On Tue, 30 Jun 2015, shawn wilson wrote: > % cat ext_rsa.pub| sed -r 's/.*(AAAA[^ ]+).*/\1/' | sha256sum > > ~/.ssh swlap1 > d4bf8b06f2d9d9af7a11583a5367205ed310a84f0dee68d062e2ddca1e85c3ff - > % ssh-keygen -lf ext_rsa.pub > > ~/.ssh swlap1 > 8192 SHA256:FgrfxmdjTM/j4wwRa7nVdPSUaJdqHYMJtJ6aciPl9ug swilson@swlap1 (RSA) > > Why do those differ and how would i generate the equivalent (mainly > just curious)? I've also tried base64 and a few other substitutions at > the end and I can't get them to match (probably would save time to > just look at the code, but...). it's a hash over the decoded contents of the second field of the public key line. In python: import base64 import hashlib keytext=open("/tmp/r.pub").read() keydata=keytext.split()[1] decoded=base64.b64decode(keydata) rawhash=hashlib.sha256(decoded).digest() texthash=base64.b64encode(rawhash) print texthash _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev