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Certs changes 

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Merge tag 'certs-20220621' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull signature checking selftest from David Howells:
 "The signature checking code, as used by module signing, kexec, etc.,
  is non-FIPS compliant as there is no selftest.

  For a kernel to be FIPS-compliant, signature checking would have to be
  tested before being used, and the box would need to panic if it's not
  available (probably reasonable as simply disabling signature checking
  would prevent you from loading any driver modules).

  Deal with this by adding a minimal test.

  This is split into two patches: the first moves load_certificate_list()
  to the same place as the X.509 code to make it more accessible
  internally; the second adds a selftest"

* tag 'certs-20220621' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  certs: Add FIPS selftests
  certs: Move load_certificate_list() to be with the asymmetric keys code
This commit is contained in:
Linus Torvalds 2022-06-21 12:13:53 -05:00
parent ff872b76b3 3cde3174eb
commit 0273fd423b
11 changed files with 268 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
certs/Makefile
View File

@ -3,8 +3,8 @@
# Makefile for the linux kernel signature checking certificates. # Makefile for the linux kernel signature checking certificates.
# #
obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o common.o obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o common.o obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o
obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o
ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),) ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),)

8
certs/blacklist.c
View File

@ -15,10 +15,9 @@
#include <linux/err.h> #include <linux/err.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
#include <linux/uidgid.h> #include <linux/uidgid.h>
#include <linux/verification.h> #include <keys/asymmetric-type.h>
#include <keys/system_keyring.h> #include <keys/system_keyring.h>
#include "blacklist.h" #include "blacklist.h"
#include "common.h"
/* /*
* According to crypto/asymmetric_keys/x509_cert_parser.c:x509_note_pkey_algo(), * According to crypto/asymmetric_keys/x509_cert_parser.c:x509_note_pkey_algo(),
@ -365,8 +364,9 @@ static __init int load_revocation_certificate_list(void)
if (revocation_certificate_list_size) if (revocation_certificate_list_size)
pr_notice("Loading compiled-in revocation X.509 certificates\n"); pr_notice("Loading compiled-in revocation X.509 certificates\n");
return load_certificate_list(revocation_certificate_list, revocation_certificate_list_size, return x509_load_certificate_list(revocation_certificate_list,
blacklist_keyring); revocation_certificate_list_size,
blacklist_keyring);
} }
late_initcall(load_revocation_certificate_list); late_initcall(load_revocation_certificate_list);
#endif #endif

9
certs/common.h
View File

@ -1,9 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _CERT_COMMON_H
#define _CERT_COMMON_H
int load_certificate_list(const u8 cert_list[], const unsigned long list_size,
const struct key *keyring);
#endif

6
certs/system_keyring.c
View File

@ -16,7 +16,6 @@
#include <keys/asymmetric-type.h> #include <keys/asymmetric-type.h>
#include <keys/system_keyring.h> #include <keys/system_keyring.h>
#include <crypto/pkcs7.h> #include <crypto/pkcs7.h>
#include "common.h"
static struct key *builtin_trusted_keys; static struct key *builtin_trusted_keys;
#ifdef CONFIG_SECONDARY_TRUSTED_KEYRING #ifdef CONFIG_SECONDARY_TRUSTED_KEYRING
@ -183,7 +182,8 @@ __init int load_module_cert(struct key *keyring)
pr_notice("Loading compiled-in module X.509 certificates\n"); pr_notice("Loading compiled-in module X.509 certificates\n");
return load_certificate_list(system_certificate_list, module_cert_size, keyring); return x509_load_certificate_list(system_certificate_list,
module_cert_size, keyring);
} }
/* /*
@ -204,7 +204,7 @@ static __init int load_system_certificate_list(void)
size = system_certificate_list_size - module_cert_size; size = system_certificate_list_size - module_cert_size;
#endif #endif
return load_certificate_list(p, size, builtin_trusted_keys); return x509_load_certificate_list(p, size, builtin_trusted_keys);
} }
late_initcall(load_system_certificate_list); late_initcall(load_system_certificate_list);

10
crypto/asymmetric_keys/Kconfig
View File

@ -75,4 +75,14 @@ config SIGNED_PE_FILE_VERIFICATION
This option provides support for verifying the signature(s) on a This option provides support for verifying the signature(s) on a
signed PE binary. signed PE binary.
config FIPS_SIGNATURE_SELFTEST
bool "Run FIPS selftests on the X.509+PKCS7 signature verification"
help
This option causes some selftests to be run on the signature
verification code, using some built in data. This is required
for FIPS.
depends on KEYS
depends on ASYMMETRIC_KEY_TYPE
depends on PKCS7_MESSAGE_PARSER
endif # ASYMMETRIC_KEY_TYPE endif # ASYMMETRIC_KEY_TYPE

2
crypto/asymmetric_keys/Makefile
View File

@ -20,7 +20,9 @@ x509_key_parser-y := \
x509.asn1.o \ x509.asn1.o \
x509_akid.asn1.o \ x509_akid.asn1.o \
x509_cert_parser.o \ x509_cert_parser.o \
x509_loader.o \
x509_public_key.o x509_public_key.o
x509_key_parser-$(CONFIG_FIPS_SIGNATURE_SELFTEST) += selftest.o
$(obj)/x509_cert_parser.o: \ $(obj)/x509_cert_parser.o: \
$(obj)/x509.asn1.h \ $(obj)/x509.asn1.h \

224
crypto/asymmetric_keys/selftest.c Normal file
View File

@ -0,0 +1,224 @@
/* Self-testing for signature checking.
*
* Copyright (C) 2022 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#include <linux/kernel.h>
#include <linux/cred.h>
#include <linux/key.h>
#include <crypto/pkcs7.h>
#include "x509_parser.h"
struct certs_test {
const u8 *data;
size_t data_len;
const u8 *pkcs7;
size_t pkcs7_len;
};
/*
* Set of X.509 certificates to provide public keys for the tests. These will
* be loaded into a temporary keyring for the duration of the testing.
*/
static const __initconst u8 certs_selftest_keys[] = {
"\x30\x82\x05\x55\x30\x82\x03\x3d\xa0\x03\x02\x01\x02\x02\x14\x73"
"\x98\xea\x98\x2d\xd0\x2e\xa8\xb1\xcf\x57\xc7\xf2\x97\xb3\xe6\x1a"
"\xfc\x8c\x0a\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x0b"
"\x05\x00\x30\x34\x31\x32\x30\x30\x06\x03\x55\x04\x03\x0c\x29\x43"
"\x65\x72\x74\x69\x66\x69\x63\x61\x74\x65\x20\x76\x65\x72\x69\x66"
"\x69\x63\x61\x74\x69\x6f\x6e\x20\x73\x65\x6c\x66\x2d\x74\x65\x73"
"\x74\x69\x6e\x67\x20\x6b\x65\x79\x30\x20\x17\x0d\x32\x32\x30\x35"
"\x31\x38\x32\x32\x33\x32\x34\x31\x5a\x18\x0f\x32\x31\x32\x32\x30"
"\x34\x32\x34\x32\x32\x33\x32\x34\x31\x5a\x30\x34\x31\x32\x30\x30"
"\x06\x03\x55\x04\x03\x0c\x29\x43\x65\x72\x74\x69\x66\x69\x63\x61"
"\x74\x65\x20\x76\x65\x72\x69\x66\x69\x63\x61\x74\x69\x6f\x6e\x20"
"\x73\x65\x6c\x66\x2d\x74\x65\x73\x74\x69\x6e\x67\x20\x6b\x65\x79"
"\x30\x82\x02\x22\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01"
"\x01\x05\x00\x03\x82\x02\x0f\x00\x30\x82\x02\x0a\x02\x82\x02\x01"
"\x00\xcc\xac\x49\xdd\x3b\xca\xb0\x15\x7e\x84\x6a\xb2\x0a\x69\x5f"
"\x1c\x0a\x61\x82\x3b\x4f\x2c\xa3\x95\x2c\x08\x58\x4b\xb1\x5d\x99"
"\xe0\xc3\xc1\x79\xc2\xb3\xeb\xc0\x1e\x6d\x3e\x54\x1d\xbd\xb7\x92"
"\x7b\x4d\xb5\x95\x58\xb2\x52\x2e\xc6\x24\x4b\x71\x63\x80\x32\x77"
"\xa7\x38\x5e\xdb\x72\xae\x6e\x0d\xec\xfb\xb6\x6d\x01\x7f\xe9\x55"
"\x66\xdf\xbf\x1d\x76\x78\x02\x31\xe8\xe5\x07\xf8\xb7\x82\x5c\x0d"
"\xd4\xbb\xfb\xa2\x59\x0d\x2e\x3a\x78\x95\x3a\x8b\x46\x06\x47\x44"
"\x46\xd7\xcd\x06\x6a\x41\x13\xe3\x19\xf6\xbb\x6e\x38\xf4\x83\x01"
"\xa3\xbf\x4a\x39\x4f\xd7\x0a\xe9\x38\xb3\xf5\x94\x14\x4e\xdd\xf7"
"\x43\xfd\x24\xb2\x49\x3c\xa5\xf7\x7a\x7c\xd4\x45\x3d\x97\x75\x68"
"\xf1\xed\x4c\x42\x0b\x70\xca\x85\xf3\xde\xe5\x88\x2c\xc5\xbe\xb6"
"\x97\x34\xba\x24\x02\xcd\x8b\x86\x9f\xa9\x73\xca\x73\xcf\x92\x81"
"\xee\x75\x55\xbb\x18\x67\x5c\xff\x3f\xb5\xdd\x33\x1b\x0c\xe9\x78"
"\xdb\x5c\xcf\xaa\x5c\x43\x42\xdf\x5e\xa9\x6d\xec\xd7\xd7\xff\xe6"
"\xa1\x3a\x92\x1a\xda\xae\xf6\x8c\x6f\x7b\xd5\xb4\x6e\x06\xe9\x8f"
"\xe8\xde\x09\x31\x89\xed\x0e\x11\xa1\xfa\x8a\xe9\xe9\x64\x59\x62"
"\x53\xda\xd1\x70\xbe\x11\xd4\x99\x97\x11\xcf\x99\xde\x0b\x9d\x94"
"\x7e\xaa\xb8\x52\xea\x37\xdb\x90\x7e\x35\xbd\xd9\xfe\x6d\x0a\x48"
"\x70\x28\xdd\xd5\x0d\x7f\x03\x80\x93\x14\x23\x8f\xb9\x22\xcd\x7c"
"\x29\xfe\xf1\x72\xb5\x5c\x0b\x12\xcf\x9c\x15\xf6\x11\x4c\x7a\x45"
"\x25\x8c\x45\x0a\x34\xac\x2d\x9a\x81\xca\x0b\x13\x22\xcd\xeb\x1a"
"\x38\x88\x18\x97\x96\x08\x81\xaa\xcc\x8f\x0f\x8a\x32\x7b\x76\x68"
"\x03\x68\x43\xbf\x11\xba\x55\x60\xfd\x80\x1c\x0d\x9b\x69\xb6\x09"
"\x72\xbc\x0f\x41\x2f\x07\x82\xc6\xe3\xb2\x13\x91\xc4\x6d\x14\x95"
"\x31\xbe\x19\xbd\xbc\xed\xe1\x4c\x74\xa2\xe0\x78\x0b\xbb\x94\xec"
"\x4c\x53\x3a\xa2\xb5\x84\x1d\x4b\x65\x7e\xdc\xf7\xdb\x36\x7d\xbe"
"\x9e\x3b\x36\x66\x42\x66\x76\x35\xbf\xbe\xf0\xc1\x3c\x7c\xe9\x42"
"\x5c\x24\x53\x03\x05\xa8\x67\x24\x50\x02\x75\xff\x24\x46\x3b\x35"
"\x89\x76\xe6\x70\xda\xc5\x51\x8c\x9a\xe5\x05\xb0\x0b\xd0\x2d\xd4"
"\x7d\x57\x75\x94\x6b\xf9\x0a\xad\x0e\x41\x00\x15\xd0\x4f\xc0\x7f"
"\x90\x2d\x18\x48\x8f\x28\xfe\x5d\xa7\xcd\x99\x9e\xbd\x02\x6c\x8a"
"\x31\xf3\x1c\xc7\x4b\xe6\x93\xcd\x42\xa2\xe4\x68\x10\x47\x9d\xfc"
"\x21\x02\x03\x01\x00\x01\xa3\x5d\x30\x5b\x30\x0c\x06\x03\x55\x1d"
"\x13\x01\x01\xff\x04\x02\x30\x00\x30\x0b\x06\x03\x55\x1d\x0f\x04"
"\x04\x03\x02\x07\x80\x30\x1d\x06\x03\x55\x1d\x0e\x04\x16\x04\x14"
"\xf5\x87\x03\xbb\x33\xce\x1b\x73\xee\x02\xec\xcd\xee\x5b\x88\x17"
"\x51\x8f\xe3\xdb\x30\x1f\x06\x03\x55\x1d\x23\x04\x18\x30\x16\x80"
"\x14\xf5\x87\x03\xbb\x33\xce\x1b\x73\xee\x02\xec\xcd\xee\x5b\x88"
"\x17\x51\x8f\xe3\xdb\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01"
"\x01\x0b\x05\x00\x03\x82\x02\x01\x00\xc0\x2e\x12\x41\x7b\x73\x85"
"\x16\xc8\xdb\x86\x79\xe8\xf5\xcd\x44\xf4\xc6\xe2\x81\x23\x5e\x47"
"\xcb\xab\x25\xf1\x1e\x58\x3e\x31\x7f\x78\xad\x85\xeb\xfe\x14\x88"
"\x60\xf7\x7f\xd2\x26\xa2\xf4\x98\x2a\xfd\xba\x05\x0c\x20\x33\x12"
"\xcc\x4d\x14\x61\x64\x81\x93\xd3\x33\xed\xc8\xff\xf1\x78\xcc\x5f"
"\x51\x9f\x09\xd7\xbe\x0d\x5c\x74\xfd\x9b\xdf\x52\x4a\xc9\xa8\x71"
"\x25\x33\x04\x10\x67\x36\xd0\xb3\x0b\xc9\xa1\x40\x72\xae\x41\x7b"
"\x68\xe6\xe4\x7b\xd0\x28\xf7\x6d\xe7\x3f\x50\xfc\x91\x7c\x91\x56"
"\xd4\xdf\xa6\xbb\xe8\x4d\x1b\x58\xaa\x28\xfa\xc1\x19\xeb\x11\x2f"
"\x24\x8b\x7c\xc5\xa9\x86\x26\xaa\x6e\xb7\x9b\xd5\xf8\x06\xfb\x02"
"\x52\x7b\x9c\x9e\xa1\xe0\x07\x8b\x5e\xe4\xb8\x55\x29\xf6\x48\x52"
"\x1c\x1b\x54\x2d\x46\xd8\xe5\x71\xb9\x60\xd1\x45\xb5\x92\x89\x8a"
"\x63\x58\x2a\xb3\xc6\xb2\x76\xe2\x3c\x82\x59\x04\xae\x5a\xc4\x99"
"\x7b\x2e\x4b\x46\x57\xb8\x29\x24\xb2\xfd\xee\x2c\x0d\xa4\x83\xfa"
"\x65\x2a\x07\x35\x8b\x97\xcf\xbd\x96\x2e\xd1\x7e\x6c\xc2\x1e\x87"
"\xb6\x6c\x76\x65\xb5\xb2\x62\xda\x8b\xe9\x73\xe3\xdb\x33\xdd\x13"
"\x3a\x17\x63\x6a\x76\xde\x8d\x8f\xe0\x47\x61\x28\x3a\x83\xff\x8f"
"\xe7\xc7\xe0\x4a\xa3\xe5\x07\xcf\xe9\x8c\x35\x35\x2e\xe7\x80\x66"
"\x31\xbf\x91\x58\x0a\xe1\x25\x3d\x38\xd3\xa4\xf0\x59\x34\x47\x07"
"\x62\x0f\xbe\x30\xdd\x81\x88\x58\xf0\x28\xb0\x96\xe5\x82\xf8\x05"
"\xb7\x13\x01\xbc\xfa\xc6\x1f\x86\x72\xcc\xf9\xee\x8e\xd9\xd6\x04"
"\x8c\x24\x6c\xbf\x0f\x5d\x37\x39\xcf\x45\xc1\x93\x3a\xd2\xed\x5c"
"\x58\x79\x74\x86\x62\x30\x7e\x8e\xbb\xdd\x7a\xa9\xed\xca\x40\xcb"
"\x62\x47\xf4\xb4\x9f\x52\x7f\x72\x63\xa8\xf0\x2b\xaf\x45\x2a\x48"
"\x19\x6d\xe3\xfb\xf9\x19\x66\x69\xc8\xcc\x62\x87\x6c\x53\x2b\x2d"
"\x6e\x90\x6c\x54\x3a\x82\x25\x41\xcb\x18\x6a\xa4\x22\xa8\xa1\xc4"
"\x47\xd7\x81\x00\x1c\x15\x51\x0f\x1a\xaf\xef\x9f\xa6\x61\x8c\xbd"
"\x6b\x8b\xed\xe6\xac\x0e\xb6\x3a\x4c\x92\xe6\x0f\x91\x0a\x0f\x71"
"\xc7\xa0\xb9\x0d\x3a\x17\x5a\x6f\x35\xc8\xe7\x50\x4f\x46\xe8\x70"
"\x60\x48\x06\x82\x8b\x66\x58\xe6\x73\x91\x9c\x12\x3d\x35\x8e\x46"
"\xad\x5a\xf5\xb3\xdb\x69\x21\x04\xfd\xd3\x1c\xdf\x94\x9d\x56\xb0"
"\x0a\xd1\x95\x76\x8d\xec\x9e\xdd\x0b\x15\x97\x64\xad\xe5\xf2\x62"
"\x02\xfc\x9e\x5f\x56\x42\x39\x05\xb3"
};
/*
* Signed data and detached signature blobs that form the verification tests.
*/
static const __initconst u8 certs_selftest_1_data[] = {
"\x54\x68\x69\x73\x20\x69\x73\x20\x73\x6f\x6d\x65\x20\x74\x65\x73"
"\x74\x20\x64\x61\x74\x61\x20\x75\x73\x65\x64\x20\x66\x6f\x72\x20"
"\x73\x65\x6c\x66\x2d\x74\x65\x73\x74\x69\x6e\x67\x20\x63\x65\x72"
"\x74\x69\x66\x69\x63\x61\x74\x65\x20\x76\x65\x72\x69\x66\x69\x63"
"\x61\x74\x69\x6f\x6e\x2e\x0a"
};
static const __initconst u8 certs_selftest_1_pkcs7[] = {
"\x30\x82\x02\xab\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x07\x02\xa0"
"\x82\x02\x9c\x30\x82\x02\x98\x02\x01\x01\x31\x0d\x30\x0b\x06\x09"
"\x60\x86\x48\x01\x65\x03\x04\x02\x01\x30\x0b\x06\x09\x2a\x86\x48"
"\x86\xf7\x0d\x01\x07\x01\x31\x82\x02\x75\x30\x82\x02\x71\x02\x01"
"\x01\x30\x4c\x30\x34\x31\x32\x30\x30\x06\x03\x55\x04\x03\x0c\x29"
"\x43\x65\x72\x74\x69\x66\x69\x63\x61\x74\x65\x20\x76\x65\x72\x69"
"\x66\x69\x63\x61\x74\x69\x6f\x6e\x20\x73\x65\x6c\x66\x2d\x74\x65"
"\x73\x74\x69\x6e\x67\x20\x6b\x65\x79\x02\x14\x73\x98\xea\x98\x2d"
"\xd0\x2e\xa8\xb1\xcf\x57\xc7\xf2\x97\xb3\xe6\x1a\xfc\x8c\x0a\x30"
"\x0b\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x30\x0d\x06\x09"
"\x2a\x86\x48\x86\xf7\x0d\x01\x01\x01\x05\x00\x04\x82\x02\x00\xac"
"\xb0\xf2\x07\xd6\x99\x6d\xc0\xc0\xd9\x8d\x31\x0d\x7e\x04\xeb\xc3"
"\x88\x90\xc4\x58\x46\xd4\xe2\xa0\xa3\x25\xe3\x04\x50\x37\x85\x8c"
"\x91\xc6\xfc\xc5\xd4\x92\xfd\x05\xd8\xb8\xa3\xb8\xba\x89\x13\x00"
"\x88\x79\x99\x51\x6b\x5b\x28\x31\xc0\xb3\x1b\x7a\x68\x2c\x00\xdb"
"\x4b\x46\x11\xf3\xfa\x50\x8e\x19\x89\xa2\x4c\xda\x4c\x89\x01\x11"
"\x89\xee\xd3\xc8\xc1\xe7\xa7\xf6\xb2\xa2\xf8\x65\xb8\x35\x20\x33"
"\xba\x12\x62\xd5\xbd\xaa\x71\xe5\x5b\xc0\x6a\x32\xff\x6a\x2e\x23"
"\xef\x2b\xb6\x58\xb1\xfb\x5f\x82\x34\x40\x6d\x9f\xbc\x27\xac\x37"
"\x23\x99\xcf\x7d\x20\xb2\x39\x01\xc0\x12\xce\xd7\x5d\x2f\xb6\xab"
"\xb5\x56\x4f\xef\xf4\x72\x07\x58\x65\xa9\xeb\x1f\x75\x1c\x5f\x0c"
"\x88\xe0\xa4\xe2\xcd\x73\x2b\x9e\xb2\x05\x7e\x12\xf8\xd0\x66\x41"
"\xcc\x12\x63\xd4\xd6\xac\x9b\x1d\x14\x77\x8d\x1c\x57\xd5\x27\xc6"
"\x49\xa2\x41\x43\xf3\x59\x29\xe5\xcb\xd1\x75\xbc\x3a\x97\x2a\x72"
"\x22\x66\xc5\x3b\xc1\xba\xfc\x53\x18\x98\xe2\x21\x64\xc6\x52\x87"
"\x13\xd5\x7c\x42\xe8\xfb\x9c\x9a\x45\x32\xd5\xa5\x22\x62\x9d\xd4"
"\xcb\xa4\xfa\x77\xbb\x50\x24\x0b\x8b\x88\x99\x15\x56\xa9\x1e\x92"
"\xbf\x5d\x94\x77\xb6\xf1\x67\x01\x60\x06\x58\x5c\xdf\x18\x52\x79"
"\x37\x30\x93\x7d\x87\x04\xf1\xe0\x55\x59\x52\xf3\xc2\xb1\x1c\x5b"
"\x12\x7c\x49\x87\xfb\xf7\xed\xdd\x95\x71\xec\x4b\x1a\x85\x08\xb0"
"\xa0\x36\xc4\x7b\xab\x40\xe0\xf1\x98\xcc\xaf\x19\x40\x8f\x47\x6f"
"\xf0\x6c\x84\x29\x7f\x7f\x04\x46\xcb\x08\x0f\xe0\xc1\xc9\x70\x6e"
"\x95\x3b\xa4\xbc\x29\x2b\x53\x67\x45\x1b\x0d\xbc\x13\xa5\x76\x31"
"\xaf\xb9\xd0\xe0\x60\x12\xd2\xf4\xb7\x7c\x58\x7e\xf6\x2d\xbb\x24"
"\x14\x5a\x20\x24\xa8\x12\xdf\x25\xbd\x42\xce\x96\x7c\x2e\xba\x14"
"\x1b\x81\x9f\x18\x45\xa4\xc6\x70\x3e\x0e\xf0\xd3\x7b\x9c\x10\xbe"
"\xb8\x7a\x89\xc5\x9e\xd9\x97\xdf\xd7\xe7\xc6\x1d\xc0\x20\x6c\xb8"
"\x1e\x3a\x63\xb8\x39\x8e\x8e\x62\xd5\xd2\xb4\xcd\xff\x46\xfc\x8e"
"\xec\x07\x35\x0c\xff\xb0\x05\xe6\xf4\xe5\xfe\xa2\xe3\x0a\xe6\x36"
"\xa7\x4a\x7e\x62\x1d\xc4\x50\x39\x35\x4e\x28\xcb\x4a\xfb\x9d\xdb"
"\xdd\x23\xd6\x53\xb1\x74\x77\x12\xf7\x9c\xf0\x9a\x6b\xf7\xa9\x64"
"\x2d\x86\x21\x2a\xcf\xc6\x54\xf5\xc9\xad\xfa\xb5\x12\xb4\xf3\x51"
"\x77\x55\x3c\x6f\x0c\x32\xd3\x8c\x44\x39\x71\x25\xfe\x96\xd2"
};
/*
* List of tests to be run.
*/
#define TEST(data, pkcs7) { data, sizeof(data) - 1, pkcs7, sizeof(pkcs7) - 1 }
static const struct certs_test certs_tests[] __initconst = {
TEST(certs_selftest_1_data, certs_selftest_1_pkcs7),
};
int __init fips_signature_selftest(void)
{
struct key *keyring;
int ret, i;
pr_notice("Running certificate verification selftests\n");
keyring = keyring_alloc(".certs_selftest",
GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, current_cred(),
(KEY_POS_ALL & ~KEY_POS_SETATTR) |
KEY_USR_VIEW | KEY_USR_READ |
KEY_USR_SEARCH,
KEY_ALLOC_NOT_IN_QUOTA,
NULL, NULL);
if (IS_ERR(keyring))
panic("Can't allocate certs selftest keyring: %ld\n",
PTR_ERR(keyring));
ret = x509_load_certificate_list(certs_selftest_keys,
sizeof(certs_selftest_keys) - 1, keyring);
if (ret < 0)
panic("Can't allocate certs selftest keyring: %d\n", ret);
for (i = 0; i < ARRAY_SIZE(certs_tests); i++) {
const struct certs_test *test = &certs_tests[i];
struct pkcs7_message *pkcs7;
pkcs7 = pkcs7_parse_message(test->pkcs7, test->pkcs7_len);
if (IS_ERR(pkcs7))
panic("Certs selftest %d: pkcs7_parse_message() = %d\n", i, ret);
pkcs7_supply_detached_data(pkcs7, test->data, test->data_len);
ret = pkcs7_verify(pkcs7, VERIFYING_MODULE_SIGNATURE);
if (ret < 0)
panic("Certs selftest %d: pkcs7_verify() = %d\n", i, ret);
ret = pkcs7_validate_trust(pkcs7, keyring);
if (ret < 0)
panic("Certs selftest %d: pkcs7_validate_trust() = %d\n", i, ret);
pkcs7_free_message(pkcs7);
}
key_put(keyring);
return 0;
}

8
certs/common.c → crypto/asymmetric_keys/x509_loader.c
View File

@ -2,11 +2,11 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/key.h> #include <linux/key.h>
#include "common.h" #include <keys/asymmetric-type.h>
int load_certificate_list(const u8 cert_list[], int x509_load_certificate_list(const u8 cert_list[],
const unsigned long list_size, const unsigned long list_size,
const struct key *keyring) const struct key *keyring)
{ {
key_ref_t key; key_ref_t key;
const u8 *p, *end; const u8 *p, *end;

9
crypto/asymmetric_keys/x509_parser.h
View File

@ -40,6 +40,15 @@ struct x509_certificate {
bool blacklisted; bool blacklisted;
}; };
/*
* selftest.c
*/
#ifdef CONFIG_FIPS_SIGNATURE_SELFTEST
extern int __init fips_signature_selftest(void);
#else
static inline int fips_signature_selftest(void) { return 0; }
#endif
/* /*
* x509_cert_parser.c * x509_cert_parser.c
*/ */

8
crypto/asymmetric_keys/x509_public_key.c
View File

@ -244,9 +244,15 @@ static struct asymmetric_key_parser x509_key_parser = {
/* /*
* Module stuff * Module stuff
*/ */
extern int __init certs_selftest(void);
static int __init x509_key_init(void) static int __init x509_key_init(void)
{ {
return register_asymmetric_key_parser(&x509_key_parser); int ret;
ret = register_asymmetric_key_parser(&x509_key_parser);
if (ret < 0)
return ret;
return fips_signature_selftest();
} }
static void __exit x509_key_exit(void) static void __exit x509_key_exit(void)

3
include/keys/asymmetric-type.h
View File

@ -84,6 +84,9 @@ extern struct key *find_asymmetric_key(struct key *keyring,
const struct asymmetric_key_id *id_2, const struct asymmetric_key_id *id_2,
bool partial); bool partial);
int x509_load_certificate_list(const u8 cert_list[], const unsigned long list_size,
const struct key *keyring);
/* /*
* The payload is at the discretion of the subtype. * The payload is at the discretion of the subtype.
*/ */