gen_dukpt.c

Example of DUKPT key generation.

See Note on examples.

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
 
#include "dinamo.h" /* header of Dinamo */
 
#define HOST_ADDR "127.0.0.1"
#define USER_ID "master"
#define USER_PWD "12345678"
 
#define KEY_ID "Test_Key"
#define KEY_TYPE ALG_3DES_112
 
int main()
{
    int nRet = 0;
    struct AUTH_PWD authPwd;
    HSESSIONCTX hSession = NULL;
    HKEYCTX hKey = NULL;
 
    BYTE pbKSI[MIN_KSI_LEN]= {0};
    BYTE pbDID_CRT[MIN_CTR_LEN] = {0x00, 0x00, 0x00, 0x00, 0x01};
    BYTE szBDKName[MAX_OBJ_ID] = {0};
    BYTE szDUKPT[MAX_OBJ_ID] = {0};
 
    //Inicializa as bibliotecas do Dinamo
    nRet =  DInitialize(0);
    if (nRet){
        printf("Function failure: DInitialize \nError code: %d\n", nRet);
        goto clean;
    }
 
    printf("Libraries initialized.\n");
 
    //Inicializa a estrutura para conexao com o HSM
    strncpy(authPwd. szAddr, HOST_ADDR, sizeof(authPwd.szAddr));
    authPwd. nPort = DEFAULT_PORT;
    strncpy(authPwd. szUserId, USER_ID, sizeof(authPwd.szUserId));
    strncpy(authPwd. szPassword, USER_PWD, sizeof(authPwd.szPassword));
 
    nRet = DOpenSession(&hSession, SS_USER_PWD,(BYTE *)&authPwd, sizeof(authPwd), ENCRYPTED_CONN);
    if (nRet){
        printf("Function failure: DOpenSession \nError code: %d\n", nRet);
        goto clean;
    }
 
    printf("Session with Dinamo established.\n");
 
    //Gera o nome da BDK a partir de uma KSI.
    DGenerateBDKName(pbKSI,(char *)&szBDKName, 0);
    if(szBDKName[0] == '\0'){
        printf("Function failed: DGenerateBDKName.\n");
        goto clean;
    }
 
    printf("BDK name generated from KSI.\n");
 
    //Geração da chave 3DES
    nRet = DGenerateKey(hSession,(char *)&szBDKName, KEY_TYPE, TEMPORARY_KEY, &hKey);
    if(nRet){
        printf("Function failure: DGenerateKey \nError code: %d\n", nRet);
        goto clean;
    }
 
    printf("3DES key generated successfully.\n");
 
    //Geração do DUKPT.
    nRet = DGenerateDUKPT(hSession, pbKSI, pbDID_CRT,(char *)&szDUKPT, NEW_DUKPT_MODE_TMP);
    if(nRet){
        printf("Function failure: DGenerateDUKPT \nError code: %d\n", nRet);
        goto clean;
    }
 
    printf("DUKPT key generated successfully.\n");
 
    clean:
    if(hKey){
        //Remove a chave 3DES
        DDestroyKey(&hKey, REMOVE_FROM_HSM);
        printf("Key successfully removed.\n");
    }
    if (hSession) {
        DCloseSession(&hSession, 0);
        printf("Session closed.\n");
    }
 
    DFinalize();
    printf("Libraries finished.\n");
 
    return nRet;
}