Key length

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wikipedia:Key length


  • macOS 10.15 (2019) requires that TLS server certificates and issuing CAs using RSA keys must use key sizes greater than or equal to 2048. [1]


OpenSSH 7.6 (October 2017)

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

OpenSSH 4.2: September 1, 2005

  • Increase the default size of new RSA/DSA keys generated by ssh-keygen from 1024 to 2048 bits.


See also[edit]

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