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DATA MANAGEMENT APPARATUS AND DATA MANAGEMENT METHOD

  • US 20090106561A1
  • Filed: 10/15/2008
  • Published: 04/23/2009
  • Est. Priority Date: 10/16/2007
  • Status: Abandoned Application
First Claim
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1. A data management apparatus adaptable to an encryption system using a common key and a pair of keys comprising a public key and a private key, the encryption system in which:

  • an encryption is performed by encrypting plaintext data with the common key to generate encrypted data and generate an encrypted common key by encrypting the common key with the public key; and

    decryption is performed by decrypting the encrypted common key with the private key to obtain a decrypted common key and decrypting the encrypted data with the decrypted common key, said data management apparatus comprising;

    a common key encryption unit configured to encrypt a first common key with a first public key to generate an encrypted first common key;

    a password setting receiving unit configured to receive a setting of a first password; and

    a private key encryption unit configured to encrypt a first private key with the first password to generate an encrypted first private key.

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