I graduated in 1990 in Electrical Engineering and since then I have been in university, doing research in the field of DSP. To me programming is more a tool than a job.
Often those sites have also a set of "forbidden" characters, a really, really, really smelly practice... Most probably they store the passwords in plain text and process them as strings....
Probably a symptom of that they're not hashing their passwords, but storing them as varchar(25) in their database as plain text. I'd stay far away from such sites if I was you ... ;)
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And some sites have max password length restriction, which is even dumber.
Often those sites have also a set of "forbidden" characters, a really, really, really smelly practice... Most probably they store the passwords in plain text and process them as strings....
Probably a symptom of that they're not hashing their passwords, but storing them as varchar(25) in their database as plain text. I'd stay far away from such sites if I was you ... ;)