#eddsa — Public Fediverse posts on home.social

thought it might be nice to sign #sphinx releases with #minisign and #ssh #eddsa keys, straight outta sphinx. minisign #privkeys are okish (they do need 40 B of entropy, 8 extra for a "keyid"). but did you know, that in ssh the public key is stored 3x in the ed25519 private #key? one time i can understand (could be 0 though), but 3 times? what have they been drinking? #fileformats

#sphinx #minisign #ssh #eddsa #privkeys #key

stf @[email protected] · 2025-01-27 · 22:26 UTC

thought it might be nice to sign #sphinx releases with #minisign and #ssh #eddsa keys, straight outta sphinx. minisign #privkeys are okish (they do need 40 B of entropy, 8 extra for a "keyid"). but did you know, that in ssh the public key is stored 3x in the ed25519 private #key? one time i can understand (could be 0 though), but 3 times? what have they been drinking? #fileformats

#sphinx #minisign #ssh #eddsa #privkeys #key

stf @[email protected] · 2025-01-27 · 22:26 UTC

thought it might be nice to sign #sphinx releases with #minisign and #ssh #eddsa keys, straight outta sphinx. minisign #privkeys are okish (they do need 40 B of entropy, 8 extra for a "keyid"). but did you know, that in ssh the public key is stored 3x in the ed25519 private #key? one time i can understand (could be 0 though), but 3 times? what have they been drinking? #fileformats

#sphinx #minisign #ssh #eddsa #privkeys #key

stf @[email protected] · 2024-12-04 · 17:12 UTC

do you know any service where you can use #eddsa keys with #webauthn online? do we still have to do rsa and ecdsa in 2024?

please boost maybe someone knows the answer.

#crypto #passkeys

#eddsa #webauthn #crypto #passkeys

Vengeur Masqué @[email protected] · 2023-03-09 · 15:41 UTC

#infosec #vulnerability
#Buffer_overflow in #SHA3 #SHAKE #Keccak and #XKCP #hash functions. Some versions of #EdDSA are impacted too 😟

https://eprint.iacr.org/2023/331

#infosec #vulnerability #buffer_overflow #shake #keccak #xkcp

Stéphane Bortzmeyer @[email protected] · 2019-02-02 · 07:33 UTC

RFC 8410: Algorithm Identifiers for Ed25519, Ed448, X25519, and X448 for Use in the Internet X.509 Public Key Infrastructure

Ce #RFC spécifie l'utilisation des #courbesElliptiques #Curve25519 et Curve448 dans PKIX, c'est-à-dire dans les certificats utilisés notamment pour TLS. Il réserve des identifiants pour les algorithmes, comme Ed25519.

https://www.bortzmeyer.org/8410.html

#EdDSA #ECDH

#ecdh #eddsa #curve25519 #courbeselliptiques #rfc

Stéphane Bortzmeyer @[email protected] · 2022-11-06 · 15:16 UTC

t-cose ("tea cosy", hence the teapots on the slides) is a C implementation of #COSE (signing #CBOR files). Many new features such as multiple signers, #edDSA, etc.

#cose #cbor #eddsa

Coelacanthus 😶‍🌫️ 🏳️‍⚧️ @[email protected] · 2024-05-16 · 14:58 UTC

@xtexChooser There is an article on djb how to construct #EdDSA. It may help you understand why it's that shape.
https://blog.cr.yp.to/20140323-ecdsa.html

#eddsa

Marcin Cieślak @[email protected] · 2024-03-16 · 01:17 UTC

Network Security Services (#NSS) 3.99 was tagged and released on
15th March 2024.

Among others,

- Bug 1325335 - Adding #EdDSA implementation.

https://bugzilla.mozilla.org/show_bug.cgi?id=1325335

Big thanks to Anna Weine (nkulatova) for working on this!

#nss #eddsa

𝕂𝚞𝚋𝚒𝚔ℙ𝚒𝚡𝚎𝚕 @[email protected] · 2024-02-25 · 10:40 UTC

Thank you @Kovah for your detailed article. This shows what the current #SSH keys #security is. Now ALL of us just have to realize and implement this:

«Why and How: Switch from #RSA to #EdDSA / #ED25519 SSH keys»

🔏 https://blog.kovah.de/en/2019/switching-from-rsa-to-eddsa-ec25519/

#ssh #security #rsa #eddsa #ed25519

Crypto News @[email protected] · 2024-02-05 · 15:17 UTC

Farcaster Records Surge in Daily Users with Frames Launch - The number of daily active users on the decentralized social protocol Farcaster surged to... - https://cryptonews.com/news/farcaster-records-surge-in-daily-users-with-frames-launch.htm #farcaster #definews #warpcast #eddsa

#eddsa #warpcast #definews #farcaster

Todd A. Jacobs | Pragmatic Cybersecurity @[email protected] · 2024-02-05 · 00:13 UTC

@[email protected] @letsencrypt To clarify, there are some 3rd party apps that are outdated or non-FOSS SMTP/IMAP clients, but nothing that really handles @GnuPG directly on either #iOS or #iPadOS. On the other hand, S/MIME is widely supported but less safe since it's not stored on a tamper-resistant and removable smart card, but at least it would integrate with Apple Mail and others.

It's the fact that getting an S/MIME certificate that is signed by a widely-used certificate authority is more costly than it's worth. I'd really prefer to use #GnuPG with either attestation credentials or an #EDDSA signing key on an external token like a #Yubikey

I can't be the only person who's wondered about this, but I can't find a lot of how-tos about this particular use case. Whether S/MIME or PGP/MIME, how are you supposed to integrate the on-token certificate? If that's a no-op because of Apple's walled garden, then where are people getting their S/MIME-specific certificates without having to ask recipients to trust self-signed keys?

#ios #ipados #gnupg #eddsa #yubikey

Diego Córdoba 🇦🇷 @[email protected] · 2023-10-05 · 11:39 UTC

Y qué loco, ahora hablando sobre #EdDSA, un algoritmo que recomendé hace poco para la generación de claves asimétricas en SSH.

No lo vieron? 👇 👇 👇
https://youtu.be/qgtuWWd35mY

#eddsa

Xanny.eth @[email protected] · 2022-11-25 · 16:52 UTC

Having issues with GitHub atm, account flagged, but I jotted down the commands to create a secure #EdDSA #PGP key. It requires #Ed25519 for cert, sign, and auth keys and #Curve25519 for encryption.

Strictly speaking you don’t require the auth key for your use case, it’s mostly useful only for SSH.

But this is the correct way to create a secure EdDSA key.

It’s also of note that it is the default setup for latest Kleopatra.

Here’s the link, feel free to drop it in the thread for further discussion:

https://telegra.ph/Best-practice-for-generating-a-secure-PGP-key-EdDSA-11-25

#curve25519 #ed25519 #eddsa #pgp