c_hash.c

/****************************************************************************************
*  c_hash.c
*
*  Note: See Tricryption Engine SDK for details on how to set the project environment.
*
*****************************************************************************************/

#include <stdio.h>
#include <string.h>
#include "teagent_c.h"

void PrintError(const char * msg)
{
    char szErr[1024];
    uint32_t nLength = 1024;
    uint32_t nCode = GetLastTEError(szErr, &nLength);
    printf("%s Code = 0x%x, Message = %s\n", msg, nCode, szErr);
}


int main()
{
    char szData[] = "This is a test string";
    char szSalt[] = "this is our secret";
    char szHashed[64];  /* >= 45: performHash v2 (SHA-256) emits 44 base64 chars + NUL */
    unsigned long length;
    TE_RETCODE ret;

    /* Initialize the TE environment */
    TEEnvInit();

    printf("Source Data: %s\n", szData);
    printf("Salt       : %s\n", szSalt);

    /* Hash data */
    length = sizeof(szHashed);  /* set buffer size for hashed value */
    ret = Hash(szData, strlen(szData), szHashed, &length, szSalt, strlen(szSalt));

    if(ret)
    {
        PrintError("Hash error:");
    }
    else
    {
        printf("Return value         = %d\n", ret);
        printf("Length of hash value = %d\n", length);
        if(sizeof(szHashed) > length) {
            szHashed[length] = '\0';     /* terminate hashed value at the right position */
            printf("Hashed value : %s\n", szHashed);
        }
    }

    /* Uninitialize the TE environment */
    TEEnvClose();

    return 0;
}


/*
Source Data: This is a test string
Salt       : this is our secret
Return value         = 0
Length of hash value = 44
Hashed value : 28WTruCr5vQ7tO0rDZVPfs0X78wk3ZHC0o+NKz9K7x8=
Press any key to continue
*/