Patents by Inventor Dmitri PECHKIN

Dmitri PECHKIN 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).

  • Patent number: 10348502
    Abstract: Systems, methods, and software can be used to encrypt and decrypt data. In some aspects, a first primary secret key based on a primary ephemeral key pair and a primary master public key is generated by a primary data service application on an electronic device. A first primary ciphertext is generated by encrypting a first portion of the data using the first primary secret key. A second primary secret key is generated based on the first primary secret key. The first primary secret key is deleted. The first primary ciphertext is sent from the primary data service application to a secondary data service application. A first encrypted text is received from the secondary data service application. The first encrypted text is generated by encrypting the first primary ciphertext.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 9, 2019
    Assignees: BlackBerry Limited, 2236008 ONTARIO INC.
    Inventors: Roger Paul Bowman, Dmitri Pechkin, David Hughston Rodrigue Sarrazin, Timothy Lee Segato
  • Patent number: 10341102
    Abstract: Systems, methods, and software can be used to encrypt and decrypt data. In some aspects, a decryption request to decrypt the encrypted data is received from an application on an electronic device. A first secret key from a shared secret is generated. The shared secret is generated based on a master private key and an ephemeral public key associated with the encrypted data. A first encrypted secret key is generated using the first secret key and a context key. The context key is generated based on the master private key. A first portion of the encrypted data is decrypted using the first secret key. A second secret key is generated from the first secret key. The first secret key is deleted. At least a segment of the decrypted first portion of the encrypted data is sent to the application.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 2, 2019
    Assignee: BlackBerry Limited
    Inventors: Roger Paul Bowman, Dmitri Pechkin
  • Publication number: 20180069699
    Abstract: Systems, methods, and software can be used to encrypt and decrypt data. In some aspects, a decryption request to decrypt the encrypted data is received from an application on an electronic device. A first secret key from a shared secret is generated. The shared secret is generated based on a master private key and an ephemeral public key associated with the encrypted data. A first encrypted secret key is generated using the first secret key and a context key. The context key is generated based on the master private key. A first portion of the encrypted data is decrypted using the first secret key. A second secret key is generated from the first secret key. The first secret key is deleted. At least a segment of the decrypted first portion of the encrypted data is sent to the application.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 8, 2018
    Applicant: BlackBerry Limited
    Inventors: Roger Paul BOWMAN, Dmitri PECHKIN
  • Publication number: 20180069695
    Abstract: Systems, methods, and software can be used to encrypt and decrypt data. In some aspects, a first primary secret key based on a primary ephemeral key pair and a primary master public key is generated by a primary data service application on an electronic device. A first primary ciphertext is generated by encrypting a first portion of the data using the first primary secret key. A second primary secret key is generated based on the first primary secret key. The first primary secret key is deleted. The first primary ciphertext is sent from the primary data service application to a secondary data service application. A first encrypted text is received from the secondary data service application. The first encrypted text is generated by encrypting the first primary ciphertext.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 8, 2018
    Applicants: BlackBerry Limited, 2236008 Ontario Inc.
    Inventors: Roger Paul BOWMAN, Dmitri PECHKIN, David Hughston Rodrigue SARRAZIN, Timothy Lee SEGATO