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The PKCS#7 certificate should contain a "Microsoft individual code signing" data blob as its signed content. This blob contains a digest of the signed content of the PE binary and the OID of the digest algorithm used (typically SHA256). Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Vivek Goyal <vgoyal@redhat.com> Reviewed-by: Kees Cook <keescook@chromium.org>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* PE Binary parser bits
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*
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* Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#include <linux/verify_pefile.h>
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#include <crypto/pkcs7.h>
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#include <crypto/hash_info.h>
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struct pefile_context {
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unsigned header_size;
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unsigned image_checksum_offset;
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unsigned cert_dirent_offset;
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unsigned n_data_dirents;
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unsigned n_sections;
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unsigned certs_size;
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unsigned sig_offset;
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unsigned sig_len;
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const struct section_header *secs;
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struct pkcs7_message *pkcs7;
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/* PKCS#7 MS Individual Code Signing content */
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const void *digest; /* Digest */
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unsigned digest_len; /* Digest length */
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enum hash_algo digest_algo; /* Digest algorithm */
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};
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#define kenter(FMT, ...) \
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pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__)
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#define kleave(FMT, ...) \
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pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__)
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/*
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* mscode_parser.c
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*/
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extern int mscode_parse(struct pefile_context *ctx);
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