Libgcrypt library

Hi,

I am trying to encrypt a message using Libgcrypt library.
I have written the below code but I am getting an error when I try to declare objects of type 'gcry_cipher_hd_t' that 'Type gcry_cipher_hd_t could not be resolved' when it is defined in the gcrypt.h and I have included it.
I am in Ubuntu.
Thanks for any help.

My code

Code:

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#include <gcrypt.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
int main()
{
    gcry_cipher_hd_t hd;
    gcry_error_t error;
    char msg='Helloo world my first encryption';
    char pwd;
    int algo = 'GCRY_CIPHER_AES256';
    int mode = 'GCRY_CIPHER_MODE_CBC';
    unsigned int flags=0;
    printf('Enter Password');
    scanf("%c", &pwd);
    //GCRY_CIPHER_AES256
    error = gcry_cipher_open(*hd, algo, mode,flags);
}

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Quote:

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Originally Posted by hiranava

I have written the below code but I am getting an error when I try to declare objects of type 'gcry_cipher_hd_t' that 'Type gcry_cipher_hd_t could not be resolved' when it is defined in the gcrypt.h and I have included it.

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Are there any other error messages, e.g., are you sure that the header file was correctly included?

No other errors. Even the function calls to the function in header doesn't show an error.

If i declare as below it doesn't show a error but I am not sure if that is correct.

Code:

---

#include <gcrypt.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
int main()
{
        struct gcry_cipher_hd_t hd;
        struct gcry_error_t error;
        char msg='Helloo world my first encryption';
        char pwd;
        int algo = 'GCRY_CIPHER_AES256';
        int mode = 'GCRY_CIPHER_MODE_CBC';
        unsigned int flags=0;
        printf('Enter Password');
        scanf("%c", &pwd);
        //GCRY_CIPHER_AES256
        error = gcry_cipher_open(*hd, algo, mode,flags);
}

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Does the header file exist in the /usr/include directory?

Is your password really a single character?