With a focus on usability, @almalinux OS 10 has been released
https://www.admin-magazine.com/News/AlmaLinux-OS-10-Released?utm_source=mam
#EnterpriseLinux #AlmaLinux #RHEL #cryptography #OpenSSH #sudo #SecureBoot

zf-zebrachain 0.0.8 is out!

This week in #ZebraChain development: I switched from blake3 to blake2 for hashing and KDF; impl'ed ZeroizeOnDrop for Secret; added new SubSecret type; improved how KDF is done for the ed25519, ML-DSA seeds (block index is now used as salt); some small API improvements; added more Know Answer Tests to tighten down the protocol specification; switched from ML-DSA-65 parameters to ML-DSA-44.

https://crates.io/crates/zf-zebrachain

Excited to see Bletchley Park today. #CodeBreakers #Cryptography #WWII #History #Museum #Enigma www.bletchleypark.org.uk

Bletchley Park | Home

So-called educated/bright people pulling everyone into AI shenanigans, clearly it is not about intellectual prowess.. #aNULLgesic

The 2025 ETSI/IQC Quantum-Safe Cryptography Conference kicked off yesterday in Madrid!

Chaired by IQC’s Michele Mosca, the event brings together global experts to tackle a key challenge: securing our digital world in the #quantum era.
#cryptography #Science

Discover more: https://www.etsi.org/events/2450-etsi-iqc-quantum-safe-cryptography-conference-2025#:~:text=ETSI/IQC%20Quantum%20Safe%20Cryptography%20Conference%202025

I wrote about #openssl #jdk21 and #pkcs12 #cryptography #debian #fedora https://kushaldas.in/posts/openssl-legacy-and-jdk-21.html
#java

Colt, Honeywell and Nokia join forces to trial space-based quantum-safe cryptography #quantum #honeywell #nokia #cryptography #Science

Discover more: https://youtu.be/ScMg8Aoagi8?si=m5R_vPaBaqmc8E50

A beginner's guide to constant-time cryptography via @RunxiYu https://lobste.rs/s/evpfs4 #cryptography
https://www.chosenplaintext.ca/articles/beginners-guide-constant-time-cryptography.html

Got to the good part of my nighttime reading: Substitution-Permutation Networks. This book is great because the equations, examples and diagrams all support each other in a way that I just keep flipping between the three for each concept until I understand the sum of the parts. #cryptography

The PGP Problem

Why do people keep telling me to use PGP? The answer is that they shouldn’t be telling you that, because PGP is bad and needs to go away.

#cryptography, #programming, #security

zf-zebrachain 0.0.7 is out!

https://docs.rs/zf-zebrachain/latest/zf_zebrachain/

A Survey of Results on the Blum-Blum-Shub Pseudorandom Number Generator https://lobste.rs/s/ro8n9a #cryptography #math
https://palaiologos.rocks/posts/bbs-survey/

AES-CBC encryption with Padding Oracle - CBC-R in 6 lines of code (by me):

ct=bytearray(("\x41" * 16).encode())
while len(pt_padded) >= 16:
pt_N = pt_padded[-16:]
dec = aes_cbc_poa_decrypt_1_block_noIV(ct[0:16])
ct = xor(dec, pt_N) + ct
pt_padded = pt_padded[:-16]

Image: result of encryption and decrypting it again, also with Padding Oracle

#ctf #cybersecurity #cryptography #cbc-r #paddingoracle

Bouncy Castle cryptography library turns 25 years! https://www.keyfactor.com/blog/the-bouncy-castle-project-turns-25-from-jce-jank-to-quantum-ready-royalty/ #BouncyCastle #Java #cryptography #OpenSource #Keyfactor

There Is No Diffie-Hellman but Elliptic Curve Diffie-Hellman

https://keymaterial.net/2025/05/23/there-is-no-diffie-hellman-but-elliptic-curve-diffie-hellman/

Post-quantum cryptography in OpenPGP https://lobste.rs/s/vosoyt #cryptography
https://openpgp.foo/posts/2025-05-pqc/

How Many #Qubits Will It Take to Break Secure Public Key #Cryptography Algorithms?

https://it.slashdot.org/story/25/05/24/0530234/how-many-qubits-will-it-take-to-break-secure-public-key-cryptography-algorithms

How Many #Qubits Will It Take to Break Secure #PublicKey #Cryptography #Algorithms ? - Slashdot
#privacy #security

https://it.slashdot.org/story/25/05/24/0530234/how-many-qubits-will-it-take-to-break-secure-public-key-cryptography-algorithms?utm_source=rss1.0mainlinkanon&utm_medium=feed

There is no Diffie-Hellman but Elliptic Curve Diffie-Hellman via @fanf https://lobste.rs/s/2adp0p #cryptography #math
https://keymaterial.net/2025/05/23/there-is-no-diffie-hellman-but-elliptic-curve-diffie-hellman/

A Presence-sensing drive for Securely Storing Secrets - When we hear about flash drives in the context of cybersecurity, we tend to think... - https://hackaday.com/2025/05/24/a-presence-sensing-drive-for-securely-storing-secrets/ #usbmassstorage #securityhacks #cryptography #unlockable