Note that IVs only affect block cipher modes other than ECB mode. ECB mode ignores IVs completely.
J Titu Kim wrote: > Hi, > I am using libmcrypt-2.5.3 to do encryption in php. > I use exactly the steps provided in mcrypt_module_open > available on php website > http://php.benscom.com/manual/en/function.mcrypt-module-open.php > > I can encrypt and decrypt a string correctly. However, > if i encrypt a cookie to write to user's browser, the > decryption is incorrect when i try to decrypt this > cookie when user comes again. I found out the main > cause is the function mcrypt_module_open. This > function return a different resource everytime it is > called. Eventually it cause the decryption on cookie > to be incorrect. Can someone give me suggestion on how > to encrypt and decrypt a cookie? > > Thanks very much. > > Kim > > __________________________________________________ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > http://mailplus.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
