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SecurityLocalGenerateHashMACSHA256

Valid for: CANoe DE • CANoe4SW DE

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Function Syntax

long SecurityLocalGenerateHashMACSHA256(byte key[], dword keyLength, byte data[], dword dataLength, byte* hashMac)

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Description

Generates a SHA256 hash for the given data, using the given key.

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Parameters

  • byte key[]: The key to be used.
  • dword keyLength: 16 (bytes).
  • byte data[]: The data to encrypt.
  • dword dataLength: The length of the data to encrypt.
  • *byte hashMac[Out]**: The generated SHA256 hash MAC.

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Return Values

  • 1: Success
    A Value of 1 means that the action was successful.
  • <= 0: Error
    A value less than or equal to 0 means error.

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Example

byte key[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

byte data[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

byte refOutput[32] = {0x85, 0x3C, 0x74, 0x03, 0x93, 0x7D, 0x8B, 0x62, 0x39, 0x56, 0x9B, 0x18, 0x4E, 0xB7, 0x99, 0x3F, 0xC5, 0xF7, 0x51, 0xAE, 0xFC, 0xEA, 0x28, 0xF2, 0xC8, 0x63, 0x85, 0x8E, 0x2D, 0x29, 0xC5, 0x0B};

dword refOutputLength = 32;
byte output[32];
dword result = 255;
result = SecurityLocalGenerateHashMACSHA256(key, elCount(key), data, elCount(data), output);