Category: cryptography

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Signal’s Post-Quantum Cryptographic Implementation

Posted on By infossl
cryptography, encryption, quantum computing, Security technology, signal, Uncategorized

Signal has just rolled out its quantum-safe cryptographic implementation. Ars Technica has a really good article with details: Ultimately, the architects settled on a creative solution. Rather than bolt KEM onto the existing double ratchet, they allowed it to remain more or less the same as it had been. Then they used the new quantum-safe … Read More “Signal’s Post-Quantum Cryptographic Implementation” »

Part Four of The Kryptos Sculpture

Posted on By infossl
cia, cryptography, Security technology, Uncategorized

Two people found the solution. They used the power of research, not cryptanalysis, finding clues amongst the Sanborn papers at the Smithsonian’s Archives of American Art. This comes as an awkward time, as Sanborn is auctioning off the solution. There were legal threats—I don’t understand their basis—and the solvers are not publishing their solution. Powered … Read More “Part Four of The Kryptos Sculpture” »

NCSC Guidance on “Advanced Cryptography”

Posted on By infossl
cryptography, homomorphic encryption, reports, Security technology, Uncategorized

The UK’s National Cyber Security Centre just released its white paper on “Advanced Cryptography,” which it defines as “cryptographic techniques for processing encrypted data, providing enhanced functionality over and above that provided by traditional cryptography.” It includes things like homomorphic encryption, attribute-based encryption, zero-knowledge proofs, and secure multiparty computation. It’s full of good advice. I … Read More “NCSC Guidance on “Advanced Cryptography”” »

AIs as Trusted Third Parties

Posted on By infossl
academic papers, AI, cryptography, machine learning, Security technology, trust, Uncategorized

This is a truly fascinating paper: “Trusted Machine Learning Models Unlock Private Inference for Problems Currently Infeasible with Cryptography.” The basic idea is that AIs can act as trusted third parties: Abstract: We often interact with untrusted parties. Prioritization of privacy can limit the effectiveness of these interactions, as achieving certain goals necessitates sharing private … Read More “AIs as Trusted Third Parties” »

Implementing Cryptography in AI Systems

Posted on By infossl
academic papers, AI, cryptanalysis, cryptography, Security technology, Uncategorized

Interesting research: “How to Securely Implement Cryptography in Deep Neural Networks.” Abstract: The wide adoption of deep neural networks (DNNs) raises the question of how can we equip them with a desired cryptographic functionality (e.g, to decrypt an encrypted input, to verify that this input is authorized, or to hide a secure watermark in the … Read More “Implementing Cryptography in AI Systems” »

Microsoft Is Adding New Cryptography Algorithms

Posted on By infossl
cryptography, microsoft, quantum computing, Security technology, Uncategorized

Microsoft is updating SymCrypt, its core cryptographic library, with new quantum-secure algorithms. Microsoft’s details are here. From a news article: The first new algorithm Microsoft added to SymCrypt is called ML-KEM. Previously known as CRYSTALS-Kyber, ML-KEM is one of three post-quantum standards formalized last month by the National Institute of Standards and Technology (NIST). The … Read More “Microsoft Is Adding New Cryptography Algorithms” »

NIST Releases First Post-Quantum Encryption Algorithms

Posted on By infossl
cryptography, encryption, national security policy, nist, quantum computing, security standards, Security technology, Uncategorized

From the Federal Register: After three rounds of evaluation and analysis, NIST selected four algorithms it will standardize as a result of the PQC Standardization Process. The public-key encapsulation mechanism selected was CRYSTALS-KYBER, along with three digital signature schemes: CRYSTALS-Dilithium, FALCON, and SPHINCS+. These algorithms are part of three NIST standards that have been finalized: … Read More “NIST Releases First Post-Quantum Encryption Algorithms” »