e-CryptIt Engine - Checksums Xojo Plugin

CRC8 Class

A class to calculate CRC8 checksums. On strings, bytes or streams.

The class supports the following CRC8 variations:
  • GENERIC
  • ITU
  • ROHC
  • DARC
  • I_CODE
  • J1850
  • MAXIM
  • WCDMA
  • CCITT
  • EBU

    Object
       CRC8

    class CRC8

    Constructors

    CRC8Constructor that takes CRC8MethodEnum selector to choose CRC8 variation.
    CRC8A constructor to create instance of CRC8 with settings for custom variation.

    Properties

    ReferenceInitValueA reference starting value for the CRC for the selected CRC variation.

    Methods

    FinalGets the final checksum from the CRC.
    shared PluginVersionReturns the version number of the plugin.
    ResetResets the CRC stream.
    UpdateUpdates the CRC checksum with a string.
    UpdateByteUpdates the CRC checksum with a single byte
    UpdateMemoryBlockUpdates the CRC checksum with a memory block taking all bytes from the block.
    UpdateMemoryBlockUpdates the CRC checksum with a memory block taking selected bytes from the block.

    Enumerations

    CRC8MethodEnumA enum to supply for the CRC8 constructor to choose CRC8variation.

    Examples

    Dim crc as CRC8 = new CRC8(CRC8.CRC8MethodEnum.CRC8_GENERIC)
    Dim value8 as UInt8
    Dim testData as String = "123456789"

    testData = testData.ConvertEncoding(Encodings.ASCII)

    value8 = crc.Update(testData, crc.ReferenceInitValue)
    MsgBox(testData,Hex(crc.Final(value8))

    Supported Platforms:

  • MacOS X Cocoa 32 bit
  • MacOS X Cocoa 64 bit
  • Windows 32 bit
  • Windows 64 bit
  • Linux 32 bit
  • Linux 64 bit
  • Linux ARM

    Unsupported Platforms:

  • MacOS X Carbon