×

KEY TRANSPORT IN AUTHENTICATION OR CRYPTOGRAPHY

  • US 20100169645A1
  • Filed: 10/22/2009
  • Published: 07/01/2010
  • Est. Priority Date: 12/30/2008
  • Status: Active Grant
First Claim
Patent Images

1. A computer-implemented method comprising:

  • selecting a plaintext message to be authenticated and encrypted;

    selecting an associated data to be authenticated and transmitted, but not encrypted;

    creating and storing a data key to encrypt the plaintext message in a uniformly random or pseudorandom manner;

    creating and storing a ciphertext message, wherein the ciphertext message is at least as long as the plaintext message and is derived from at least the plaintext message, and the data key;

    creating and storing an encrypted data key, wherein the encrypted data key is derived from at least the data key, and a key encrypting key;

    generating a communication comprising at least the encrypted data key and the ciphertext message;

    wherein each of the above steps is performed by one or more processors.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×