Text Encryption

 

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Just create a text field "entext" and two buttons, one for encryption and one for decryption. Attach the codes and start encrypting.

Logic for encryption ******************** global ftext -- Each element in this list is a character entered in the field "entext" global keylist -- A list containing the key generated for each character. global orvalues -- A list containing the original ascii values. global tch global decr -- A flag set when decryption is activated global encr -- A flag which is set when encryption is activated. property totchars -- Total number of characters entered in field "entext" property tchar property rkey -- A random number between -700 and 700 which is added to the ascii value of -- each character entered. on mouseUp   if encr = 0 then     x =  the text of field "entext"     if x = "" then       alert "Please enter text into the field"       updatestage     end if     totchars = the number of chars of field "entext"     tch = totchars     repeat with y = 1 to totchars       append ftext, char y of field "entext"       updatestage     end repeat     set the text of field "entext" to empty     repeat with z = 1 to totchars       -- Adding a random key generated to the key list       rkey = random(-700,700)       append keylist, rkey       put keylist       tchar = chartonum(ftext[z]) + rkey       append orvalues, tchar       put tchar after member "entext"     end repeat     encr = 1     decr = 0   else     nothing   end if end ************************************************************ Logic for Decryption ******************** global keylist global orvalues global tch global decr global encr property tvar on mouseUp   if decr = 0 then     set the text of field "entext" to empty     updatestage     repeat with s = 1 to tch       tvar = numtochar(orvalues[s] - keylist[s])       put tvar after field "entext"       updatestage     end repeat     decr = 1     encr = 0   else     nothing   end if end