chromeos-base/infineon-firmware-updater/files/change_default_password.patch

Change the default password used for taking ownership when updating.

--- a/TPMFactoryUpd/CommandFlow_Tpm12ClearOwnership.c
+++ b/TPMFactoryUpd/CommandFlow_Tpm12ClearOwnership.c
@@ -48,12 +48,12 @@ CommandFlow_Tpm12ClearOwnership_Execute(
 	{
 		// TPM operation mode
 		TPM_STATE sTpmState = {{0}};
-		// SHA1 Hash of an owner password 1...8
+		// SHA1 Hash of the default owner password
 		TPM_AUTHDATA ownerAuthData = {{
-				0x7c, 0x22, 0x2f, 0xb2, 0x92,
-				0x7d, 0x82, 0x8a, 0xf2, 0x2f,
-				0x59, 0x21, 0x34, 0xe8, 0x93,
-				0x24, 0x80, 0x63, 0x7c, 0x0d
+				0x67, 0x68, 0x03, 0x3e, 0x21,
+				0x64, 0x68, 0x24, 0x7b, 0xd0,
+				0x31, 0xa0, 0xa2, 0xd9, 0x87,
+				0x6d, 0x79, 0x81, 0x8f, 0x8f
 			}
 		};
 
@@ -113,7 +113,7 @@ CommandFlow_Tpm12ClearOwnership_Execute(
 			break;
 		}
 
-		// Check if owner authorization password is 1...8 as expected
+		// Check if owner authorization password is the default value as expected
 		unReturnValue = FirmwareUpdate_CheckOwnerAuthorization(ownerAuthData.authdata);
 		if (RC_SUCCESS != unReturnValue)
 		{
@@ -121,7 +121,7 @@ CommandFlow_Tpm12ClearOwnership_Execute(
 			if (TPM_AUTHFAIL == (unReturnValue ^ RC_TPM_MASK))
 			{
 				unReturnValue = RC_E_TPM12_INVALID_OWNERAUTH;
-				ERROR_STORE(unReturnValue, L"The owner password is not 1...8. Owner authentication check failed.");
+				ERROR_STORE(unReturnValue, L"The owner password is not default. Owner authentication check failed.");
 			}
 			break;
 		}
--- a/TPMFactoryUpd/CommandFlow_TpmUpdate.c
+++ b/TPMFactoryUpd/CommandFlow_TpmUpdate.c
@@ -43,12 +43,13 @@
 
 #define TPM_FACTORY_UPD_RUNDATA_FILE L"TPMFactoryUpd_RunData.txt"
 
-// Exemplary SHA-1 hash value of ASCII string '12345678' (assumes that TPM Ownership has been taken with this string as TPM Owner authentication)
+// Exemplary SHA-1 hash value of 20 zero bytes (assumes that TPM Ownership has been taken with this string as TPM Owner authentication)
 
 TPM_AUTHDATA s_ownerAuthData = {{
-		0x7c, 0x22, 0x2f, 0xb2, 0x92, 0x7d, 0x82, 0x8a,
-		0xf2, 0x2f, 0x59, 0x21, 0x34, 0xe8, 0x93, 0x24,
-		0x80, 0x63, 0x7c, 0x0d
+		0x67, 0x68, 0x03, 0x3e, 0x21,
+		0x64, 0x68, 0x24, 0x7b, 0xd0,
+		0x31, 0xa0, 0xa2, 0xd9, 0x87,
+		0x6d, 0x79, 0x81, 0x8f, 0x8f
 	}
 };