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  1. #1
    Registered User
    Join Date
    Jan 2006
    Posts
    1

    Smile secure sms messaging

    hello guys..
    i'm interested in developing secure sms messaging...i'm doing the tutorial under A Brief Introduction to Secure SMS Messaging in MIDP by Nokia. Instead using one encryption algorithm, i'd implement three encryption algorithms.Only the problem is how to let the receiver know which encryption algorithm did the sender use to encrypt the sms text. Can someone in this forum guide me n thank you very much..

  2. #2
    Super Contributor
    Join Date
    Mar 2003
    Location
    Finland
    Posts
    9,569

    Re: secure sms messaging

    Append your encrypted data after some sort of unencrypted "header" field (you might have to waste a whole byte, even if you only need two bits) that tells the receiver what the encryption algorithm used was (the receiver then strips off the header & from it determines what to use for the actual data).

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