diff --git a/headers/private/package/ChecksumAccessors.h b/headers/private/package/ChecksumAccessors.h
index 8872cd5606..ba95aa5d01 100644
--- a/headers/private/package/ChecksumAccessors.h
+++ b/headers/private/package/ChecksumAccessors.h
@@ -49,6 +49,17 @@ private:
 };
 
 
+class StringChecksumAccessor : public ChecksumAccessor {
+public:
+								StringChecksumAccessor(const BString& checksum);
+
+	virtual	status_t			GetChecksum(BString& _checksum) const;
+
+private:
+			BString				fChecksum;
+};
+
+
 }	// namespace BPrivate
 
 }	// namespace BPackageKit
diff --git a/src/kits/package/ChecksumAccessors.cpp b/src/kits/package/ChecksumAccessors.cpp
index 8ec09c9e90..4eca081e7c 100644
--- a/src/kits/package/ChecksumAccessors.cpp
+++ b/src/kits/package/ChecksumAccessors.cpp
@@ -1,9 +1,10 @@
 /*
- * Copyright 2011, Haiku, Inc. All Rights Reserved.
+ * Copyright 2011-2013, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
  *		Oliver Tappe <zooey@hirschkaefer.de>
+ *		Ingo Weinhold <ingo_weinhold@gmx.de>
  */
 
 
@@ -24,11 +25,17 @@ namespace BPrivate {
 	(nibble >= 10 ? 'a' + nibble - 10 : '0' + nibble)
 
 
+// #pragma mark - ChecksumAccessor
+
+
 ChecksumAccessor::~ChecksumAccessor()
 {
 }
 
 
+// #pragma mark - ChecksumFileChecksumAccessor
+
+
 ChecksumFileChecksumAccessor::ChecksumFileChecksumAccessor(
 	const BEntry& checksumFileEntry)
 	:
@@ -62,6 +69,9 @@ ChecksumFileChecksumAccessor::GetChecksum(BString& checksum) const
 }
 
 
+// #pragma mark - GeneralFileChecksumAccessor
+
+
 GeneralFileChecksumAccessor::GeneralFileChecksumAccessor(
 	const BEntry& fileEntry, bool skipMissingFile)
 	:
@@ -127,6 +137,25 @@ GeneralFileChecksumAccessor::GetChecksum(BString& checksum) const
 }
 
 
+// #pragma mark - StringChecksumAccessor
+
+
+StringChecksumAccessor::StringChecksumAccessor(const BString& checksum)
+	:
+	fChecksum(checksum)
+{
+}
+
+
+status_t
+StringChecksumAccessor::GetChecksum(BString& _checksum) const
+{
+	_checksum = fChecksum;
+	return B_OK;
+}
+
+
+
 }	// namespace BPrivate
 
 }	// namespace BPackageKit