diff -r 058394513f33 -r d0aadddb9c64 MYCertificateInfo.h
--- a/MYCertificateInfo.h	Sat Jun 06 15:36:35 2009 -0700
+++ b/MYCertificateInfo.h	Tue Jul 21 10:13:08 2009 -0700
@@ -14,6 +14,7 @@
 {
     @private
     NSArray *_root;
+    NSData *_data;
 }
 
 /** Initialize by parsing X.509 certificate data.
@@ -35,6 +36,10 @@
 /** Returns YES if the issuer is the same as the subject. (Aka a "self-signed" certificate.) */
 @property (readonly) BOOL isRoot;
 
+/** Verifies the certificate's signature, using the given public key.
+    If the certificate is root/self-signed, use the cert's own subject public key. */
+- (BOOL) verifySignatureWithKey: (MYPublicKey*)issuerPublicKey;
+
 @end