Obfuscating intelligent data while preserving reserve values

1. A system comprising:

a memory; and

a processor in communication with the memory, the processor being configured to perform processes 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.

2. The system of claim 1 , wherein the process further comprises:

replacing, based on a determination that the obfuscated second string contains a reserve value, the obfuscated string with a replacement value based on the reserve value.

3. The system of claim 1 , wherein the process further comprises:

identifying a third sub-string with a calculated dependent value; and

recalculating the dependent value based upon the obfuscated second sub-string.

4. The system of claim 1 , wherein the identifying the two or more sub-strings further comprises:

identifying the reserve value in the string.

5. The system of claim 1 , wherein the identifying the two or more sub-strings further comprises:

receiving one or more rules for the identification of sub-strings; and

applying the rules to the string to identify the two or more sub-strings.

6. A 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.

7. The method of claim 6 further comprising:

replacing, based on a determination that the obfuscated second string contains a reserve value, the obfuscated string with a replacement value based on the reserve value.

8. The method of claim 6 further comprising:

identifying a third sub-string with a dependent value; and

recalculating the calculated dependent value based upon the obfuscated second sub-string.

9. The method of claim 6 , wherein the identifying the two or more sub-strings further comprises:

identifying the reserve value in the string.

10. The method of claim 6 , wherein the identifying the two or more sub-strings further comprises:

receiving one or more rules for the identification of sub-strings; and

applying the rules to the string to identify the two or more sub-strings.

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.

12. The computer program product of claim 11 , the method further comprising:

replacing, based on a determination that the obfuscated second string contains a reserve value, the obfuscated string with a replacement value based on the reserve value.

13. The computer program product of claim 11 , the method further comprising:

identifying a third sub-string with a calculated dependent value; and

recalculating the dependent value based upon the obfuscated second sub-string.

14. The computer program product of claim 11 , wherein the identifying the two or more sub-strings further comprises:

identifying the reserve value in the string.