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(Objective-C) Get Certificate Valid To/From DatesDemonstrates how to get the certificate "valid from" and "valid to" dates. Note: This example requires Chilkat v11.0.0 or greater.
#import <CkoCert.h> #import <CkoDateTime.h> #import <CkoDtObj.h> BOOL success = NO; CkoCert *cert = [[CkoCert alloc] init]; success = [cert LoadFromFile: @"qa_data/certs/testCert.cer"]; if (success == NO) { NSLog(@"%@",cert.LastErrorText); return; } // Get the certificate valid-from date/time CkoDateTime *ckdt = [[CkoDateTime alloc] init]; [ckdt SetFromRfc822: cert.ValidFromStr]; // Get the local timestamp string. NSLog(@"%@%@",@"Valid from: ",[ckdt GetAsTimestamp: YES]); // Valid from: 2017-03-17T19:00:00-05:00 // Now get the date/time as another object where we can get the individual numeric date parts. CkoDtObj *dt = [[CkoDtObj alloc] init]; [ckdt ToDtObj: YES dtObj: dt]; NSLog(@"%d%@%d%@%d%@%d%@%d",[dt.Day intValue],@"/",[dt.Month intValue],@"/",[dt.Year intValue],@" ",[dt.Hour intValue] ,@":",[dt.Minute intValue]); // Get the certificate valid-to date/time [ckdt SetFromRfc822: cert.ValidToStr]; NSLog(@"%@%@",@"Valid to: ",[ckdt GetAsTimestamp: YES]); // Valid to: 2020-03-18T18:59:59-05:00new DtObj dt; [ckdt ToDtObj: YES dtObj: dt]; NSLog(@"%d%@%d%@%d%@%d%@%d",[dt.Day intValue],@"/",[dt.Month intValue],@"/",[dt.Year intValue],@" ",[dt.Hour intValue] ,@":",[dt.Minute intValue]); |
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