ckd_bchain.c

Example of a Child Key Derivation (CKD) operation.

See Note on examples.

//#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#include "dinamo.h" /* header do Dinamo */
 
#define HOST_ADDR       "127.0.0.1"
#define USER_ID         "master"
#define USER_PWD        "12345678"
 
int main()
{
    int nRet = 0;
    struct AUTH_PWD authPwd;
    HSESSIONCTX hSession = NULL;
 
    char szId[] = "Chave_Teste";
    char szDest[MAX_OBJ_ID_FQN_LEN] = "Child_Key";
    DN_BCHAIN_KEY_INFO pbKeyInfo;
 
    BYTE pbAddress[DN_BCHAIN_MAX_ADDR_LEN] = {0};
    DWORD pdwAddressLen = sizeof(pbAddress);
    BYTE ver = DN_BCHAIN_VER_BIP32_TESTNET;
 
    //Inicializa as bibliotecas do Dinamo
    nRet = DInitialize(0);
    if (nRet){
        printf("Falha na funcao: DInitialize \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
 
    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), ENCRYPTED_CONN);
    if (nRet){
        printf("Falha na funcao: DOpenSession \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
 
    printf("Sessao com o Dinamo estabelecida.\n");
 
    //Criacao da chave BIP32.
    nRet = DBchainCreateXPrv(hSession,
                             DN_BCHAIN_BIP32_XPRV,
                             BCHAIN_KEY,
                             szId,
                             &ver,
                             sizeof(ver),
                             0);
    if(nRet){
        printf("Falha na funcao: DBchainCreateXPrv \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
 
    printf("Chave Bip 32 criada com sucesso.\n");
 
    //Operação de Child Key Derivation.
    nRet = DBchainCreateBip32Ckd(hSession,
                                 ver,
                                 DN_BCHAIN_SECURE_BIP32_INDEX_BASE + 1,
                                 BCHAIN_KEY,
                                 szId,
                                 szDest,
                                 &pbKeyInfo,
                                 0);
    if(nRet){
        printf("Falha na funcao: DBchainCreateBip32Ckd \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
 
    printf("Child Key Derivation feita com sucesso.\n");
 
    //Recupera o endereço da chave criada.
    nRet = DBchainGetAddress(hSession,
                             DN_BCHAIN_AT_BTC_B32_PKH,
                             DN_BCHAIN_VER_BTC_B32_WITVER,
                             DN_BCHAIN_HRP_BTC_TEST_NET,
                             szId,
                             pbAddress,
                             &pdwAddressLen,
                             0);
    if(nRet){
        printf("Falha na funcao: DBchainGetAddress \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
 
    printf("Endereco da chave Bchain recuperado com sucesso.\n");
 
 
    //Remoção da chave.
    nRet = DRemoveObj(hSession, szId);
    if(nRet){
        printf("Falha na funcao: DRemoveObj \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
    printf("Chave Bchain removida do HSM.\n");
 
 
    //Remoção da Child Key.
    nRet = DRemoveObj(hSession, szDest);
    if(nRet){
        printf("Falha na funcao: DRemoveObj \nCodigo de erro: %d\n", nRet);
        goto clean;
    }
    printf("Child Key removida do HSM.\n");
 
    clean:
    if (hSession) {
        DCloseSession(&hSession, 0);
        printf("Sessao encerrada.\n");
    }
 
    DFinalize();
    printf("Bibliotecas finalizadas.\n");
 
    return nRet;
}