SIMPLIFIED MULTI-FACTOR AUTHENTICATION

• US 20100138666A1
• Filed: 12/01/2008
• Published: 06/03/2010
• Est. Priority Date: 12/01/2008
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Sibley, Richard Paul, Adams, Neil Patrick, Singh, Ravi, Davis, Dinah Lea Marie
• Granted Patent: US 8,370,640 B2
• Time in Patent Office: Days
• US Class Current: 713/186
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/34 involving the use of external additional devices, e.g. dongles or smart cards
• CPC Class Codes: G06F 21/35 communicating wirelessly
• CPC Class Codes: G06Q 20/3226 Use of secure elements separate from M-devices
• CPC Class Codes: G06Q 20/40145 Biometric identity checks
• CPC Class Codes: G07F 7/0886 the card reader being portable for interacting with a POS or ECR in realizing a payment transaction
• CPC Class Codes: G07F 7/1091 Use of an encrypted form of the PIN
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 9/3231 Biological data, e.g. fingerprint, voice or retina network architectures or network communication protocols for supporting authentication of entities using biometrical features in a packet data network H04L63/0861
• CPC Class Codes: H04L 9/3271 using challenge-response
• CPC Class Codes: H04W 12/06 Authentication

Abstract

A reader element is associated with an identity verification element. The reader element has a biometric input device and is configured, through enrollment of a biometric element is used to encrypt a character sequence associated with the identity verification element. In a verification phase subsequent to the enrollment, a user may be spared a step of providing the character sequence by, instead, providing the biometric element. Responsive to receiving the biometric element, the reader element may decrypt the character sequence and provide the character sequence to the identity verification element.

Claims

1. A method of handling a factor of a multi-factor authentication sequence, said method comprising:

receiving a biometric candidate;

generating a cryptographic key from said biometric candidate;

decrypting a previously stored, encrypted character sequence associated with an identity verification element, wherein said decrypting employs said cryptographic key and results in a decrypted character sequence;

transmitting said decrypted character sequence to said identity verification element;

receiving, from said identity verification element, an indication of character sequence verification;

determining, from said indication, that said identity verification element has verified said decrypted character sequence; and

responsive to said determining, proceeding with said multi-factor authentication sequence.

2. The method of claim 1 wherein said biometric candidate comprises a candidate fingerprint.

3. The method of claim 1 wherein said identity verification element comprises a smart card.

4. The method of claim 3 wherein said character sequence comprises a personal identification number associated with said smart card.

5. The method of claim 1 wherein said proceeding with said multi-factor authentication sequence comprises:

extracting a biometric template from said identity verification element; and

determining that said biometric candidate matches said biometric template.

6. The method of claim 5 wherein said proceeding with said multi-factor authentication sequence further comprises:

receiving a random challenge from an associated device;

transmitting said random challenge to said identity verification element;

receiving a signed challenge from said identity verification element; and

transmitting said signed challenge to said associated device.

7. A smart card reader comprising:

a storage component interface for receiving a smart card for communication therewith;

a memory for storing an encrypted character sequence associated with said smart card;

a biometric input device; and

a processor adapted to;

receive a biometric candidate from said biometric input device;

generate a cryptographic key from said biometric candidate;

decrypt said encrypted character sequence, wherein said decrypting employs said cryptographic key and results in a decrypted character sequence;

transmit said decrypted character sequence to said smart card;

receive, from said smart card, an indication of character sequence verification;

determine, from said indication, that said smart card has verified said decrypted character sequence; and

responsive to said determining, proceed with said multi-factor authentication sequence.

8. The smart card reader of claim 7 wherein said biometric candidate comprises a candidate fingerprint.

9. The smart card reader of claim 7 wherein said character sequence comprises a personal identification number associated with said smart card.

10. The smart card reader of claim 7 wherein, to proceed with said multi-factor authentication sequence, said processor is further adapted to:

extract a biometric template from said identity verification element; and

determine that said biometric candidate matches said biometric template.

11. The smart card reader of claim 10 wherein, to proceed with said multi-factor authentication sequence, said processor is further adapted to:

receive a random challenge from an associated device;

transmit said random challenge to said identity verification element;

receive a signed challenge from said identity verification element; and

transmit said signed challenge to said associated device.

12. A computer readable medium containing computer-executable instructions that, when performed by a processor, cause said processor to:

receive a biometric candidate;

generate a cryptographic key from said biometric candidate;

decrypt a previously stored, encrypted character sequence associated with an identity verification element, wherein said decrypting employs said cryptographic key and results in a decrypted character sequence;

transmit said decrypted character sequence to said identity verification element;

receive, from said identity verification element, an indication of character sequence verification;

determine, from said indication, that said identity verification element has verified said decrypted character sequence; and

responsive to said determining, proceed with a multi-factor authentication sequence.

13. The computer readable medium of claim 12 wherein said biometric candidate comprises a candidate fingerprint.

14. The computer readable medium of claim 12 said identity verification element comprises a smart card.

15. The computer readable medium of claim 14 wherein said character sequence comprises a personal identification number associated with said smart card.

16. The computer readable medium of claim 12 wherein, to proceed with said multi-factor authentication sequence, said instructions further cause said processor to:

extract a biometric template from said identity verification element; and

determine that said biometric candidate matches said biometric template.

17. The computer readable medium of claim 16 wherein, to further proceed with said multi-factor authentication sequence, said instructions further cause said processor to:

receive a random challenge from an associated device;

transmit said random challenge to said identity verification element;

receive a signed challenge from said identity verification element; and

transmit said signed challenge to said associated device.