System and method for controlling comments in a collaborative document

• US 7,950,064 B2
• Filed: 11/16/2007
• Issued: 05/24/2011
• Est. Priority Date: 11/16/2007
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Eisinger, Jacob Daniel, Reichert, William Alexander III, King, Jennifer Elizabeth, Wardrop, Patrick Ryan, Chavez, Timothy R.
• Primary Examiner(s): Dada; Beemnet W
• Application Number:
  US11/941,250
• Publication Number:
  US 20090129596A1
• Time in Patent Office: 1,285 Days
• Field of Search: 726/28, 726/2, 726/26, 726/27, 726/29, 726/30, 380/277, 380/286, 715/234
• US Class Current: 726/28
• CPC Class Codes: G06F 40/169 Annotation, e.g. comment data or footnotes

Abstract

A system, method, and program product is provided that operates when opening a word processing document that includes document content inserted at various insertion points within the document. The document is opened by a user that corresponds to a particular user identifier. The comments included in the document include recipient identifiers. A first set of comments are selected where the user'"'"'s identifier is included in the recipient identifiers of the corresponding comments, and a second set of comments are selected where the user'"'"'s identifier is not included in the recipient identifiers of the corresponding comments. The word processor displays the first set of comments at their respective insertion points within the document content and does not present the second set of comments.

Claims

1. A computer-implemented method comprising:

opening a word processing document that includes document content and a plurality of comments inserted at a plurality of insertion points within the document content, wherein the opening occurs during a word processing application currently assigned to a user identifier, and wherein one or more of the plurality of comments includes one or more recipient identifiers;

selecting a first set of comments from the plurality of comments where the user identifier is included in the recipient identifiers of the corresponding comments;

identifying a first set of one or more encrypted comments included in the first set of comments;

retrieving a user encryption key corresponding to the user identifier;

decrypting the first set of encrypted comments using the retrieved user encryption key;

selecting a second set of comments from the plurality of comments where the user identifier is not included in the recipient identifiers of the corresponding comments;

displaying the first set of comments, each of the first set of comments being displayed at their respective insertion points within the document content; and

inhibiting display of the second set of comments.

2. The method of claim 1 wherein at least one of the plurality of comments that does not include one or more recipient identifiers is included in the first set of comments.

3. The method of claim 1 wherein a group comment is included in the first set of comments, wherein the group comment includes a group recipient identifier and wherein the selecting of the first set of comments further comprises:

determining that the user identifier is included in a list of identifiers corresponding to the group recipient identifier.

4. The method of claim 3 further comprising:

prior to displaying the group comment;

determining that the group comment is encrypted;

in response to determining that the group comment is encrypted;

locating an encrypted recipient package corresponding to the user identifier, wherein the recipient package includes one or more group encryption keys;

decrypting the encrypted recipient package using the retrieved user encryption key;

retrieving a selected group encryption key from the decrypted recipient package, wherein the selected group encryption key corresponds to the group recipient identifier; and

decrypting the encrypted group comment using the selected group encryption key.

5. The method of claim 1 wherein a second set of one or more encrypted comments is included in the second set of comments, and wherein the retrieved user encryption key is unable to decrypt the second set of encrypted comments.

6. The method of claim 1 wherein at least one of the encrypted comments selected from the first set of encrypted comments was encrypted using a public encryption key that corresponds to the user identifier, and wherein the retrieved user encryption key used to decrypt the selected encrypted comment is a private encryption key that corresponds to the public encryption key.

7. A information handling system comprising:

one or more processors;

a memory accessible by at least one of the processors;

a nonvolatile storage area accessible by at least one of the processors;

a set of instructions stored in the memory and executed by at least one of the processors in order to perform actions of;

opening a word processing document that includes document content and a plurality of comments inserted at a plurality of insertion points within the document content, wherein the opening occurs during a word processing application currently assigned to a user identifier, and wherein one or more of the plurality of comments includes one or more recipient identifiers;

selecting a first set of comments from the plurality of comments where the user identifier is included in the recipient identifiers of the corresponding comments;

identifying a first set of one or more encrypted comments included in the first set of comments;

retrieving a user encryption key corresponding to the user identifier;

decrypting the first set of encrypted comments using the retrieved user encryption key;

selecting a second set of comments from the plurality of comments where the user identifier is not included in the recipient identifiers of the corresponding comments;

displaying the first set of comments, each of the first set of comments being displayed at their respective insertion points within the document content; and

inhibiting display of the second set of comments.

8. The information handling system of claim 7 wherein at least one of the plurality of comments that does not include one or more recipient identifiers is included in the first set of comments.

9. The information handling system of claim 7 wherein a group comment is included in the first set of comments, wherein the group comment includes a group recipient identifier and wherein the selecting of the first set of comments further comprises additional instructions that, when executed, cause at least one of the processors to perform further actions comprising:

determining that the user identifier is included in a list of identifiers corresponding to the group recipient identifier.

10. The information handling system of claim 9 wherein the set of instructions, when executed, cause at least one of the processors to perform further actions comprising:

prior to displaying the group comment;

determining that the group comment is encrypted;

in response to determining that the group comment is encrypted;

locating an encrypted recipient package corresponding to the user identifier, wherein the recipient package includes one or more group encryption keys;

decrypting the encrypted recipient package using the retrieved user encryption key;

retrieving a selected group encryption key from the decrypted recipient package, wherein the selected group encryption key corresponds to the group recipient identifier; and

decrypting the encrypted group comment using the selected group encryption key.

11. The information handling system of claim 7 wherein at least one of the encrypted comments selected from the first set of encrypted comments was encrypted using a public encryption key that corresponds to the user identifier, and wherein the retrieved user encryption key used to decrypt the selected encrypted comment is a private encryption key that corresponds to the public encryption key.

12. A computer program product stored in a non-transitory computer readable medium, comprising functional descriptive material that, when executed by an information handling system, causes the information handling system to perform actions that include:

opening a word processing document that includes document content and a plurality of comments inserted at a plurality of insertion points within the document content, wherein the opening occurs during a word processing application currently assigned to a user identifier, and wherein one or more of the plurality of comments includes one or more recipient identifiers;

selecting a first set of comments from the plurality of comments where the user identifier is included in the recipient identifiers of the corresponding comments;

identifying a first set of one or more encrypted comments included in the first set of comments;

retrieving a user encryption key corresponding to the user identifier;

decrypting the first set of encrypted comments using the retrieved user encryption key;

selecting a second set of comments from the plurality of comments where the user identifier is not included in the recipient identifiers of the corresponding comments;

displaying the first set of comments, each of the first set of comments being displayed at their respective insertion points within the document content; and

inhibiting display of the second set of comments.

13. The computer program product of claim 12 wherein at least one of the plurality of comments that does not include one or more recipient identifiers is included in the first set of comments.

14. The computer program product of claim 12 wherein a group comment is included in the first set of comments, wherein the group comment includes a group recipient identifier and wherein the selecting of the first set of comments further comprises additional functional descriptive material that causes the data processing system to perform additional actions that include:

determining that the user identifier is included in a list of identifiers corresponding to the group recipient identifier.

15. The computer program product of claim 14 further comprising functional descriptive material that causes the data processing system to perform additional actions that include:

prior to displaying the group comment;

determining that the group comment is encrypted;

in response to determining that the group comment is encrypted;

locating an encrypted recipient package corresponding to the user identifier, wherein the recipient package includes one or more group encryption keys;

decrypting the encrypted recipient package using the retrieved user encryption key;

retrieving a selected group encryption key from the decrypted recipient package, wherein the selected group encryption key corresponds to the group recipient identifier; and

decrypting the encrypted group comment using the selected group encryption key.

16. The computer program product of claim 12 wherein a second set of one or more encrypted comments is included in the second set of comments, and wherein the retrieved user encryption key is unable to decrypt the second set of encrypted comments.

17. The computer program product of claim 12 wherein at least one of the encrypted comments selected from the first set of encrypted comments was encrypted using a public encryption key that corresponds to the user identifier, and wherein the retrieved user encryption key used to decrypt the selected encrypted comment is a private encryption key that corresponds to the public encryption key.