Patent application number | Description | Published |
20130185780 | COMPUTER IMPLEMENTED METHOD AND SYSTEM FOR GENERATING A ONE TIME PASSWORD - This technology provides methods, non-transitory computer readable medium and apparatuses that generate a OneTime Password (OTP) such that no hardware token is used. The technology uses some functions and parameters generated and transmitted to the client machine, by the server. The server generates a token for each session, cyclic groups G | 07-18-2013 |
20130259294 | METHOD, SYSTEM, AND COMPUTER-READABLE MEDIUM FOR EMBEDDING AND EXTRACTING A WATERMARK IN A VIDEO - The present invention relates to a computer-implemented method, system and computer readable medium for embedding a watermark into a video and extracting a watermark from the original or copy of the watermarked video. The method comprises converting a video frame from RGB color space to YUV color space. Divide a chrominance component into plurality of blocks. Select plurality of blocks based on size of watermark. Associate a pixel in the watermark with selected plurality of blocks. Embed the watermark corresponding to selected plurality of blocks wherein embedding comprises replacing a first pixel value of the block with maximum value of first column of the block if binary value of the corresponding watermark pixel is one or else replace with minimum value. Combine Y component and chrominance components resulting processed YUV video frame and convert it to RGB video frame. Extract the watermark substantially in a reverse process. | 10-03-2013 |
20140075202 | METHOD AND SYSTEM FOR SECURELY ACCESSING DIFFERENT SERVICES BASED ON SINGLE SIGN ON - An embodiment for securely accessing services of a service provider based on single sign on. The user device is authenticated by an authentication server if the computed hash of the first random number r is same as the received hash of the first random number r sent by a user device. Thereafter, the second random number y, the user id and an element Q are encrypted using a service provider password and send to the service provider. The user device computes a first discrete exponential function Z using the element Q and the second random number y and sends along with the user id to the service provider. The service provider computes a second discrete exponential function Z′ using the element Q and the second random number y received from the authentication server and provides the user device access to the services if Z is equal to Z′. | 03-13-2014 |
20140122900 | PROVIDING SEARCHING OVER ENCRYPTED KEYWORDS IN A DATABASE - The present invention relates to a computer-implemented method, system and computer readable medium for providing a searching over encrypted keywords in a database. The method comprises the steps of generating at least one keyword, generating a plurality of different encrypted keywords corresponding to said keyword, storing said at least one encrypted keyword in said database; generating a plurality of different trapdoors for said keyword, verifying said plurality of different trapdoors with said plurality of different encrypted keywords corresponding to said keyword and determining said keyword if said plurality of different trapdoors match with one said encrypted keyword corresponding to said keyword else determining said keyword is not found. | 05-01-2014 |