The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2022
Filed:
Jul. 29, 2019
Sap SE, Walldorf, DE;
Florian Loch, Karslruhe, DE;
SAP SE, Walldorf, DE;
Abstract
Disclosed herein are system, method, and computer program product embodiments for propagating taint information for strings using metadata. Taint information for a string is encoded using taint ranges. When an operation is performed on the string, the operation and any additional taint information corresponding to the operation is encoded into a delta layer of the metadata. Rather than immediately obtaining taint information for a result string when the operation is performed on the string, the delta layer stores the taint information for the operation, and any subsequent operation, until it is needed. Once the taint information is needed, then the delta layers are collapsed into base layer taint information in order to resolve taint information for a result string.