+++ /dev/null
-/** @file\r
- Implementation of MD5 algorithm.\r
-\r
-Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r
-This program and the accompanying materials\r
-are licensed and made available under the terms and conditions of the BSD License\r
-which accompanies this distribution. The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
-\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
-**/\r
-\r
-#include "Md5.h"\r
-\r
-CONST UINT32 Md5_Data[][2] = {\r
- { 0, 1 },\r
- { 1, 5 },\r
- { 5, 3 },\r
- { 0, 7 }\r
-};\r
-\r
-CONST UINT32 Md5_S[][4] = {\r
- { 7, 22, 17, 12 },\r
- { 5, 20, 14, 9 },\r
- { 4, 23, 16 ,11 },\r
- { 6, 21, 15, 10 },\r
-};\r
-\r
-CONST UINT32 Md5_T[] = {\r
- 0xD76AA478, 0xE8C7B756, 0x242070DB, 0xC1BDCEEE,\r
- 0xF57C0FAF, 0x4787C62A, 0xA8304613, 0xFD469501,\r
- 0x698098D8, 0x8B44F7AF, 0xFFFF5BB1, 0x895CD7BE,\r
- 0x6B901122, 0xFD987193, 0xA679438E, 0x49B40821,\r
- 0xF61E2562, 0xC040B340, 0x265E5A51, 0xE9B6C7AA,\r
- 0xD62F105D, 0x02441453, 0xD8A1E681, 0xE7D3FBC8,\r
- 0x21E1CDE6, 0xC33707D6, 0xF4D50D87, 0x455A14ED,\r
- 0xA9E3E905, 0xFCEFA3F8, 0x676F02D9, 0x8D2A4C8A,\r
- 0xFFFA3942, 0x8771F681, 0x6D9D6122, 0xFDE5380C,\r
- 0xA4BEEA44, 0x4BDECFA9, 0xF6BB4B60, 0xBEBFBC70,\r
- 0x289B7EC6, 0xEAA127FA, 0xD4EF3085, 0x04881D05,\r
- 0xD9D4D039, 0xE6DB99E5, 0x1FA27CF8, 0xC4AC5665,\r
- 0xF4292244, 0x432AFF97, 0xAB9423A7, 0xFC93A039,\r
- 0x655B59C3, 0x8F0CCC92, 0xFFEFF47D, 0x85845DD1,\r
- 0x6FA87E4F, 0xFE2CE6E0, 0xA3014314, 0x4E0811A1,\r
- 0xF7537E82, 0xBD3AF235, 0x2AD7D2BB, 0xEB86D391\r
-};\r
-\r
-CONST UINT8 Md5HashPadding[] =\r
-{\r
- 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00\r
-};\r
-\r
-//\r
-// ROTATE_LEFT rotates x left n bits.\r
-//\r
-#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))\r
-\r
-#define SA MedStates[Index2 & 3]\r
-#define SB MedStates[(Index2 + 1) & 3]\r
-#define SC MedStates[(Index2 + 2) & 3]\r
-#define SD MedStates[(Index2 + 3) & 3]\r
-\r
-/**\r
- Tf1 is one basic MD5 transform function.\r
-\r
- @param[in] A A 32-bit quantity.\r
- @param[in] B A 32-bit quantity.\r
- @param[in] C A 32-bit quantity.\r
-\r
- @return Output was produced as a 32-bit quantity based on the\r
- three 32-bit input quantity.\r
-**/\r
-UINT32\r
-Tf1 (\r
- IN UINT32 A,\r
- IN UINT32 B,\r
- IN UINT32 C\r
- )\r
-{\r
- return (A & B) | (~A & C);\r
-}\r
-\r
-/**\r
- Tf2 is one basic MD5 transform function.\r
-\r
- @param[in] A A 32-bit quantity.\r
- @param[in] B A 32-bit quantity.\r
- @param[in] C A 32-bit quantity.\r
-\r
- @return Output was produced as a 32-bit quantity based on the\r
- three 32-bit input quantity.\r
-**/\r
-UINT32\r
-Tf2 (\r
- IN UINT32 A,\r
- IN UINT32 B,\r
- IN UINT32 C\r
- )\r
-{\r
- return (A & C) | (B & ~C);\r
-}\r
-\r
-/**\r
- Tf3 is one basic MD5 transform function.\r
-\r
- @param[in] A A 32-bit quantity.\r
- @param[in] B A 32-bit quantity.\r
- @param[in] C A 32-bit quantity.\r
-\r
- @return Output was produced as a 32-bit quantity based on the\r
- three 32-bit input quantity.\r
-**/\r
-UINT32\r
-Tf3 (\r
- IN UINT32 A,\r
- IN UINT32 B,\r
- IN UINT32 C\r
- )\r
-{\r
- return A ^ B ^ C;\r
-}\r
-\r
-/**\r
- Tf4 is one basic MD5 transform function.\r
-\r
- @param[in] A A 32-bit quantity.\r
- @param[in] B A 32-bit quantity.\r
- @param[in] C A 32-bit quantity.\r
-\r
- @return Output was produced as a 32-bit quantity based on the\r
- three 32-bit input quantity.\r
-**/\r
-UINT32\r
-Tf4 (\r
- IN UINT32 A,\r
- IN UINT32 B,\r
- IN UINT32 C\r
- )\r
-{\r
- return B ^ (A | ~C);\r
-}\r
-\r
-typedef\r
-UINT32\r
-(*MD5_TRANSFORM_FUNC) (\r
- IN UINT32 A,\r
- IN UINT32 B,\r
- IN UINT32 C\r
- );\r
-\r
-CONST MD5_TRANSFORM_FUNC Md5_F[] = {\r
- Tf1,\r
- Tf2,\r
- Tf3,\r
- Tf4\r
-};\r
-\r
-/**\r
- Perform the MD5 transform on 64 bytes data segment.\r
-\r
- @param[in, out] Md5Ctx It includes the data segment for Md5 transform.\r
-**/\r
-VOID\r
-MD5Transform (\r
- IN OUT MD5_CTX *Md5Ctx\r
- )\r
-{\r
- UINT32 Index1;\r
- UINT32 Index2;\r
- UINT32 MedStates[MD5_HASHSIZE >> 2];\r
- UINT32 *Data;\r
- UINT32 IndexD;\r
- UINT32 IndexT;\r
-\r
- Data = (UINT32 *) Md5Ctx->M;\r
-\r
- //\r
- // Copy MD5 states to MedStates\r
- //\r
- CopyMem (MedStates, Md5Ctx->States, MD5_HASHSIZE);\r
-\r
- IndexT = 0;\r
- for (Index1 = 0; Index1 < 4; Index1++) {\r
- IndexD = Md5_Data[Index1][0];\r
- for (Index2 = 16; Index2 > 0; Index2--) {\r
- SA += (*Md5_F[Index1]) (SB, SC, SD) + Data[IndexD] + Md5_T[IndexT];\r
- SA = ROTATE_LEFT (SA, Md5_S[Index1][Index2 & 3]);\r
- SA += SB;\r
-\r
- IndexD += Md5_Data[Index1][1];\r
- IndexD &= 15;\r
-\r
- IndexT++;\r
- }\r
- }\r
-\r
- for (Index1 = 0; Index1 < 4; Index1++) {\r
- Md5Ctx->States[Index1] += MedStates[Index1];\r
- }\r
-}\r
-\r
-/**\r
- Copy data segment into the M field of MD5_CTX structure for later transform.\r
- If the length of data segment is larger than 64 bytes, then does the transform\r
- immediately and the generated Md5 code is stored in the States field of MD5_CTX\r
- data struct for later accumulation.\r
- All of Md5 code generated for the sequential 64-bytes data segaments are be\r
- accumulated in MD5Final() function.\r
-\r
- @param[in, out] Md5Ctx The data structure of storing the original data\r
- segment and the final result.\r
- @param[in] Data The data wanted to be transformed.\r
- @param[in] DataLen The length of data.\r
-**/\r
-VOID\r
-MD5UpdateBlock (\r
- IN OUT MD5_CTX *Md5Ctx,\r
- IN CONST UINT8 *Data,\r
- IN UINTN DataLen\r
- )\r
-{\r
- UINTN Limit;\r
-\r
- for (Limit = 64 - Md5Ctx->Count; DataLen >= 64 - Md5Ctx->Count; Limit = 64) {\r
- CopyMem (Md5Ctx->M + Md5Ctx->Count, (VOID *)Data, Limit);\r
- MD5Transform (Md5Ctx);\r
-\r
- Md5Ctx->Count = 0;\r
- Data += Limit;\r
- DataLen -= Limit;\r
- }\r
-\r
- CopyMem (Md5Ctx->M + Md5Ctx->Count, (VOID *)Data, DataLen);\r
- Md5Ctx->Count += DataLen;\r
-}\r
-\r
-/**\r
- Initialize four 32-bits chaining variables and use them to do the Md5 transform.\r
-\r
- @param[out] Md5Ctx The data structure of Md5.\r
-\r
- @retval EFI_SUCCESS Initialization is ok.\r
-**/\r
-EFI_STATUS\r
-MD5Init (\r
- OUT MD5_CTX *Md5Ctx\r
- )\r
-{\r
- ZeroMem (Md5Ctx, sizeof (*Md5Ctx));\r
-\r
- //\r
- // Set magic initialization constants.\r
- //\r
- Md5Ctx->States[0] = 0x67452301;\r
- Md5Ctx->States[1] = 0xefcdab89;\r
- Md5Ctx->States[2] = 0x98badcfe;\r
- Md5Ctx->States[3] = 0x10325476;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- the external interface of Md5 algorithm\r
-\r
- @param[in, out] Md5Ctx The data structure of storing the original data\r
- segment and the final result.\r
- @param[in] Data The data wanted to be transformed.\r
- @param[in] DataLen The length of data.\r
-\r
- @retval EFI_SUCCESS The transform is ok.\r
- @retval Others Other errors as indicated.\r
-**/\r
-EFI_STATUS\r
-MD5Update (\r
- IN OUT MD5_CTX *Md5Ctx,\r
- IN VOID *Data,\r
- IN UINTN DataLen\r
- )\r
-{\r
- if (EFI_ERROR (Md5Ctx->Status)) {\r
- return Md5Ctx->Status;\r
- }\r
-\r
- MD5UpdateBlock (Md5Ctx, (CONST UINT8 *) Data, DataLen);\r
- Md5Ctx->Length += DataLen;\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- Accumulate the MD5 value of every data segment and generate the finial\r
- result according to MD5 algorithm.\r
-\r
- @param[in, out] Md5Ctx The data structure of storing the original data\r
- segment and the final result.\r
- @param[out] HashVal The final 128-bits output.\r
-\r
- @retval EFI_SUCCESS The transform is ok.\r
- @retval Others Other errors as indicated.\r
-**/\r
-EFI_STATUS\r
-MD5Final (\r
- IN OUT MD5_CTX *Md5Ctx,\r
- OUT UINT8 *HashVal\r
- )\r
-{\r
- UINTN PadLength;\r
-\r
- if (Md5Ctx->Status == EFI_ALREADY_STARTED) {\r
- //\r
- // Store Hashed value & Zeroize sensitive context information.\r
- //\r
- CopyMem (HashVal, (UINT8 *) Md5Ctx->States, MD5_HASHSIZE);\r
- ZeroMem ((UINT8 *)Md5Ctx, sizeof (*Md5Ctx));\r
-\r
- return EFI_SUCCESS;\r
- }\r
-\r
- if (EFI_ERROR (Md5Ctx->Status)) {\r
- return Md5Ctx->Status;\r
- }\r
-\r
- PadLength = Md5Ctx->Count >= 56 ? 120 : 56;\r
- PadLength -= Md5Ctx->Count;\r
- MD5UpdateBlock (Md5Ctx, Md5HashPadding, PadLength);\r
- Md5Ctx->Length = LShiftU64 (Md5Ctx->Length, 3);\r
- MD5UpdateBlock (Md5Ctx, (CONST UINT8 *) &Md5Ctx->Length, 8);\r
-\r
- ZeroMem (Md5Ctx->M, sizeof (Md5Ctx->M));\r
- Md5Ctx->Length = 0;\r
- Md5Ctx->Status = EFI_ALREADY_STARTED;\r
- return MD5Final (Md5Ctx, HashVal);\r
-}\r
-\r
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