hi
new objective-c , finding difficult grasp how works.
anyways, code below retrieves encrypted xml plist file server , decrypts use in iphone app. discovered encryption whole big issue don't want deal right now, need remove encryption part (i have no problem doing on server side).
it's this:
server side: xml plist file > encrypt > base64encode
iphone side: request , receive file > base64decode > decrypt > xml plist file.
need remove decrypt part, it's this:
server side: xml plist file > base64encode
iphone side: request , receive file > base64decode > xml plist file.
have played code can't right. appreciated. sure it's seckeywrapper, not able remove it.
thanks
code:-(void)sync{ nsurl *url = [nsurl urlwithstring:@"http://www.mydomain.com/plist-settings.php"]; //retrieve file nsurlrequest *request = [nsurlrequest requestwithurl:url cachepolicy:nsurlrequestreloadignoringlocalcachedata timeoutinterval:5.0]; [nsurlconnection connectionwithrequest:request delegate:self]; sync_data = [[nsmutabledata alloc] init]; } - (void)connection:(nsurlconnection *)connection didreceivedata:(nsdata *)_data{ [sync_data appenddata:_data]; } - (void)connectiondidfinishloading:(nsurlconnection *)connection{ char * key = "(masfi14%12as./*"; nsdata * symmetrickey = [nsdata datawithbytes:key length:16]; ccoptions pad = kccoptionecbmode; nsmutabledata *thedata = [[nsdata datafrombase64string:[[nsstring alloc] initwithdata:sync_data encoding:nsutf8stringencoding]] mutablecopy]; if ([thedata length] == 0) { [thedata release]; return; } sync_data = [[[seckeywrapper sharedwrapper] docipher:thedata key:symmetrickey context:kccdecrypt padding:&pad] mutablecopy]; [thedata release]; nsdictionary *dictserver = nil; cfpropertylistref plist = cfpropertylistcreatefromxmldata(kcfallocatordefault,(cfdataref)sync_data, kcfpropertylistimmutable, null);
i suggest mapping each of steps code, in order make things clearer:
now have remove relevant step... luckcode:sync_data --> base64decode --> thedata thedata --> decrypt --> sync_data sync_data --> xml plist --> plist![]()
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