31 results for “cryptography”

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“cryptography”

securityweek.comarticle🛡️ Security

Passkeys Are Better Than Passwords. But They Are Not Enough.

Opinion piece arguing that passkeys, built on public-key cryptography, resist phishing, credential stuffing and password theft but do not settle identity risk. Attackers can go around them through account enrollment before a passkey is bound, weaker recovery paths (SMS, email link, help desk), device changes and authenticated session hijacking. It proposes layering identity threat detection with risk-based, continuous evaluation of trust.

passkeysMFA

adversary-in-the-middleMFA fatigueSIM swapping+3

Identity & Access· Published and added 30 Oct 2026

arxiv.orgpaper🧠 AI

Efficient Scalable Oversight via Rewinding

Rewindable interactive proofs (RIPs) are a new model of relativizing interactive proofs for scalable oversight, in which a weak verifier can rewind an AI prover to an earlier saved state. The paper builds an RIP for computations robust to changes in a small fraction of oracle answers. The honest prover runs in linear time, the verifier runs in nearly linear time in the input length after one-time preprocessing, and no cryptography is used. A preliminary MNIST experiment shows an RIP can be faster than a deployed proof system.

rewindable interactive proofsdebaterelativizing interactive proofs

arXivMNIST

research, ai-safety· Added 31 Oct 2026, published 29 Oct 2026

x.compaper🛡️ Security

Cryptography and Security Papers (@FSFG) on X

PrivacyEvalClaw is a tool-augmented deliberative agent that audits privacy leakage in LLM jailbreak responses. The paper is by Krishna Kanth Nakka and co-authors, and it was accepted to AACL-IJCNLP 2026 (arXiv 2610.36711, cs.CR). The tweet gives only the title, authors and venue, so the method and results are not described.

LLM

PrivacyEvalClaw

AI Security· Added 30 Oct 2026, published 29 Oct 2026

x.compaper🧠 AI

Cryptography and Security Papers (@FSFG) on X

PrivacyEvalClaw is a tool-augmented deliberative agent for auditing privacy leakage in LLM responses produced under jailbreak prompts. By Krishna Kanth Nakka and five co-authors, the paper is on arXiv (cs.CR) and accepted to AACL-IJCNLP 2026. The fetched post gives only the title, authors and venue, so method details and results are not available here.

LLM

PrivacyEvalClawKrishna Kanth NakkaAACL-IJCNLP 2026+1

evals, agents, ai-safety· Added 30 Oct 2026, published 29 Oct 2026

x.compaper🛡️ Security

Cryptography and Security Papers (@FSFG) on X

Log-To-Leak is an arXiv paper (cs.CR, cs.AI) by Yuepeng Hu, Chongyu Fan, Sirat Samyoun and Jian Du on prompt injection attacks against tool-using LLM agents through the Model Context Protocol. The title points to a logging-based data leakage channel. The fetched page holds only the title, authors and arXiv link, with no abstract, so the method and results are not visible here.

Model Context ProtocolLLM

Log-To-Leakprompt injection

AI Security· Added 29 Oct 2026, published 28 Oct 2026

blog.cloudflare.comarticle🛡️ Security

Bringing post-quantum cryptography to geographically fenced key management

Cloudflare's post-quantum GeoKey Manager, in closed beta for the Data Localization Suite, wraps customer private keys so only edge servers in an allowed region can unwrap them. It uses regional 256-bit root keys, derived application-specific HPKE key pairs (RFC 9180) with hybrid ML-KEM-768 and X25519, TPM-backed server authorization, kernel keyring storage, fail-closed checks, and soft and hard rotation. General availability is planned for Q1 2027.

CloudflareHPKEVault+2

GeoKey ManagerData Localization SuiteML-KEM+4

GRC, Cloud & Infra· Added 29 Oct 2026, published 23 Oct 2026

eprint.iacr.orgpaper🛡️ Security

Energy Consumption of Post-Quantum Cryptography on Constrained and General-Purpose Architectures

Benchmark of the three NIST post-quantum standards, FIPS 203 (ML-KEM), FIPS 204 (ML-DSA) and FIPS 205 (SLH-DSA), measuring speed and energy for key generation, signing and verification. Tests ran on Raspberry Pi 1, Zero and 4 and on laptop hardware, using OpenSSL 3.5 and a FNIRSI FNB58 USB power meter. ML-KEM and ML-DSA match classical elliptic-curve cryptography, while SLH-DSA signing on 32-bit devices cost up to 243% more energy than on 64-bit.

OpenSSLRaspberry PiFNIRSI FNB58

ML-KEMML-DSASLH-DSA+5

Hardware & RF· Added 20 Oct 2026, published 19 Oct 2026

eprint.iacr.orgpaper🛡️ Security

Zippel: A Language, Compiler, Runtime, and Analyzer for ZK Proof Systems

Zippel is a language, compiler, runtime and analyzer for writing zero-knowledge proof systems in syntax close to the pseudocode in cryptography papers. Its type system and runtime remove vulnerability classes by construction, for example by synchronizing transcripts automatically and applying the Fiat–Shamir transform correctly. Its static analyses check completeness and soundness from the protocol description alone. The authors implemented 35 proof systems, including Sumcheck, Schnorr, KZG, Groth16, Bulletproofs, Hyrax, Spartan, Dory, HyperPlonk, DeKART and Pari. They report performance competitive with hand-written multi-core implementations.

ZippelRust

Fiat–Shamir transformSumcheckSchnorr+9

AppSec· Added 17 Oct 2026, published 16 Oct 2026

bankless.comarticle🛡️ Security

Crypto's Quantum Defense Is Being Built in the Open

Bankless article on Eigen Labs' Yukon platform, which runs open challenges where researchers and AI agents attack and improve cryptography. It covers ECDSA.fail (quantum circuit cost for attacking Bitcoin/Ethereum ECDSA, cut about 88% from baseline), HashSmash (SHA-256 weakness hunting, so far only on reduced versions), sig.golf (hash-based signatures), StarkWare's Quantum Safe Bitcoin (cost down from about $320 to $59) and better.codes (provable security raised from 64 to about 68 bits). The argument is that public, measurable attack-cost data helps defenders prepare better than withholding circuits does. All gains are theoretical and no quantum computer has run an attack at this scale.

YukonBitcoinEthereum+1

Eigen LabsECDSA.failHashSmash+10

other, AI Security· Published and added 14 Oct 2026

eprint.iacr.orgpaper🛡️ Security

Leakage-Resilient Incompressible Cryptography: Constructions and Barriers

Introduces leakage-resilient incompressible cryptography, a security model combining leakage resilience (partial key leakage plus full ciphertext) with incompressibility (full key but only part of the ciphertext or signature). It gives a transformation from incompressible symmetric-key encryption (SKE) to leakage-resilient incompressible SKE, a leakage-resilient incompressible PKE built from a new leakage-resilient non-committing KEM, and an incompressible SKE with ciphertext and compression rate 1/2 using invertible extractors. It also gives a leakage-resilient incompressible signature scheme in the random oracle model under DCR or LWE plus Decisional Linear. Black-box impossibility results show barriers to improving these parameters.

DziembowskiDecisional Linear assumptionLWE+3

other· Added 14 Oct 2026, published 13 Oct 2026

eprint.iacr.orgpaper🛡️ Security

Causal Awareness in End-to-End Encrypted Group Messaging

Cryptography paper that extends Chen and Fischlin's two-user Signal analysis (Eurocrypt 2024) to group chats. It introduces "causal awareness": a receiver can reconstruct part of the causal context in which an accepted message was sent. Network delay or adversarial interference can otherwise show an authentic message in a misleading context. Senders transmit records of what they have sent and received, and receivers verify these records and compare them with their own. The paper gives correctness and security definitions parameterized by how much causal information must be recovered, baseline constructions with proofs, and checkpoint-aided and server-aided variants. It also discusses how to surface this information in a messenger's UI.

Signal

Chen and Fischlincausal awarenessLamport clocks+1

other· Added 14 Oct 2026, published 13 Oct 2026

eprint.iacr.orgpaper🛡️ Security

Genericity in multivariate cryptography

The paper proves that some properties of UOV (Unbalanced Oil and Vinegar) public-key ideals and varieties hold generically. These include equidimensionality of the UOV varieties and radicality of the public key ideals. This justifies the regularity assumptions used in algebraic cryptanalysis of UOV and its variants. The authors also review earlier multivariate schemes that were broken because they were non-generic, and give one counter-example whose non-genericity looks hard to exploit.

UOVgenericityalgebraic cryptanalysis

other· Added 14 Oct 2026, published 12 Oct 2026

eprint.iacr.orgpaper🛡️ Security

Censorship Resistance in Credential Systems and Application to the EUDI Wallet

ePrint paper that defines a security model for censorship resistance in anonymous credential systems, where a malicious issuer uses information gathered at issuance to selectively deny credentials. It gives a round-optimal construction built on blind signatures with selective disclosure at presentation. It also presents CRACS, an instantiation for the European Digital Identity Wallet (EUDIW). CRACS keeps selective disclosure and adds unlinkability between issuance and presentation. It confines the advanced cryptography to issuance, so secure elements, credential formats, signature schemes and verifiers stay unchanged and deployment can be incremental.

EUDI Wallet

CRACSEUDIW

Identity & Access· Added 14 Oct 2026, published 10 Oct 2026

thedefiant.ioarticle🛡️ Security

Coinbase Cryptographer Calls Drake's 'Bunker Mode' Warning 'The Very Definition of FUD'

News piece reporting that a Coinbase cryptographer dismissed Justin Drake's proposal for Ethereum validators/users to adopt a 'bunker mode' against AI-accelerated cryptanalysis as unfounded FUD. Vitalik Buterin weighed in that AI-accelerated math risk is real but should be pointed at lattice-based cryptography rather than elliptic-curve schemes like ECDSA used by Ethereum, while a former Ethereum Foundation researcher argued bunker mode would not help if the curves actually broke.

Ethereum

Vitalik ButerinJustin DrakeECDSA+1

Blockchain· Published and added 8 Oct 2026

microsoft.comarticle🛡️ Security

Post-quantum authentication: Why organizations should start testing certificate ecosystems now

Microsoft Security Blog post arguing that post-quantum cryptography planning must extend beyond encrypted-data confidentiality to authentication and certificate ecosystems, since larger PQC certificate chains and new algorithms like ML-DSA-87 can break PKI workflows, HSMs, and legacy infrastructure. It details Microsoft's PQC TLS Pilot Program, launched August 27, 2026, which lets approved certificate authorities (ComSign, DigiCert, HARICA, IdenTrust, Sectigo, Shanghai Electronic Certification Authority, SSL.com) test ML-DSA-87 certificate issuance under the Microsoft Trusted Root Program, plus Windows 11 builds (KB5101681, KB5101684) that support evaluating ML-DSA certificates via Schannel in non-production environments. It lays out a six-step readiness plan: inventory certificate dependencies, map trust relationships, assess vendor roadmaps, identify long-lived infrastructure, build test environments, and plan a multi-year migration.

WindowsSchannelTLS

ML-DSAML-DSA-87PQC TLS Pilot Program+8

Identity & Access, GRC· Published and added 8 Oct 2026

decrypt.coarticle🛡️ Security

Will AI Break Crypto Encryption? Ethereum’s Vitalik Buterin Weighs In on 'Bunker Mode' Shift

Decrypt reports on Ethereum co-founder Vitalik Buterin's warning that AI-driven advances in mathematics could plausibly break lattice-based cryptography within two years, a day after Ethereum Foundation researcher Justin Drake urged the industry to adopt "bunker mode" — moving funds to addresses whose public keys have never been exposed. The piece covers pushback on reusing public keys, the tradeoff between quantum-resistant lattice schemes (used by projects like Cardano) and their potential AI-math vulnerability, and Buterin's preference shift toward hash-based cryptography, with commentary from BIP-360 co-author Isabel Foxen Duke and Charlie Quant Lab's Ananda Banerjee urging calm preparation over panic.

EthereumCardano

Vitalik ButerinIsabel Foxen DukeAnanda Banerjee+7

Blockchain· Published and added 8 Oct 2026

galaxy.comarticle🛡️ Security

Weekly Research Brief: Bitget Hack, AI Accord and SEC FAQs

Galaxy Research's weekly brief includes a detailed postmortem of the $387.5M Bitget hack: attackers exploited a zero-day in two unnamed third-party security products ("Product A"/"Product B") to obtain high-level internal credentials, inserted forged withdrawal commands into Bitget's wallet backend across 11 chains, then deleted the fraudulent commands — with Bitget attributing the attack to North Korean actors based on IP behavior and wallet overlaps found by Elliptic and TRM. The piece draws a direct parallel to the $1.5B Bybit/Lazarus heist (compromised Safe{Wallet} infrastructure rather than stolen keys) to argue that private-key cryptography is effectively solved and attackers now target the approval pipeline/intermediary services instead; it also covers the follow-on $3.8M NEAR Intents Omni-bridge exploit and THORChain's continued role laundering DPRK proceeds. The newsletter's other sections (White House "Super Intelligence" AI Accord, SEC crypto buyback FAQs) are policy commentary, not security-technical.

THORChainGnosis Safe

BitgetLazarus GroupDPRK+8

Blockchain, Threat Intel· Added 8 Oct 2026

decrypt.coarticle🛡️ Security

Ethereum Researcher Says AI May Break Encryption Before Quantum Does

Ethereum Foundation researcher Justin Drake warns that AI-driven mathematical advances could break ECDSA — the signature scheme securing Bitcoin and Ethereum — before quantum computers do, potentially recovering a private key from an exposed public key in about a week using a large GPU cluster. He calls for "bunker mode": a controlled mass migration of funds to fresh addresses whose public keys have never been exposed, urges major custodians (Binance, Bitbank, Robinhood, Bitfinex, Tether) to harden cold storage, and pushes Ethereum to accelerate its move to hash-based (post-quantum) cryptography.

EthereumBitcoinOpenAI

Justin DrakeECDSAbunker mode+3

Blockchain· Published and added 7 Oct 2026

coindesk.comarticle🛡️ Security

Quantum computers threaten exposed private keys rather than blockchains, Europol warns

Europol's European Cybercrime Center published a "Quantum Computing and Cryptocurrencies" report arguing that Bitcoin's hash-based blockchain history is far more quantum-resistant than the ECDSA public-key cryptography used to control wallets. It estimates roughly 6.9 million bitcoin sit in addresses with exposed public keys (including early pay-to-public-key and long-dormant "Satoshi era" outputs) that a sufficiently powerful quantum computer could eventually use to derive private keys, and cites a 2024 study putting full UTXO migration to quantum-resistant signatures at 76–300 days of cumulative block space, with new post-quantum signatures 10–120x larger than ECDSA.

BitcoinECDSA

Satoshi erapay-to-public-keyUTXO

Blockchain· Added 8 Oct 2026, published 7 Oct 2026

eprint.iacr.orgpaper🧠 AI

Post-Quantum Dropout-Resilient Verifiable Secure Aggregation for Federated Learning

PQ-DVSA is a verifiable secure aggregation protocol for federated learning that combines post-quantum cryptography, resilience to client dropouts, and verifiability of the server's aggregation result under bounded server-client collusion. It protects both clients' local model updates and their aggregation weights, lets the server reconstruct the aggregate mask for the active client set after dropouts, and lets clients cryptographically check the aggregation result. Experiments show learning accuracy comparable to exact weighted aggregation while cutting per-client encrypted-submission runtime by up to 96% versus SWAS, the closest prior scheme.

Fateme Sadat AzimiHossein PilaramJavad Mohajeri+2

training· Added 8 Oct 2026, published 7 Oct 2026

eprint.iacr.orgpaper🛡️ Security

Faster Provable Lattice Sieving with Spherical Codes

Aggarwal, Morolia, and Stephens-Davidowitz present a new lattice-sieving algorithm for μ-SVP (finding an approximate shortest nonzero vector) that combines fast nearest-neighbor subroutines from heuristic sieving with a perturbation argument that yields a formally proven correctness guarantee. Its running time, roughly 2^0.3066n under a plausible spherical-code-size assumption (and 2^0.6078n using only proven bounds), is far faster than the prior best provable algorithm (2^0.802n, Liu-Wang-Xu-Zheng 2011) and close to the best heuristic rate (~2^0.2925n), narrowing the long-standing gap between proven and heuristic lattice attack runtimes. This matters for setting conservative, defensible hardness estimates and parameter choices in lattice-based post-quantum cryptography.

Shortest Vector ProblemDivesh AggarwalAditya Morolia+3

other· Added 8 Oct 2026, published 7 Oct 2026

hackers-arise.comwriteup🛡️ Security

CUDA Basics for Hackers, Part 1: Getting Started

First part of a Hackers-Arise series teaching CUDA (NVIDIA Compute Unified Device Architecture): installing the CUDA toolkit and nvcc compiler on Kali or Debian-based Linux, writing a basic CUDA C++ kernel, and compiling and running a simple parallel vector-addition program. It explains GPU threading concepts (kernels, thread blocks, grids) and frames CUDA as foundational to AI workloads and to future security applications like password cracking, real-time threat detection and post-quantum cryptography, though those applications are only listed, not demonstrated, here.

Kali LinuxLinuxDebian

Master OTW

Learning· Added 7 Oct 2026, published 6 Oct 2026

eprint.iacr.orgpaper🛡️ Security

N2SF-Based Post-Quantum Cryptography Migration Framework for Data in National and Public Institutions

An IACR ePrint paper proposes PQC migration decision criteria for data held by national and public institutions, derived from South Korea's N2SF (National Network Security Framework) protection requirements and each data object's cryptographic dependencies/operational state. It distinguishes migration actions (payload retention, key rewrapping, re-encryption, communication migration, signature renewal) from execution decisions (allow/defer/deny), requiring consistent completion checks, recoverable registered copies, and current authority. A reference implementation ran 225 policy trials and 9 interruption trials, showing per-stage/completion rechecking prevented unauthorized completions or reads that occurred when reusing initial decisions, and confirmed clean resumption after interruption; institutional approval and production-scale key management remain unvalidated.

Post-quantum cryptography

N2SFDo-Yun ParkYu-Lim Hyoung+1

GRC· Added 8 Oct 2026, published 5 Oct 2026

galaxy.comarticle🛡️ Security

Déjà Vu, Lazarus Crew: $387.5m Bitget Exploit Repeats a Pattern

Galaxy Research post-mortem on the $387.5m Bitget hot/warm wallet theft across 11 chains, attributed to North Korean (Lazarus/DPRK) actors via IP behavior and onchain wallet-overlap analysis by Elliptic and TRM. SlowMist traced the intrusion to a zero-day exploit against two unnamed third-party security vendors ("Product A"/"Product B") that let attackers insert and then delete fraudulent withdrawal commands in Bitget's wallet backend, rather than compromising private keys or cold storage. The piece draws a direct parallel to the February 2025 Bybit/Safe{Wallet} $1.5B theft (doctored signing interface) and the same-week NEAR Intents $3.8m hot-wallet exploit, arguing that private-key cryptography is now reliably secure so attackers instead target the intermediary infrastructure/pipeline that authorizes transactions, with stolen funds repeatedly laundered through THORChain.

THORChainNEAR IntentsGnosis Safe+1

Lazarus GroupDPRKBitget+6

Blockchain, Threat Intel· Added 2 Oct 2026

blog.trailofbits.comwriteup🛡️ Security

SequenceHash: multihashing for the rest of us

Trail of Bits introduces SequenceHash and its keyed variant SequenceMAC, hash-agnostic multihashing constructions similar in goal to NIST's TupleHash but not tied to Keccak, working with SHA256/384/512, BLAKE, and RIPEMD. The spec, now part of the Community Cryptography Specification Project, provides unambiguous input encoding, length-extension prevention, built-in customization strings, and HMAC-style keyed MACs that avoid HMAC's key-pseudocollision issues; reference implementations ship in Rust, Go, and Python with full test vectors.

RustGoPython

TupleHashHMACNIST SP 800-185+10

AppSec· Published and added 2 Oct 2026

openzeppelin.comarticle🛡️ Security

From Algebra to Noise: Why Post-Quantum Cryptography Looks Different

OpenZeppelin Security's technical explainer on why post-quantum cryptography looks so different from classical crypto: Shor's algorithm exploits the abelian hidden-subgroup structure underlying RSA, Diffie-Hellman, ECDSA, EdDSA and pairing-based schemes, while Grover's algorithm only halves the effective security of hashes and symmetric keys (256-bit hashes stay at a comfortable 128-bit level). It then walks through NIST's finalized lattice/hash-based PQC standards — ML-KEM (Kyber) for key establishment, ML-DSA (Dilithium) for general signatures, SLH-DSA (SPHINCS+) as a conservative hash-based backup, plus future Falcon/FN-DSA and code-based HQC — mapping each to blockchain use cases and covering real deployment (Starknet's Falcon-512 Cairo account contracts), Ethereum account-abstraction/hybrid-signature migration paths, Bitcoin's UTXO/consensus constraints, Ethereum's LeanSig consensus-signature research, and a concrete institutional crypto-asset-inventory and PQC audit checklist.

EthereumBitcoinML-KEM+3

NISTCRYSTALS-KyberCRYSTALS-Dilithium+10

Blockchain· Added 29 Sep 2026, published 14 Sep 2026

wiz.ioarticle🛡️ Security

Breaking Down the White House’s Actions on Post-Quantum Cryptography Readiness

Wiz breaks down Executive Order 14409 ('Securing the Nation Against Advanced Cryptographic Attacks') and OMB memorandum M-26-15, which set accelerated federal deadlines for migrating High Value Assets and High Impact Systems to NIST-approved post-quantum cryptography (key establishment by 2030, digital signatures by 2031). It covers requirements for automated cryptographic inventories, forthcoming NIST/CISA Cryptographic Bill of Materials (CBOM) guidance, Harvest-Now-Decrypt-Later risk prioritization, FedRAMP/FAR Council contractor compliance rules, and comparable international timelines (EU, Japan, Australia, India), before pitching Wiz's own CBOM/PQC readiness tooling.

Wiz

Executive Order 14409M-26-15FAR Council+3

GRC· Added 3 Sep 2026, published 2 Jul 2026

blog.trailofbits.comwriteup🛡️ Security

Shipping post-quantum cryptography to Python

Trail of Bits, funded by the Sovereign Tech Agency, implemented Rust bindings for NIST's ML-KEM (FIPS 203) key-establishment and ML-DSA (FIPS 204) digital-signature standards into pyca/cryptography, shipped in version 48 with AWS-LC backend support. The post makes them a pip install away for the Python ecosystem (pyca/cryptography sees 1.2B monthly PyPI downloads and underpins Certbot, Ansible, Airflow, and paramiko), while detailing the size/performance tradeoffs versus Ed25519/X25519 and noting SLH-DSA (FIPS 205) support and protocol-level integration are still in progress.

PythonPyPIRust+3

ML-KEMML-DSASLH-DSA+6

AppSec· Added 3 Sep 2026, published 30 Jun 2026

wiz.ioarticle🛡️ Security

State of Post Quantum Cryptography | Wiz Blog

Wiz's follow-up PQC research post quantifies real-world adoption of post-quantum key exchange (ML-KEM/X25519MLKEM768) and digital signatures (ML-DSA, SLH-DSA, pending FN-DSA) across AWS, Azure, and GCP APIs, OpenSSH/OpenSSL versions, and Go's crypto/tls. It finds stark gaps: Azure API servers show no PQC key-exchange support while GCP is universal and AWS sits at 13%, only 15% of TLS 1.3 connections observed use PQC-compliant key exchange, under 15% of OpenSSL instances support PQC, and less than 1% of companies use AWS KMS ML-DSA signing keys. The piece also covers the shift in PQC priority from key exchange (mitigating Harvest-Now-Decrypt-Later attacks) to digital signature migration, and the coming move to Merkle Tree Certificates to keep PQC certificate chains manageable.

AWSAzureGoogle Cloud+3

ML-KEMML-DSASLH-DSA+9

Cloud & Infra, GRC· Added 5 Sep 2026, published 28 May 2026

bencteux.frwriteup🛡️ Security

Serious Cryptography (book review)

A detailed personal review of the first edition of 'Serious Cryptography: A Practical Introduction to Modern Encryption' by Jean-Philippe Aumasson (No Starch Press, 2017), aimed at non-cryptographer engineers. The reviewer highlights the book's chronological structure from basic concepts through symmetric and asymmetric crypto to post-quantum cryptography, praising its accessible AES walkthrough, MAC vs HMAC distinctions, elliptic curve explanations, and 'How things can go wrong' sections that tie real implementation pitfalls to actual vulnerabilities — useful reference material for vulnerability researchers and pentesters needing solid crypto fundamentals.

Jean-Philippe Aumasson

Learning· Added 3 Sep 2026, published 25 Apr 2026

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