Abstract: A system, method and program product for transferring data between a first computer and a second computer. A first request to start a session is received. An encrypted hash value in the first request is decrypted and a hash value for the information in the first request is independently determined. The independently determined hash value is compared to the decrypted hash value, and if there is match, a session with the first computer is started. Subsequently, a second request is received and the encrypted hash value in the second request is decrypted. A hash value for the information in the second request is independently determined. The independently determined hash value is compared to the decrypted hash value, and if there is match, the second computer processes a request to at least partially download or upload a file.

Abstract: A method for transferring data between a first computer and a second computer is provided. The first computer sends a request to start a session, an encrypted session ID, and an encrypted hash value to the second computer. The second computer receives the request, decrypts the encrypted hash value, independently determines a hash value and compares the independently determined value to the decrypted value. If they match, the second computer starts a session with the first computer. Subsequently, the first computer sends a request to download or upload data, an encrypted ID, an identity of the file, and an encrypted hash value to the second computer in a second connection in the session. The second computer receives the request, decrypts the encrypted hash value, independently determines a hash value and compares the independently determined value to the decrypted value. If they match, the second computer processes the request.