# ed25519

Ed25519 is an elliptic-curve digital signature system used for signing and authentication, including in SSH.

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## Signing Git commits and tags with SSH

DevFeed: [Signing Git commits and tags with SSH](<https://devfeed.tech/articles/signing-git-commits-and-tags-with-ssh-37723.md>)

Original publisher: [Read original article](<https://carlosbecker.com/posts/git-ssh-signing/>)

Author: Carlos Alexandro Becker

Published: 2025-11-19T00:00:00Z

Content type: tutorial

Language: en

Sources: [Carlos Becker](<https://devfeed.tech/sources/carlos-becker.md>)

Topics: [Git](<https://devfeed.tech/topics/git.md>), [ssh](<https://devfeed.tech/topics/ssh.md>), [ECDSA](<https://devfeed.tech/topics/ecdsa.md>), [ed25519](<https://devfeed.tech/topics/ed25519.md>)

Tags: [dsa](<https://devfeed.tech/tags/dsa.md>), [ecdsa](<https://devfeed.tech/tags/ecdsa.md>), [ed25519](<https://devfeed.tech/tags/ed25519.md>), [git](<https://devfeed.tech/tags/git.md>), [rsa](<https://devfeed.tech/tags/rsa.md>), [signing](<https://devfeed.tech/tags/signing.md>), [ssh](<https://devfeed.tech/tags/ssh.md>)

### AI overview

The article explains that Git commits and tags can be signed with SSH keys instead of GPG. It states that Ed25519, ECDSA, and RSA keys are supported, while DSA keys are not.

### Source excerpt

You can sign Git commits and tags with SSH keys instead of GPG.

## Ed25519 Support Arrives in Chrome

DevFeed: [Ed25519 Support Arrives in Chrome](<https://devfeed.tech/articles/ed25519-support-in-chrome-making-the-web-faster-and-safer-35623.md>)

Original publisher: [Read original article](<https://blog.ipfs.tech/2025-08-ed25519/>)

Author: Bumblefudge

Published: 2025-08-13T00:00:00Z

Content type: article

Language: en

Sources: [IPFS](<https://devfeed.tech/sources/ipfs.md>)

Topics: [ed25519](<https://devfeed.tech/topics/ed25519.md>), [Chrome](<https://devfeed.tech/topics/chrome.md>), [browsers](<https://devfeed.tech/topics/browsers.md>), [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [digital signature](<https://devfeed.tech/topics/digital-signature.md>), [API](<https://devfeed.tech/topics/api.md>), [Security](<https://devfeed.tech/topics/security.md>), [Web Development](<https://devfeed.tech/topics/web-development.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [browsers](<https://devfeed.tech/tags/browsers.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [cryptography](<https://devfeed.tech/tags/cryptography.md>), [digital-signature](<https://devfeed.tech/tags/digital-signature.md>), [ed25519](<https://devfeed.tech/tags/ed25519.md>), [object-object](<https://devfeed.tech/tags/object-object.md>), [security](<https://devfeed.tech/tags/security.md>)

### AI overview

Chrome 137 adds Ed25519 support to the WebCrypto API, completing support across the major browser engines described in the article.

### Source excerpt

Ed25519 is now supported in Chrome, finally joining the other browsers after much effort.

## How Ditching RSA Made Teleport 77% More CPU-Efficient

DevFeed: [How Ditching RSA Made Teleport 77% More CPU-Efficient](<https://devfeed.tech/articles/how-ditching-rsa-made-teleport-77-more-cpu-efficient-29631.md>)

Original publisher: [Read original article](<https://goteleport.com/blog/ditching-rsa-made-teleport-more-efficient/>)

Author: info@goteleport.com (Nic Klaassen)

Published: 2025-03-13T00:00:00Z

Content type: article

Language: en

Sources: [Teleport](<https://devfeed.tech/sources/teleport.md>)

Topics: [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [ECDSA](<https://devfeed.tech/topics/ecdsa.md>), [ed25519](<https://devfeed.tech/topics/ed25519.md>), [Latency](<https://devfeed.tech/topics/latency.md>), [cpu](<https://devfeed.tech/topics/cpu.md>), [Security](<https://devfeed.tech/topics/security.md>)

Tags: [cryptography](<https://devfeed.tech/tags/cryptography.md>), [ecdsa](<https://devfeed.tech/tags/ecdsa.md>), [ed25519](<https://devfeed.tech/tags/ed25519.md>), [latency](<https://devfeed.tech/tags/latency.md>), [performance](<https://devfeed.tech/tags/performance.md>), [rsa](<https://devfeed.tech/tags/rsa.md>), [security](<https://devfeed.tech/tags/security.md>), [ssh](<https://devfeed.tech/tags/ssh.md>), [ssl](<https://devfeed.tech/tags/ssl.md>), [switching](<https://devfeed.tech/tags/switching.md>)

### AI overview

Teleport's switch from RSA to ECDSA and Ed25519 in Teleport 17 reduced benchmarked CPU usage by 77% and latency by 37%, while requiring compatibility work across deployed environments and third-party tools.

### Source excerpt

How switching from RSA to ECDSA and Ed25519 reduced Teleport CPU usage by 77% and decreased latency by 37%

## How to Set Up SSH Keys: A Step-by-Step Guide (2026) | Teleport

DevFeed: [How to Set Up SSH Keys: A Step-by-Step Guide (2026) | Teleport](<https://devfeed.tech/articles/how-to-set-up-ssh-keys-a-step-by-step-guide-2026-teleport-29692.md>)

Original publisher: [Read original article](<https://goteleport.com/blog/how-to-set-up-ssh-keys/>)

Author: sakshyam.shah@goteleport.com (Sakshyam Shah)

Published: 2022-02-03T00:00:00Z

Content type: tutorial

Language: en

Sources: [Teleport](<https://devfeed.tech/sources/teleport.md>)

Topics: [ssh](<https://devfeed.tech/topics/ssh.md>), [ed25519](<https://devfeed.tech/topics/ed25519.md>), [OpenSSH](<https://devfeed.tech/topics/openssh.md>), [private key](<https://devfeed.tech/topics/private-key.md>), [public key](<https://devfeed.tech/topics/public-key.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [Server](<https://devfeed.tech/topics/server.md>)

Tags: [ed25519](<https://devfeed.tech/tags/ed25519.md>), [github](<https://devfeed.tech/tags/github.md>), [guide](<https://devfeed.tech/tags/guide.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [openssh](<https://devfeed.tech/tags/openssh.md>), [private-key](<https://devfeed.tech/tags/private-key.md>), [public-key](<https://devfeed.tech/tags/public-key.md>), [ssh](<https://devfeed.tech/tags/ssh.md>)

### AI overview

A step-by-step guide to setting up SSH keys with ssh-keygen and Ed25519, adding public keys to servers or GitHub, and protecting private keys with passphrases. It also explains when short-lived SSH certificates may be preferable to long-lived keys.

### Source excerpt

Learn how to set up SSH keys with ssh-keygen and Ed25519, add your key to a server or GitHub, and when short-lived SSH certificates beat long-lived keys.