]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Common operation for Security.\r | |
3 | \r | |
4 | Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php.\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "IpSecCryptIo.h"\r | |
17 | //\r | |
18 | // Alogrithm's informations for the Encrypt/Decrpt Alogrithm.\r | |
19 | //\r | |
20 | ENCRYPT_ALGORITHM mIpsecEncryptAlgorithmList[IPSEC_ENCRYPT_ALGORITHM_LIST_SIZE] = {\r | |
21 | {EFI_IPSEC_EALG_NULL, 0, 0, 1, NULL, NULL, NULL, NULL},\r | |
22 | {(UINT8)-1, 0, 0, 0, NULL, NULL, NULL, NULL}\r | |
23 | };\r | |
24 | //\r | |
25 | // Alogrithm's informations for the Authentication algorithm\r | |
26 | //\r | |
27 | AUTH_ALGORITHM mIpsecAuthAlgorithmList[IPSEC_AUTH_ALGORITHM_LIST_SIZE] = {\r | |
28 | {EFI_IPSEC_AALG_NONE, 0, 0, 0, NULL, NULL, NULL, NULL},\r | |
29 | {EFI_IPSEC_AALG_NULL, 0, 0, 0, NULL, NULL, NULL, NULL},\r | |
30 | {(UINT8)-1, 0, 0, 0, NULL, NULL, NULL, NULL}\r | |
31 | };\r | |
32 | \r | |
33 | \r | |
34 | /**\r | |
35 | Get the block size of encrypt alogrithm. The block size is based on the algorithm used.\r | |
36 | \r | |
37 | @param[in] AlgorithmId The encrypt algorithm ID.\r | |
38 | \r | |
39 | @return The value of block size.\r | |
40 | \r | |
41 | **/\r | |
42 | UINTN\r | |
43 | IpSecGetEncryptBlockSize (\r | |
44 | IN UINT8 AlgorithmId\r | |
45 | )\r | |
46 | {\r | |
47 | UINT8 Index;\r | |
48 | \r | |
49 | for (Index = 0; Index < IPSEC_ENCRYPT_ALGORITHM_LIST_SIZE; Index++) {\r | |
50 | if (AlgorithmId == mIpsecEncryptAlgorithmList[Index].AlgorithmId) {\r | |
51 | //\r | |
52 | // The BlockSize is same with IvSize.\r | |
53 | //\r | |
54 | return mIpsecEncryptAlgorithmList[Index].BlockSize;\r | |
55 | }\r | |
56 | }\r | |
57 | \r | |
58 | return (UINTN) -1;\r | |
59 | }\r | |
60 | \r | |
61 | /**\r | |
62 | Get the IV size of encrypt alogrithm. The IV size is based on the algorithm used.\r | |
63 | \r | |
64 | @param[in] AlgorithmId The encrypt algorithm ID.\r | |
65 | \r | |
66 | @return The value of IV size.\r | |
67 | \r | |
68 | **/\r | |
69 | UINTN\r | |
70 | IpSecGetEncryptIvLength (\r | |
71 | IN UINT8 AlgorithmId\r | |
72 | )\r | |
73 | {\r | |
74 | UINT8 Index;\r | |
75 | \r | |
76 | for (Index = 0; Index < IPSEC_ENCRYPT_ALGORITHM_LIST_SIZE; Index++) {\r | |
77 | if (AlgorithmId == mIpsecEncryptAlgorithmList[Index].AlgorithmId) {\r | |
78 | //\r | |
79 | // The BlockSize is same with IvSize.\r | |
80 | //\r | |
81 | return mIpsecEncryptAlgorithmList[Index].IvLength;\r | |
82 | }\r | |
83 | }\r | |
84 | \r | |
85 | return (UINTN) -1;\r | |
86 | }\r | |
87 | \r | |
88 | /**\r | |
89 | Get the ICV size of Authenticaion alogrithm. The ICV size is based on the algorithm used.\r | |
90 | \r | |
91 | @param[in] AuthAlgorithmId The Authentication algorithm ID.\r | |
92 | \r | |
93 | @return The value of ICV size.\r | |
94 | \r | |
95 | **/\r | |
96 | UINTN\r | |
97 | IpSecGetIcvLength (\r | |
98 | IN UINT8 AuthAlgorithmId\r | |
99 | )\r | |
100 | {\r | |
101 | UINT8 Index;\r | |
102 | for (Index = 0; Index < IPSEC_AUTH_ALGORITHM_LIST_SIZE; Index++) {\r | |
103 | if (AuthAlgorithmId == mIpsecAuthAlgorithmList[Index].AlgorithmId) {\r | |
104 | return mIpsecAuthAlgorithmList[Index].IcvLength;\r | |
105 | }\r | |
106 | }\r | |
107 | return (UINTN) -1;\r | |
108 | }\r | |
109 | \r | |
110 | /**\r | |
111 | Generate a random data for IV. If the IvSize is zero, not needed to create\r | |
112 | IV and return EFI_SUCCESS.\r | |
113 | \r | |
114 | @param[in] IvBuffer The pointer of the IV buffer.\r | |
115 | @param[in] IvSize The IV size.\r | |
116 | \r | |
117 | @retval EFI_SUCCESS Create a random data for IV.\r | |
118 | \r | |
119 | **/\r | |
120 | EFI_STATUS\r | |
121 | IpSecGenerateIv (\r | |
122 | IN UINT8 *IvBuffer,\r | |
123 | IN UINTN IvSize\r | |
124 | )\r | |
125 | {\r | |
126 | if (IvSize != 0) {\r | |
127 | //\r | |
128 | //TODO: return CryptGenerateRandom (IvBuffer, IvSize);\r | |
129 | //\r | |
130 | return EFI_SUCCESS;\r | |
131 | }\r | |
132 | return EFI_SUCCESS;\r | |
133 | }\r |