Patents by Inventor Ramesh Nallamothu

Ramesh Nallamothu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD, APPARATUS, AND COMPUTER-READABLE MEDIUM FOR FORMAT PRESERVING ENCRYPTION OF A NUMERICAL VALUE
    Publication number: 20220130282
    Abstract: A system, method and computer-readable medium format-preserving encryption of a numerical value, including storing a binary numerical value, the binary numerical value comprising a plurality of binary bits, dividing the plurality of binary bits into a plurality of bit groups and storing the plurality of bit groups in a plurality of bytes, encrypting each byte in the plurality of bytes using a radix value corresponding to a quantity of binary bits in a bit group corresponding to that byte to generate a plurality of ciphertext bytes, and combining a quantity of least-significant bits from each ciphertext byte in the plurality of ciphertext bytes to generate a binary ciphertext value, the quantity of least-significant bits combined from each ciphertext byte corresponding to the radix value used to generate that ciphertext byte.
    Type: Application
    Filed: January 10, 2022
    Publication date: April 28, 2022
    Inventors: Igor BALABINE, Rajagopal GUDURU, Ramesh NALLAMOTHU
  • Method, apparatus, and computer-readable medium for format preserving encryption of a numerical value
    Patent number: 11222554
    Abstract: A system, method and computer-readable medium format-preserving encryption of a numerical value, including storing a binary numerical value, the binary numerical value comprising a plurality of binary bits, dividing the plurality of binary bits into a plurality of bit groups and storing the plurality of bit groups in a plurality of bytes, encrypting each byte in the plurality of bytes using a radix value corresponding to a quantity of binary bits in a bit group corresponding to that byte to generate a plurality of ciphertext bytes, and combining a quantity of least-significant bits from each ciphertext byte in the plurality of ciphertext bytes to generate a binary ciphertext value, the quantity of least-significant bits combined from each ciphertext byte corresponding to the radix value used to generate that ciphertext byte.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: January 11, 2022
    Assignee: INFORMATICA LLC
    Inventors: Igor Balabine, Rajagopal Guduru, Ramesh Nallamothu
  • METHOD, APPARATUS, AND COMPUTER-READABLE MEDIUM FOR FORMAT PRESERVING ENCRYPTION OF A NUMERICAL VALUE
    Publication number: 20210049935
    Abstract: A system, method and computer-readable medium format-preserving encryption of a numerical value, including storing a binary numerical value, the binary numerical value comprising a plurality of binary bits, dividing the plurality of binary bits into a plurality of bit groups and storing the plurality of bit groups in a plurality of bytes, encrypting each byte in the plurality of bytes using a radix value corresponding to a quantity of binary bits in a bit group corresponding to that byte to generate a plurality of ciphertext bytes, and combining a quantity of least-significant bits from each ciphertext byte in the plurality of ciphertext bytes to generate a binary ciphertext value, the quantity of least-significant bits combined from each ciphertext byte corresponding to the radix value used to generate that ciphertext byte.
    Type: Application
    Filed: August 16, 2019
    Publication date: February 18, 2021
    Inventors: Igor Balabine, Rajagopal Guduru, Ramesh Nallamothu