Patents Assigned to Lionstone Capital Corporation
  • Publication number: 20120079281
    Abstract: In some embodiments, a method includes generating a round key for each round from one or more rounds for encrypting input data and partitioning the input data into one or more data blocks for each round. A block key is generated for each data block and each data block is encrypted using the round key, the block key and the data block as inputs to a mathematic operation to produce a cipher text. A number of rounds is variable, at least one of a size of the round key or a number of data blocks are variable for each round, or at least one of a size of each data block, a size of the block key for each data block, the mathematic operation for each data block, or a size of the cipher text for each data block are variable for each data block within each round.
    Type: Application
    Filed: June 28, 2011
    Publication date: March 29, 2012
    Applicant: Lionstone Capital Corporation
    Inventors: David Lowenstein, Risu Na
  • Publication number: 20120079282
    Abstract: A system comprises an input obfuscation module and an input encryption module coupled to the input obfuscation module. The input obfuscation and encryption modules are configured to define a first end of a secure channel for exchanging information with a secure software application module. The system further comprises an output de-obfuscation and decryption module coupled to the input obfuscation and encryption modules and is configured to define a second end of the secure channel, the secure channel having no seams between the first end of the secure channel and the second end of the secure channel. The system further comprises an output de-obfuscation module coupled to the output decryption module.
    Type: Application
    Filed: June 28, 2011
    Publication date: March 29, 2012
    Applicant: Lionstone Capital Corporation
    Inventors: David Lowenstein, Risu Na