Unicode C

Example: Crypt2.GetSignedAttributes method

Demonstrates how to call the GetSignedAttributes method. Unicode C

#include <C_CkCrypt2W.h>
#include <C_CkBinDataW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkStringBuilderW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCrypt2W crypt;
    HCkBinDataW bdPkcs7;
    HCkJsonObjectW json;
    HCkStringBuilderW sbJson;
    int i;
    BOOL tryNext;

    success = FALSE;

    crypt = CkCrypt2W_Create();

    bdPkcs7 = CkBinDataW_Create();
    success = CkBinDataW_LoadFile(bdPkcs7,L"qa_data/cades/CAdES-T/Signature-C-T-1.p7m");
    if (success == FALSE) {
        wprintf(L"%s\n",CkBinDataW_lastErrorText(bdPkcs7));
        CkCrypt2W_Dispose(crypt);
        CkBinDataW_Dispose(bdPkcs7);
        return;
    }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_putEmitCompact(json,FALSE);

    sbJson = CkStringBuilderW_Create();
    i = 0;
    tryNext = TRUE;
    while (tryNext) {
        if (CkCrypt2W_GetSignedAttributes(crypt,i,bdPkcs7,sbJson) == TRUE) {
            CkJsonObjectW_LoadSb(json,sbJson);
            wprintf(L"%d: \n",i);
            wprintf(L"%s\n",CkJsonObjectW_emit(json));
        }
        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"
    //      }
    //    ]
    //  }


    CkCrypt2W_Dispose(crypt);
    CkBinDataW_Dispose(bdPkcs7);
    CkJsonObjectW_Dispose(json);
    CkStringBuilderW_Dispose(sbJson);

    }