1 /** @file
2 GUID for UEFI WIN_CERTIFICATE structure.
3 
4 Copyright (c) 2006 - 2010, 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_UEFI_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