BROWSING METHOD OF BROWSING FILE, BROWSING PROGRAM OF BROWSING FILE, INFORMATION SHARING SYSTEM, SERVER OF INFORMATION SHARING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an information sharing system capable of uploading in a state where the content of a file cannot be confirmed.SOLUTION: An information sharing system includes a plurality of clients, and a server executing an operation for sharing the information selected on a menu screen after login. The server records an archive, uploaded from a client for provider used for uploading a file, while encrypting by using a password set by the client for provider. The archive is a file including one encrypted using a cryptographic key, and the archive can be downloaded from the server by a client for viewer used for browsing the file, and can be decrypted using the password. The file included in the archive can be decrypted by the client for viewer by using the cryptographic key, until a predetermined operation is performed via the client for viewer.SELECTED DRAWING: Figure 5