Yes, though primarily forge.mil as a patched OpenSSH source. It was based on an original PKCS#11 support [0] [1]. An old version of the patch is pretty small

Yes, though primarily forge.mil as a patched OpenSSH source. It was based on an original PKCS#11 support [0] [1]. An old version of the patch is pretty small and available here [2]. Additionally, I wrote an SSH Agent (in JavaScript, for ChromeOS, but works on any platform) that has these modifications [3]. I use this more frequently these days (via Tcl [4]). [0] https://marc.info/?l=openssh-bugs&m=119214228626872 https://marc.info/?l=openssh-bugs&m=119214228626872 [1] https://rkeene.org/viewer/archive/openssh/openssh-4.4p1pkcs11-0.17.patch.htm?listing=long https://rkeene.org/viewer/archive/openssh/openssh-4.4p1pkcs1... [2] https://rkeene.org/viewer/archive/openssh/openssh-4.5p1-pkcs11forward.diff.htm?listing=long https://rkeene.org/viewer/archive/openssh/openssh-4.5p1-pkcs... [3] https://cackey.rkeene.org/fossil/artifact/0d0e90bbfdee672c https://cackey.rkeene.org/fossil/artifact/0d0e90bbfdee672c [4] https://cackey.rkeene.org/fossil/artifact/183583332c474aa9 https://cackey.rkeene.org/fossil/artifact/183583332c474aa9