IN UINTN DataLength\r
);\r
\r
+/**\r
+ This function receives a PKCS7 formatted signature, and then verifies that\r
+ the specified Enhanced or Extended Key Usages (EKU's) are present in the end-entity\r
+ leaf signing certificate.\r
+ Note that this function does not validate the certificate chain.\r
+\r
+ Applications for custom EKU's are quite flexible. For example, a policy EKU\r
+ may be present in an Issuing Certificate Authority (CA), and any sub-ordinate\r
+ certificate issued might also contain this EKU, thus constraining the\r
+ sub-ordinate certificate. Other applications might allow a certificate\r
+ embedded in a device to specify that other Object Identifiers (OIDs) are\r
+ present which contains binary data specifying custom capabilities that\r
+ the device is able to do.\r
+\r
+ @param[in] Pkcs7Signature The PKCS#7 signed information content block. An array\r
+ containing the content block with both the signature,\r
+ the signer's certificate, and any necessary intermediate\r
+ certificates.\r
+ @param[in] Pkcs7SignatureSize Number of bytes in Pkcs7Signature.\r
+ @param[in] RequiredEKUs Array of null-terminated strings listing OIDs of\r
+ required EKUs that must be present in the signature.\r
+ @param[in] RequiredEKUsSize Number of elements in the RequiredEKUs string array.\r
+ @param[in] RequireAllPresent If this is TRUE, then all of the specified EKU's\r
+ must be present in the leaf signer. If it is\r
+ FALSE, then we will succeed if we find any\r
+ of the specified EKU's.\r
+\r
+ @retval EFI_SUCCESS The required EKUs were found in the signature.\r
+ @retval EFI_INVALID_PARAMETER A parameter was invalid.\r
+ @retval EFI_NOT_FOUND One or more EKU's were not found in the signature.\r
+\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+VerifyEKUsInPkcs7Signature (\r
+ IN CONST UINT8 *Pkcs7Signature,\r
+ IN CONST UINT32 SignatureSize,\r
+ IN CONST CHAR8 *RequiredEKUs[],\r
+ IN CONST UINT32 RequiredEKUsSize,\r
+ IN BOOLEAN RequireAllPresent\r
+ );\r
+\r
/**\r
Extracts the attached content from a PKCS#7 signed data if existed. The input signed\r
data could be wrapped in a ContentInfo structure.\r