c9af866cdd
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1871 This is null version of RngLib which should be used with modules that inherit an (indirect) dependency on the RngLib class, but never actually call RngLib APIs for consuming randomness. To be more specific, if following components or functionalities are used in a platform, the BaseRngLibNull should *not* be used. Instead, a non-Null version of RngLib must be used (like BaseRngLib for IA32/X64, or future DxeRngLibRngProtocol for all ARCHs). - HddPasswordDxe.inf - AES, TLS (TlsDxe.inf, TlsLib.inf), RSA_OAEP, RSA_PK1 - (If BaseRngLibNull interface ASSERTed at boot time) Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
95 lines
1.9 KiB
C
95 lines
1.9 KiB
C
/** @file
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Null version of Random number generator services.
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Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Library/DebugLib.h>
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#include <Library/RngLib.h>
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/**
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Generates a 16-bit random number.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the 16-bit random value.
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@retval TRUE Random number generated successfully.
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@retval FALSE Failed to generate the random number.
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**/
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BOOLEAN
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EFIAPI
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GetRandomNumber16 (
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OUT UINT16 *Rand
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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/**
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Generates a 32-bit random number.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the 32-bit random value.
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@retval TRUE Random number generated successfully.
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@retval FALSE Failed to generate the random number.
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**/
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BOOLEAN
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EFIAPI
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GetRandomNumber32 (
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OUT UINT32 *Rand
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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/**
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Generates a 64-bit random number.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the 64-bit random value.
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@retval TRUE Random number generated successfully.
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@retval FALSE Failed to generate the random number.
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**/
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BOOLEAN
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EFIAPI
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GetRandomNumber64 (
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OUT UINT64 *Rand
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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/**
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Generates a 128-bit random number.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the 128-bit random value.
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@retval TRUE Random number generated successfully.
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@retval FALSE Failed to generate the random number.
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**/
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BOOLEAN
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EFIAPI
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GetRandomNumber128 (
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OUT UINT64 *Rand
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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