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  3. Possible securiy breach in ESPS.

Possible securiy breach in ESPS.

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  • alexeliteA Offline
    alexeliteA Offline
    alexelite
    wrote on last edited by
    #2

    I do not think it is a security breach, because ESP32 has AES256 encryption for flash data, if enabled.
    https://docs.espressif.com/projects/esp-idf/en/latest/esp32/security/flash-encryption.html

    A 1 Reply Last reply
    0
    • alexeliteA alexelite

      I do not think it is a security breach, because ESP32 has AES256 encryption for flash data, if enabled.
      https://docs.espressif.com/projects/esp-idf/en/latest/esp32/security/flash-encryption.html

      A Offline
      A Offline
      Anticimex
      Contest Winner
      wrote on last edited by
      #3

      @alexelite they do not, however, state exactly which variant of AES they use. If they do not generate an initialization vector and are not using some block chaining variant, AES is quite weak.

      Do you feel secure today? No? Start requiring some signatures and feel better tomorrow ;)

      Jacky JoyJ skywatchS T 3 Replies Last reply
      1
      • A Anticimex

        @alexelite they do not, however, state exactly which variant of AES they use. If they do not generate an initialization vector and are not using some block chaining variant, AES is quite weak.

        Jacky JoyJ Offline
        Jacky JoyJ Offline
        Jacky Joy
        wrote on last edited by
        #4

        @Anticimex said in Possible securiy breach in ESPS.:

        @alexelite they do not, however, state exactly which variant of AES they use. If they do not generate an initialization vector and are not using some block chaining variant, AES is quite weak.

        thanks my issue has been fixed.

        1 Reply Last reply
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        • A Anticimex

          @alexelite they do not, however, state exactly which variant of AES they use. If they do not generate an initialization vector and are not using some block chaining variant, AES is quite weak.

          skywatchS Offline
          skywatchS Offline
          skywatch
          wrote on last edited by
          #5

          @Anticimex said in Possible securiy breach in ESPS.:

          @Anticimex
          AES is quite weak.

          Probably why the NSA/CIA/FBI etc all recommended it! ;)

          A 1 Reply Last reply
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          • A Anticimex

            @alexelite they do not, however, state exactly which variant of AES they use. If they do not generate an initialization vector and are not using some block chaining variant, AES is quite weak.

            T Offline
            T Offline
            TheoL
            Contest Winner
            wrote on last edited by
            #6

            @Anticimex Don't think they use have encryption. It's just not powerful enough for that

            A 1 Reply Last reply
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            • T TheoL

              @Anticimex Don't think they use have encryption. It's just not powerful enough for that

              A Offline
              A Offline
              Anticimex
              Contest Winner
              wrote on last edited by
              #7

              @TheoL AES is not complicated to implement in hardware and the docs suggest they have it but the technical detail is low.

              Do you feel secure today? No? Start requiring some signatures and feel better tomorrow ;)

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              • skywatchS skywatch

                @Anticimex said in Possible securiy breach in ESPS.:

                @Anticimex
                AES is quite weak.

                Probably why the NSA/CIA/FBI etc all recommended it! ;)

                A Offline
                A Offline
                Anticimex
                Contest Winner
                wrote on last edited by
                #8

                @skywatch are you implying they recommend AES without an IV or block chaining enhancement? I don't think so ;)

                Do you feel secure today? No? Start requiring some signatures and feel better tomorrow ;)

                skywatchS 1 Reply Last reply
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                • A Anticimex

                  @skywatch are you implying they recommend AES without an IV or block chaining enhancement? I don't think so ;)

                  skywatchS Offline
                  skywatchS Offline
                  skywatch
                  wrote on last edited by
                  #9

                  @Anticimex No, I am saying that they already had a way to get AES data so that is why rhey promoted it for use generally. They are always way ahead of what we are allowed to have!

                  A 1 Reply Last reply
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                  • skywatchS skywatch

                    @Anticimex No, I am saying that they already had a way to get AES data so that is why rhey promoted it for use generally. They are always way ahead of what we are allowed to have!

                    A Offline
                    A Offline
                    Anticimex
                    Contest Winner
                    wrote on last edited by
                    #10

                    @skywatch that depend on the key size you choose, and how you deploy the implementation (like block chaining and random initialization).
                    Symmetric ciphers are even quite secure in the quantum world given large enough key sizes.

                    Do you feel secure today? No? Start requiring some signatures and feel better tomorrow ;)

                    skywatchS 1 Reply Last reply
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                    • A Anticimex

                      @skywatch that depend on the key size you choose, and how you deploy the implementation (like block chaining and random initialization).
                      Symmetric ciphers are even quite secure in the quantum world given large enough key sizes.

                      skywatchS Offline
                      skywatchS Offline
                      skywatch
                      wrote on last edited by
                      #11

                      @Anticimex Surely in a quantum environment a key size is irrelevant?

                      A 1 Reply Last reply
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                      • skywatchS skywatch

                        @Anticimex Surely in a quantum environment a key size is irrelevant?

                        A Offline
                        A Offline
                        Anticimex
                        Contest Winner
                        wrote on last edited by
                        #12

                        @skywatch not really, depending on the algorithm

                        Do you feel secure today? No? Start requiring some signatures and feel better tomorrow ;)

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