Showing only posts tagged cryptography. Show all posts.

AWS-LC FIPS 3.0: First cryptographic library to include ML-KEM in FIPS 140-3 validation

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We’re excited to announce that AWS-LC FIPS 3.0 has been added to the National Institute of Standards and Technology (NIST) Cryptographic Module Validation Program (CMVP) modules in process list. This latest validation of AWS-LC introduces support for Module Lattice-Based Key Encapsulation Mechanisms (ML-KEM), the new FIPS standardized …

AWS post-quantum cryptography migration plan

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Amazon Web Services (AWS) is migrating to post-quantum cryptography (PQC). Like other security and compliance features in AWS, we will deliver PQC as part of our shared responsibility model. This means that some PQC features will be transparently enabled for all customers while others will be options that customers …

Watermark for LLM-Generated Text

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Researchers at Google have developed a watermark for LLM-generated text. The basics are pretty obvious: the LLM chooses between tokens partly based on a cryptographic key, and someone with knowledge of the key can detect those choices. What makes this hard is (1) how much text is required for …

Customer compliance and security during the post-quantum cryptographic migration

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Amazon Web Services (AWS) prioritizes the security, privacy, and performance of its services. AWS is responsible for the security of the cloud and the services it offers, and customers own the security of the hosts, applications, and services they deploy in the cloud. AWS has also been introducing quantum-resistant …

Meta pays the price for storing hundreds of millions of passwords in plaintext

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Enlarge (credit: Getty Images) Officials in Ireland have fined Meta $101 million for storing hundreds of millions of user passwords in plaintext and making them broadly available to company employees. Meta disclosed the lapse in early 2019. The company said that apps for connecting to various Meta-owned social networks …

How to migrate 3DES keys from a FIPS to a non-FIPS AWS CloudHSM cluster

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On August 20, 2024, we announced the general availability of the new AWS CloudHSM hardware security module (HSM) instance type hsm2m.medium, referred to in this post as hsm2. This new type comes with additional features compared to the previous CloudHSM instance type hsm1.medium (hsm1). The new features …

Microsoft Is Adding New Cryptography Algorithms

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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 …

As quantum computing threats loom, Microsoft updates its core crypto library

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Enlarge (credit: Getty Images) Microsoft has updated a key cryptographic library with two new encryption algorithms designed to withstand attacks from quantum computers. The updates were made last week to SymCrypt, a core cryptographic code library for handing cryptographic functions in Windows and Linux. The library, started in 2006 …

YubiKeys are vulnerable to cloning attacks thanks to newly discovered side channel

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Enlarge (credit: Yubico) The YubiKey 5, the most widely used hardware token for two-factor authentication based on the FIDO standard, contains a cryptographic flaw that makes the finger-size device vulnerable to cloning when an attacker gains temporary physical access to it, researchers said Tuesday. The cryptographic flaw, known as …

NIST Releases First Post-Quantum Encryption Algorithms

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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 …

Compromising the Secure Boot Process

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This isn’t good : On Thursday, researchers from security firm Binarly revealed that Secure Boot is completely compromised on more than 200 device models sold by Acer, Dell, Gigabyte, Intel, and Supermicro. The cause: a cryptographic key underpinning Secure Boot on those models that was compromised in 2022. In …

Secure Boot is completely broken on 200+ models from 5 big device makers

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Enlarge (credit: sasha85ru | Getty Imates) In 2012, an industry-wide coalition of hardware and software makers adopted Secure Boot to protect against a long-looming security threat. The threat was the specter of malware that could infect the BIOS, the firmware that loaded the operating system each time a computer booted …

Model Extraction from Neural Networks

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A new paper, “Polynomial Time Cryptanalytic Extraction of Neural Network Models,” by Adi Shamir and others, uses ideas from differential cryptanalysis to extract the weights inside a neural network using specific queries and their results. This is much more theoretical than practical, but it’s a really interesting result …

Lattice-Based Cryptosystems and Quantum Cryptanalysis

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Quantum computers are probably coming, though we don’t know when—and when they arrive, they will, most likely, be able to break our standard public-key cryptography algorithms. In anticipation of this possibility, cryptographers have been working on quantum-resistant public-key algorithms. The National Institute for Standards and Technology (NIST …

In Memoriam: Ross Anderson, 1956–2024

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Last week, I posted a short memorial of Ross Anderson. The Communications of the ACM asked me to expand it. Here’s the longer version. EDITED TO ADD (4/11): Two weeks before he passed away, Ross gave an 80-minute interview where he told his life story. [...]

Ross Anderson

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Ross Anderson unexpectedly passed away Thursday night in, I believe, his home in Cambridge. I can’t remember when I first met Ross. Of course it was before 2008, when we created the Security and Human Behavior workshop. It was well before 2001, when we created the Workshop on …

Improving the Cryptanalysis of Lattice-Based Public-Key Algorithms

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The winner of the Best Paper Award at Crypto this year was a significant improvement to lattice-based cryptanalysis. This is important, because a bunch of NIST’s post-quantum options base their security on lattice problems. I worry about standardizing on post-quantum algorithms too quickly. We are still learning a …

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