Java

Example: Crypt2.GetSignedAttributes method

Demonstrates how to call the GetSignedAttributes method. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkCrypt2 crypt = new CkCrypt2();

    CkBinData bdPkcs7 = new CkBinData();
    success = bdPkcs7.LoadFile("qa_data/cades/CAdES-T/Signature-C-T-1.p7m");
    if (success == false) {
        System.out.println(bdPkcs7.lastErrorText());
        return;
        }

    CkJsonObject json = new CkJsonObject();
    json.put_EmitCompact(false);

    CkStringBuilder sbJson = new CkStringBuilder();
    int i = 0;
    boolean tryNext = true;
    while (tryNext) {
        if (crypt.GetSignedAttributes(i,bdPkcs7,sbJson) == true) {
            json.LoadSb(sbJson);
            System.out.println(i + ": ");
            System.out.println(json.emit());
            }
        else {
            tryNext = false;
            }

        i = i+1;
        }

    //  Sample output:

    //  0: 
    //  {
    //    "signedAttributes": [
    //      {
    //        "oid": "1.2.840.113549.1.9.3",
    //        "name": "Content Type"
    //      },
    //      {
    //        "oid": "1.2.840.113549.1.9.5",
    //        "name": "Signing Time"
    //      },
    //      {
    //        "oid": "1.2.840.113549.1.9.4",
    //        "name": "Message Digest"
    //      },
    //      {
    //        "oid": "1.2.840.113549.1.9.16.2.47",
    //        "name": "Signing Certificate V2"
    //      }
    //    ]
    //  }
  }
}