Getting DN information from cert crashes

[Jon M. <jon...@ma...>]

Hi,

I have problems using the keychain framework to list the DN of a cert. I
want to retrieve the Subject, Issuer and other stuff from the cert as
strings. The following code crashed both on 10.3.5 and 10.4 DP.


Keychain *theKeychain = [[Keychain defaultKeychain] retain];
NSArray* identities = [theKeychain identities];
Identity *curIdentity = nil;
NSEnumerator *enumerator = nil;

enumerator = [identities objectEnumerator];
while (curIdentity = (Identity*)[enumerator nextObject]) {

	Certificate* certificate = [[curIdentity certificate] retain];
	NameList* nl = [[certificate issuer] retain];
	NameListEnumerator* enumerator = [NameListEnumerator
enumeratorForNameList:nl];
	DistinguishedName* dn = [[enumerator nextObject] retain]; // get first
object only
	BOOL classok = [dn isKindOfClass:[DistinguishedName class]];

>>>>> crashes here when requsting  subject, run inifinite when requesting
issuer.
	NSLog(@"string %@", [dn description]);


	DistinguishedNameEnumerator* dnenumerator = 
[DistinguishedNameEnumerator
enumeratorForDistinguishedName:dn];
	TypeValuePair* tvp = nil;
	while (tvp = [dnenumerator nextObject]) {
		[tvp retain];
		classok = [tvp isKindOfClass:[TypeValuePair class]];
		NSString *d = [tvp description];
		NSString *t = [tvp typeAsString];
		NSLog(@"string %@", d);
		NSLog(@"string %@", t);
		}
	}
}


Regards
Jon