Objective-C

Create CAdES (p7m) Signature using ARSS (Aruba Remote Signing Service)

See more Signing in the Cloud Examples

Demonstrates creating a CAdES (p7m) signature using the Aruba Remote Signing Service. Objective-C

#import <CkoCert.h>
#import <CkoJsonObject.h>
#import <CkoCrypt2.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.

//  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"];

//  Specifies the OTP authentication environment.
//  
//  Common values are:
//    "demoprod" - Demo/Test environment
//    "prod"     - Production environment
//  
//  This value is sent to the ARSS service and determines how the OTP
//  authentication is validated.  The correct value depends on the type
//  of Aruba account and environment that has been provisioned.
//  
//  If signing fails with an authentication-related error, verify that
//  the typeOtpAuth value matches the environment associated with the
//  ARSS account credentials being used.
[jsonArss UpdateString: @"typeOtpAuth" value: @"demoprod"];

[jsonArss UpdateString: @"user" value: @"YOUR_ARSS_USERNAME"];
[jsonArss UpdateString: @"userPWD" value: @"YOUR_ARSS_PASSWORD"];

//  The "endpoint" can be specified starting in Chilkat v11.5.0
[jsonArss UpdateString: @"endpoint" value: @"https://app1.firma-remota.it/ArubaSignerService/webresources/signerservice"];

success = [cert SetCloudSigner: jsonArss];

CkoCrypt2 *crypt = [[CkoCrypt2 alloc] init];

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];

//  You can sign any type of file..
NSString *inputXmlPath = @"qa_data/e-Invoice.xml";
NSString *outputP7mPath = @"qa_output/signed.p7m";

//  Create the CAdES-BES attached signature, which contains the original data.
//  Chilkat will build the .p7m locally, but will (internally) use ARSS
//  to do the RSA signing remotely.
success = [crypt CreateP7M: inputXmlPath p7mPath: outputP7mPath];
if (success == NO) {
    NSLog(@"%@",crypt.LastErrorText);
    return;
}

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