Difference between revisions of "Public key cryptography"

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{{Draft}}
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[[wikipedia:Public key cryptography]]
  
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* [[RSA]]/[[DSA]]
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* [[BLS digital signature]]
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== Commands ==
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Generate public key from [[private key]]:
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* <code>[[ssh-keygen -y]] -f ~/.ssh/id_rsa > ~/[[.ssh/]]id_rsa[[.pub]]</code>
  
 
Generate a public key from a [[PEM]] private key
 
Generate a public key from a [[PEM]] private key
 
* <code>[[openssl]] [[rsa]] -in mykey.pem -pubout > mykey.pub</code>
 
* <code>[[openssl]] [[rsa]] -in mykey.pem -pubout > mykey.pub</code>
  
Generate fingerpring
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Generate [[fingerpring]]:
 
* <code> [[ssh-keygen]] -l -f /etc/ssh/ssh_host_XXXXkey.pub</code>
 
* <code> [[ssh-keygen]] -l -f /etc/ssh/ssh_host_XXXXkey.pub</code>
  
Generate public key from [[private key]]:
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* <code>ssh-keygen -y -f ~/.ssh/id_rsa > ~./.ssh/id_rsa.pub</code>
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* <code>[[gpg --gen-key]]</code>
  
  
 
[[OpenSSH 7.6]] (2017)
 
[[OpenSSH 7.6]] (2017)
* Refuse [[keys]] <1024 bits in length and improve reporting for keys that do not meet this requirement.
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* Refuse [[keys]] <1024 bits in [[key length | lengh]] and improve reporting for keys that do not meet this requirement.
  
 
== Related terms ==
 
== Related terms ==
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* [[X.509]]
 
* <code>[[ssh-copy-id]]</code>
 
* <code>[[ssh-copy-id]]</code>
 
* <code>[[ssh-keygen]]</code> and <code>[[puttygen]]</code>
 
* <code>[[ssh-keygen]]</code> and <code>[[puttygen]]</code>
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* <code>[[ssh-keyscan]]</code>
 
* [[sshd logs]]: [[Failed publickey for]]
 
* [[sshd logs]]: [[Failed publickey for]]
 
* [[Athena IDProtect card]]
 
* [[Athena IDProtect card]]
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* [[Cisco IOS: Configure public RSA key authentication]]
 
* [[Cisco IOS: Configure public RSA key authentication]]
 
* [[Whitfield Diffie]]
 
* [[Whitfield Diffie]]
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* [[Key length]]
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* [[EdDSA]]: [[ed25519]], [[RSA]], [[DSA]]
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* [[ECDSA]]: [[Bitcoin]]
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* [[SHA]]
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* [[TLS]], [[S/MIME]], [[PGP]], [[GPG]]
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* [[AWS]]: <code>[[aws ec2 import-key-pair]]</code>, <code>[[aws ec2 create-key-pair]]</code>, <code>[[aws ec2 describe-key-pairs]]</code>
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* [[BLS digital signature]]
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* <code>[[sops]]</code>
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* [[WebAuthn]]
  
 
== See also ==
 
== See also ==
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* {{Key}}
 
* {{ssh}}
 
* {{ssh}}
* [[Public key certificate]]
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* {{RSA}}
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* {{Public key}}
 
* {{CA}}
 
* {{CA}}
  
  
 
[[Category:Security]]
 
[[Category:Security]]

Latest revision as of 08:14, 19 January 2023

wikipedia:Public key cryptography


Commands[edit]

Generate public key from private key:

Generate a public key from a PEM private key

Generate fingerpring:



OpenSSH 7.6 (2017)

  • Refuse keys <1024 bits in lengh and improve reporting for keys that do not meet this requirement.

Related terms[edit]

See also[edit]

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