If all I needed was detection I could just XOR all letters and append the result... | Hacker News

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		DenisM on March 25, 2020 \| parent \| context \| favorite \| on: Reading "Error Detecting and Error Correcting Code... If all I needed was detection I could just XOR all letters and append the result.

dexen on March 25, 2020 [–]

This doesn't detect a transposition error, which is somewhat common with humans. That's why in EAN-13 and similar codes, the checksum takes digits with varying weights.

DenisM on March 25, 2020 | [–]

doh. tank you!

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