/* BEGIN_HEADER */
#include "mbedtls/pkcs5.h"
/* END_HEADER */

/* BEGIN_DEPENDENCIES
 * depends_on:MBEDTLS_PKCS5_C
 * END_DEPENDENCIES
 */

/* BEGIN_CASE */
void pbkdf2_hmac( int hash, char *hex_password_string,
                  char *hex_salt_string, int it_cnt, int key_len,
                  char *result_key_string )
{
    unsigned char pw_str[100];
    unsigned char salt_str[100];
    unsigned char dst_str[100];

    mbedtls_md_context_t ctx;
    const mbedtls_md_info_t *info;

    int pw_len, salt_len;
    unsigned char key[100];

    mbedtls_md_init( &ctx );

    memset(pw_str, 0x00, 100);
    memset(salt_str, 0x00, 100);
    memset(dst_str, 0x00, 100);

    pw_len = unhexify( pw_str, hex_password_string );
    salt_len = unhexify( salt_str, hex_salt_string );


    info = mbedtls_md_info_from_type( hash );
    TEST_ASSERT( info != NULL );
    TEST_ASSERT( mbedtls_md_setup( &ctx, info, 1 ) == 0 );
    TEST_ASSERT( mbedtls_pkcs5_pbkdf2_hmac( &ctx, pw_str, pw_len, salt_str, salt_len,
                                     it_cnt, key_len, key ) == 0 );

    hexify( dst_str, key, key_len );
    TEST_ASSERT( strcmp( (char *) dst_str, result_key_string ) == 0 );

exit:
    mbedtls_md_free( &ctx );
}
/* END_CASE */

/* BEGIN_CASE */
void mbedtls_pkcs5_pbes2( int params_tag, char *params_hex, char *pw_hex,
                  char *data_hex, int ref_ret, char *ref_out_hex )
{
    int my_ret;
    mbedtls_asn1_buf params;
    unsigned char *my_out = NULL, *ref_out = NULL, *data = NULL, *pw = NULL;
    size_t ref_out_len, data_len, pw_len;

    params.tag = params_tag;
    params.p = unhexify_alloc( params_hex, &params.len );

    data = unhexify_alloc( data_hex, &data_len );
    pw = unhexify_alloc( pw_hex, &pw_len );
    ref_out = unhexify_alloc( ref_out_hex, &ref_out_len );
    my_out = zero_alloc( ref_out_len );

    my_ret = mbedtls_pkcs5_pbes2( &params, MBEDTLS_PKCS5_DECRYPT,
                          pw, pw_len, data, data_len, my_out );
    TEST_ASSERT( my_ret == ref_ret );

    if( ref_ret == 0 )
        TEST_ASSERT( memcmp( my_out, ref_out, ref_out_len ) == 0 );

exit:
    mbedtls_free( params.p );
    mbedtls_free( data );
    mbedtls_free( pw );
    mbedtls_free( ref_out );
    mbedtls_free( my_out );
}
/* END_CASE */

/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
void pkcs5_selftest( )
{
    TEST_ASSERT( mbedtls_pkcs5_self_test( 0 ) == 0 );
}
/* END_CASE */