I think that what you are only providing in the list of username and password. In order to decrypt you are also required the password typed by the user... The pattern could then be established, based in username, password-typed resulting in the encryption. Some passwords are independant of username, but you can't assume that. Otherwise, a decryption app will be needed.




>I've never had an occasion to work with encrypted data so these questions may see dumb.
>
>I'm working with an old MS SQL 6.5 database that uses some sort of encryption scheme to store passwords. The passwords are automatically encrypted when added through the interface screen. Security on this system is of a very low concern, as the passwords are always the same as the user logon ID.
>
>I want to added a large groups of users through code and by-pass the interface. I've don't some experimenting and everything is working fine except that I don't know how to encrypt the password (logon ID).
>
>My question is this: Is there a way to develop an encryption program from the examples of data. Listed below are some examples of the data.
>
>Thanks in advacne for any tips,
>Robert Wright
>
>loginID pasword
>eflores ki,+}b@
>mramire h@v=4%f
>doversh 9+Tn}:,
>llesh i74n,
>ymach 7Wn92
>bfuente /i4nbVf
>rwrigh2 LQjpOj
>sloa =27/
>rarceo y9~9,}
>slopez =27y,V
>scord =d7`i
>rita y,[/
>hoale ?=nh,
>rick y,,,
>efigu 9f=^{
>ctell /@Rh`
>pallet 294h,8
>mass ,9{+
>mtina ,@=2^
>rpriddy =4=RWw[
>apina D`=2^
>emora1 9W7`^j
>twood `b7Wi
>duribe t7~nf+
>mcruz ,d~TC
>gthom d@yW+
>xdock @?79=
>jwils R2hR^[
>flesh k2R+2
>arodr D47kw
>dstep tT[d@
>magul ,9WT`
>bbreg vk~dR
>vbreg 4k~dR
>bfran vf~/4
>ewils 9b=hb
>mhawk ,in7=
>ycarte 7dn`~+
>tcart `dn`~
>rsierr yT=dwC
>pcang 2dn2R
>pcango 2dn2R}
>pmane 2Wn2,
>mgarc ,nn`n
>mescob ,^{9Ty
>lgrabo in~/f}
>gberr dkR`w
>ddemi t?RRW
>aguirr Dn}nwC