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openssl dgst -mac magma-mac -macopt hexkey:ffeeddccbbaa99887766554433221100f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff magma.dat 154e7210 openssl dgst -mac grasshopper-mac -macopt hexkey:8899aabbccddeeff0011223344556677fedcba98765432100123456789abcdef gh.dat 336f4d296059fbe3