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RSA key generation, encryption and decryption

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  • I Offline
    I Offline
    Illogica
    wrote on last edited by
    #1

    What would be the fast and most efficient way to incorporate RSA key generation, encryption and decryption functionality in my Qt application?
    I have a server in Nodejs where the RSA management is trivial; on the client side (Qt) I'm still looking around for a good solution.
    I spent about an hour trying to understand what good can come out of Qca, but those guys seem to enjoy making your life difficult.
    Openssl seems to be overkill, Cripto++ is quite vast, too.
    I just need a bunch of RSA algorythms. Any suggestion?

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    • VRoninV Offline
      VRoninV Offline
      VRonin
      wrote on last edited by
      #2

      Openssl is already used by Qt so so I would just use that as you probably have to deploy it anyway

      "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
      ~Napoleon Bonaparte

      On a crusade to banish setIndexWidget() from the holy land of Qt

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      • VRoninV VRonin

        Openssl is already used by Qt so so I would just use that as you probably have to deploy it anyway

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        Illogica
        wrote on last edited by
        #3

        @VRonin Thanks for the prompt response. Yes, there is some QtSsl class and OpenSSL support, but all the RSA goodies are not exposed to he programmer.

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        • I Offline
          I Offline
          Illogica
          wrote on last edited by
          #4

          This is going to sound ridiculous, but using pure javascript libraries via QML seems to be a much easier solution.

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          • VRoninV Offline
            VRoninV Offline
            VRonin
            wrote on last edited by
            #5

            I meant that since yo probably have to deploy openssl libraries anyway you might as well use OpenSSL directly.
            can this help?

            "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
            ~Napoleon Bonaparte

            On a crusade to banish setIndexWidget() from the holy land of Qt

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            • VRoninV VRonin

              I meant that since yo probably have to deploy openssl libraries anyway you might as well use OpenSSL directly.
              can this help?

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              I Offline
              Illogica
              wrote on last edited by
              #6

              @VRonin Yes, I've seen that example. It's useful, anyway I'd ship about 4 megabytes of libraries just for the RSA algorithms. Also, I'm planning to deploy on Android so I'd have to find out an OpenSSL build for arm. Sounds like an overly complicated way to use RSA.

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