vanityssh allows you to generate millions of ED25519 private keys in the OpenSSH private key format and run a regex search against the resulting public keys. You can use this to find patterns in ssh public keys that you like.
¯\_(ツ)_/¯
This is literally my first golang app and I have no idea if I am generating the keys in a safe way, so trust that however you want.
If you set streaming or a sufficiently hard(or impossible) pattern, you will use 100% CPU on all available threads until you manually exit the app.
Using vanityssh with no switches results in it returning the first generated ssh key and write it to id_ed25519 and id_ed25519.pub in the current directory.
Usage of ./vanityssh: -insensitive case-insensitive -regex string regex pattern goes here -streaming Keep processing keys, even after a match
Regex search, return the first key that matches any of the following consitions:
- Case-insensitive "vanity" at the end of the public key
- Case-insensitive "1234" at the end of the public key
- Case-sensitive "yay" at the end of the public key
$ ./vanityssh --regex'(?i)vanity$|1234$|(?-i)yay$'global_user_input = (?i)vanity$|1234$|(?-i)yay$Regex Pattern = (?i)vanity$|1234$|(?-i)yay$Press Ctrl+C to endSSH Keys Processed = 838634Total executiontime 13.507595831s-----BEGIN OPENSSH PRIVATE KEY-----b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZWQyNTUxOQAAACDNDeibTmOGsps2uMnGnATFIA220rGlvaAaTnUoMnsmsgAAAIj5TWM/+U1jPwAAAAtzc2gtZWQyNTUxOQAAACDNDeibTmOGsps2uMnGnATFIA220rGlvaAaTnUoMnsmsgAAAEA5u4xE+2JgExgvE0auyx9c4uHLwDca5c5t4Jw3cqNjGM0N6JtOY4aymza4aaaaBMUgDbbSsaW9oBpOdSgyeyayAAAAAAECAwQF-----END OPENSSH PRIVATE KEY-----ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM0N6JtOY4aymza4aaaaBMUgDbbSsaW9oBpOdSgyeyay
Find a public key with the word foobar (case-insensitive) anywhere in it, and keep finding keys forever:
$ ./vanityssh --streaming --insensitive --regex foobarglobal_user_input = foobarRegex Pattern = (?i)foobarPress Ctrl+C to endSSH Keys Processed = 19836091Total executiontime 5m3.547881075s-----BEGIN OPENSSH PRIVATE KEY-----b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZWQyNTUxOQAAACC5wtZF8fC9UVuUaENRuND8336Dm2kcgCz6aXdrAr3m7AAAAIijajSyo2o0sgAAAAtzc2gtAAAyNTUxOQAAACC5wtZF8fC9UVuUaENRuND8336Dm2kcgCz6aXdrAr3m7AAAAEBR5YgwA+F6mbfskfPDAzyjlCpXZdI2Df7YsMw2gDZQa7nC1kXx8L1RW5RoQ1G4aaaafoObaRyALPppd2sCvebsAAAAAAECAwQF-----END OPENSSH PRIVATE KEY-----ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILnC1kXx8L1RW5RoQ1G4aaaafoObaRyALPppd2sCvebsSSH Keys Processed = 27980128Total executiontime 7m8.214108871s-----BEGIN OPENSSH PRIVATE KEY-----b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZWQyNTUxOQAAACDmt8vcX6DgWkUak4D67PaVlASojh8PxGKvZX9Q0qL6IAAAAIgO97dqDve3agAAAAtzc2gtZWQyNTAAAAAAACDmt8vcX6DgWkUak4D67PaVlASojh8PxGKvZX9Q0qL6IAAAAEAVNWLWKspejduNdkMkipu/JgJVKTcgIYIazKCSWtUst+aaaaafoOBaRRqTgPrs9pWUBKiOHw/EYq9lf1DSovogAAAAAAECAwQF-----END OPENSSH PRIVATE KEY-----ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOaaaafoOBaRRqTgPrs9pWUBKiOHw/EYq9lf1DSovog
Find a public key whose SHA256 fingerprint starts with0000:
$ ./vanityssh --fingerprint --regex'^0000'global_user_input = ^0000Press Ctrl+C to endSSH Keys Processed = 7420830Total executiontime 46.479848625s-----BEGIN OPENSSH PRIVATE KEY-----b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZWQyNTUxOQAAACCDaz0XpXwr1lXkMe9d/XiYhEqoEo7xND+WfIi6Rcpc9QAAAIiSMeGukjHhrgAAAAtzc2gtZWQyNTUxOQAAACCDaz0XpXwr1lXkMe9d/XiYhEqoEo7xND+WfIi6Rcpc9QAAAEA2q7FROiORV1NCMmOFKpPuJC4PpkiqL8zOJKRjowbZ34NrPRelfCvWVeQx7139eJiESqgSjvE0P5Z8iLpFylz1AAAAAAECAwQF-----END OPENSSH PRIVATE KEY-----ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIINrPRelfCvWVeQx7139eJiESqgSjvE0P5Z8iLpFylz1SHA256:0000+RLM8XK4vFSKhEUKyvztCIFtR+Q7j04eKB3fA2c=