reviews
4.6
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