Symmetric cryptography with user authentication
AssigneeTyfone, Inc.
InventorsSiva Narendra, Prabhakar Tadepalli, Thomas Spitzer
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Abstract
A device uses a user authentication factor to generate a symmetric key for use in symmetric cryptography. The user authentication factor is encrypted and stored for authentication during decryption.
Claims41
A method for encrypting data comprising:
- receiving at least one user authentication factor;
- generating a symmetric key from the at least one user authentication factor;
- and
- encrypting data using the symmetric key.
A method for decrypting data comprising:
- receiving at least one user authentication factor;
- generating a symmetric key from the at least one user authentication factor;
- and
- decrypting stored data using the symmetric key.
An apparatus with a machine accessible medium having instructions stored thereon that when accessed result in a machine performing:
- receiving at least one user authentication factor;
- generating a symmetric key from the at least one user authentication factor;
- and
- encrypting data using the symmetric key.
An apparatus with a machine accessible medium having instructions stored thereon that when accessed result in a machine performing:
- receiving at least one user authentication factor;
- generating a symmetric key from the at least one user authentication factor;
- and
- decrypting stored data using the symmetric key.
A computer system for storing and accessing encrypted data, comprising:
- a user authentication factor collection component to receive at least one user authentication factor;
- a symmetric key generation component to generate a symmetric key from the at least one user authentication factor;
- an encryption process component to encrypt data and the at least one user authentication factor using the symmetric key;
- and
- a decryption process component to decrypt encrypted data using the symmetric key.
An apparatus comprising:
- means for collecting at least one user authentication factor;
- means for generating a symmetric key from the at least one user authentication factor;
- means for encrypting data using the symmetric key;
- and
- means for decrypting data using the symmetric key.
A handheld device to store encrypted data, comprising:
- a biometric collection device to collect a biometric user authentication factor;
- and
- a symmetric cryptography engine to generate a symmetric key from the biometric user authentication factor, and to encrypt data using the symmetric key.
Dependencies are inferred from the claim text.