I am stuck in this video. Please solve this issue.

This video is about Encryption and Decryption using Win32 API.


In this video 27:07 it's saying "10 IS HEX 5 bytes?" But how?

Please watch this video to understand?

  • 1
    This means 10 is the length of ASCII string in which every char relates a nibble (half byte in hex).
    – strannyi
    Commented Jan 11, 2023 at 8:17
  • 1
    The wording is awkward. He's say that given a hexadecimal string, 10 characters in that string represent 5 bytes.
    – chepner
    Commented Jan 11, 2023 at 16:49

1 Answer 1


The length of 10 is simply the number of characters selected. Each hexadecimal digit requires 4 bits (0..F). So 10 hexadecimal digits take 40 bits (4 bits x 10) or 5 bytes (8 bits x 5).

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