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Objective-C

Italian FatturaPA (e-Invoice) Signed XML (CADES-BES P7M) using USB SmartCard Reader

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Demonstrates Italian e-Invoice (FatturaPA) signing by using a private key stored on a USB smartcard reader.

Chilkat Objective-C Downloads

Objective-C
#import <CkoCrypt2.h>
#import <CkoCert.h>
#import <CkoJsonObject.h>
#import <NSString.h>

BOOL success = NO;

//  This example assumes the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

CkoCrypt2 *crypt = [[CkoCrypt2 alloc] init];
crypt.VerboseLogging = YES;

CkoCert *cert = [[CkoCert alloc] init];
//  Use your smart card user PIN for signing.
cert.SmartCardPin = @"0000";

success = [cert LoadFromSmartcard: @""];
if (success == NO) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

success = [crypt SetSigningCert: cert];
if (success == NO) {
    NSLog(@"%@",crypt.LastErrorText);
    return;
}

//  The CadesEnabled property applies to all methods that create PKCS7 signatures. 
//  To create a CAdES-BES signature, set this property equal to true.
crypt.CadesEnabled = YES;

crypt.HashAlgorithm = @"sha256";

CkoJsonObject *signedAttrs = [[CkoJsonObject alloc] init];
[signedAttrs UpdateInt: @"contentType" value: [NSNumber numberWithInt: 1]];
[signedAttrs UpdateInt: @"signingTime" value: [NSNumber numberWithInt: 1]];
[signedAttrs UpdateInt: @"messageDigest" value: [NSNumber numberWithInt: 1]];
[signedAttrs UpdateInt: @"signingCertificateV2" value: [NSNumber numberWithInt: 1]];
crypt.SigningAttributes = [signedAttrs Emit];

//  Load XML such as the following:
//   <p:FatturaElettronica xmlns:p="http://ivaservizi.agenziaentrate.gov.it/docs/xsd/fatture/v1.2" versione="FPR12">
//      <FatturaElettronicaHeader>
//         <DatiTrasmissione>
//  	...
//         </DatiTrasmissione>
//         <CedentePrestatore>
//  	...
//         </CedentePrestatore>
//         <CessionarioCommittente>
//  	...
//         </CessionarioCommittente>
//      </FatturaElettronicaHeader>
//      <FatturaElettronicaBody>
//         <DatiGenerali>
//            <DatiGeneraliDocumento>
//  		...
//            </DatiGeneraliDocumento>
//         </DatiGenerali>
//         <DatiBeniServizi>
//  	...
//         </DatiBeniServizi>
//      </FatturaElettronicaBody>
//   </p:FatturaElettronica>

NSString *inputXmlPath = @"c:/someDir/e-Invoice.xml";
NSString *outputP7mPath = @"c:/someDir/signed.p7m";

//  Create the CAdES-BES attached signature, which contains the original data.
success = [crypt CreateP7M: inputXmlPath p7mPath: outputP7mPath];
if (success == NO) {
    NSLog(@"%@",crypt.LastErrorText);
    return;
}

NSLog(@"%@",@"Success.");