OTP generation using a camouflaged key
US8572394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2010 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jun 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3228
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method is provided for generating a one-time passcode (OTP) from a user device. The method includes providing a passcode application and a cardstring defined by a provider account to the user device. The passcode application is configured to generate a passcode configured as a user OTP for the provider account, using the cardstring. The cardstring is defined by at least one key camouflaged with a personal identification number (PIN). The key may be camouflaged by modifying and encrypting the modified key under the PIN. The key may be configured as a symmetric key, a secret, a seed, and a controlled datum. The cardstring may be an EMV cardstring; and the key may be a UDKA or UDKB. The cardstring may be an OTP cardstring, and the key may be a secret configurable to generate one of a HOTP, a TOTP, and a counter-based OTP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.