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(Objective-C) Sign PDF using ARSS (Aruba Remote Signing Service)See more Signing in the Cloud ExamplesDemonstrates how to sign a PDF using the Aruba Remote Signing Service (ARSS). Note: This example requires Chilkat v9.5.0.96 or greater.
#import <CkoPdf.h> #import <CkoJsonObject.h> #import <CkoCert.h> // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkoPdf *pdf = [[CkoPdf alloc] init]; // Load a PDF to be signed. BOOL success = [pdf LoadFile: @"qa_data/pdf/hello.pdf"]; if (success == NO) { NSLog(@"%@",pdf.LastErrorText); return; } // Options for signing are specified in JSON. CkoJsonObject *json = [[CkoJsonObject alloc] init]; // Indicate that we want an LTV-enabled signature [json UpdateBool: @"ltvOcsp" value: YES]; // Define the appearance of the signature. [json UpdateInt: @"page" value: [NSNumber numberWithInt: 1]]; [json UpdateString: @"appearance.y" value: @"top"]; [json UpdateString: @"appearance.x" value: @"left"]; [json UpdateString: @"appearance.fontScale" value: @"10.0"]; [json UpdateString: @"appearance.text[0]" value: @"Digitally signed by: cert_cn"]; [json UpdateString: @"appearance.text[1]" value: @"current_dt"]; [json UpdateString: @"appearance.text[2]" value: @"This is an LTV-enabled signature."]; // Load the certificate used for signing. The certificate's private key is stored on // the Aruba.it server and the signing will happen remotely using the // ARSS (Aruba Remote Signing Service). // However, we still need the certificate locally (without private key). CkoCert *cert = [[CkoCert alloc] init]; success = [cert LoadFromFile: @"qa_data/certs/myCert.cer"]; if (success == NO) { NSLog(@"%@",cert.LastErrorText); return; } // To sign using the Aruba Remote Signing Service, // add the following lines of code to specify your authentication credentials, // and the ID of the certificate w/ private key on the server to be used. CkoJsonObject *jsonArss = [[CkoJsonObject alloc] init]; // Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing. [jsonArss UpdateString: @"service" value: @"ARSS"]; // Specify the certificate ID, such as "AS0" // This certificate should match the certificate loaded in the above code. [jsonArss UpdateString: @"certID" value: @"YOUR_ARSS_CERT_ID"]; [jsonArss UpdateString: @"otpPwd" value: @"YOUR_OTP_PWD"]; [jsonArss UpdateString: @"typeOtpAuth" value: @"demoprod"]; [jsonArss UpdateString: @"user" value: @"YOUR_ARSS_USERNAME"]; [jsonArss UpdateString: @"userPWD" value: @"YOUR_ARSS_PASSWORD"]; success = [cert SetCloudSigner: jsonArss]; // Tell the pdf object to use the certificate for signing. success = [pdf SetSigningCert: cert]; if (success == NO) { NSLog(@"%@",pdf.LastErrorText); return; } // Chilkat will build the signed PDF locally, but will (internally) use ARSS // to do the RSA sign hash operation. success = [pdf SignPdf: json outFilePath: @"qa_output/hello_ltv_signed.pdf"]; if (success == NO) { NSLog(@"%@",pdf.LastErrorText); return; } NSLog(@"%@",@"The PDF has been successfully cryptographically signed with long-term validation."); |
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