Any Blowfish (or other encryption) implementation in MQL4?

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is there any existing blowfish or other encryption scheme implementation in MQL4?

i am looking for something to generate and verify software key for my EA.

thanks.

 

also, how big of a number can MQL4 handle?

i was trying to implement an encryption scheme on my own, but MQL4 doesn't seem to be able to handle very large numbers (27 power of 47, not too big, is it?)

 

any encryption will be worthless unless the mql-code can be re-engineered.

maybe mql5 brings some improvements concerning this issue.

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