2. The electronic document storage apparatus according to claim 1 , further comprising a temporary restoration process unit for reading said electronic document transferred by said transfer process unit out of said archive media into an electronic document temporary restoration unit; and an electronic document temporary restoration unit for storing an electronic document read out of the archive media by the temporary restoration process unit.
2. The electronic document storage apparatus according to claim 1 , further comprising a temporary restoration process unit for reading said electronic document transferred by said transfer process unit out of said archive media into an electronic document temporary restoration unit; and an electronic document temporary restoration unit for storing an electronic document read out of the archive media by the temporary restoration process unit. 3. The electronic document storage apparatus according to claim 2 , wherein an electronic document stored in said electronic document storage unit is enciphered at the time of registration of the electronic document by using an encryption key being renewed at an appropriate timing and being under a generation management; said transfer process unit transfers an electronic document enciphered by an encryption key being used at the time of registration to said archive media; and said temporary restoration process unit reads out the transferred electronic document remaining as being enciphered by an encryption key used at the time of registration into said electronic document temporary restoration unit.