Why a flip a bin before hashing in this script?

Question

function binFlipByteOrder($string) {
    return implode('', array_reverse(str_split($string, 1)));
}

Why a flip?

score 3 · Accepted Answer · answered Nov 26 '18 at 15:28

3

Hashes are big endian by standard, and most computers use little endian, so it's probably just for convenience. See Why does the Bitcoin protocol use the little-endian notation?

answered Nov 26 '18 at 15:28

JBaczuk

Ok thanks you! (I suspected the Lilliputians..) – Nicolas Cantu Nov 26 '18 at 15:37
haha they are alive and well in Bitcoin... :) – JBaczuk Nov 26 '18 at 15:37
Of course it's a little big part of Internet (Cohen) and a community story :) So they are well in Bitcoin :) – Nicolas Cantu Nov 27 '18 at 00:26

1 Answers1