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 of 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[] = "Test_Key";
    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 see = DN_BCHAIN_VER_BIP32_TESTNET;
 
    //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");
 
    //Criacao da chave BIP32.
    nRet = DBchainCreateXPrv(hSession,
                             DN_BCHAIN_BIP32_XPRV,
                             BCHAIN_KEY,
                             szId,
                             &ver,
                             sizeof(see),
                             0);
    if(nRet){
        printf("Function failed: DBchainCreateXPrv \nError code: %d\n", nRet);
        goto clean;
    }
 
    printf("Bip 32 key created successfully.\n");
 
    //Operação de Child Key Derivation.
    nRet = DBchainCreateBip32Ckd(hSession,
                                 see,
                                 DN_BCHAIN_SECURE_BIP32_INDEX_BASE + 1,
                                 BCHAIN_KEY,
                                 szId,
                                 szDest,
                                 &pbKeyInfo,
                                 0);
    if(nRet){
        printf("Function failed: DBchainCreateBip32Ckd \nError code: %d\n", nRet);
        goto clean;
    }
 
    printf("Child Key Derivation done successfully.\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("Function failure: DBchainGetAddress \nError code: %d\n", nRet);
        goto clean;
    }
 
    printf("Bchain key address retrieved successfully.\n");
 
 
    //Remoção da chave.
    nRet = DRemoveObj(hSession, szId);
    if(nRet){
        printf("Function failed: DRemoveObj \nError code: %d\n", nRet);
        goto clean;
    }
    printf("Bchain key removed from HSM.\n");
 
 
    //Remoção da Child Key.
    nRet = DRemoveObj(hSession, szDest);
    if(nRet){
        printf("Function failed: DRemoveObj \nError code: %d\n", nRet);
        goto clean;
    }
    printf("Child Key removed from HSM.\n");
 
    clean:
    if (hSession) {
        DCloseSession(&hSession, 0);
        printf("Session closed.\n");
    }
 
    DFinalize();
    printf("Libraries finished.\n");
 
    return nRet;
}