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/** @file
Application for Pseudorandom Number Generator Validation.
Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "Cryptest.h"
#define RANDOM_NUMBER_SIZE 256
CONST UINT8 SeedString[] = "This is the random seed for PRNG verification.";
UINT8 PreviousRandomBuffer[RANDOM_NUMBER_SIZE] = { 0x0 };
UINT8 RandomBuffer[RANDOM_NUMBER_SIZE] = { 0x0 };
/**
Validate UEFI-OpenSSL pseudorandom number generator interfaces.
@retval EFI_SUCCESS Validation succeeded.
@retval EFI_ABORTED Validation failed.
**/
EFI_STATUS
ValidateCryptPrng (
VOID
)
{
UINTN Index;
BOOLEAN Status;
Print (L" \nUEFI-OpenSSL PRNG Engine Testing:\n");
Print (L"- Random Generation...");
Status = RandomSeed (SeedString, sizeof (SeedString));
if (!Status) {
Print (L"[Fail]");
return EFI_ABORTED;
}
for (Index = 0; Index < 10; Index ++) {
Status = RandomBytes (RandomBuffer, RANDOM_NUMBER_SIZE);
if (!Status) {
Print (L"[Fail]");
return EFI_ABORTED;
}
if (CompareMem (PreviousRandomBuffer, RandomBuffer, RANDOM_NUMBER_SIZE) == 0) {
Print (L"[Fail]");
return EFI_ABORTED;
}
CopyMem (PreviousRandomBuffer, RandomBuffer, RANDOM_NUMBER_SIZE);
}
Print (L"[Pass]\n");
return EFI_SUCCESS;
}
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