Difference between revisions of "Ed25519"
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↑ Murenin, Constantine A. (2015-02-01). Soulskill (ed.). "OpenSSH Will Feature Key Discovery and Rotation For Easier Switching To Ed25519". Slashdot. Retrieved 2015-02-01.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
↑ https://lwn.net/Articles/637147/
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| − | [[wikipedia:Ed25519]] is the [[EdDSA]] signature scheme using [[SHA-512]] (SHA-2) and [[Curve25519]]. | + | [[wikipedia:Ed25519]] is the [[EdDSA]] [[signature scheme]] using [[SHA-512]] (SHA-2) and [[Curve25519]]. |
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| + | == OpenSSH == | ||
* [[OpenSSH]] 8.5 March, 2021 changes the first-preference signature algorithm from [[ECDSA]] to ED25519. | * [[OpenSSH]] 8.5 March, 2021 changes the first-preference signature algorithm from [[ECDSA]] to ED25519. | ||
* [[OpenSSH]] 6.8: March 18, 2015 | * [[OpenSSH]] 6.8: March 18, 2015 | ||
** Added new <kbd>[email protected]</kbd> extension to facilitate public key discovery and rotation for trusted hosts (for transition from [[Digital Signature Algorithm|DSA]] to [[Ed25519]] public host keys)<ref>{{cite web |url=http://it.slashdot.org/story/15/02/01/0533208/openssh-will-feature-key-discovery-and-rotation-for-easier-switching-to-ed25519 |title= OpenSSH Will Feature Key Discovery and Rotation For Easier Switching To Ed25519 |first=Constantine A. |last=Murenin |editor=Soulskill |date=2015-02-01 |accessdate=2015-02-01 |publisher=[[Slashdot]]}}</ref> | ** Added new <kbd>[email protected]</kbd> extension to facilitate public key discovery and rotation for trusted hosts (for transition from [[Digital Signature Algorithm|DSA]] to [[Ed25519]] public host keys)<ref>{{cite web |url=http://it.slashdot.org/story/15/02/01/0533208/openssh-will-feature-key-discovery-and-rotation-for-easier-switching-to-ed25519 |title= OpenSSH Will Feature Key Discovery and Rotation For Easier Switching To Ed25519 |first=Constantine A. |last=Murenin |editor=Soulskill |date=2015-02-01 |accessdate=2015-02-01 |publisher=[[Slashdot]]}}</ref> | ||
| − | ** <code>AuthenticationMethods=publickey,publickey</code> to require that users authenticate using two different [[public keys]]<ref>https://lwn.net/ | + | ** <code>AuthenticationMethods=publickey,publickey</code> to require that users authenticate using two different [[public keys]] <ref>https://lwn.net/Articles/637147/</ref> |
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| + | == Key management == | ||
| + | Key generation: | ||
* <code>[[ssh-keygen -t ed25519]]</code> | * <code>[[ssh-keygen -t ed25519]]</code> | ||
* <code>ssh-keygen -t ed25519 -f your_new_ed25519_key</code> | * <code>ssh-keygen -t ed25519 -f your_new_ed25519_key</code> | ||
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[[ssh-keygen]] -e -m [[PEM]] -f private_key_in_ed25519_format | [[ssh-keygen]] -e -m [[PEM]] -f private_key_in_ed25519_format | ||
do_convert_to_pem: unsupported key type ED25519 | do_convert_to_pem: unsupported key type ED25519 | ||
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== Related terms == | == Related terms == | ||
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* [[EdDSA]] | * [[EdDSA]] | ||
* [[djb]] | * [[djb]] | ||
| − | * [[key | + | * [[Key size]] |
| + | * <code>[[aws ec2 create-key-pair]]</code> | ||
== See also == | == See also == | ||
Latest revision as of 10:53, 27 February 2024
wikipedia:Ed25519 is the EdDSA signature scheme using SHA-512 (SHA-2) and Curve25519.
OpenSSH[edit]
- OpenSSH 6.8: March 18, 2015
- Added new [email protected] extension to facilitate public key discovery and rotation for trusted hosts (for transition from DSA to Ed25519 public host keys)[1]
AuthenticationMethods=publickey,publickeyto require that users authenticate using two different public keys [2]
Key management[edit]
Key generation:
ssh-keygen -t ed25519ssh-keygen -t ed25519 -f your_new_ed25519_key
ssh-keygen -e -m PEM -f private_key_in_ed25519_format do_convert_to_pem: unsupported key type ED25519
Related terms[edit]
ssh-ed25519in.authorized_keysconfig filessh-copy-id- EdDSA
- djb
- Key size
aws ec2 create-key-pair
See also[edit]
- OpenSSH (changelog):
/etc/ssh/sshd_config|/etc/ssh/ssh_config|~/.ssh/|openSSL | sshd logs|sftp|scp|authorized_keys|ssh-keygen|ssh-keyscan|ssh-add|ssh-agent|ssh|Ssh -O stop|ssh-copy-id|CheckHostIP|UseKeychain, OpenSSF - Public-key cryptography: RSA, DSA, ECDSA, EdDSA (Ed25519), AES, RSA Conference, hash,
pkeyutl, Signature, key length, Easyrsa, OAEP, Ron Rivest, Adi Shamir, Leonard Adleman
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