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Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Favorites infavorites:mine
infavorites:1234
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duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
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Results tagged with Search options user 4731

File format refers to the way information and data is encoded and stored in a computer file.

2
votes
It's a simple exclusive-or (^) operation with the byte 0x5A. With your examples - 'a' 0x61 ^ 0x5A = 0x3B 'b' 0x62 ^ 0x5A = 0x38 'z' 0x7A ^ 0x5A = 0x20 Plus some others you should be able to check …
answered Oct 23 '18 by Ian Cook