pkcs7sign.c

Exemplo de assinatura digital com padrão PKCS#7.

Veja Nota sobre os exemplos.

#include <windows.h>
#include <stdio.h>
 
#include <dinamo.h> /* header do Dinamo */
 
#define HOST_ADDR       "10.0.62.16"
#define USER_ID         "master"
#define USER_PWD        "12345678"

 
void main()
{
    int             nRet        = 0;
    struct AUTH_PWD authPwd;
    HSESSIONCTX     hSession    = NULL;
    BYTE            pbContent[] = {"teste teste teste de assinatura pkcs#7."}; 
    DWORD           dwSignatureLen  = 0;
    BYTE            *pbSignature    = NULL;

    //Inicializa as bibliotecas do Dinamo
    nRet = DInitialize(0);

    if (nRet){
        printf("Falha na funcao: DInitialize \nCodigo de erro: %d\n", nRet);
        exit(1);
    }

    printf("Bibliotecas inicializadas.\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), 0);

    if (nRet){
        printf("Falha na funcao: DOpenSession \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
    printf("Sessao com o Dinamo estabelecida.\n");

    //Faz assinatura PKCS#7
    nRet = DPKCS7Sign(  hSession,
                        "chave_privada", 
                        "certificado", 
                        "cadeia",
                        0,
                        pbContent, 
                        sizeof(pbContent),
                        &dwSignatureLen, 
                        &pbSignature,
                        0 );
    if(nRet){
        printf("\nFalha na funcao: DPKCS7Sign\nCodigo de erro: %d\n\n", nRet);
        goto clean;
    }


    printf("\nAssinatura PKCS#7 gerada com sucesso!\n\n");

    clean:



    if (hSession) {
        DCloseSession(&hSession, 0);
        printf("Sessao encerrada.\n");
    }

    DFinalize();
    printf("Bibliotecas finalizada.\n");
 
}