(VB.NET) UN/EDIFACT Syntax Level A Encoding/Decoding

Demonstrates the new "eda" encoding that can be used throughout Chilkat starting in v9.5.0.65.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

' Note: Requires Chilkat v9.5.0.65 or greater.

Dim sb As New Chilkat.StringBuilder
sb.Append("The 5 men of 223rd St")
Debug.WriteLine(sb.GetAsString())

' Encode the utf-8 byte representation of the string in the 
' UN/EDIFACT syntax level A character set.
sb.Encode("eda","utf-8")
Debug.WriteLine(sb.GetAsString())

' EDA Output should be: BTME027FCF6CFARFI94JT6.)F(14KJ2U


' Decode back to the original string.
sb.Decode("eda","utf-8")
Debug.WriteLine(sb.GetAsString())
Debug.WriteLine("----")


' The following requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' The "eda" encoding can be used anywhere within Chilkat.
' For example, with the Crypt2 API
Dim crypt As New Chilkat.Crypt2
crypt.CryptAlgorithm = "aes"
crypt.CipherMode = "cbc"
crypt.KeyLength = 256
crypt.EncodingMode = "eda"

Dim ivHex As String = "000102030405060708090A0B0C0D0E0F"
crypt.SetEncodedIV(ivHex,"hex")
Dim keyHex As String = "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F"
crypt.SetEncodedKey(keyHex,"hex")

Dim encStr As String = crypt.EncryptStringENC("The quick brown fox jumps over the lazy dog.")
' The output is UN/EDIFACT syntax level A 
Debug.WriteLine(encStr)

' Now decrypt:
Dim decStr As String = crypt.DecryptStringENC(encStr)
Debug.WriteLine(decStr)