Document management apparatus, document management system, and non-transitory computer readable medium
A document management apparatus includes a first memory that stores a first search index generated for confidential information included in document data, a second memory that stores a second search index generated for non-confidential information other than the confidential information, a third memory that stores the document data including the confidential information concealed therewithin, and a controller that searches the document data by switching between the first search index and the second search index depending on a right of a user, and outputs a search result.
1. A document management apparatus comprising:
a first memory that stores a first search index generated for confidential information included in document data;
a second memory that stores a second search index generated for non-confidential information other than the confidential information;
a third memory that stores the document data including the confidential information concealed therewithin; and
a controller that searches the document data by switching between the first search index and the second search index depending on a right of a user, and outputs a search result,
wherein the first search index is generated from a linked character string of a character string of the confidential information and at least one of character strings of non-confidential information prior to and subsequent to the character string of the confidential information.
2. The document management apparatus according to claim 1 , wherein the controller searches the document data using the first search index and the second search index for a user having a special right, and searches the document data using the second search index for a user having no special right.
3. The document management apparatus according to claim 2 , wherein the first search index is generated from a character string of the confidential information.
4. The document management apparatus according to claim 3 , wherein the second search index is generated by replacing a character string of the confidential information with a dummy character string.
5. The document management apparatus according to claim 2 , wherein the second search index is generated by replacing a character string of the confidential information with a dummy character string.
6. The document management apparatus according to claim 5 , wherein the dummy character string comprises a symbol that is not used in searching.
7. The document management apparatus according to claim 1 , wherein the controller searches the document data using the first search index for a user having a special right, and searches the document data using the second search index for a user having no special right.
8. The document management apparatus according to claim 7 , wherein the second search index is generated by replacing a character string of the confidential information with a dummy character string.
9. The document management apparatus according to claim 1 , wherein the first search index is generated from a character string of the confidential information.
10. The document management apparatus according to claim 9 , wherein the second search index is generated by replacing a character string of the confidential information with a dummy character string.
11. The document management apparatus according to claim 1 , wherein the second search index is generated by replacing a character string of the confidential information with a dummy character string.
12. The document management apparatus according to claim 11 , wherein the dummy character string comprises a symbol that is not used in searching.
13. A document management system comprising:
a document processing apparatus;
a document management apparatus that receives document data from the document processing apparatus, the document management apparatus including a first memory that stores a first search index generated for confidential information included in the document data, a second memory that stores a second search index generated for non-confidential information other than the confidential information, a third memory that stores the document data including the confidential information concealed therewithin, and a controller that searches the document data by switching between the first search index and the second search index depending on a right of a user, and outputs a search result; and
a terminal that transmits a search condition to the document management apparatus and receives the search result from the document management apparatus,
wherein the first search index is generated from a linked character string of a character string of the confidential information and at least one of character strings of non-confidential information prior to and subsequent to the character string of the confidential information.
14. A non-transitory computer readable medium storing a program causing a computer to execute a process for managing document data, the process comprising:
generating a first search index for confidential information included in the document data;
storing on a first memory the first search index generated;
generating a second search index for non-confidential information other than the confidential information;
storing on a second memory the second search index generated;
concealing the confidential information in the document data;
storing on a third memory the document data including the concealed confidential information;
searching the document data on a per right basis of a user by switching between the first search index and the second search index; and
outputting a search result,
wherein the first search index is generated from a linked character string of a character string of the confidential information and at least one of character strings of non-confidential information prior to and subsequent to the character string of the confidential information.