Go

HMAC Hex String

See more Encryption Examples

Demonstrates how to compute an HMAC using a hexidecimal key and data. Go

    success := false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    crypt := chilkat.NewCrypt2()

    // Set the MAC algorithm to HMAC
    crypt.SetMacAlgorithm("hmac")

    // Our HMAC key will be the bytes represented in the following hex string.
    // In other words, the HMAC key is composed of the bytes 0x41, 0xC2, 0x1C, ...
    // (It is not composed of the us-ascii string '4', '1', 'C', ...)
    keyHex := "41C21CB9D7A02FC5D4FADB9E4755B9DE"
    success = crypt.SetMacKeyEncoded(keyHex,"hex")

    // Our desire is to HMAC the bytes represented in the following string:
    dataHex := "C22078065B01460001000000010062043BF5B18228C8E02D17BCFE4E00561FA6DEC216EA97195CEB579942E275C21932258E3CD391E507FF4E7FD4C787A8447DA111C54A9C1795E7FF4C0BAA2EDA"

    // We'll need to decode the hex to binary:
    bd := chilkat.NewBinData()
    bd.AppendEncoded(dataHex,"hex")

    // Do the HMAC-SHA256 hash and return as a hex string:
    crypt.SetEncodingMode("hex")
    crypt.SetHashAlgorithm("sha-256")
    macHex := crypt.MacBdENC(bd)
    fmt.Println(*macHex)

    crypt.DisposeCrypt2()
    bd.DisposeBinData()