Unpad a PKCS7 pad from a block cipher

gistfile1.go

// http://play.golang.org/p/YfMF5mG3v2

func UnPKCS7Padding(data []byte) []byte {
    dataLen := len(data)

	// Grab the last byte which is *always* the pad byte for the password implementation
	endIndex := int(data[dataLen-1])

	fmt.Println(data[dataLen-1])

	if endIndex <= 16 {
		if 1 < endIndex {
			for i := dataLen - endIndex; i < dataLen; i++ {
				if data[dataLen-1] != data[i] {
					// Different byte codes, the tail byte code:
					// bang
				}
			}
		}

		return data[:dataLen-endIndex]
	}

	return nil
}