Converting Hex to Base64 with notepad++
The trick was that by converting the HEX directly in notepad++, It's taken as a ASCII value not as A HEX Value as intended.
So we need to converted first the HEX --> ASCII then ASCII --> BASE64
1/ Select the string
2/ Using Notepad++ menu: Plugins -> Converter -> HEX -> ASCII
3/ Plugins -> MIME Tools -> Base64 Encode
and we get the needed value
The characters FB
can be encoded as the 16-bit values 46004200
and encoding that in Base 64 gives RkI=
.
Using Notepad++ menu => TextFx => TextFx Tools => Base 64 decode:
- Converting
+w==
gives the single bytexFB
. It show as thouse three characters in white on a black background. The status bar at the bottom of the window shows the buffer has a length of1
(i.e. one). - Converting
RkI=
gives the two charactersFB
. Shown in black on a white background, i.e. as normal text. The buffer is shown to have a length of 2.
Conclusion, your initial conversion was of the two charactgers FB
not the byte with value hex-FB.