Since SHA-1 is no longer considered cryptographically secure, I think we should follow suit at some point in the near future, so that JSch provides sensible defaults that are aligned with general security practices. This would not unequivocally disable the use of ssh-rsa type keys themselves, ...
It is also possible that a host key has just been changed.The fingerprintfortheRSAkey sent by the remote host isSHA256:uNiVztksCsDhcc0u9e8BujQXVUpKZIDTMczCvj3tD2s.Please contact your system administrator.Add correct host keyin/Users/msw/.ssh/known_hosts togetridofthismessage.OffendingRSAkeyi...
* ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1.asn */ /* * id-sha1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) * oiw(14) secsig(3) algorithms(2) 26 } */ static const u_char id_sha1[] = { 0x30, 0x21, /* type Sequence, length 0x21 ...
Therefore, the public key owners do not know what data the other party has sent to each other, which ensures privacy. In addition, once the public key is leaked, the leaked public key cannot decrypt the data transmitted on the network, and will not affect the security of the ciphertext. ...
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