After 48 Years, It’s A Long Goodbye to the Diffie-Hellman Method
Release Date: 10/16/2024
World-leaders in Cryptography: Matthew Green
ASecuritySite Podcast
Matthew is a cryptographer and academic at Johns Hopkins University and has designed and analyzed cryptographic systems used in wireless networks, payment systems and digital content protection platforms. A key focus of his work is in the promotion of user privacy. He has an extensive following on X/Twitter (140K followers) and his blog covers important areas of cryptography: His research has been cited over 15,000 times and includes work on Zerocash, Zerocoin and Identity Based Encryption (IBE), and more recently on privacy-aware signatures:
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World Leaders in Cryptography: Alfred Menezes
ASecuritySite Podcast
Alfred Menezes is a Professor at the University of Waterloo in Ontario. In 2001, he won the Hall Medal from the Institute of Combinatorics and its Applications. Alfred is the lead author of the Handbook of Applied Cryptography, and which has been cited over 25,000 times. He has published many high impact papers, especially in areas of public key encryption and elliptic curve cryptography, and was the co-inventor of the ECDSA signature method. His website for online courses is https://cryptography101.ca. The "Cryptography101: Building Blocks" and "Cryptography 101:...
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World-leaders in Cryptography: Bruce Schneier (Nov 2024)
ASecuritySite Podcast
This seminar series runs for students on the Network Security and Cryptography module, but invites guests to participate. Bruce has created a wide range of cryptographic methods including Skein (hash function), Helix (stream cipher), Fortuna (random number generator), and Blowfish/Twofish/Threefish (block ciphers). Bruce has published 14 books, including best-sellers such as Data and Goliath: The Hidden Battles to Collect Your Data and Control Your World. He has also published hundreds of articles, essays, and academic papers. Currently, Bruce is a fellow at the Berkman Center for Internet and...
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World-leaders in Cryptography: Brent Waters
ASecuritySite Podcast
Brent Waters is a Professor at the University of Texas at Austin and the Director of the Cryptography Lab at NTT Research. He graduated from the UCL in 2000, then completed a PhD at Princeton University in 2004. After this, he moved on to Stanford as a postdoc. Overall, Brent was the first to propose Attribute-based Encryption (ABE) and also the first to outline functional encryption. He was also awarded the Sloan Research Fellowship in 2010, and, in 2015, he was awarded the Grace Murray Hopper Award for his work on ABE and functional encryption. Brent’s research has been cited...
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Get Used to Three Boring Acronyms: ML-KEM, ML-DSA and SLH-DSA
ASecuritySite Podcast
Well, as if cybersecurity doesn’t have enough acronyms. There’s RIP, OSPF, TCP, IP, SSH, AES, and so many others. Now, there are three really important ones to remember: ML-KEM (Module Lattice-Based Key Encapsulation Mechanism), ML-DSA (Module Lattice-Based Signature Standard) and SLH-DSA (Stateless Hash-based Digital Signature Standard). ML-KEM is defined in the FIPS 203 standard, ML-DSA as FIPS 204, and for SLH-DSA, we have FIPS 205.
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So What Is A PreHash, And What Has it to do With Post Quantum Signatures?
ASecuritySite Podcast
The cybersecurity world is changing, and where the signature methods of RSA, ECDSA and EdDSA are likely to be replaced by FIPS 204 (aka ML-DSA Module-Lattice-Based Digital Signature Standard— Dilithium) and FIPS 205 (aka SLH-DSA (Stateless Hash-based Digital Signature Standard — SPHINCS+) https://medium.com/@billatnapier/so-what-is-a-prehash-and-what-has-it-to-do-with-post-quantum-signatures-bf7812cfa203
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CMAC or HMAC?
ASecuritySite Podcast
In cybersecurity, there are so many acronyms, and to be an expert, you really need to dig underneath the methods and understand how they work. One weak area of the industry is in the usage of MACs (Message Authentication Codes). With the public-key signing, we use a public key and a private key, where the private key will digitally sign a hash of the message, and where the public key is verified the signature. With a MAC, we use a shared symmetric key, and where Bob and Alice will share the same secret key (Figure 1).
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The Brainpool Curves
ASecuritySite Podcast
Article:
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Our Current Hardware Architectures Are Often Not Fit For a World of ML and Homomorphic Encryption
ASecuritySite Podcast
Article: https://medium.com/asecuritysite-when-bob-met-alice/our-current-hardware-architectures-are-often-not-fit-for-a-world-of-ml-and-homomorphic-encryption-1df5a4a45a4d
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NIST Looks To The Future of Cryptography: SHA-1, 3DES and SHA-224 on Naughty Step
ASecuritySite Podcast
Article: https://billatnapier.medium.com/nist-looks-to-the-future-of-cryptography-sha-1-3des-and-sha-224-on-naughty-step-7295d03fdc54
info_outlineThis week, in my lecture, I will outline one of the most amazing methods ever created in computer science: the Diffie-Hellman method. It was first outlined by Whitfield Diffie and Marty Hellman in 1976 in a paper that built the foundation of our modern world of cybersecurity.