Tracking BitCoin "Q-Day".

Researcher cracks 15-bit elliptic curve key, aka an Elliptic Curve Cryptography (ECC) Key using public quantum hardware and is awarded the “Q-Day Prize bounty" of 1 BTC.

BitCoin and Ethereum utilize ECC - the larger 256 bit key - specifically the secp256k1 curve, for securing wallets and transactions. https://decrypt.co/365444/bitcoin-q-day-draws-nearer-quantum-researcher-breaks-simplified-key #Bitcoin #Cryptography #Ethereum #Crypto #CryptoCurrencies #Encryption #Security #ECC #EllipticCurve #QDay #DigitalSignature #BlockChain #QuantumComputing #Quantum #BTC

Given the amount of online scams, if you ever need to verify that a message truly came from me, feel free to ask for a signed response. My public keys are available here:

https://sami-lehtinen.net/public-keys

#identity #proof #authentication #digitalsignature

Please help with testing a new
#Thunderbird #Security feature: Unobtrusive Signatures, a novel mechanism for digitally signing email, currently implemented for #OpenPGP.

It avoids the unexpected signature attachments that are shown by non-supporting email clients for emails that used the traditional signing format, and that were frequently confusing recipients. With this new mechanism, it should be fine to sign all emails.

More details here:
https://thunderbird.topicbox.com/groups/planning/Tfd5f9c444ef3d06c-M6cac45a5459adb7e58a7ac79/call-for-testing-openpgp-unobtrusive-signatures

#digitalsignature

Many businesses still print, sign, and scan invoices before sending them.
But modern accounting tools support something better: digital signatures.

If you're using Tally Prime, invoices can be exported as digitally signed PDFs, ensuring authenticity and tamper-proof records.

A useful walkthrough explains how Digital Signature in Tally Prime works and how invoices can be securely signed during export. Here: https://seerweb.in/digital-signature-in-tally-prime/

#Accounting #FinTech #DigitalSignature #TallyPrime

Go paperless. Go powerful. ✍️🚀

Introducing SysfoSign – Digital Signature Solution for Businesses, powered by Sysfotion.

Transform the way you sign and manage documents.

#SysfoSign #DigitalSignature #PaperlessBusiness #Sysfotion #BusinessAutomation

The #blog post "Verify Arch Linux artifacts using VOA/OpenPGP" has been published:

https://devblog.archlinux.page/2026/verify-arch-linux-artifacts-using-voa-openpgp/

#ArchLinux #SovereignTechFund #STF #devblog #OpenPGP #RustLang #DigitalSignature #Verification #VOA

Together with @hko I have worked on the "File Hierarchy for the Verification of OS Artifacts" (#VOA) in 2024 and 2025.

This #STF ( @sovtechfund ) funded #specification and #ReferenceImplementation (🦀) enables technology and distribution agnostic verification of OS artifacts.

In this #blog post we are looking into the #verification of #ArchLinux artifacts, using the `voa` #CLI and its #OpenPGP backend:
https://devblog.archlinux.page/2026/verify-arch-linux-artifacts-using-voa-openpgp/

#devblog #RustLang #SovereignTechFund #DigitalSignature #packaging

Together with @hko @j-g00da, @orhun and @Nukesor I have been working on the #ALPM and #VOA projects in 2024 and 2025.

This #SovereignTechFund ( @sovtechfund ) funded work has recently come to a close.

You can read all about what was achieved and plans for future work on the #ArchLinux #devblog: https://devblog.archlinux.page/2026/a-year-of-work-on-the-alpm-project/

#OpenPGP #packaging #DigitalSignature #Verification #STF #blog #RustLang

Ra mắt FairSign, giải pháp ký điện tử mã nguồn mở & miễn phí như một lựa chọn thay thế cho DocuSign.

#mãnguồnmở #kýsố #côngnghe #opensource #digitalsignature

https://www.reddit.com/r/SideProject/comments/1q6f0mj/got_tired_of_paying_docusign_so_built_open_source/