公开(公告)号：MY151312A

公开(公告)日：2014-05-15

申请号：MYPI2010004934

申请日：2010-10-20

Applicant: MIMOS BERHAD

Inventor： BEE TAN FUI ,  HARON GALOH RASHIDAH ,  SEAK SEA CHONG ,  SIONG NG KANG ,  SIAN TAN SOO ,  DAUD NOR IZYANI

IPC: G06F21/34 ,  G06F21/62

Abstract: ONE EMBODIMENT OF THE PRESENT INVENTION IS A METHOD FOR FILE ENCRYPTION IN A SERVER, THE METHOD (200) COMPRISING THE STEPS OF ACCESSING A SERVER BY LOGGING IN TO A SERVER VIA A PREDETERMINED PROGRAMMING LANGUAGE (202), SELECTING AT LEAST ONE FILE FOR ENCRYPTION UPON SUCCESSFUL LOGIN TO A SERVER (204), INITIALIZING ENCRYPTION PROCESS TO GENERATE AN ENCRYPTION KEY, SK (206), ENCRYPTING AT LEAST ONE FILE USING THE ENCRYPTION KEY, SK TO OBTAIN X (208), STORING X IN A DATABASE OF THE SERVER (210), ENCRYPTING THE ENCRYPTION KEY, SK USING A USER PUBLIC KEY TO OBTAIN Y (212) AND STORING Y IN THE DATABASE OF THE SERVER (214). ANOTHER EMBODIMENT OF THE PRESENT INVENTION IS A METHOD FOR FILE DECRYPTION IN A SERVER, THE METHOD (300) COMPRISING THE STEPS OF ACCESSING A SERVER BY LOGGING IN TO A SERVER VIA A PREDETERMINED PROGRAMMING LANGUAGE (302), SELECTING THE ENCRYPTED FILE, X FROM A DATABASE OF THE SERVER FOR DECRYPTION (304), ACCESSING THE ENCRYPTED FILE, Y FROM THE DATABASE OF THE SERVER (306), FORWARDING THE ENCRYPTED FILE, Y FROM THE DATABASE OF THE SERVER FOR DECRYPTION (308), DECRYPTING THE ENCRYPTED FILE, Y USING USER PRIVATE KEY TO OBTAIN AN ENCRYPTION KEY, SK (310), ENCRYPTING THE ENCRYPTION KEY, SK USING SERVER PUBLIC KEY EXTRACTED FROM A SERVER CERTIFICATION TO OBTAIN AN ENCRYPTED FILE, Z (312), FORWARDING THE ENCRYPTED FILE, Z TO THE SERVER (314), DECRYPTING THE ENCRYPTED FILE, Z USING SERVER PRIVATE KEY TO OBTAIN ENCRYPTION KEY, SK (316) AND DECRYPTING ENCRYPTED FILE, X USING ENCRYPTION KEY, SK TO OBTAIN AN ORIGINAL DOCUMENT (318). ANOTHER EMBODIMENT OF THE PRESENT INVENTION IS A SYSTEM FOR FILE ENCRYPTION AND DECRYPTION IN A SERVER, THE SYSTEM (400) COMPRISING A PLURALITY OF TOKENS (402), A CLIENT SYSTEM (404), A SERVER SYSTEM (406) AND A DATABASE (408). THE MOST ILLUSTRATIVE DRAWINGS:

公开(公告)号：MY151316A

公开(公告)日：2014-05-15

申请号：MYPI2010004936

申请日：2010-10-20

Applicant: MIMOS BERHAD

Inventor： SEAK SEA CHONG ,  BEE TAN FUI ,  SIONG NG KANG ,  HARON GALOH RASHIDAH ,  SIAN TAN SOO ,  DAUD NOR IZYANI

IPC: G06F21/64

Abstract: ONE EMBODIMENT OF THE PRESENT INVENTION PROVIDES A METHOD (300) FOR CREATING DIGITAL SIGNATURE IN A SERVER, THE METHOD COMPRISING THE STEPS OF LOGGING IN TO THE SERVER VIA USER?S DIGITAL CERTIFICATE (302), SELECTING AT LEAST ONE FILE FOR DIGITAL SIGNATURE CREATION (304), GENERATING AT LEAST ONE FILE OF DIGEST CODE [A] (306), EMBEDDING THE AT LEAST ONE FILE OF DIGEST CODE [A] IN A BROWSER EXTENSION PROGRAM AT CLIENT SIDE (308), ACTIVATING THE BROWSER EXTENSION PROGRAM (310), ENCRYPTING THE DIGEST CODE [A] WITH A USER PRIVATE KEY (312), TRANSMITTING THE ENCRYPTED DIGEST CODE [B] TO THE SERVER (314), CREATING A DIGITAL SIGNATURE AT THE SERVER (316) AND STORING THE DIGITAL SIGNATURE IN A DATABASE (318). ANOTHER EMBODIMENT OF THE PRESENT INVENTION PROVIDES A METHOD (400) FOR VERIFYING DIGITAL SIGNATURE IN A SERVER, THE METHOD COMPRISING THE STEPS OF REQUESTING VERIFICATION OF A DIGITAL SIGNATURE HAVING AN ENCRYPTED DIGEST CODE [B] FROM A DATABASE IN A SERVER (402), RETRIEVING AT LEAST ONE ENCRYPTED DIGEST CODE [B] FROM THE DATABASE (404), GENERATING AT LEAST ONE FILE OF ORIGINAL DIGEST CODE [A] (406), RETRIEVING A USER PUBLIC KEY (408), DECRYPTING ENCRYPTED DIGEST CODE [B] FROM THE DIGITAL SIGNATURE USING THE USER PUBLIC KEY WHICH PRODUCES DECRYPTED DIGEST CODE [C] (410) AND COMPARING BOTH DIGEST ([A] = [C]) (412) TO DETERMINE A SUCCESS OR FAILURE RATE OF THE DECRYPTED INFORMATION. THE MOST ILLUSTRATIVE DRAWINGS: