Described is a method for secure data disposal. Data stored in storage volume(s) is encrypted with a specific encryption key. Before the key is disposed of, a clear text string is encrypted with the same key and the encrypted data is associated with the clear text string and stored in a repository. When...http://www.google.fr/patents/US7912223?utm_source=gb-gplus-shareBrevet US7912223 - Method and apparatus for data protection
