ESYAE-imza Kütüphaneleri

Signature creation consists of two steps which are the validation of the signing certificate and creation of the signature.

BaseSignedData is responsible for data signing. Firstly, by using the method addContent(…) the data to be signed must be defined. This method must be called only once. The data to be signed can not be modified once it is assigned by addContent(…). The signer information is defined by using addSigner(…). This function takes the type of the signature, the certificate of the signer, the properties of the crypto device that will perform the signature creation, and other signature properties as parameters. The sample code for signature creation is as follows:

BaseSignedData bs = new BaseSignedData();
ISignable content = new SignableByteArray("test".getBytes());
bs.addContent(content);
				
HashMap<String, Object> params = new HashMap<String, Object>();
		
//if the user does not want certificate validation at generating signature,he can add 
//P_VALIDATE_CERTIFICATE_BEFORE_SIGNING parameter with its value set to false
//params.put(EParameters.P_VALIDATE_CERTIFICATE_BEFORE_SIGNING, false);

//necessary for certificate validation.By default,certificate validation is done 
params.put(EParameters.P_CERT_VALIDATION_POLICY, TestConstants.getPolicy());
				
//By default, QC statement is checked,and signature wont be created if it is not a 
//qualified certificate. 
boolean checkQCStatement = TestConstants.getCheckQCStatement();
				
//Get qualified or non-qualified certificate.
ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);
		
//add signer
//Since the specified attributes are mandatory for bes,null is given as parameter 
//for optional attributes
bs.addSigner(ESignatureType.TYPE_BES, cert , signer, null, params);
		
SmartCardManager.getInstance().logout();
		
byte [] signedDocument = bs.getEncoded();
		
//write the contentinfo to file
AsnIO.dosyayaz(signedDocument,TestConstants.getDirectory() + "testdata/BES-1.p7s");

BaseSignedData bs = new BaseSignedData();
ISignable content = new SignableByteArray(ASCIIEncoding.ASCII.GetBytes("test"));
bs.addContent(content);

Dictionary<String, Object> params_ = new Dictionary<String, Object>();
//if the user does not want certificate validation at generating signature,he can add 
//P_VALIDATE_CERTIFICATE_BEFORE_SIGNING parameter with its value set to false
params_[EParameters.P_VALIDATE_CERTIFICATE_BEFORE_SIGNING] = false;

//necessary for certificate validation.By default,certificate validation is done 
params_[EParameters.P_CERT_VALIDATION_POLICY] = TestConstants.getPolicy();

//By default, QC statement is checked,and signature wont be created if it is not a 
//qualified certificate. 

bool checkQCStatement = TestConstants.getCheckQCStatement();
            
//Get qualified or non-qualified certificate.
  ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);

//add signer
 //Since the specified attributes are mandatory for bes,null is given as parameter 
//for optional attributes
try
{
bs.addSigner(ESignatureType.TYPE_BES, cert, signer, null, params_);
}
catch (CertificateValidationException cve)
{              Console.WriteLine(cve.getCertStatusInfo().getDetailedMessage());
   }
            

SmartCardManager.getInstance().logout();

byte[] signedDocument = bs.getEncoded();

//write the contentinfo to file
DirectoryInfo di = Directory.CreateDirectory(TestConstants.getDirectory()+@"\testVerileri");
            AsnIO.dosyayaz(signedDocument, di.FullName + @"\BES-1.p7s");

A document can be signed by more than one person. Multiple signatures can be in two forms:

1. Parallel Signature
2. Counter Signature

In this form, all signers sign the same data and all signatures are in the same level in the sign tree. All signatures are independent meaning that extraction of one signature does not affects the validity of the others.

byte [] signature = AsnIO.dosyadanOKU(SIGNATURE_FILE);
BaseSignedData bs = new BaseSignedData(signature); 
				
//create parameters necessary for signature creation 
HashMap<String, Object> params = new HashMap<String, Object>(); 
ValidationPolicy policy =  PolicyReader.readValidationPolicy(new FileInputStream(POLICY_FILE)); 
params.put(EParameters.P_CERT_VALIDATION_POLICY, policy);
/*necessary for certificate validation.By default,certificate validation is done.But if the user does not want certificate validation,he can add P_VALIDATE_CERTIFICATE_BEFORE_SIGNING parameter with its value set to false*/		
		
//By default, QC statement is checked,and signature wont be created if it is not a 
//qualified certificate. 
boolean checkQCStatement = TestConstants.getCheckQCStatement();
				
//Get qualified or non-qualified certificate.
ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);
		
//add signer. Since the specified attributes are mandatory for bes,null is given as parameter for 
//optional attributes 
bs.addSigner(ESignatureType.TYPE_BES, cert , signer, null, params); 
				
//write the contentinfo to file 
AsnIO.dosyayaz(bs.getEncoded(),NEW_SIGNATURE_ADDED_FILE);	
sc.logout(session); 

SmartCardManager.getInstance().logout();

byte[] signature = AsnIO.dosyadanOKU(SIGNATURE_FILE);
BaseSignedData bs = new BaseSignedData(signature);

//create parameters necessary for signature creation 
Dictionary<String, Object> params_ = new Dictionary<String, Object>();
ValidationPolicy policy = PolicyReader.readValidationPolicy(new FileStream(POLICY_FILE,  
FileMode.Open, FileAccess.Read));
params_[EParameters.P_CERT_VALIDATION_POLICY] = policy;

/*necessary for certificate validation.By default,certificate validation is done.But if the user does not want certificate validation,he can add P_VALIDATE_CERTIFICATE_BEFORE_SIGNING parameter with its value set to false*/

bool checkQCStatement = TestConstants.getCheckQCStatement();
            
//Get qualified or non-qualified certificate.
ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);

//add signer. Since the specified attributes are mandatory for bes,null is given as parameter for 
//optional attributes 
bs.addSigner(ESignatureType.TYPE_BES, cert, signer, null, params_);

//write the contentinfo to file 
AsnIO.dosyayaz(bs.getEncoded(), NEW_SIGNATURE_ADDED_FILE);

SmartCardManager.getInstance().logout();

Veriyi imzalayan imzanın imzalanmasıdır. Dolayısıyla bir imzacının imzası çıkartılırsa o imzacıdan sonra imza atan imzacıların da imzalarının çıkartılması gerekmektedir. Aşağıdaki kod örneğinde ilk imzacıya seri imza ekleniyor.

byte [] signature = AsnIO.dosyadanOKU(SIGNATURE_FILE);
BaseSignedData bs = new BaseSignedData(signature);
				
//create parameters necessary for signature creation 
HashMap<String, Object> params = new HashMap<String, Object>(); 
ValidationPolicy policy =  PolicyReader.readValidationPolicy(new FileInputStream(POLICY_FILE));
params.put(EParameters.P_CERT_VALIDATION_POLICY, policy); 
/*necessary for certificate validation.By default,certificate validation is done.But if the user does not want certificate validation,he can add P_VALIDATE_CERTIFICATE_BEFORE_SIGNING parameter with its value set to false*/
					
//By default, QC statement is checked,and signature wont be created if it is not a 
//qualified certificate. 
boolean checkQCStatement = TestConstants.getCheckQCStatement();
				
//Get qualified or non-qualified certificate.
ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);
		
Signer firstSigner = bs.getSignerList().get(0); 

firstSigner.addCounterSigner(ESignatureType.TYPE_BES, cert , signer, null, params); 
				
//write the contentinfo to file 
AsnIO.dosyayaz(bs.getEncoded(),NEW_SIGNATURE_ADDED_FILE);	
SmartCardManager.getInstance().logout();

byte[] signature = AsnIO.dosyadanOKU(SIGNATURE_FILE);
BaseSignedData bs = new BaseSignedData(signature);

//create parameters necessary for signature creation 
Dictionary<String, Object> params_ = new Dictionary<String, Object>();
ValidationPolicy policy = PolicyReader.readValidationPolicy(new FileStream(POLICY_FILE, 
FileMode.Open, 
FileAccess.Read));
params_[EParameters.P_CERT_VALIDATION_POLICY] = policy;
/*necessary for certificate validation.By default,certificate validation is done.But if the user does not want certificate validation,he can add P_VALIDATE_CERTIFICATE_BEFORE_SIGNING parameter with its value set to false*/

bool checkQCStatement = TestConstants.getCheckQCStatement();
            
//Get qualified or non-qualified certificate.
ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);

Signer firstSigner = bs.getSignerList()[0];

firstSigner.addCounterSigner(ESignatureType.TYPE_BES, cert, signer, null, params_);

//write the contentinfo to file 
AsnIO.dosyayaz(bs.getEncoded(), NEW_SIGNATURE_ADDED_FILE);
SmartCardManager.getInstance().logout();

Ayrık imzada imzalanacak veri BaseSignedData.addContent(…) fonksiyonunun ikinci parametresi false verilerek atanır. Bütünleşik imza ile büyük boyutlu dosyalar imzalanamaz. İmzanın yapısı gereği imzalanacak verinin hepsi belleğe alınmaktadır. Bundan dolayı büyük boyutlu dosyaların imzalanması için ayrık imza kullanmak gerekmektedir.

BaseSignedData bs = new BaseSignedData();
		
File file = new File(MOVIE_FILE);
ISignable signable = new SignableFile(file,2048);
bs.addContent(signable,false);
				
//create parameters necessary for signature creation
HashMap<String, Object> params = new HashMap<String, Object>();
		
ValidationPolicy policy =  PolicyReader.readValidationPolicy(new FileInputStream(POLICY_FILE)); 
params.put(EParameters.P_CERT_VALIDATION_POLICY, policy);
		
//By default, QC statement is checked,and signature wont be created if it is not a 
//qualified certificate. 
boolean checkQCStatement = TestConstants.getCheckQCStatement();
				
//Get qualified or non-qualified certificate.
ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);
		
bs.addSigner(ESignatureType.TYPE_BES, cert, signer, null, params);
	
AsnIO.dosyayaz(bs.getEncoded(), SIGNATURE_FILE);
		
SmartCardManager.getInstance().logout();

BaseSignedData bs = new BaseSignedData();

FileInfo file = new FileInfo(MOVIE_FILE);
ISignable signable = new SignableFile(file, 2048);
bs.addContent(signable, false);

//create parameters necessary for signature creation
Dictionary<String, Object> params_ = new Dictionary<String, Object>();

ValidationPolicy policy = PolicyReader.readValidationPolicy(new FileStream(POLICY_FILE,
FileMode.Open, 
FileAccess.Read));
params_[EParameters.P_CERT_VALIDATION_POLICY] = policy;

bool checkQCStatement = TestConstants.getCheckQCStatement();
            
//Get qualified or non-qualified certificate.
ECertificate cert = SmartCardManager.getInstance().getSignatureCertificate(checkQCStatement, !checkQCStatement);
BaseSigner signer = SmartCardManager.getInstance().getSigner(TestConstants.getPIN(), cert);

bs.addSigner(ESignatureType.TYPE_BES, cert, signer, null, params_);

AsnIO.dosyayaz(bs.getEncoded(), SIGNATURE_FILE);

SmartCardManager.getInstance().logout();

İmzalanan içerik attachExternalContent fonksiyonuna verilerek, ayrık imza bütünleşik imzaya dönüştürülebilir.

byte[] input = AsnIO.dosyadanOKU(AYRIK_IMZA);
BaseSignedData bs = new BaseSignedData(input);
		
File file = new File(IMZALANAN_ICERIK);
ISignable signable = new SignableFile(file,2048);
bs.attachExternalContent(signable);

byte[] input = AsnIO.dosyadanOKU(AYRIK_IMZA);
BaseSignedData bs = new BaseSignedData(input);

FileInfo file = new FileInfo(IMZALANAN_ICERIK);
ISignable signable = new SignableFile(file, 2048);
bs. attachExternalContent(signable);