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Add a new helper print-cert-tbs-hash.sh to generate a TBSCertificate
hash from a given certificate. This is useful to generate a blacklist
key description used to forbid loading a specific certificate in a
keyring, or to invalidate a certificate provided by a PKCS#7 file.
This kind of hash formatting is required to populate the file pointed
out by CONFIG_SYSTEM_BLACKLIST_HASH_LIST, but only the kernel code was
available to understand how to effectively create such hash.
Cc: David Howells <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Eric Snowberg <[email protected]>
Signed-off-by: Mickaël Salaün <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jarkko Sakkinen <[email protected]>
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