gen_csr.c

Example of CSR generation in PKCS#10 format.

See Note on examples.

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <dinamo.h>
 
/* Parametros da conexao */
#define   HSM_IP    "127.0.0.1"
#define   HSM_USR   "master"
#define   HSM_PWD   "12345678"
 
int main(void)
{
 
    int         nRet                    = 0;
    struct      AUTH_PWD_EX stAUTPWD    = {0};
    HSESSIONCTX hSession                = NULL;
    HKEYCTX     hPrivKey                = NULL;
 
    char   szPrivKeyName[]   = "rsa";
    char   szSubject[]       = "/CN=www.teste.com/O=teste/OU=engenharia";
    DWORD   dwCSRLen         = 0;
    BYTE   *pbCSR            = NULL;
 
    // Preenche a estrutura de usuario
    strncpy(stAUTPWD.szAddr, HSM_IP, sizeof(stAUTPWD.szAddr));
    strncpy(stAUTPWD.szUserId, HSM_USR, sizeof(stAUTPWD.szUserId));
    strncpy(stAUTPWD.szPassword, HSM_PWD, sizeof(stAUTPWD.szPassword));
    stAUTPWD.nPort = DEFAULT_PORT;
    stAUTPWD.nStrongAuthLen = 0;
    stAUTPWD.pbStrongAuth = NULL;
    stAUTPWD.dwAuthType = SA_AUTH_NONE;
 
    DInitialize(0);
 
    nRet = DOpenSession(&hSession,
                        SS_USR_PWD_EX,
                        (BYTE *) &stAUTPWD,
                        sizeof(struct AUTH_PWD_EX),
                        CACHE_BYPASS | LB_BYPASS | ENCRYPTED_CONN);
 
    if(nRet)
    {
        printf("DOpenSession : Failed! %d.\n", nRet);
        goto clean;
    }
 
    /*  Gera a chave privada  */
    nRet = DGenerateKey(hSession,
                        szPrivKeyName,
                        ALG_RSA_2048,
                        0,
                        &hPrivKey);
    if (nRet)
    {
        printf("DGenerateKey : Failed! %d.\n", nRet);
        goto clean;
    }
 
    /*  Gera o CSR  */
 
    nRet = DGeneratePKCS10CSR(hSession,
                              szPrivKeyName,
                              CORE_P10_CSR_VERSION1,
                              szSubject,
                              P10_CSR_PEM,
                              &dwCSRLen,
                              &pbCSR,
                              0);
    if( nRet )
    {
        printf("DGeneratePKCS10CSR : Failed! %d.\n", nRet);
        goto clean;
    }
 
    clean:
 
    DDestroyKey(&hPrivKey, 0);
 
    if( hSession )
    {
        DCloseSession(&hSession, 0);
    }
 
    if( pbCSR )
    {
        DFree(pbCSR);
    }
 
    DFinalize();
 
    return nRet;
}