New branch on bios-crypto: delegation

Martin Langhoff martin.langhoff at
Fri May 8 16:13:52 EDT 2009

On Fri, May 8, 2009 at 5:51 PM, Martin Langhoff
<martin.langhoff at> wrote:
> The work I am doing is following the spec on the wiki and the examples
> in the bitfrost code. You might want to give brief review at

With a bit more work today, visible here

things seem to be working quite well:

 - it generates non-delegated leases with 'sig02' signatures

 - it generates delegation signatures, can extend a delegation chain
piece per piece

 - can greate leases signed with a delegated key (following a chain of

 -> all of the above leases test well with Scott's bitfrost.leases code too :-)

 - the shell commands have quite a few more options now

 - the scripts work correctly regardless of $CWD

 - we have an rpm that installs all the executables to
/usr/libexec/olpc-bios-crypto and symlinks all the end-user usable
binaries with an 'obc-' prefix in /usr/bin, so obc-<tab><tab> will
show you the relevant commands

 - `make install` from a src tree has the same effect as the rpm installation

Current RPM

On the XS

  yum  --enablerepo=olpcxs-testing olpc-bios-crypto


 martin.langhoff at
 martin at -- School Server Architect
 - ask interesting questions
 - don't get distracted with shiny stuff  - working code first

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