C

Example: Crypt2.GetSignedAttributes method

Demonstrates how to call the GetSignedAttributes method. C

#include <C_CkCrypt2.h>
#include <C_CkBinData.h>
#include <C_CkJsonObject.h>
#include <C_CkStringBuilder.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCrypt2 crypt;
    HCkBinData bdPkcs7;
    HCkJsonObject json;
    HCkStringBuilder sbJson;
    int i;
    BOOL tryNext;

    success = FALSE;

    crypt = CkCrypt2_Create();

    bdPkcs7 = CkBinData_Create();
    success = CkBinData_LoadFile(bdPkcs7,"qa_data/cades/CAdES-T/Signature-C-T-1.p7m");
    if (success == FALSE) {
        printf("%s\n",CkBinData_lastErrorText(bdPkcs7));
        CkCrypt2_Dispose(crypt);
        CkBinData_Dispose(bdPkcs7);
        return;
    }

    json = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(json,FALSE);

    sbJson = CkStringBuilder_Create();
    i = 0;
    tryNext = TRUE;
    while (tryNext) {
        if (CkCrypt2_GetSignedAttributes(crypt,i,bdPkcs7,sbJson) == TRUE) {
            CkJsonObject_LoadSb(json,sbJson);
            printf("%d: \n",i);
            printf("%s\n",CkJsonObject_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"
    //      }
    //    ]
    //  }


    CkCrypt2_Dispose(crypt);
    CkBinData_Dispose(bdPkcs7);
    CkJsonObject_Dispose(json);
    CkStringBuilder_Dispose(sbJson);

    }