Patent ID: 11954213
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processors to perform a method, the method comprising:
receiving a string of characters;
identifying two or more sub-strings of the string;
comparing the two or more sub-strings to one or more reserve values from a database of reserve values;
identifying a first sub-string of the two or more sub-strings that contains one of the one or more reserve values;
identifying a second sub-string of the two or more sub-strings with a sensitive value;
obfuscating the second sub-string and not obfuscating the first sub-string;
checking the obfuscated second string for one of the one or more reserve values; and
obfuscating, based on a determination that the obfuscated second string contains one of the one or more reserve values, the obfuscated second string a second time.