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encryption
Hi,
I have an encryption logic which is as below, which encrypts and alphabet to alphabet
The input is passed in this (----) place
select chr(mod(ascii(----) - ascii('a') + 541 , ascii('z') - ascii('a')) + ascii('a')) from dual
541 is a seed value based on userid which changes for different logins.
With this (a) and (z) are encrypted to the same value, and hence i am facing problems in decrypting.
can somebody help in changing the above encrption logic.
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