Case

Keytellock(PC Email Version)

Keytellock is a system where encrypted files can be easily decrypted.

The encryptor (user encrypting the file) specifies the file to be encrypted as well as the mobile email address of the decryptor (user decrypting the file) , and an encrypted file is generated just by pushing the "start encryption" button.

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Encryption Steps
1.The Encryptor　The encryptor specifies which file is to be encrypted by dragging and dropping files. Next, the user specifies the decryptor's email address (PC email or mobile email address). Next, the user clicks the "start encryption" button. (The file can be encrypted through the actions of the encryptor and for this reason, there is no need to think of a password.)
2.The Encryptor's PC　The specified decryptor's email address is sent to the server.
3.Server　The file ID, encryption password and decryption password is created (the encryption and decryption password may be the same). The created file ID and decryption password is saved and set to correspond to the decryptor's email address that was received by the server.
4.Server　The file ID and encrypting password is sent by the server to the encryptor's PC.
5.The Encryptor's PC　The file is automatically encrypted using the encryption password received from the server. In addition, the file ID and decryption module is included in the encrypted file. At this point, the encryption process is complete.

The encryptor uses email or other methods to send the encrypted file to the decryptor.There is no need to inform the decryptor of the decrypting password.

Decryption Steps
1.Decryptor　Double click the encrypted file.
2.Decryptor's PC　Run the decryption module included in the encrypted file. (All processing on the decryptor's PC is done using the Decryption module. For this reason, there is no need to pre-download any software for decryption.)
The encrypted file, which includes the file ID is sent to the decryptor's PC.
3.Server　A one-time email address is made. This one-time email address is associated with the file ID received.
4.Server 　The allocated one-time email is sent to the decryptor's PC.
5.Decryptor's PC　The one-time email address received from the server is displayed on the Decryptor's PC. By clicking the one-time email address, the recipient of the email (To:) is set as the one-time email address and the decryptor's email address is set as the sender (From:) and a blank email is sent.
6.Server　A blank email is received. From this email, both the recipient and the sender's email are received. The recipient's email address (one-time email address) is used to identify the associated File ID. At the same time, the decryption password associated with the file ID is identified.
7.Server 　The validity of the decryption request is determined by comparing decryptor's email address with the recipient's address.
8.Server　Only in the case that the decryptor is valid is the specific decryption password is sent to the decryptor's PC.
９.Decryptor's PC　The encrypted file is automatically decrypted using the decryption password received from the server. At this point, the decryption process is complete.

After the decryptor double-clicks the encrypted file, the encrypted file can be decrypted simply by sending an email.

There is no need for the decryptor to receive or enter passwords.

Keytellock(Mobile Email version)

The decrypter only needs to double click the encrypted file and send a blank email from their mobile phone.

Decryption Steps
1.Decryptor　Double click the encrypted file.
2.Decryptor's PC　Run the decryption module included in the encrypted file. (All processing on the decryptor's PC is done using the Decryption module. For this reason, there is no need to pre-download any software for decryption.)
3.Server　A one-time email address is created. The one-time email address is set to correspond with the file ID received from the Decryptor's PC.
4.Server　The one-time email address is sent to the decryptor's PC.
5.Decryptor's PC　The one-time email address is displayed on screen as a QR Barcode.
6.Mobile Phone　The user scans the QR Bar code and a blank email is generated with the one-time email address as the recipient (TO:) and the decryptor's PC email address as the sender (FROM:) and sent.
7.Server　The server receives the blank email. The server then receives both the sender and recipient's email information and this information is about the both the sender and recipient's email addresses. The server then matches recipient's email address (one-time email address) to that of the file ID stored on the server. Furthermore, the server identifies the decryption password corresponding to the file ID.
8.Server　The validity of the decryption request is determined by comparing decryptor's email address with the recipient's address.
９.Server　Only in the case that the decryptor is valid is the specific decryption password is sent to the decryptor's PC.
1０.Decryptor's PC　The encrypted file is automatically decrypted using the decryption password received from the server. At this point, the decryption process is complete.

After the decryptor double-clicks the encrypted file, the encrypted file can be decrypted simply by sending an email via mobile phone.

There is no need for the decryptor to receive or enter passwords.

Keytellock(Dial)

The decrypter only needs to double click the encrypted file and send a blank email from their mobile phone.

Encryption Steps
1.The Encryptor　The encryptor specifies which file is to be encrypted by dragging and dropping files. Next, the user specifies the decryptor's telephone number. Next, the user clicks the "start encryption" button. (The file can be encrypted through the actions of the encryptor and for this reason, there is no need to think of a password.)
2.The Encryptor's PC　The specified decryptor's telephone number is sent to the server.
3.Server　The file ID, encryption password and decryption password is created (the encryption and decryption password may be the same). The created file ID and decryption password is saved and set to correspond to the decryptor's telephone number that was received by the server.
4.Server　The file ID and encrypting password is sent by the server to the encryptor's PC.
5.The Encryptor's PC　The file is automatically encrypted using the encryption password received from the server. In addition, the file ID and decryption module is included in the encrypted file. At this point, the encryption process is complete.

The encryptor sends the encrypted file via email or other methods to the decryptor. There is no need to inform the decryptor of the password.

Decryption Steps
1.Decryptor　Double click the encrypted file.
2.Decryptor's PC　Run the decryption module included in the encrypted file. (All processing on the decryptor's PC is done using the Decryption module. For this reason, there is no need to pre-download any software for decryption.)
3.Server　A one-time number is allocated to the file ID received from the decryptor's PC. The allocated one-time number and the file ID received is saved and set to correspond with each other.
4.Server　The allocated one-time number is sent to the decryptor's PC.
5.Decryptor's PC　The one-time number is received from the server and displayed on the Decryptor's PC.
6.Mobile Phone　The decryptor dials the one-time number received by the decryptor's PC and the telephone number information is via dial.
7.Server　The server receives the call from the mobile phone. The server then receives information about the both the caller and the receiver's telephone number. The server then matches the telephone number (one-time number) to that of the file ID stored on the server. Furthermore, the server identifies the decryption password corresponding to the file ID.
8.Server　The validity of the decryption request is determined by comparing the telephone number received by the server from the dialer and the decryptor's telephone number corresponding to the specific file ID.
9.Server　　Only in the case that the decryptor is valid is the specific decryption password is sent to the decryptor's PC.
10.Decryptor's PC　The encrypted file is automatically decrypted using the decryption password received from the server. At this point, the decryption process is complete.

After the decryptor double-clicks the encrypted file, the encrypted file can be decrypted simply by making a call including the dialer's phone number information in the dial tone from the user's mobile phone.

There is no need for the decryptor to receive or enter passwords.

Password Messenger

An Implementation Service for "2Click Authentication."

Are your encrypted passwords really being communicated safely? This tool can be used to send passwords safely and conveniently on your behalf (To be released in May 2007)
Password Messenger (Beta)has been released (2007.5.7)

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