Terms and Conceptions

  • Net Login: A registered user input username and password then login MDSS server. In Net Login mode, user can do all operations.
  • Net Anonym: Any user can connect with MDSS server by Net Anonym mode.
  • Local PC: This mode doesn't need network.

    		•
     
    Net Login
    Net Anonym
    Local Pc
    connection with MDSS server
    need
    need
    no need
    view message in signature
    Y
    Y
    Y
    verify signature
    Y
    Y
    Y
    import signature
    Y
    Y
    Y
    web key sign
    Y
    N
    N
    locak key sign
    Y
    Y
    Y
    web key manage
    Y
    N
    N
    local key manage
    Y
    Y
    Y
    acount manage
    Y
    N
    N
    register new user
    Y
    Y
    N
    certificates synchronization
    Y
    Y
    N

  • Original File: File to be signed.
  • Signed Page: Signatures in a file compose signed page.
  • Signed File: There are two kinds of signed file, Complex Signed File and Single Signed FIle.
  • Complex Signed File: *.wds file, contains a original file and a signed page.


  • Single Signed Page: *.rds file, only contains a signed page.
  • Sign Key: A kind of computer data used to create digital signature. A sign key belongs a user.
  • Web Key Sign: A sign model which is more automatic. User's participation is not necessary in signing process. Web Key Sign can only be used when user login the server.
  • Local Key Sign: A sign model in which user's participation is necessary in signing process. User should open a file storing sign key. Local Key Sign can be used on web or not on web.
  • Signature Verification: Guarantee that the individual signing the message really is who he or she claims to be. Also, it guarantee the message had not been changed from his or signing action.
  • Key File: A encrypted file used for storing user's Sign Key. Only after correct username and password be given, can Key File be opened for Local Key Sign.
  • Depended Signature: Later signer can make his or her signature depend on a existing signature. This signature is depended signature for his or her signature.
  • Signature Solidification: File clerk can solidify the signed file. After that, None can adjust the signatures or add new signature in this signed file.
  • Password Pack: The user may forget his or her login password. To resolve the problem safely, MDSS use password pack to store password. In Net Login model, user can wrap password in a pack file which can be unwrapped only by MDSS administrator. In addition, administrator can only unwrap the pack file which is provided by correct user.
  • User Certificates: Users Certificates is the base to verify signature.
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