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Eric Snowberg authored
Parse the X.509 Key Usage. The key usage extension defines the purpose of the key contained in the certificate. id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 } KeyUsage ::= BIT STRING { digitalSignature (0), contentCommitment (1), keyEncipherment (2), dataEncipherment (3), keyAgreement (4), keyCertSign (5), cRLSign (6), encipherOnly (7), decipherOnly (8) } If the keyCertSign or digitalSignature is set, store it in the public_key structure. Having the purpose of the key being stored during parsing, allows enforcement on the usage field in the future. This will be used in a follow on patch that requires knowing the certificate key usage type. Link: https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.3Signed-off-by:
Eric Snowberg <eric.snowberg@oracle.com> Reviewed-by:
Mimi Zohar <zohar@linux.ibm.com> Reviewed-by:
Jarkko Sakkinen <jarkko@kernel.org> Tested-by:
Mimi Zohar <zohar@linux.ibm.com> Signed-off-by:
Jarkko Sakkinen <jarkko@kernel.org>
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