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osslsigncode.c
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osslsigncode.c
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/*
OpenSSL based Authenticode signing for PE/MSI/Java CAB files.
Copyright (C) 2005-2015 Per Allansson <[email protected]>
Copyright (C) 2018-2021 Michał Trojnara <[email protected]>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http:https://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
*/
/*
Implemented with good help from:
* Peter Gutmann's analysis of Authenticode:
https://www.cs.auckland.ac.nz/~pgut001/pubs/authenticode.txt
* MS CAB SDK documentation
https://docs.microsoft.com/en-us/previous-versions/ms974336(v=msdn.10)
* MS PE/COFF documentation
https://docs.microsoft.com/en-us/windows/win32/debug/pe-format
* MS Windows Authenticode PE Signature Format
http:https://msdn.microsoft.com/en-US/windows/hardware/gg463183
(Although the part of how the actual checksumming is done is not
how it is done inside Windows. The end result is however the same
on all "normal" PE files.)
* tail -c, tcpdump, mimencode & openssl asn1parse :)
*/
#define OPENSSL_API_COMPAT 0x10100000L
#define OPENSSL_NO_DEPRECATED
#if defined(_MSC_VER) || defined(MINGW32)
#define HAVE_WINDOWS_H
#endif /* _MSC_VER || MINGW32 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#ifdef HAVE_WINDOWS_H
#define NOCRYPT
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif /* HAVE_WINDOWS_H */
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#ifndef _WIN32
#include <unistd.h>
#endif /* _WIN32 */
#include <string.h>
#include <time.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifndef _WIN32
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif /* HAVE_SYS_MMAN_H */
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif /* HAVE_TERMIOS_H */
#endif /* _WIN32 */
#include <openssl/err.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h> /* X509_PURPOSE */
#include <openssl/cms.h>
#include <openssl/pkcs7.h>
#include <openssl/pkcs12.h>
#include <openssl/pem.h>
#include <openssl/asn1t.h>
#include <openssl/bn.h>
#include <openssl/conf.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif /* OPENSSL_NO_ENGINE */
#include "msi.h"
#ifdef ENABLE_CURL
#ifdef __CYGWIN__
#ifndef SOCKET
#define SOCKET UINT_PTR
#endif /* SOCKET */
#endif /* __CYGWIN__ */
#include <curl/curl.h>
#define MAX_TS_SERVERS 256
#endif /* ENABLE_CURL */
#if defined (HAVE_TERMIOS_H) || defined (HAVE_GETPASS)
#define PROVIDE_ASKPASS 1
#endif
#ifdef _WIN32
#define FILE_CREATE_MODE "w+b"
#else
#define FILE_CREATE_MODE "w+bx"
#endif
/* Microsoft OID Authenticode */
#define SPC_INDIRECT_DATA_OBJID "1.3.6.1.4.1.311.2.1.4"
#define SPC_STATEMENT_TYPE_OBJID "1.3.6.1.4.1.311.2.1.11"
#define SPC_SP_OPUS_INFO_OBJID "1.3.6.1.4.1.311.2.1.12"
#define SPC_PE_IMAGE_DATA_OBJID "1.3.6.1.4.1.311.2.1.15"
#define SPC_CAB_DATA_OBJID "1.3.6.1.4.1.311.2.1.25"
#define SPC_SIPINFO_OBJID "1.3.6.1.4.1.311.2.1.30"
#define SPC_PE_IMAGE_PAGE_HASHES_V1 "1.3.6.1.4.1.311.2.3.1" /* SHA1 */
#define SPC_PE_IMAGE_PAGE_HASHES_V2 "1.3.6.1.4.1.311.2.3.2" /* SHA256 */
#define SPC_NESTED_SIGNATURE_OBJID "1.3.6.1.4.1.311.2.4.1"
/* Microsoft OID Time Stamping */
#define SPC_TIME_STAMP_REQUEST_OBJID "1.3.6.1.4.1.311.3.2.1"
#define SPC_RFC3161_OBJID "1.3.6.1.4.1.311.3.3.1"
/* Microsoft OID Crypto 2.0 */
#define MS_CTL_OBJID "1.3.6.1.4.1.311.10.1"
/* Microsoft OID Microsoft_Java */
#define MS_JAVA_SOMETHING "1.3.6.1.4.1.311.15.1"
#define SPC_UNAUTHENTICATED_DATA_BLOB_OBJID "1.3.6.1.4.1.42921.1.2.1"
/* Public Key Cryptography Standards PKCS#9 */
#define PKCS9_MESSAGE_DIGEST "1.2.840.113549.1.9.4"
#define PKCS9_SIGNING_TIME "1.2.840.113549.1.9.5"
#define PKCS9_COUNTER_SIGNATURE "1.2.840.113549.1.9.6"
/* WIN_CERTIFICATE structure declared in Wintrust.h */
#define WIN_CERT_REVISION_2_0 0x0200
#define WIN_CERT_TYPE_PKCS_SIGNED_DATA 0x0002
/*
* FLAG_PREV_CABINET is set if the cabinet file is not the first in a set
* of cabinet files. When this bit is set, the szCabinetPrev and szDiskPrev
* fields are present in this CFHEADER.
*/
#define FLAG_PREV_CABINET 0x0001
/*
* FLAG_NEXT_CABINET is set if the cabinet file is not the last in a set of
* cabinet files. When this bit is set, the szCabinetNext and szDiskNext
* fields are present in this CFHEADER.
*/
#define FLAG_NEXT_CABINET 0x0002
/*
* FLAG_RESERVE_PRESENT is set if the cabinet file contains any reserved
* fields. When this bit is set, the cbCFHeader, cbCFFolder, and cbCFData
* fields are present in this CFHEADER.
*/
#define FLAG_RESERVE_PRESENT 0x0004
#define INVALID_TIME ((time_t)-1)
typedef struct SIGNATURE_st {
PKCS7 *p7;
int md_nid;
ASN1_STRING *digest;
time_t signtime;
char *url;
char *desc;
const u_char *purpose;
const u_char *level;
CMS_ContentInfo *timestamp;
time_t time;
ASN1_STRING *blob;
} SIGNATURE;
DEFINE_STACK_OF(SIGNATURE)
DECLARE_ASN1_FUNCTIONS(SIGNATURE)
typedef struct {
char *infile;
char *outfile;
char *sigfile;
char *certfile;
char *xcertfile;
char *keyfile;
char *pvkfile;
char *pkcs12file;
int output_pkcs7;
#ifndef OPENSSL_NO_ENGINE
char *p11engine;
char *p11module;
char *p11cert;
#endif /* OPENSSL_NO_ENGINE */
int askpass;
char *readpass;
char *pass;
int comm;
int pagehash;
char *desc;
const EVP_MD *md;
char *url;
time_t time;
#ifdef ENABLE_CURL
char *turl[MAX_TS_SERVERS];
int nturl;
char *tsurl[MAX_TS_SERVERS];
int ntsurl;
char *proxy;
int noverifypeer;
#endif /* ENABLE_CURL */
int addBlob;
int nest;
int ignore_timestamp;
int verbose;
int add_msi_dse;
char *catalog;
char *cafile;
char *crlfile;
char *tsa_cafile;
char *tsa_crlfile;
char *leafhash;
int jp;
} GLOBAL_OPTIONS;
typedef struct {
uint32_t header_size;
uint32_t pe32plus;
uint16_t magic;
uint32_t pe_checksum;
uint32_t nrvas;
uint32_t sigpos;
uint32_t siglen;
uint32_t fileend;
uint16_t flags;
} FILE_HEADER;
typedef struct {
EVP_PKEY *pkey;
X509 *cert;
STACK_OF(X509) *certs;
STACK_OF(X509) *xcerts;
STACK_OF(X509_CRL) *crls;
} CRYPTO_PARAMS;
typedef struct {
MSI_FILE *msi;
MSI_DIRENT *dirent;
u_char *p_msiex;
int len_msiex;
} MSI_PARAMS;
/*
* ASN.1 definitions (more or less from official MS Authenticode docs)
*/
typedef struct {
int type;
union {
ASN1_BMPSTRING *unicode;
ASN1_IA5STRING *ascii;
} value;
} SpcString;
DECLARE_ASN1_FUNCTIONS(SpcString)
ASN1_CHOICE(SpcString) = {
ASN1_IMP_OPT(SpcString, value.unicode, ASN1_BMPSTRING, 0),
ASN1_IMP_OPT(SpcString, value.ascii, ASN1_IA5STRING, 1)
} ASN1_CHOICE_END(SpcString)
IMPLEMENT_ASN1_FUNCTIONS(SpcString)
typedef struct {
ASN1_OCTET_STRING *classId;
ASN1_OCTET_STRING *serializedData;
} SpcSerializedObject;
DECLARE_ASN1_FUNCTIONS(SpcSerializedObject)
ASN1_SEQUENCE(SpcSerializedObject) = {
ASN1_SIMPLE(SpcSerializedObject, classId, ASN1_OCTET_STRING),
ASN1_SIMPLE(SpcSerializedObject, serializedData, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(SpcSerializedObject)
IMPLEMENT_ASN1_FUNCTIONS(SpcSerializedObject)
typedef struct {
int type;
union {
ASN1_IA5STRING *url;
SpcSerializedObject *moniker;
SpcString *file;
} value;
} SpcLink;
DECLARE_ASN1_FUNCTIONS(SpcLink)
ASN1_CHOICE(SpcLink) = {
ASN1_IMP_OPT(SpcLink, value.url, ASN1_IA5STRING, 0),
ASN1_IMP_OPT(SpcLink, value.moniker, SpcSerializedObject, 1),
ASN1_EXP_OPT(SpcLink, value.file, SpcString, 2)
} ASN1_CHOICE_END(SpcLink)
IMPLEMENT_ASN1_FUNCTIONS(SpcLink)
typedef struct {
SpcString *programName;
SpcLink *moreInfo;
} SpcSpOpusInfo;
DECLARE_ASN1_FUNCTIONS(SpcSpOpusInfo)
ASN1_SEQUENCE(SpcSpOpusInfo) = {
ASN1_EXP_OPT(SpcSpOpusInfo, programName, SpcString, 0),
ASN1_EXP_OPT(SpcSpOpusInfo, moreInfo, SpcLink, 1)
} ASN1_SEQUENCE_END(SpcSpOpusInfo)
IMPLEMENT_ASN1_FUNCTIONS(SpcSpOpusInfo)
typedef struct {
ASN1_OBJECT *type;
ASN1_TYPE *value;
} SpcAttributeTypeAndOptionalValue;
DECLARE_ASN1_FUNCTIONS(SpcAttributeTypeAndOptionalValue)
ASN1_SEQUENCE(SpcAttributeTypeAndOptionalValue) = {
ASN1_SIMPLE(SpcAttributeTypeAndOptionalValue, type, ASN1_OBJECT),
ASN1_OPT(SpcAttributeTypeAndOptionalValue, value, ASN1_ANY)
} ASN1_SEQUENCE_END(SpcAttributeTypeAndOptionalValue)
IMPLEMENT_ASN1_FUNCTIONS(SpcAttributeTypeAndOptionalValue)
typedef struct {
ASN1_OBJECT *algorithm;
ASN1_TYPE *parameters;
} AlgorithmIdentifier;
DECLARE_ASN1_FUNCTIONS(AlgorithmIdentifier)
ASN1_SEQUENCE(AlgorithmIdentifier) = {
ASN1_SIMPLE(AlgorithmIdentifier, algorithm, ASN1_OBJECT),
ASN1_OPT(AlgorithmIdentifier, parameters, ASN1_ANY)
} ASN1_SEQUENCE_END(AlgorithmIdentifier)
IMPLEMENT_ASN1_FUNCTIONS(AlgorithmIdentifier)
typedef struct {
AlgorithmIdentifier *digestAlgorithm;
ASN1_OCTET_STRING *digest;
} DigestInfo;
DECLARE_ASN1_FUNCTIONS(DigestInfo)
ASN1_SEQUENCE(DigestInfo) = {
ASN1_SIMPLE(DigestInfo, digestAlgorithm, AlgorithmIdentifier),
ASN1_SIMPLE(DigestInfo, digest, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(DigestInfo)
IMPLEMENT_ASN1_FUNCTIONS(DigestInfo)
typedef struct {
SpcAttributeTypeAndOptionalValue *data;
DigestInfo *messageDigest;
} SpcIndirectDataContent;
DECLARE_ASN1_FUNCTIONS(SpcIndirectDataContent)
ASN1_SEQUENCE(SpcIndirectDataContent) = {
ASN1_SIMPLE(SpcIndirectDataContent, data, SpcAttributeTypeAndOptionalValue),
ASN1_SIMPLE(SpcIndirectDataContent, messageDigest, DigestInfo)
} ASN1_SEQUENCE_END(SpcIndirectDataContent)
IMPLEMENT_ASN1_FUNCTIONS(SpcIndirectDataContent)
typedef struct CatalogAuthAttr_st {
ASN1_OBJECT *type;
ASN1_TYPE *contents;
} CatalogAuthAttr;
DEFINE_STACK_OF(CatalogAuthAttr)
DECLARE_ASN1_FUNCTIONS(CatalogAuthAttr)
ASN1_SEQUENCE(CatalogAuthAttr) = {
ASN1_SIMPLE(CatalogAuthAttr, type, ASN1_OBJECT),
ASN1_OPT(CatalogAuthAttr, contents, ASN1_ANY)
} ASN1_SEQUENCE_END(CatalogAuthAttr)
IMPLEMENT_ASN1_FUNCTIONS(CatalogAuthAttr)
typedef struct {
ASN1_OCTET_STRING *digest;
STACK_OF(CatalogAuthAttr) *attributes;
} CatalogInfo;
DEFINE_STACK_OF(CatalogInfo)
DECLARE_ASN1_FUNCTIONS(CatalogInfo)
ASN1_SEQUENCE(CatalogInfo) = {
ASN1_SIMPLE(CatalogInfo, digest, ASN1_OCTET_STRING),
ASN1_SET_OF(CatalogInfo, attributes, CatalogAuthAttr)
} ASN1_SEQUENCE_END(CatalogInfo)
IMPLEMENT_ASN1_FUNCTIONS(CatalogInfo)
typedef struct {
/* 1.3.6.1.4.1.311.12.1.1 szOID_CATALOG_LIST */
SpcAttributeTypeAndOptionalValue *type;
ASN1_OCTET_STRING *identifier;
ASN1_UTCTIME *time;
/* 1.3.6.1.4.1.311.12.1.2 CatalogVersion = 1
* 1.3.6.1.4.1.311.12.1.3 CatalogVersion = 2 */
SpcAttributeTypeAndOptionalValue *version;
STACK_OF(CatalogInfo) *header_attributes;
/* 1.3.6.1.4.1.311.12.2.1 CAT_NAMEVALUE_OBJID */
ASN1_TYPE *filename;
} MsCtlContent;
DECLARE_ASN1_FUNCTIONS(MsCtlContent)
ASN1_SEQUENCE(MsCtlContent) = {
ASN1_SIMPLE(MsCtlContent, type, SpcAttributeTypeAndOptionalValue),
ASN1_SIMPLE(MsCtlContent, identifier, ASN1_OCTET_STRING),
ASN1_SIMPLE(MsCtlContent, time, ASN1_UTCTIME),
ASN1_SIMPLE(MsCtlContent, version, SpcAttributeTypeAndOptionalValue),
ASN1_SEQUENCE_OF(MsCtlContent, header_attributes, CatalogInfo),
ASN1_OPT(MsCtlContent, filename, ASN1_ANY)
} ASN1_SEQUENCE_END(MsCtlContent)
IMPLEMENT_ASN1_FUNCTIONS(MsCtlContent)
typedef struct {
ASN1_BIT_STRING *flags;
SpcLink *file;
} SpcPeImageData;
DECLARE_ASN1_FUNCTIONS(SpcPeImageData)
ASN1_SEQUENCE(SpcPeImageData) = {
ASN1_SIMPLE(SpcPeImageData, flags, ASN1_BIT_STRING),
ASN1_EXP_OPT(SpcPeImageData, file, SpcLink, 0)
} ASN1_SEQUENCE_END(SpcPeImageData)
IMPLEMENT_ASN1_FUNCTIONS(SpcPeImageData)
typedef struct {
ASN1_INTEGER *a;
ASN1_OCTET_STRING *string;
ASN1_INTEGER *b;
ASN1_INTEGER *c;
ASN1_INTEGER *d;
ASN1_INTEGER *e;
ASN1_INTEGER *f;
} SpcSipInfo;
DECLARE_ASN1_FUNCTIONS(SpcSipInfo)
ASN1_SEQUENCE(SpcSipInfo) = {
ASN1_SIMPLE(SpcSipInfo, a, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, string, ASN1_OCTET_STRING),
ASN1_SIMPLE(SpcSipInfo, b, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, c, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, d, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, e, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, f, ASN1_INTEGER),
} ASN1_SEQUENCE_END(SpcSipInfo)
IMPLEMENT_ASN1_FUNCTIONS(SpcSipInfo)
typedef struct {
AlgorithmIdentifier *digestAlgorithm;
ASN1_OCTET_STRING *digest;
} MessageImprint;
DECLARE_ASN1_FUNCTIONS(MessageImprint)
ASN1_SEQUENCE(MessageImprint) = {
ASN1_SIMPLE(MessageImprint, digestAlgorithm, AlgorithmIdentifier),
ASN1_SIMPLE(MessageImprint, digest, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(MessageImprint)
IMPLEMENT_ASN1_FUNCTIONS(MessageImprint)
#ifdef ENABLE_CURL
typedef struct {
ASN1_OBJECT *type;
ASN1_OCTET_STRING *signature;
} TimeStampRequestBlob;
DECLARE_ASN1_FUNCTIONS(TimeStampRequestBlob)
ASN1_SEQUENCE(TimeStampRequestBlob) = {
ASN1_SIMPLE(TimeStampRequestBlob, type, ASN1_OBJECT),
ASN1_EXP_OPT(TimeStampRequestBlob, signature, ASN1_OCTET_STRING, 0)
} ASN1_SEQUENCE_END(TimeStampRequestBlob)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampRequestBlob)
typedef struct {
ASN1_OBJECT *type;
TimeStampRequestBlob *blob;
} TimeStampRequest;
DECLARE_ASN1_FUNCTIONS(TimeStampRequest)
ASN1_SEQUENCE(TimeStampRequest) = {
ASN1_SIMPLE(TimeStampRequest, type, ASN1_OBJECT),
ASN1_SIMPLE(TimeStampRequest, blob, TimeStampRequestBlob)
} ASN1_SEQUENCE_END(TimeStampRequest)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampRequest)
/* RFC3161 Time stamping */
typedef struct {
ASN1_INTEGER *status;
STACK_OF(ASN1_UTF8STRING) *statusString;
ASN1_BIT_STRING *failInfo;
} PKIStatusInfo;
DECLARE_ASN1_FUNCTIONS(PKIStatusInfo)
ASN1_SEQUENCE(PKIStatusInfo) = {
ASN1_SIMPLE(PKIStatusInfo, status, ASN1_INTEGER),
ASN1_SEQUENCE_OF_OPT(PKIStatusInfo, statusString, ASN1_UTF8STRING),
ASN1_OPT(PKIStatusInfo, failInfo, ASN1_BIT_STRING)
} ASN1_SEQUENCE_END(PKIStatusInfo)
IMPLEMENT_ASN1_FUNCTIONS(PKIStatusInfo)
typedef struct {
PKIStatusInfo *status;
PKCS7 *token;
} TimeStampResp;
DECLARE_ASN1_FUNCTIONS(TimeStampResp)
ASN1_SEQUENCE(TimeStampResp) = {
ASN1_SIMPLE(TimeStampResp, status, PKIStatusInfo),
ASN1_OPT(TimeStampResp, token, PKCS7)
} ASN1_SEQUENCE_END(TimeStampResp)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampResp)
typedef struct {
ASN1_INTEGER *version;
MessageImprint *messageImprint;
ASN1_OBJECT *reqPolicy;
ASN1_INTEGER *nonce;
ASN1_BOOLEAN *certReq;
STACK_OF(X509_EXTENSION) *extensions;
} TimeStampReq;
DECLARE_ASN1_FUNCTIONS(TimeStampReq)
ASN1_SEQUENCE(TimeStampReq) = {
ASN1_SIMPLE(TimeStampReq, version, ASN1_INTEGER),
ASN1_SIMPLE(TimeStampReq, messageImprint, MessageImprint),
ASN1_OPT (TimeStampReq, reqPolicy, ASN1_OBJECT),
ASN1_OPT (TimeStampReq, nonce, ASN1_INTEGER),
ASN1_SIMPLE(TimeStampReq, certReq, ASN1_BOOLEAN),
ASN1_IMP_SEQUENCE_OF_OPT(TimeStampReq, extensions, X509_EXTENSION, 0)
} ASN1_SEQUENCE_END(TimeStampReq)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampReq)
#endif /* ENABLE_CURL */
typedef struct {
ASN1_INTEGER *seconds;
ASN1_INTEGER *millis;
ASN1_INTEGER *micros;
} TimeStampAccuracy;
DECLARE_ASN1_FUNCTIONS(TimeStampAccuracy)
ASN1_SEQUENCE(TimeStampAccuracy) = {
ASN1_OPT(TimeStampAccuracy, seconds, ASN1_INTEGER),
ASN1_IMP_OPT(TimeStampAccuracy, millis, ASN1_INTEGER, 0),
ASN1_IMP_OPT(TimeStampAccuracy, micros, ASN1_INTEGER, 1)
} ASN1_SEQUENCE_END(TimeStampAccuracy)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampAccuracy)
typedef struct {
ASN1_INTEGER *version;
ASN1_OBJECT *policy_id;
MessageImprint *messageImprint;
ASN1_INTEGER *serial;
ASN1_GENERALIZEDTIME *time;
TimeStampAccuracy *accuracy;
ASN1_BOOLEAN ordering;
ASN1_INTEGER *nonce;
GENERAL_NAME *tsa;
STACK_OF(X509_EXTENSION) *extensions;
} TimeStampToken;
DECLARE_ASN1_FUNCTIONS(TimeStampToken)
ASN1_SEQUENCE(TimeStampToken) = {
ASN1_SIMPLE(TimeStampToken, version, ASN1_INTEGER),
ASN1_SIMPLE(TimeStampToken, policy_id, ASN1_OBJECT),
ASN1_SIMPLE(TimeStampToken, messageImprint, MessageImprint),
ASN1_SIMPLE(TimeStampToken, serial, ASN1_INTEGER),
ASN1_SIMPLE(TimeStampToken, time, ASN1_GENERALIZEDTIME),
ASN1_OPT(TimeStampToken, accuracy, TimeStampAccuracy),
ASN1_OPT(TimeStampToken, ordering, ASN1_FBOOLEAN),
ASN1_OPT(TimeStampToken, nonce, ASN1_INTEGER),
ASN1_EXP_OPT(TimeStampToken, tsa, GENERAL_NAME, 0),
ASN1_IMP_SEQUENCE_OF_OPT(TimeStampToken, extensions, X509_EXTENSION, 1)
} ASN1_SEQUENCE_END(TimeStampToken)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampToken)
/*
* $ echo -n 3006030200013000 | xxd -r -p | openssl asn1parse -i -inform der
* 0:d=0 hl=2 l= 6 cons: SEQUENCE
* 2:d=1 hl=2 l= 2 prim: BIT STRING
* 6:d=1 hl=2 l= 0 cons: SEQUENCE
*/
const u_char java_attrs_low[] = {
0x30, 0x06, 0x03, 0x02, 0x00, 0x01, 0x30, 0x00
};
/*
* $ echo -n 300c060a2b060104018237020115 | xxd -r -p | openssl asn1parse -i -inform der
* 0:d=0 hl=2 l= 12 cons: SEQUENCE
* 2:d=1 hl=2 l= 10 prim: OBJECT :Microsoft Individual Code Signing
*/
const u_char purpose_ind[] = {
0x30, 0x0c, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04,
0x01, 0x82, 0x37, 0x02, 0x01, 0x15
};
/*
* $ echo -n 300c060a2b060104018237020116 | xxd -r -p | openssl asn1parse -i -inform der
* 0:d=0 hl=2 l= 12 cons: SEQUENCE
* 2:d=1 hl=2 l= 10 prim: OBJECT :Microsoft Commercial Code Signing
*/
const u_char purpose_comm[] = {
0x30, 0x0c, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04,
0x01, 0x82, 0x37, 0x02, 0x01, 0x16
};
const u_char classid_page_hash[] = {
0xa6, 0xb5, 0x86, 0xd5, 0xb4, 0xa1, 0x24, 0x66,
0xae, 0x05, 0xa2, 0x17, 0xda, 0x8e, 0x60, 0xd6
};
static SpcSpOpusInfo *createOpus(const char *desc, const char *url)
{
SpcSpOpusInfo *info = SpcSpOpusInfo_new();
if (desc) {
info->programName = SpcString_new();
info->programName->type = 1;
info->programName->value.ascii = ASN1_IA5STRING_new();
ASN1_STRING_set((ASN1_STRING *)info->programName->value.ascii,
desc, (int)strlen(desc));
}
if (url) {
info->moreInfo = SpcLink_new();
info->moreInfo->type = 0;
info->moreInfo->value.url = ASN1_IA5STRING_new();
ASN1_STRING_set((ASN1_STRING *)info->moreInfo->value.url,
url, (int)strlen(url));
}
return info;
}
/*
* Return the header length (tag and length octets) of the ASN.1 type
*/
static int asn1_simple_hdr_len(const u_char *p, int len)
{
if (len <= 2 || p[0] > 0x31)
return 0;
return (p[1]&0x80) ? (2 + (p[1]&0x7f)) : 2;
}
/*
* Add a custom, non-trusted time to the PKCS7 structure to prevent OpenSSL
* adding the _current_ time. This allows to create a deterministic signature
* when no trusted timestamp server was specified, making osslsigncode
* behaviour closer to signtool.exe (which doesn't include any non-trusted
* time in this case.)
*/
static int pkcs7_add_signing_time(PKCS7_SIGNER_INFO *si, time_t time)
{
if (time == INVALID_TIME) /* -time option was not specified */
return 1; /* success */
return PKCS7_add_signed_attribute(si,
NID_pkcs9_signingTime, V_ASN1_UTCTIME,
ASN1_TIME_adj(NULL, time, 0, 0));
}
static void tohex(const u_char *v, char *b, int len)
{
int i, j = 0;
for(i=0; i<len; i++) {
#ifdef WIN32
int size = EVP_MAX_MD_SIZE*2+1;
j += sprintf_s(b+j, size-j, "%02X", v[i]);
#else
j += sprintf(b+j, "%02X", v[i]);
#endif /* WIN32 */
}
}
static void print_hash(const char *descript1, const char *descript2, const u_char *hashbuf, int length)
{
char hexbuf[EVP_MAX_MD_SIZE*2+1];
if (length > EVP_MAX_MD_SIZE) {
printf("Invalid message digest size\n");
return;
}
tohex(hashbuf, hexbuf, length);
printf("%s: %s %s\n", descript1, hexbuf, descript2);
}
static int compare_digests(u_char *mdbuf, u_char *cmdbuf, int mdtype)
{
int mdlen = EVP_MD_size(EVP_get_digestbynid(mdtype));
int mdok = !memcmp(mdbuf, cmdbuf, (size_t)mdlen);
printf("Message digest algorithm : %s\n", OBJ_nid2sn(mdtype));
print_hash("Current message digest ", "", mdbuf, mdlen);
print_hash("Calculated message digest ", mdok ? "\n" : " MISMATCH!!!\n", cmdbuf, mdlen);
return mdok;
}
static int is_content_type(PKCS7 *p7, const char *objid)
{
ASN1_OBJECT *indir_objid;
int retval;
indir_objid = OBJ_txt2obj(objid, 1);
retval = p7 && PKCS7_type_is_signed(p7) &&
!OBJ_cmp(p7->d.sign->contents->type, indir_objid) &&
(p7->d.sign->contents->d.other->type == V_ASN1_SEQUENCE ||
p7->d.sign->contents->d.other->type == V_ASN1_OCTET_STRING);
ASN1_OBJECT_free(indir_objid);
return retval;
}
#ifdef ENABLE_CURL
static int blob_has_nl = 0;
/*
* Callback for writing received data
*/
static int curl_write(void *ptr, size_t sz, size_t nmemb, void *stream)
{
if (sz*nmemb > 0 && !blob_has_nl) {
if (memchr(ptr, '\n', sz*nmemb))
blob_has_nl = 1;
}
return BIO_write((BIO*)stream, ptr, (int)(sz*nmemb));
}
static void print_timestamp_error(const char *url, long http_code)
{
if (http_code != -1) {
printf("Failed to convert timestamp reply from %s; "
"HTTP status %ld\n", url, http_code);
} else {
printf("Failed to convert timestamp reply from %s; "
"no HTTP status available", url);
}
ERR_print_errors_fp(stdout);
}
/*
A timestamp request looks like this:
POST <someurl> HTTP/1.1
Content-Type: application/octet-stream
Content-Length: ...
Accept: application/octet-stream
User-Agent: Transport
Host: ...
Cache-Control: no-cache
<base64encoded blob>
.. and the blob has the following ASN1 structure:
0:d=0 hl=4 l= 291 cons: SEQUENCE
4:d=1 hl=2 l= 10 prim: OBJECT :1.3.6.1.4.1.311.3.2.1
16:d=1 hl=4 l= 275 cons: SEQUENCE
20:d=2 hl=2 l= 9 prim: OBJECT :pkcs7-data
31:d=2 hl=4 l= 260 cons: cont [ 0 ]
35:d=3 hl=4 l= 256 prim: OCTET STRING
<signature>
.. and it returns a base64 encoded PKCS#7 structure.
*/
/*
* Encode RFC 3161 timestamp request and write it into BIO
*/
static BIO *encode_rfc3161_request(PKCS7 *sig, const EVP_MD *md)
{
PKCS7_SIGNER_INFO *si;
u_char mdbuf[EVP_MAX_MD_SIZE];
EVP_MD_CTX *mdctx;
TimeStampReq *req;
BIO *bout;
u_char *p;
int len;
STACK_OF(PKCS7_SIGNER_INFO) *signer_info = PKCS7_get_signer_info(sig);
if (!signer_info)
return NULL; /* FAILED */
si = sk_PKCS7_SIGNER_INFO_value(signer_info, 0);
if (!si)
return NULL; /* FAILED */
mdctx = EVP_MD_CTX_new();
if (!EVP_DigestInit(mdctx, md)) {
EVP_MD_CTX_free(mdctx);
printf("Unable to set up the digest context\n");
return NULL; /* FAILED */
}
EVP_DigestUpdate(mdctx, si->enc_digest->data, (size_t)si->enc_digest->length);
EVP_DigestFinal(mdctx, mdbuf, NULL);
EVP_MD_CTX_free(mdctx);
req = TimeStampReq_new();
ASN1_INTEGER_set(req->version, 1);
req->messageImprint->digestAlgorithm->algorithm = OBJ_nid2obj(EVP_MD_nid(md));
req->messageImprint->digestAlgorithm->parameters = ASN1_TYPE_new();
req->messageImprint->digestAlgorithm->parameters->type = V_ASN1_NULL;
ASN1_OCTET_STRING_set(req->messageImprint->digest, mdbuf, EVP_MD_size(md));
req->certReq = (void*)0x1;
len = i2d_TimeStampReq(req, NULL);
p = OPENSSL_malloc((size_t)len);
len = i2d_TimeStampReq(req, &p);
p -= len;
TimeStampReq_free(req);
bout = BIO_new(BIO_s_mem());
BIO_write(bout, p, len);
OPENSSL_free(p);
(void)BIO_flush(bout);
return bout;
}
/*
* Encode authenticode timestamp request and write it into BIO
*/
static BIO *encode_authenticode_request(PKCS7 *sig)
{
PKCS7_SIGNER_INFO *si;
TimeStampRequest *req;
BIO *bout, *b64;
u_char *p;
int len;
STACK_OF(PKCS7_SIGNER_INFO) *signer_info = PKCS7_get_signer_info(sig);
if (!signer_info)
return 0; /* FAILED */
si = sk_PKCS7_SIGNER_INFO_value(signer_info, 0);
if (!si)
return 0; /* FAILED */
req = TimeStampRequest_new();
req->type = OBJ_txt2obj(SPC_TIME_STAMP_REQUEST_OBJID, 1);
req->blob->type = OBJ_nid2obj(NID_pkcs7_data);
req->blob->signature = si->enc_digest;
len = i2d_TimeStampRequest(req, NULL);
p = OPENSSL_malloc((size_t)len);
len = i2d_TimeStampRequest(req, &p);
p -= len;
req->blob->signature = NULL;
TimeStampRequest_free(req);
bout = BIO_new(BIO_s_mem());
b64 = BIO_new(BIO_f_base64());
bout = BIO_push(b64, bout);
BIO_write(bout, p, len);
OPENSSL_free(p);
(void)BIO_flush(bout);
return bout;
}
/*
* Decode a curl response from BIO.
* If successful the RFC 3161 timestamp will be written into
* the PKCS7 SignerInfo structure as an unauthorized attribute - cont[1].
*/
static CURLcode decode_rfc3161_response(PKCS7 *sig, BIO *bin, int verbose)
{
PKCS7_SIGNER_INFO *si;
STACK_OF(X509_ATTRIBUTE) *attrs;
TimeStampResp *reply;
u_char *p;
int i, len;
STACK_OF(PKCS7_SIGNER_INFO) *signer_info = PKCS7_get_signer_info(sig);
if (!signer_info)
return 1; /* FAILED */
si = sk_PKCS7_SIGNER_INFO_value(signer_info, 0);
if (!si)
return 1; /* FAILED */
reply = ASN1_item_d2i_bio(ASN1_ITEM_rptr(TimeStampResp), bin, NULL);
BIO_free_all(bin);
if (!reply || !reply->status)
return 1; /* FAILED */
if (ASN1_INTEGER_get(reply->status->status) != 0) {
if (verbose) {
printf("Timestamping failed: status %ld\n", ASN1_INTEGER_get(reply->status->status));
for (i = 0; i < sk_ASN1_UTF8STRING_num(reply->status->statusString); i++) {
ASN1_UTF8STRING *status = sk_ASN1_UTF8STRING_value(reply->status->statusString, i);
printf("%s\n", ASN1_STRING_get0_data(status));
}
}
TimeStampResp_free(reply);
return 1; /* FAILED */
}
if (((len = i2d_PKCS7(reply->token, NULL)) <= 0) || (p = OPENSSL_malloc((size_t)len)) == NULL) {
if (verbose) {
printf("Failed to convert pkcs7: %d\n", len);
ERR_print_errors_fp(stdout);
}
TimeStampResp_free(reply);
return 1; /* FAILED */
}
len = i2d_PKCS7(reply->token, &p);
p -= len;
TimeStampResp_free(reply);
attrs = sk_X509_ATTRIBUTE_new_null();
attrs = X509at_add1_attr_by_txt(&attrs, SPC_RFC3161_OBJID, V_ASN1_SET, p, len);
OPENSSL_free(p);
PKCS7_set_attributes(si, attrs);
sk_X509_ATTRIBUTE_pop_free(attrs, X509_ATTRIBUTE_free);
return 0; /* OK */
}
/*
* Decode a curl response from BIO.
* If successful the authenticode timestamp will be written into
* the PKCS7 SignerInfo structure as an unauthorized attribute - cont[1].
*/
static CURLcode decode_authenticode_response(PKCS7 *sig, BIO *bin, int verbose)
{
PKCS7 *p7;
PKCS7_SIGNER_INFO *info, *si;