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SubjectRe: [PATCH 2/3] binfmt_elf: Verify signature of signed elf binary
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On Tue, 2013-01-15 at 16:34 -0500, Vivek Goyal wrote:
> If a binary is signed, verify its signature. If signature is not valid, do
> not allow execution. If binary is not signed, execution is allowed
> unconditionally.

Basically you're building the policy into the executable. Anyone can
rebuild the executable and, without signing it, install/replace an
existing one. How is this safe? The signature verification policy
needs to be defined independently of the executable.

Mimi



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