David du Colombier 7ed1f0cb5b ssh-agent: add rsa-sha2-256 and rsa-sha2-512 support
Modern OpenSSH servers reject ssh-rsa (SHA-1) signatures.
Import SHA-2 support to libsec from Plan 9, teach factotum
to sign with SHA256 and SHA512, and handle the
SSH_AGENT_RSA_SHA2_256/512 flags in ssh-agent.

Strip role and hash from factotum RSA key lookups so a
single key can serve both sign and decrypt operations.

Increase _attrfmt buffer from 1024 to 8192 so large RSA
key attributes are not truncated during factotum ctl reads.

The following files were imported from Plan 9 :

 - src/libsec/port/sha2block64.c
 - src/libsec/port/sha2block128.c
 - src/libsec/port/sha2_64.c
 - src/libsec/port/sha2_128.c
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This is a port of many Plan 9 libraries and programs to Unix.

Installation

To install, run ./INSTALL. It builds mk and then uses mk to run the rest of the installation.

For more details, see install(1), at install.txt in this directory and at https://9fans.github.io/plan9port/man/man1/install.html.

Documentation

See https://9fans.github.io/plan9port/man/ for more documentation. (Documentation is also in this tree, but you need to run a successful install first. After that, "9 man 1 intro".)

Intro(1) contains a list of man pages that describe new features or differences from Plan 9.

Helping out

If you'd like to help out, great!

If you port this code to other architectures, please share your changes so others can benefit.

Git

You can use Git to keep your local copy up-to-date as we make changes and fix bugs. See the git(1) man page here ("9 man git") for details on using Git.

Status

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