Fixed one typo in MathRShiftU64.S stub implementation; Add one digest algorithm registration to make sure the underlying algorithm is available for the default OpenSSL software PRNG implementation.
Signed-off-by: Long, Qin <qin.long@intel.com> Reviewed-by: Fu, Siyuan <siyuan.fu@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14860 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -1,7 +1,7 @@
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/** @file
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Pseudorandom Number Generator Wrapper Implementation over OpenSSL.
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Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2012 - 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@@ -14,6 +14,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#include "InternalCryptLib.h"
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#include <openssl/rand.h>
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#include <openssl/evp.h>
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#include <Library/PrintLib.h>
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/**
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@@ -45,6 +46,14 @@ RandomSeed (
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return FALSE;
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}
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//
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// The software PRNG implementation built in OpenSSL depends on message digest algorithm.
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// Make sure SHA-1 digest algorithm is available here.
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//
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if (EVP_add_digest (EVP_sha1 ()) == 0) {
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return FALSE;
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}
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//
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// Seed the pseudorandom number generator with user-supplied value.
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// NOTE: A cryptographic PRNG must be seeded with unpredictable data.
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