On Thu, Oct 03, 2019 at 09:30:31PM +0200, Leah Neukirchen wrote:

Finn O'Leary <finnoleary@inventati.org> writes:

Hi, I remember that someone had recovered some ancient /etc/passwd files
and had decrypted(?) them, and I remember reading that either ken or
dmr's
password was something interesting like './,..,/' (it was entirely
punctuation characters, was around three different characters in
total, and
was pretty damn short). I've tried to find this since, as a friend was
interested in it, and I cannot for the life of me find it!

I did this once, but I never managed to crack all of them.
It was bwk who used /.,/.,

My findings (from https://github.com/dspinellis/unix-history-repo/blob/BSD-3-Snapshot-Development/etc/passwd):

gfVwhuAMF0Trw:dmac
Pb1AmSpsVPG0Y:uio
ymVglQZjbWYDE:/.,/.,
c8UdIntIZCUIA:bourne
AAZk9Aj5/Ue0E:foobar
E9i8fWghn1p/I:apr1744
IIVxQSvq1V9R2:axolotl
9EZLtSYjeEABE:network
P0CHBwE/mB51k:whatnot
Nc3IkFJyW2u7E:...hello
olqH1vDqH38aw:sacristy
9ULn5cWTc0b9E:sherril.
N33.MCNcTh5Qw:uucpuucp
FH83PFo4z55cU:wendy!!!
OVCPatZ8RFmFY:cowperso
X.ZNnZrciWauE:5%ghj
IL2bmGECQJgbk:pdq;dq
4BkcEieEtjWXI:jilland1
8PYh/dUBQT9Ss:theik!!!
lj1vXnxTAPnDc:sn74193n

But I never managed to crack ken's password with the hash
ZghOT0eRm4U9s, and I think I enumerated the whole
8 letter lowercase + special symbols key space.

The uncracked ones are:

ozalp:m5syt3.lB5LAE:40:10:& Babaoglu,4156423806:/usr/ozalp:/bin/csh

m5syt3.lB5LAE:12ucdort

hpk:9ycwM8mmmcp4Q:9:10:Howard Katseff,2019495337:/usr/staff/hpk:/bin/csh
tbl:cBWEbG59spEmM:10:10:Tom London,2019492006:/usr/staff/tbl
ken:ZghOT0eRm4U9s:52:10:& Thompson:/usr/staff/ken
fabry:d9B17PTU2RTlM:305:10:Bob &,4156422714:/usr/staff/fabry:/bin/csh

I pointed my FreeBSD build machine at the password file, but it didn't
manage many guesses a second (55000 per core with 48 cores, using john). 

I asked a friend to point their GPU rig at the password file. It is a
MSI Graphics Card R9 290X and is doing about 255MHashes/Second using
hashcat. He is going to do the alphanumeric space and then call it a
day.

    "for hashcat, 80s DES crypt is -m 1500"

- [tj]