Sensitive data aliasing

• US 9,875,376 B1
• Filed: 09/21/2016
• Issued: 01/23/2018
• Est. Priority Date: 01/27/2006
• Status: Expired due to Fees

• Current Assignee: Appriss Retail Information LLC
• Original Assignee: Verisk Crime Analytics, Inc.
• Inventors: Duhaime, David A., Duhaime, Brad J.
• Primary Examiner(s): Jeudy, Josnel
• Application Number:
  US15/271,970
• Time in Patent Office: 489 Days
• CPC Class Codes: G06F 16/122 using management policies backup systems G06F11/1446; file migration policies for HSM systems G06F16/185
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/602 Providing cryptographic facilities or services
• CPC Class Codes: G06F 21/606 by securing the transmission between two devices or processes
• CPC Class Codes: G06F 21/6227 where protection concerns the structure of data, e.g. records, types, queries
• CPC Class Codes: G06F 21/6245 Protecting personal data, e.g. for financial or medical purposes
• CPC Class Codes: G06F 21/6254 by anonymising data, e.g. decorrelating personal data from the owner's identification
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: G06Q 20/356 Aspects of software for card payments
• CPC Class Codes: G06Q 20/383 Anonymous user system
• CPC Class Codes: H04L 9/0625 with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
• CPC Class Codes: H04L 9/0631 Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
• CPC Class Codes: H04L 9/0643 Hash functions, e.g. MD5, SHA, HMAC or f9 MAC

Abstract

Database management and security is implemented in a variety of embodiments. In one such embodiment, data sets containing sensitive data elements are analyzed using aliases representing sensitive data elements. In another embodiment, the sensitive data elements are stored in an encrypted form for use from a secure access, while the alias is available for standard access.

Claims

1. A computer-implemented method carried out to compensate for impact on processing of alias data, wherein the impact is caused by processing large amounts of data relating to sensitive data elements associated with the alias data, comprising:

using at least one computer processor to;

generate aliases for the sensitive data elements;

generate an association between the aliases and the sensitive data elements;

create a first database with a first plurality of records;

assign the sensitive data elements to a first data field of the first plurality of records;

create a second database with a second plurality of records;

assign the aliases to a second data field from the second plurality of records; and

allowing access, by a set of authorized users through the at least one computer processor, to the first database for processing of the sensitive data elements independently from the second database, and therein permitting, for a set of standard users, qualified access to the second database by using the aliases in place of the sensitive data elements, wherein at least some of the standard users are not included in the set of authorized users.

2. The method of claim 1, wherein access to each of the databases is controlled separately.

3. The method of claim 1, further comprising using biometric information as part of determining, by the at least one computer processor, that a user is in the authorized set of users.

4. The method of claim 1, further comprising providing, by the at least one computer processor and in response to determining that a first user is in the standard set of users, the aliases using a standard application running on a different computer.

5. The method of claim 1, wherein the sensitive data elements are credit card numbers and the method further comprises:

identifying a credit card number corresponding to an alias selected by an authorized user; and

providing the identified credit card number to said authorized user through a circuit interface.

6. The method of claim 1, further including:

decrypting encrypted sensitive data elements using a first cryptographic algorithm and subsequently encrypting the sensitive data elements using a second cryptographic algorithm that is different from the first cryptographic algorithm; and

maintaining the association between the aliases and the sensitive data elements as encrypted using the second cryptographic algorithm.

7. The method of claim 1, further including creating a log of activities by the authorized users and the standard users.

8. The method of claim 1, further including formatting an encrypted version of sensitive data elements to represent displayable characters.

9. The method of claim 1, further including appending a portion of a particular sensitive data element to an alias associated with the particular sensitive data element.

10. An apparatus for improved processing of alias data by reducing an impact caused by processing of large amounts of data relating to sensitive data elements associated with the alias data, the apparatus comprising:

at least one computer processor including a non-transitory machine readable medium storing instructions executable by the processor and configured to;

generate aliases for the sensitive data elements;

generate an association between the aliases and the sensitive data elements;

create a first database with a first plurality of records;

assign the sensitive data elements to a first data field of the first plurality of records;

create a second database with a second plurality of records;

assign the aliases to a second data field from the second plurality of records;

allow access, by a set of authorized users, to the first database for processing of the sensitive data elements independently from the second database; and

permit, for a set of standard users, qualified access to the second database by using the aliases in place of the sensitive data elements, where at least some of the standard users are not included in the set of authorized users.

11. The apparatus of claim 10, wherein the at least one computer processor is further configured to separately control access to each of the databases.

12. The apparatus of claim 10, wherein the at least one computer processor is further configured to provide, in response to determining that the first user is in the standard set of users, the aliases using a standard application running on a different computer.

13. The apparatus of claim 10, wherein the at least one computer processor is further configured to:

identify a credit card number corresponding to an alias selected by an authorized user; and

provide the identified credit card number to said authorized user through a circuit interface.

14. The apparatus of claim 10, wherein the sensitive data elements are credit card numbers and the at least one computer processor is further configured to:

decrypt encrypted sensitive data elements using a first cryptographic algorithm and subsequently encrypt the sensitive data elements using a second cryptographic algorithm that is different from the first cryptographic algorithm; and

maintain the association between the aliases and the sensitive data elements as encrypted using the second cryptographic algorithm.

15. The apparatus of claim 14, wherein the computer processor is further configured to format encrypted versions of the sensitive data elements to represent displayable characters.

16. The apparatus of claim 14, wherein the at least one computer processor is further configured to append a portion of a particular sensitive data element to an alias associated with the particular sensitive data element.

17. The apparatus claim 13, wherein the at least one computer processor is further configured to create a log of activities by the authorized users and the standard users.

18. The apparatus of claim 10, wherein the at least one computer processor is further configured to append a portion of a particular sensitive data element to an alias associated with the particular sensitive data element.

19. The apparatus of claim 18, wherein the portion identifies a financial service provider.