[langsec-discuss] Breaking X.509 cert validation with frankencerts

Andrew munin at mimisbrunnr.net
Sun Apr 6 18:30:14 UTC 2014

The observation in this paper seems to be a key idea behind a new DARPA program, “Mining and Understanding Software Enclaves” 


The proposers day program slides make for some interesting reading after this paper! 

On Apr 6, 2014, at 2:14 PM, Will Sargent <will.sargent at gmail.com> wrote:

> It turns out that X.509 is sufficiently complex that you can fuzz certificates by stitching together seeds into a "frankencert" and use them to find holes in TLS implementations.  They find 208 differences in between implementations, including some nasty ones in MatrixSSL and GnuTLS.
> https://www.cs.utexas.edu/~shmat/shmat_oak14.pdf
> https://github.com/sumanj/frankencert
> Will.
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