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wine-mirror
GitHub Repository: wine-mirror/wine
 Path: blob/master/libs/symcrypt/lib/aes-default-bc.c
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//

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// aes-default-bc.c   code for AES implementation

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//

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// Copyright (c) Microsoft Corporation. Licensed under the MIT license.

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//

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#include "precomp.h"

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//

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// The SymCrypt API allows callers to use the generic block cipher mode functions and pass

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// a pointer to a structure that describes the block cipher.

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// This structure contains pointers to all the optimized implementations of the various modes.

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// This pulls in all the mode-specific code, which in some cases we don't want.

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//

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// We isolate the SymCryptAesBlockCipher structure into this separate C file so that it only gets

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// pulled in when the application uses this structure.

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//

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//

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// The virtual table for the AES block cipher.

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//

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// All pointers must point to specialized functions. The general

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// block cipher mode functions will call these pointers if they are non-NULL

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// so if they point back to an implementation that calls the generic

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// mode functions we get an infinite recursion.

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//

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// NOTE: the compile-time conditions in this file should track the actual implementations in

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// aes-default.c.

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//

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const SYMCRYPT_BLOCKCIPHER SymCryptAesBlockCipher_Fast = {

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    &SymCryptAesExpandKey,

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    &SymCryptAesEncrypt,

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    &SymCryptAesDecrypt,

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64 | SYMCRYPT_CPU_ARM | SYMCRYPT_CPU_ARM64

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    &SymCryptAesEcbEncrypt,

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#else

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    NULL,

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#endif

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64

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    &SymCryptAesEcbDecrypt,

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#else

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    NULL,

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#endif

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64 | SYMCRYPT_CPU_ARM | SYMCRYPT_CPU_ARM64

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    &SymCryptAesCbcEncrypt,

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#else

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    NULL,

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#endif

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64 | SYMCRYPT_CPU_ARM | SYMCRYPT_CPU_ARM64

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    &SymCryptAesCbcDecrypt,

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#else

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    NULL,

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#endif

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64 | SYMCRYPT_CPU_ARM64

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    &SymCryptAesCbcMac,

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#else

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    NULL,

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#endif

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64 | SYMCRYPT_CPU_ARM | SYMCRYPT_CPU_ARM64

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    &SymCryptAesCtrMsb64,

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#else

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    NULL,

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#endif

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64 | SYMCRYPT_CPU_ARM | SYMCRYPT_CPU_ARM64

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    &SymCryptAesGcmEncryptPart,

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#else

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    NULL,

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#endif

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#if SYMCRYPT_CPU_X86 | SYMCRYPT_CPU_AMD64 | SYMCRYPT_CPU_ARM | SYMCRYPT_CPU_ARM64

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    &SymCryptAesGcmDecryptPart,

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#else

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    NULL,

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#endif

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    SYMCRYPT_AES_BLOCK_SIZE,

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    sizeof( SYMCRYPT_AES_EXPANDED_KEY ),

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};

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//

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// This indirection makes it easier to switch implementations in a binary without

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// changing the calling code.

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//

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const PCSYMCRYPT_BLOCKCIPHER SymCryptAesBlockCipher = &SymCryptAesBlockCipher_Fast;

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