How to calculate encrypted data Use 3DES encryption

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  • 11. November 2022 at 10:43
    Hi All

    session key : 1C 94 D1 5B 50 7F 86 2C 6D D3 C3 BE F2 C8 FA 75
    data : F1 E3 D1 C7 B1 A3 91 8F 06 0E 3C 2E 58 4E 7C 6E 64 72 5E 54 00 00 00 00
    Encrypt data : 35 E4 31 B4 BE 54 1C 0A 5F 5F BD 81 07 E2 F3 24 E2 CD 89 1A 0A CD 4D 5D

    The above data is from "AN0945 MIFARE DESFire EV1 - Implementation hints and examples (3.4).pdf" document

    I use 3DES encrypted CBC mode.
    I cannot calculate the encrypted data using the secret key and data.
    I can calculate the first 8 bytes, but the following bytes cannot be settled.


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    Re: How to calculate encrypted data Use 3DES encryption

    14. November 2022 at 2:18
    I can calculate "35 E4 31 B4 BE 54 1C 0A",but the following bytes cannot be settled.
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