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    Hashing


    MD5

    TinyCLR OS supports MD5 hash function.

    The following commands will calculate the MD5 hash value of a byte array:

    Tip

    Needed NuGets: GHIElectronics.TinyCLR.Core and GHIElectronics.TinyCLR.Cryptography

    var md5 = GHIElectronics.TinyCLR.Cryptography.MD5.Create();
    var hashValue = md5.ComputeHash(data); //data is a byte array.
    

    CRC16

    TinyCLR OS also supports CRC16.

    ComputeHash(byte[] data, int offset, int count);
    

    Large amounts of data can be calculated in chunks and the hash is concatenated automatically. Calling Reset resets the seed value.

    var crc16 = new Crc16();
    var data = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
    
    // Uses entire array to build the hash
    crc16.Reset(); // reset seed = 0;
    var crcVal1 = crc16.ComputeHash(data, 0, data.Length);
    
    // Uses chunks of the array to build the hash
    crc16.Reset(); // reset seed = 0;
    var crcSeed1 = crc16.ComputeHash(data, 0, 3);
    var crcSeed2 = crc16.ComputeHash(data, 3, 1);         
    var crcVal2 = crc16.ComputeHash(data, 4, 4); 
    
    // `crcVal1` and `crcVal2` will match.
    
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