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What is the current encryption standard for ssh keys (2023)

CL answered on July 29, 2023 Popularity 1/10 Helpfulness 1/10

answer What is the current encryption standard for ssh keys (2023)

What is the current encryption standard for ssh keys (2023)

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When it comes down to it, the choice is between RSA 2048/4096 and Ed25519 and the trade-off is between performance and compatibility. RSA is universally supported among SSH clients while EdDSA performs much faster and provides the same level of security with significantly smaller keys. Peter Ruppel puts the answer succinctly:

The short answer to this is: as long as the key strength is good enough for the foreseeable future, it doesn't really matter. Because here we are considering a signature for authentication within an SSH session. The cryptographic strength of the signature just needs to withstand the current, state-of-the-art attacks.

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Source: goteleport.com

Tags: encryption ssh-keys whatever

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Contributed on Jul 29 2023

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What is the current encryption standard for ssh keys (2023)

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