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-rw-r--r--offapi/com/sun/star/security/XCertificate.idl5
1 files changed, 4 insertions, 1 deletions
diff --git a/offapi/com/sun/star/security/XCertificate.idl b/offapi/com/sun/star/security/XCertificate.idl
index 8a5256971acc..22f7c6a4a1be 100644
--- a/offapi/com/sun/star/security/XCertificate.idl
+++ b/offapi/com/sun/star/security/XCertificate.idl
@@ -114,7 +114,10 @@ interface XCertificate : com::sun::star::uno::XInterface
XCertificateExtension findCertificateExtension( [in]sequence< byte > oid ) ;
/**
- * get the certificate usage
+ * get the certificate usage. The return value is a set of bits, as defined in RFC3280 for the
+ * KeyUsage BIT STRING. Note the bit and byte order used in ASN.1, so for instance the bit
+ * dataEncipherment in KeyUsage, "bit 3", corresponds to CERT_DATA_ENCIPHERMENT_KEY_USAGE in
+ * Win32 and KU_DATA_ENCIPHERMENT in NSS, both with value 0x10.
*/
long getCertificateUsage();
} ;