protocols/common/efi/efi_image_authentication.h

/*
 * Copyright (c) 2023, Arm Limited. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *
 */

#ifndef __IMAGE_AUTHTICATION_H__
#define __IMAGE_AUTHTICATION_H__

#include <stdint.h>
#include <protocols/common/efi/efi_types.h>

#define EFI_IMAGE_SECURITY_DATABASE_GUID \
  { \
    0xd719b2cb, 0x3d3a, 0x4596, { 0xa3, 0xbc, 0xda, 0xd0, 0xe, 0x67, 0x65, 0x6f } \
  }

///
/// Variable name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
/// for the authorized signature database.
///
#define EFI_IMAGE_SECURITY_DATABASE  u"db"
///
/// Variable name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
/// for the forbidden signature database.
///
#define EFI_IMAGE_SECURITY_DATABASE1  u"dbx"
///
/// Variable name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
/// for the timestamp signature database.
///
#define EFI_IMAGE_SECURITY_DATABASE2  u"dbt"
///
/// Variable name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
/// for the recovery signature database.
///
#define EFI_IMAGE_SECURITY_DATABASE3  u"dbr"

// ***********************************************************************
// Signature Database
// ***********************************************************************
///
/// The format of a signature database.
///
#pragma pack(push, 1)

typedef struct {
  ///
  /// An identifier which identifies the agent which added the signature to the list.
  ///
  EFI_GUID    SignatureOwner;
  ///
  /// The format of the signature is defined by the SignatureType.
  ///
  uint8_t       SignatureData[1];
} EFI_SIGNATURE_DATA;

typedef struct {
  ///
  /// Type of the signature. GUID signature types are defined in below.
  ///
  EFI_GUID    SignatureType;
  ///
  /// Total size of the signature list, including this header.
  ///
  uint32_t      SignatureListSize;
  ///
  /// Size of the signature header which precedes the array of signatures.
  ///
  uint32_t      SignatureHeaderSize;
  ///
  /// Size of each signature.
  ///
  uint32_t      SignatureSize;
  ///
  /// Header before the array of signatures. The format of this header is specified
  /// by the SignatureType.
  /// uint8_t           SignatureHeader[SignatureHeaderSize];
  ///
  /// An array of signatures. Each signature is SignatureSize bytes in length.
  /// EFI_SIGNATURE_DATA Signatures[][SignatureSize];
  ///
} EFI_SIGNATURE_LIST;

/* IMPORTED SECTION BEGIN */
/* This section was imported from MdePkg/Include/Protocol/Hash.h inside EDK2 repository */
typedef uint8_t EFI_MD5_HASH[16];
typedef uint8_t EFI_SHA1_HASH[20];
typedef uint8_t EFI_SHA224_HASH[28];
typedef uint8_t EFI_SHA256_HASH[32];
typedef uint8_t EFI_SHA384_HASH[48];
typedef uint8_t EFI_SHA512_HASH[64];
/* IMPORTED SECTION END */

typedef struct {
  ///
  /// The SHA256 hash of an X.509 certificate's To-Be-Signed contents.
  ///
  EFI_SHA256_HASH    ToBeSignedHash;
  ///
  /// The time that the certificate shall be considered to be revoked.
  ///
  EFI_TIME           TimeOfRevocation;
} EFI_CERT_X509_SHA256;

typedef struct {
  ///
  /// The SHA384 hash of an X.509 certificate's To-Be-Signed contents.
  ///
  EFI_SHA384_HASH    ToBeSignedHash;
  ///
  /// The time that the certificate shall be considered to be revoked.
  ///
  EFI_TIME           TimeOfRevocation;
} EFI_CERT_X509_SHA384;

typedef struct {
  ///
  /// The SHA512 hash of an X.509 certificate's To-Be-Signed contents.
  ///
  EFI_SHA512_HASH    ToBeSignedHash;
  ///
  /// The time that the certificate shall be considered to be revoked.
  ///
  EFI_TIME           TimeOfRevocation;
} EFI_CERT_X509_SHA512;

#pragma pack(pop)

///
/// This identifies a signature containing a SHA-256 hash. The SignatureHeader size shall
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
/// 32 bytes.
///
#define EFI_CERT_SHA256_GUID \
  { \
    0xc1c41626, 0x504c, 0x4092, {0xac, 0xa9, 0x41, 0xf9, 0x36, 0x93, 0x43, 0x28} \
  }

///
/// This identifies a signature containing an RSA-2048 key. The key (only the modulus
/// since the public key exponent is known to be 0x10001) shall be stored in big-endian
/// order.
/// The SignatureHeader size shall always be 0. The SignatureSize shall always be 16 (size
/// of SignatureOwner component) + 256 bytes.
///
#define EFI_CERT_RSA2048_GUID \
  { \
    0x3c5766e8, 0x269c, 0x4e34, {0xaa, 0x14, 0xed, 0x77, 0x6e, 0x85, 0xb3, 0xb6} \
  }

///
/// This identifies a signature containing a RSA-2048 signature of a SHA-256 hash.  The
/// SignatureHeader size shall always be 0. The SignatureSize shall always be 16 (size of
/// SignatureOwner component) + 256 bytes.
///
#define EFI_CERT_RSA2048_SHA256_GUID \
  { \
    0xe2b36190, 0x879b, 0x4a3d, {0xad, 0x8d, 0xf2, 0xe7, 0xbb, 0xa3, 0x27, 0x84} \
  }

///
/// This identifies a signature containing a SHA-1 hash.  The SignatureSize shall always
/// be 16 (size of SignatureOwner component) + 20 bytes.
///
#define EFI_CERT_SHA1_GUID \
  { \
    0x826ca512, 0xcf10, 0x4ac9, {0xb1, 0x87, 0xbe, 0x1, 0x49, 0x66, 0x31, 0xbd} \
  }

///
/// TThis identifies a signature containing a RSA-2048 signature of a SHA-1 hash.  The
/// SignatureHeader size shall always be 0. The SignatureSize shall always be 16 (size of
/// SignatureOwner component) + 256 bytes.
///
#define EFI_CERT_RSA2048_SHA1_GUID \
  { \
    0x67f8444f, 0x8743, 0x48f1, {0xa3, 0x28, 0x1e, 0xaa, 0xb8, 0x73, 0x60, 0x80} \
  }

///
/// This identifies a signature based on an X.509 certificate. If the signature is an X.509
/// certificate then verification of the signature of an image should validate the public
/// key certificate in the image using certificate path verification, up to this X.509
/// certificate as a trusted root.  The SignatureHeader size shall always be 0. The
/// SignatureSize may vary but shall always be 16 (size of the SignatureOwner component) +
/// the size of the certificate itself.
/// Note: This means that each certificate will normally be in a separate EFI_SIGNATURE_LIST.
///
#define EFI_CERT_X509_GUID \
  { \
    0xa5c059a1, 0x94e4, 0x4aa7, {0x87, 0xb5, 0xab, 0x15, 0x5c, 0x2b, 0xf0, 0x72} \
  }

///
/// This identifies a signature containing a SHA-224 hash. The SignatureHeader size shall
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
/// 28 bytes.
///
#define EFI_CERT_SHA224_GUID \
  { \
    0xb6e5233, 0xa65c, 0x44c9, {0x94, 0x7, 0xd9, 0xab, 0x83, 0xbf, 0xc8, 0xbd} \
  }

///
/// This identifies a signature containing a SHA-384 hash. The SignatureHeader size shall
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
/// 48 bytes.
///
#define EFI_CERT_SHA384_GUID \
  { \
    0xff3e5307, 0x9fd0, 0x48c9, {0x85, 0xf1, 0x8a, 0xd5, 0x6c, 0x70, 0x1e, 0x1} \
  }

///
/// This identifies a signature containing a SHA-512 hash. The SignatureHeader size shall
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
/// 64 bytes.
///
#define EFI_CERT_SHA512_GUID \
  { \
    0x93e0fae, 0xa6c4, 0x4f50, {0x9f, 0x1b, 0xd4, 0x1e, 0x2b, 0x89, 0xc1, 0x9a} \
  }

///
/// This identifies a signature containing the SHA256 hash of an X.509 certificate's
/// To-Be-Signed contents, and a time of revocation. The SignatureHeader size shall
/// always be 0. The SignatureSize shall always be 16 (size of the SignatureOwner component)
/// + 48 bytes for an EFI_CERT_X509_SHA256 structure. If the TimeOfRevocation is non-zero,
/// the certificate should be considered to be revoked from that time and onwards, and
/// otherwise the certificate shall be considered to always be revoked.
///
#define EFI_CERT_X509_SHA256_GUID \
  { \
    0x3bd2a492, 0x96c0, 0x4079, {0xb4, 0x20, 0xfc, 0xf9, 0x8e, 0xf1, 0x03, 0xed } \
  }

///
/// This identifies a signature containing the SHA384 hash of an X.509 certificate's
/// To-Be-Signed contents, and a time of revocation. The SignatureHeader size shall
/// always be 0. The SignatureSize shall always be 16 (size of the SignatureOwner component)
/// + 64 bytes for an EFI_CERT_X509_SHA384 structure. If the TimeOfRevocation is non-zero,
/// the certificate should be considered to be revoked from that time and onwards, and
/// otherwise the certificate shall be considered to always be revoked.
///
#define EFI_CERT_X509_SHA384_GUID \
  { \
    0x7076876e, 0x80c2, 0x4ee6, {0xaa, 0xd2, 0x28, 0xb3, 0x49, 0xa6, 0x86, 0x5b } \
  }

///
/// This identifies a signature containing the SHA512 hash of an X.509 certificate's
/// To-Be-Signed contents, and a time of revocation. The SignatureHeader size shall
/// always be 0. The SignatureSize shall always be 16 (size of the SignatureOwner component)
/// + 80 bytes for an EFI_CERT_X509_SHA512 structure. If the TimeOfRevocation is non-zero,
/// the certificate should be considered to be revoked from that time and onwards, and
/// otherwise the certificate shall be considered to always be revoked.
///
#define EFI_CERT_X509_SHA512_GUID \
  { \
    0x446dbf63, 0x2502, 0x4cda, {0xbc, 0xfa, 0x24, 0x65, 0xd2, 0xb0, 0xfe, 0x9d } \
  }

///
/// This identifies a signature containing a DER-encoded PKCS #7 version 1.5 [RFC2315]
/// SignedData value.
///
#define EFI_CERT_TYPE_PKCS7_GUID \
  { \
    0x4aafd29d, 0x68df, 0x49ee, {0x8a, 0xa9, 0x34, 0x7d, 0x37, 0x56, 0x65, 0xa7} \
  }

#endif /* __IMAGE_AUTHTICATION_H__ */