1 /** @file 2 Application for Pseudorandom Number Generator Validation. 3 4 Copyright (c) 2010, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include "Cryptest.h" 16 17 #define RANDOM_NUMBER_SIZE 256 18 19 CONST UINT8 SeedString[] = "This is the random seed for PRNG verification."; 20 21 UINT8 PreviousRandomBuffer[RANDOM_NUMBER_SIZE] = { 0x0 }; 22 23 UINT8 RandomBuffer[RANDOM_NUMBER_SIZE] = { 0x0 }; 24 25 /** 26 Validate UEFI-OpenSSL pseudorandom number generator interfaces. 27 28 @retval EFI_SUCCESS Validation succeeded. 29 @retval EFI_ABORTED Validation failed. 30 31 **/ 32 EFI_STATUS 33 ValidateCryptPrng ( 34 VOID 35 ) 36 { 37 UINTN Index; 38 BOOLEAN Status; 39 40 Print (L" \nUEFI-OpenSSL PRNG Engine Testing:\n"); 41 42 Print (L"- Random Generation..."); 43 44 Status = RandomSeed (SeedString, sizeof (SeedString)); 45 if (!Status) { 46 Print (L"[Fail]"); 47 return EFI_ABORTED; 48 } 49 50 for (Index = 0; Index < 10; Index ++) { 51 Status = RandomBytes (RandomBuffer, RANDOM_NUMBER_SIZE); 52 if (!Status) { 53 Print (L"[Fail]"); 54 return EFI_ABORTED; 55 } 56 57 if (CompareMem (PreviousRandomBuffer, RandomBuffer, RANDOM_NUMBER_SIZE) == 0) { 58 Print (L"[Fail]"); 59 return EFI_ABORTED; 60 } 61 62 CopyMem (PreviousRandomBuffer, RandomBuffer, RANDOM_NUMBER_SIZE); 63 } 64 65 Print (L"[Pass]\n"); 66 67 return EFI_SUCCESS; 68 69 } 70
