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Authenticating Data with Message Authentication Codes

Information Security - Week 5 In this video: Effects of ciphertext modification, the adaptive chosen ciphertext attack game (CCA2), block cipher padding, PKCS #7, padding oracle attacks, message authentication codes (MACs), hash based message authentication codes (HMAC), MAC configurations, encrypt-then-mac, mac-then-encrypt, authenticated encryption, AES-GCM 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:   / aleksessex   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