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1 /** @file
2   GUID for UEFI WIN_CERTIFICATE structure.
3 
4   Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
5   This program and the accompanying materials
6   are licensed and made available under the terms and conditions of the BSD License
7   which accompanies this distribution.  The full text of the license may be found at
8   http://opensource.org/licenses/bsd-license.php
9 
10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12 
13   @par Revision Reference:
14   GUID defined in UEFI 2.0 spec.
15 **/
16 
17 #ifndef __EFI_WIN_CERTIFICATE_H__
18 #define __EFI_WIN_CERTIFICATE_H__
19 
20 //
21 // _WIN_CERTIFICATE.wCertificateType
22 //
23 #define WIN_CERT_TYPE_PKCS_SIGNED_DATA 0x0002
24 #define WIN_CERT_TYPE_EFI_PKCS115      0x0EF0
25 #define WIN_CERT_TYPE_EFI_GUID         0x0EF1
26 
27 ///
28 /// The WIN_CERTIFICATE structure is part of the PE/COFF specification.
29 ///
30 typedef struct {
31   ///
32   /// The length of the entire certificate,
33   /// including the length of the header, in bytes.
34   ///
35   UINT32  dwLength;
36   ///
37   /// The revision level of the WIN_CERTIFICATE
38   /// structure. The current revision level is 0x0200.
39   ///
40   UINT16  wRevision;
41   ///
42   /// The certificate type. See WIN_CERT_TYPE_xxx for the UEFI
43   /// certificate types. The UEFI specification reserves the range of
44   /// certificate type values from 0x0EF0 to 0x0EFF.
45   ///
46   UINT16  wCertificateType;
47   ///
48   /// The following is the actual certificate. The format of
49   /// the certificate depends on wCertificateType.
50   ///
51   /// UINT8 bCertificate[ANYSIZE_ARRAY];
52   ///
53 } WIN_CERTIFICATE;
54 
55 ///
56 /// WIN_CERTIFICATE_UEFI_GUID.CertType
57 ///
58 #define EFI_CERT_TYPE_RSA2048_SHA256_GUID \
59   {0xa7717414, 0xc616, 0x4977, {0x94, 0x20, 0x84, 0x47, 0x12, 0xa7, 0x35, 0xbf } }
60 
61 ///
62 /// WIN_CERTIFICATE_UEFI_GUID.CertData
63 ///
64 typedef struct {
65   EFI_GUID  HashType;
66   UINT8     PublicKey[256];
67   UINT8     Signature[256];
68 } EFI_CERT_BLOCK_RSA_2048_SHA256;
69 
70 
71 ///
72 /// Certificate which encapsulates a GUID-specific digital signature
73 ///
74 typedef struct {
75   ///
76   /// This is the standard WIN_CERTIFICATE header, where
77   /// wCertificateType is set to WIN_CERT_TYPE_EFI_GUID.
78   ///
79   WIN_CERTIFICATE   Hdr;
80   ///
81   /// This is the unique id which determines the
82   /// format of the CertData. .
83   ///
84   EFI_GUID          CertType;
85   ///
86   /// The following is the certificate data. The format of
87   /// the data is determined by the CertType.
88   /// If CertType is EFI_CERT_TYPE_RSA2048_SHA256_GUID,
89   /// the CertData will be EFI_CERT_BLOCK_RSA_2048_SHA256 structure.
90   ///
91   UINT8            CertData[1];
92 } WIN_CERTIFICATE_UEFI_GUID;
93 
94 
95 ///
96 /// Certificate which encapsulates the RSASSA_PKCS1-v1_5 digital signature.
97 ///
98 /// The WIN_CERTIFICATE_UEFI_PKCS1_15 structure is derived from
99 /// WIN_CERTIFICATE and encapsulate the information needed to
100 /// implement the RSASSA-PKCS1-v1_5 digital signature algorithm as
101 /// specified in RFC2437.
102 ///
103 typedef struct {
104   ///
105   /// This is the standard WIN_CERTIFICATE header, where
106   /// wCertificateType is set to WIN_CERT_TYPE_UEFI_PKCS1_15.
107   ///
108   WIN_CERTIFICATE Hdr;
109   ///
110   /// This is the hashing algorithm which was performed on the
111   /// UEFI executable when creating the digital signature.
112   ///
113   EFI_GUID        HashAlgorithm;
114   ///
115   /// The following is the actual digital signature. The
116   /// size of the signature is the same size as the key
117   /// (1024-bit key is 128 bytes) and can be determined by
118   /// subtracting the length of the other parts of this header
119   /// from the total length of the certificate as found in
120   /// Hdr.dwLength.
121   ///
122   /// UINT8 Signature[];
123   ///
124 } WIN_CERTIFICATE_EFI_PKCS1_15;
125 
126 extern EFI_GUID gEfiCertTypeRsa2048Sha256Guid;
127 
128 #endif
129