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#N88BASIC

'データを暗号化
Function EnC(in As *Byte, out As *Byte, l As Long) As Long
  Dim Cind As Long
  out[0] = in[0]
  For Cind = 1 To l-1
    out[Cind] = in[Cind]-in[Cind-1]
  Next  

End Function

'データを複合化
Function DeC(in As *Byte, out As *Byte, l As Long) As Long
  Dim Cind As Long
  out[0] = in[0]
  For Cind = 1 To l-1
    out[Cind] = in[Cind]+out[Cind-1]
  Next  
End Function


Function Show(in As *Byte, l As Long) As Long
  Dim Cind As Long
  Dim ele[45] As Byte

  For Cind = 0 To l-1
    wsprintf(ele, "%02x ", in[Cind])
    Print  MakeStr(ele);
  Next
  Print ""
End Function

'testo
Dim in[10] As Byte'元
Dim out[10] As Byte'暗号
Dim out2[10] As Byte'複合

wsprintf(in, "阿部高和")
Show(in, 10)

EnC(in, out, 10)
Show(out, 10)

DeC(out, out2, 10)
Show(out2, 10)