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1196 lines
43 KiB
1196 lines
43 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1996 - 1999
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//
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// File: signer.cpp
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//
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// Contents: Microsoft Internet Security Signing API
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//
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// History: June-25-97 xiaohs created
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//
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//--------------------------------------------------------------------------
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#include "global.hxx"
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#include <stdio.h>
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//--------------------------------------------------------------------------
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//
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// InternalSign:
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// The signing routine called by signer.dll internally. This is the
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// function that actually does the job.
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//
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//--------------------------------------------------------------------------
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HRESULT WINAPI
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InternalSign(IN DWORD dwEncodingType, // Encoding type
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IN HCRYPTPROV hCryptProv, // CAPI provider, opened for signing private key
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IN DWORD dwKeySpec, // Type of signing key, AT_SIGNATURE or AT_EXCHANGE
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IN LPCSTR pszAlgorithmOid, // Algorithm id used to create digest
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IN LPSIP_SUBJECTINFO pSipInfo, // SIP information
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IN DWORD *pdwIndex, // signer index
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IN PCCERT_CONTEXT psSigningContext, // Cert context to the signing certificate
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IN HCERTSTORE hSpcStore, // The credentials to use in the signing
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IN LPCWSTR pwszOpusName, // Optional, the name of the program to appear in
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IN LPCWSTR pwszOpusInfo, // Optional, the unparsed name of a link to more
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IN BOOL fIncludeCerts, // add the certificates to the signature
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IN BOOL fCommercial, // commerical signing
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IN BOOL fIndividual, // individual signing
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IN BOOL fAuthcode, // whether use fCommercial as an attributes
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IN PCRYPT_ATTRIBUTES psAuthenticated, // Optional, authenticated attributes added to signature
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IN PCRYPT_ATTRIBUTES psUnauthenticated, // Optional, unauthenticated attributes added to signature
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OUT PBYTE* ppbDigest, //Optional: return the Digest of the file
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OUT DWORD* pcbDigest, //Optional: return the size of the digest
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OUT PBYTE* ppbMessage, //Optional: return the encoded signed message
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OUT DWORD* pcbMessage) //Optional: return the size of encoded signed message
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{
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HRESULT hr = S_OK;
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SIP_DISPATCH_INFO sSip; ZERO(sSip); // Table of sip functions
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PBYTE pbOpusAttribute = NULL; // Encoding for the opus attribute
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DWORD cbOpusAttribute = 0; // :
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PBYTE pbStatementAttribute = NULL; // Encoding for the statement attribute
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DWORD cbStatementAttribute = 0; // :
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PCRYPT_ATTRIBUTE rgpAuthAttributes = NULL;
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DWORD dwAuthAttributes = 0;
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PCRYPT_ATTRIBUTE rgpUnauthAttributes = NULL;
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DWORD dwUnauthAttributes = 0;
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PSIP_INDIRECT_DATA psIndirectData = NULL; // Indirect data structure
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DWORD dwIndirectData = 0;
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PBYTE pbIndirectBlob = NULL; // Encoding Indirect blob
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DWORD cbIndirectBlob = 0; // :
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PBYTE pbGetBlob=NULL;
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DWORD cbGetBlob=0;
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CRYPT_DATA_BLOB PKCS7Blob;
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HCERTSTORE hPKCS7CertStore=NULL;
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DWORD dwPKCS7Certs=0;
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PCERT_BLOB rgPKCS7Certs=NULL;
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PBYTE pbEncodedSignMsg = NULL; // Encoding for the statement attribute
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DWORD cbEncodedSignMsg = 0; // :
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HCRYPTMSG hMsg = NULL;
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CMSG_SIGNER_ENCODE_INFO sSignerInfo;
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CMSG_SIGNED_ENCODE_INFO sSignedInfo;
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PCERT_BLOB rgpCryptMsgCertificates = NULL;
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DWORD dwCryptMsgCertificates = 0;
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PCRL_BLOB rgpCryptMsgCrls = NULL;
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DWORD dwCryptMsgCrls = 0;
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PBYTE pbSignerData = NULL;
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DWORD cbSignerData = 0;
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BOOL fSignCommercial=FALSE;
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BOOL fCTLFile =FALSE;
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PCTL_CONTEXT pCTLContext=NULL;
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GUID CTLGuid=CRYPT_SUBJTYPE_CTL_IMAGE;
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GUID CATGuid=CRYPT_SUBJTYPE_CATALOG_IMAGE;
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DWORD dwCertIndex=0;
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BOOL fFound=FALSE;
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BOOL fNeedStatementType=FALSE;
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PKITRY {
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//init memory
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ZeroMemory(&sSignerInfo, sizeof(CMSG_SIGNER_ENCODE_INFO));
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ZeroMemory(&sSignedInfo, sizeof(CMSG_SIGNED_ENCODE_INFO));
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// Load up the sip functions.
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if(!CryptSIPLoad(pSipInfo->pgSubjectType, // GUID for the requried sip
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0, // Reserved
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&sSip)) // Table of functions
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PKITHROW(SignError());
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// Set up the attributes (AUTHENTICODE Specific, replace with your attributes)
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// Encode the opus information up into an attribute
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if(fAuthcode)
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{
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hr = CreateOpusInfo(pwszOpusName,
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pwszOpusInfo,
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&pbOpusAttribute,
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&cbOpusAttribute);
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if(hr != S_OK) PKITHROW(hr);
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//Check to see if we need to put the statement type attributes
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if(NeedStatementTypeAttr(psSigningContext, fCommercial, fIndividual))
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{
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fNeedStatementType=TRUE;
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// Check signing certificate to see if its signing cabablity complies
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//with the request
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if(S_OK!=(hr=CheckCommercial(psSigningContext,fCommercial, fIndividual,
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&fSignCommercial)))
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PKITHROW(hr);
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if(S_OK !=(hr = CreateStatementType(fSignCommercial,
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&pbStatementAttribute,
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&cbStatementAttribute)))
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PKITHROW(hr);
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}
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else
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fNeedStatementType=FALSE;
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}
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// Create Authenticode attributes and append additional authenticated attributes.
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// Allocate and add StatementType and SpOpusInfo (add room for one blob per attribute, which we need)
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DWORD dwAttrSize = 0;
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//get the number of authenticated attributes
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if(fAuthcode)
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{
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if(fNeedStatementType)
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dwAuthAttributes = 2; // StatementType + opus
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else
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dwAuthAttributes= 1;
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}
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else
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dwAuthAttributes= 0;
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if(psAuthenticated)
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dwAuthAttributes += psAuthenticated->cAttr;
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dwAttrSize = sizeof(CRYPT_ATTRIBUTE) * dwAuthAttributes + 2 * sizeof(CRYPT_ATTR_BLOB);
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rgpAuthAttributes = (PCRYPT_ATTRIBUTE) malloc(dwAttrSize);
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if(!rgpAuthAttributes) PKITHROW(E_OUTOFMEMORY);
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ZeroMemory(rgpAuthAttributes, dwAttrSize);
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PCRYPT_ATTR_BLOB pValue = (PCRYPT_ATTR_BLOB) (rgpAuthAttributes + dwAuthAttributes);
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//the start of the authenticated attributes
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dwAttrSize=0;
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//add the authenticode specific attributes
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if(fAuthcode)
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{
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// Update SpOpusInfo
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rgpAuthAttributes[dwAttrSize].pszObjId = SPC_SP_OPUS_INFO_OBJID;
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rgpAuthAttributes[dwAttrSize].cValue = 1;
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rgpAuthAttributes[dwAttrSize].rgValue = &pValue[dwAttrSize];
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pValue[dwAttrSize].pbData = pbOpusAttribute;
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pValue[dwAttrSize].cbData = cbOpusAttribute;
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dwAttrSize++;
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// Update StatementType
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if(fNeedStatementType)
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{
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rgpAuthAttributes[dwAttrSize].pszObjId = SPC_STATEMENT_TYPE_OBJID;
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rgpAuthAttributes[dwAttrSize].cValue = 1;
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rgpAuthAttributes[dwAttrSize].rgValue = &pValue[dwAttrSize];
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pValue[dwAttrSize].pbData = pbStatementAttribute;
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pValue[dwAttrSize].cbData = cbStatementAttribute;
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dwAttrSize++;
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}
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}
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if(psAuthenticated) {
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for(DWORD i = dwAttrSize, ii = 0; ii < psAuthenticated->cAttr; ii++, i++)
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rgpAuthAttributes[i] = psAuthenticated->rgAttr[ii];
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}
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// Get the Unauthenticated attributes
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if(psUnauthenticated) {
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rgpUnauthAttributes = psUnauthenticated->rgAttr;
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dwUnauthAttributes = psUnauthenticated->cAttr;
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}
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//check to see if the file is either a catalog file or a CTL file
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if((CTLGuid == (*(pSipInfo->pgSubjectType))) ||
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(CATGuid == (*(pSipInfo->pgSubjectType)))
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)
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fCTLFile=TRUE;
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else
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{
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// Get the indirect data struct from the SIP
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if(!sSip.pfCreate(pSipInfo,
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&dwIndirectData,
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psIndirectData))
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PKITHROW(SignError());
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psIndirectData = (PSIP_INDIRECT_DATA) malloc(dwIndirectData);
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if(!psIndirectData)
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PKITHROW(E_OUTOFMEMORY);
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if(!sSip.pfCreate(pSipInfo,
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&dwIndirectData,
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psIndirectData))
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PKITHROW(SignError());
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// Encode the indirect data
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CryptEncodeObject(dwEncodingType,
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SPC_INDIRECT_DATA_CONTENT_STRUCT,
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psIndirectData,
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pbIndirectBlob,
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&cbIndirectBlob);
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if (cbIndirectBlob == 0)
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PKITHROW(SignError());
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pbIndirectBlob = (PBYTE) malloc(cbIndirectBlob);
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if(!pbIndirectBlob)
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PKITHROW(E_OUTOFMEMORY);
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if (!CryptEncodeObject(dwEncodingType,
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SPC_INDIRECT_DATA_CONTENT_STRUCT,
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psIndirectData,
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pbIndirectBlob,
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&cbIndirectBlob))
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PKITHROW(SignError());
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}
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// Encode the signed message
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// Setup the signing info
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ZeroMemory(&sSignerInfo, sizeof(CMSG_SIGNER_ENCODE_INFO));
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sSignerInfo.cbSize = sizeof(CMSG_SIGNER_ENCODE_INFO);
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sSignerInfo.pCertInfo = psSigningContext->pCertInfo;
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sSignerInfo.hCryptProv = hCryptProv;
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sSignerInfo.dwKeySpec = dwKeySpec;
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sSignerInfo.HashAlgorithm.pszObjId = (char*) pszAlgorithmOid;
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sSignerInfo.cAuthAttr = dwAuthAttributes;
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sSignerInfo.rgAuthAttr = rgpAuthAttributes;
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sSignerInfo.cUnauthAttr = dwUnauthAttributes;
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sSignerInfo.rgUnauthAttr = rgpUnauthAttributes;
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// Setup the signing structures
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ZeroMemory(&sSignedInfo, sizeof(CMSG_SIGNED_ENCODE_INFO));
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sSignedInfo.cbSize = sizeof(CMSG_SIGNED_ENCODE_INFO);
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sSignedInfo.cSigners = 1;
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sSignedInfo.rgSigners = &sSignerInfo;
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// if there are certificates to add change them to the
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// form required by CryptMsg... functions
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// load up the certificates into a vector
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// Count the number of certs in the store
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if(fIncludeCerts && hSpcStore) {
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PCCERT_CONTEXT pCert = NULL;
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while ((pCert = CertEnumCertificatesInStore(hSpcStore, pCert)))
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dwCryptMsgCertificates++;
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// Get the encoded blobs of the CERTS
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if (dwCryptMsgCertificates > 0) {
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rgpCryptMsgCertificates = (PCERT_BLOB) malloc(sizeof(CERT_BLOB) * dwCryptMsgCertificates);
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if(!rgpCryptMsgCertificates)
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PKITHROW(E_OUTOFMEMORY);
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ZeroMemory(rgpCryptMsgCertificates, sizeof(CERT_BLOB) * dwCryptMsgCertificates);
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PCERT_BLOB pCertPtr = rgpCryptMsgCertificates;
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pCert = NULL;
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DWORD c = 0;
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while ((pCert = CertEnumCertificatesInStore(hSpcStore, pCert)) && c < dwCryptMsgCertificates) {
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pCertPtr->pbData = pCert->pbCertEncoded;
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pCertPtr->cbData = pCert->cbCertEncoded;
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c++; pCertPtr++;
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}
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}
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sSignedInfo.cCertEncoded = dwCryptMsgCertificates;
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sSignedInfo.rgCertEncoded = rgpCryptMsgCertificates;
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rgpCryptMsgCertificates=NULL;
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// Get the encoded blobs of the CRLS
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DWORD crlFlag = 0;
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PCCRL_CONTEXT pCrl = NULL;
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while ((pCrl = CertGetCRLFromStore(hSpcStore, NULL, pCrl, &crlFlag)))
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dwCryptMsgCrls++;
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if (dwCryptMsgCrls > 0) {
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rgpCryptMsgCrls = (PCRL_BLOB) malloc(sizeof(CRL_BLOB) * dwCryptMsgCrls);
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if(!rgpCryptMsgCrls) PKITHROW(E_OUTOFMEMORY);
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ZeroMemory(rgpCryptMsgCrls, sizeof(CRL_BLOB) * dwCryptMsgCrls);
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PCRL_BLOB pCrlPtr = rgpCryptMsgCrls;
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pCrl = NULL;
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DWORD c = 0;
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while ((pCrl = CertGetCRLFromStore(hSpcStore, NULL, pCrl, &crlFlag)) && c < dwCryptMsgCrls) {
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pCrlPtr->pbData = pCrl->pbCrlEncoded;
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pCrlPtr->cbData = pCrl->cbCrlEncoded;
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c++; pCrlPtr++;
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}
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}
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sSignedInfo.cCrlEncoded = dwCryptMsgCrls;
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sSignedInfo.rgCrlEncoded = rgpCryptMsgCrls;
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rgpCryptMsgCrls=NULL;
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}
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//check to see if the subject is a CTL file. If it is, we need to preserve
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//all the certificates in the original signer Info
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if(CTLGuid == (*(pSipInfo->pgSubjectType)))
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{
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PCCERT_CONTEXT pCert = NULL;
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//call Get the get the original signer information
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sSip.pfGet(pSipInfo, &dwEncodingType, *pdwIndex, &cbGetBlob, NULL);
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if (cbGetBlob < 1)
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{
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PKITHROW(SignError());
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}
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if (!(pbGetBlob = (BYTE *)malloc(cbGetBlob)))
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{
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PKITHROW(E_OUTOFMEMORY);
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}
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if (!(sSip.pfGet(pSipInfo, &dwEncodingType, *pdwIndex, &cbGetBlob, pbGetBlob)))
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{
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PKITHROW(SignError());
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}
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//open the PKCS7 BLOB as a certificate store
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PKCS7Blob.cbData=cbGetBlob;
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PKCS7Blob.pbData=pbGetBlob;
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hPKCS7CertStore=CertOpenStore(CERT_STORE_PROV_PKCS7,
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dwEncodingType,
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NULL,
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0,
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&PKCS7Blob);
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if(!hPKCS7CertStore)
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PKITHROW(SignError());
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//enum all the certificate in the store
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while ((pCert = CertEnumCertificatesInStore(hPKCS7CertStore, pCert)))
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dwPKCS7Certs++;
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//Get the encoded blobs of the CERTS
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if (dwPKCS7Certs > 0)
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{
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VOID *pvTemp;
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pvTemp = realloc(sSignedInfo.rgCertEncoded,
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sizeof(CERT_BLOB) * (sSignedInfo.cCertEncoded+dwPKCS7Certs));
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if(!pvTemp)
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PKITHROW(E_OUTOFMEMORY)
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else
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sSignedInfo.rgCertEncoded = (PCERT_BLOB) pvTemp;
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PCERT_BLOB pCertPtr = (sSignedInfo.rgCertEncoded + sSignedInfo.cCertEncoded);
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pCert = NULL;
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DWORD c = 0;
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while ((pCert = CertEnumCertificatesInStore(hPKCS7CertStore, pCert)) && c < dwPKCS7Certs)
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{
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fFound=FALSE;
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//we need to make sure that we do not add duplicated certificates
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for(dwCertIndex=0; dwCertIndex<sSignedInfo.cCertEncoded; dwCertIndex++)
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{
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if((sSignedInfo.rgCertEncoded[dwCertIndex]).cbData==pCert->cbCertEncoded)
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{
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if(0==memcmp((sSignedInfo.rgCertEncoded[dwCertIndex]).pbData,
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pCert->pbCertEncoded, pCert->cbCertEncoded))
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{
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fFound=TRUE;
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break;
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}
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}
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}
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//we only add the certificates that do not duplicates the signer's
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//certificates
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if(FALSE==fFound)
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{
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pCertPtr->pbData = pCert->pbCertEncoded;
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pCertPtr->cbData = pCert->cbCertEncoded;
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c++; pCertPtr++;
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}
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}
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sSignedInfo.cCertEncoded += c;
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}
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}
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|
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if (fCTLFile)
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{
|
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//
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// get the signed message if we need to
|
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//
|
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if(NULL==pbGetBlob)
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{
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//
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sSip.pfGet(pSipInfo, &dwEncodingType, *pdwIndex, &cbGetBlob, NULL);
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|
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if (cbGetBlob < 1)
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{
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PKITHROW(SignError());
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}
|
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if (!(pbGetBlob = (BYTE *)malloc(cbGetBlob)))
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{
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PKITHROW(E_OUTOFMEMORY);
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}
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|
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if (!(sSip.pfGet(pSipInfo, &dwEncodingType, *pdwIndex, &cbGetBlob, pbGetBlob)))
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{
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PKITHROW(SignError());
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}
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}
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|
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//
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// extract the inner content
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//
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pCTLContext = (PCTL_CONTEXT)CertCreateCTLContext(
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PKCS_7_ASN_ENCODING | X509_ASN_ENCODING,
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pbGetBlob,
|
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cbGetBlob);
|
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|
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if (!(pCTLContext))
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{
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PKITHROW(SignError());
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}
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|
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if (!(pCTLContext->pbCtlContent))
|
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{
|
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PKITHROW(SignError());
|
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}
|
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|
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//
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// add singer info! (e.g.: sign it!)
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//
|
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cbEncodedSignMsg = 0;
|
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|
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CryptMsgSignCTL(dwEncodingType, pCTLContext->pbCtlContent, pCTLContext->cbCtlContent,
|
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&sSignedInfo, 0, NULL, &cbEncodedSignMsg);
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|
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if (cbEncodedSignMsg < 1)
|
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{
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PKITHROW(SignError());
|
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}
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|
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if (!(pbEncodedSignMsg = (BYTE *)malloc(cbEncodedSignMsg)))
|
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{
|
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PKITHROW(E_OUTOFMEMORY);
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}
|
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|
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if (!(CryptMsgSignCTL(dwEncodingType,
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pCTLContext->pbCtlContent, pCTLContext->cbCtlContent,
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&sSignedInfo, 0, pbEncodedSignMsg, &cbEncodedSignMsg)))
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{
|
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PKITHROW(SignError());
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}
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|
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CertFreeCTLContext(pCTLContext);
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pCTLContext = NULL;
|
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}
|
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else
|
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{
|
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hMsg = CryptMsgOpenToEncode(dwEncodingType,
|
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0, // dwFlags
|
|
CMSG_SIGNED,
|
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&sSignedInfo,
|
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SPC_INDIRECT_DATA_OBJID,
|
|
NULL);
|
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if(hMsg == NULL)
|
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PKITHROW(SignError());
|
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|
|
if (!CryptMsgUpdate(hMsg,
|
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pbIndirectBlob,
|
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cbIndirectBlob,
|
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TRUE)) // Final
|
|
PKITHROW(SignError());
|
|
|
|
CryptMsgGetParam(hMsg,
|
|
CMSG_CONTENT_PARAM,
|
|
0, // dwIndex
|
|
NULL, // pbSignedData
|
|
&cbEncodedSignMsg);
|
|
if (cbEncodedSignMsg == 0) PKITHROW(SignError());
|
|
|
|
pbEncodedSignMsg = (PBYTE) malloc(cbEncodedSignMsg);
|
|
if(!pbEncodedSignMsg) PKITHROW(E_OUTOFMEMORY);
|
|
|
|
if (!CryptMsgGetParam(hMsg,
|
|
CMSG_CONTENT_PARAM,
|
|
0, // dwIndex
|
|
pbEncodedSignMsg,
|
|
&cbEncodedSignMsg))
|
|
PKITHROW(SignError());
|
|
}
|
|
|
|
//put the signatures if we are dealing with anything other than the BLOB
|
|
if(pSipInfo->dwUnionChoice != MSSIP_ADDINFO_BLOB)
|
|
{
|
|
// Purge all the signatures in the subject
|
|
sSip.pfRemove(pSipInfo, *pdwIndex);
|
|
|
|
// Store the Signed Message in the sip
|
|
if(!(sSip.pfPut( pSipInfo,
|
|
dwEncodingType,
|
|
pdwIndex,
|
|
cbEncodedSignMsg,
|
|
pbEncodedSignMsg)))
|
|
{
|
|
PKITHROW(SignError());
|
|
}
|
|
}
|
|
|
|
if(ppbMessage && pcbMessage) {
|
|
*ppbMessage = pbEncodedSignMsg;
|
|
pbEncodedSignMsg = NULL;
|
|
*pcbMessage = cbEncodedSignMsg;
|
|
}
|
|
|
|
if(ppbDigest && pcbDigest) {
|
|
// Get the encrypted digest
|
|
pbSignerData = NULL;
|
|
CryptMsgGetParam(hMsg,
|
|
CMSG_ENCRYPTED_DIGEST,
|
|
0, // dwIndex
|
|
pbSignerData,
|
|
&cbSignerData);
|
|
if(cbSignerData == 0) PKITHROW(SignError());
|
|
|
|
pbSignerData = (PBYTE) malloc(cbSignerData);
|
|
if(!pbSignerData) PKITHROW(E_OUTOFMEMORY);
|
|
|
|
if(!CryptMsgGetParam(hMsg,
|
|
CMSG_ENCRYPTED_DIGEST,
|
|
0, // dwIndex
|
|
pbSignerData,
|
|
&cbSignerData))
|
|
PKITHROW(SignError());
|
|
*ppbDigest = pbSignerData;
|
|
pbSignerData = NULL;
|
|
*pcbDigest = cbSignerData;
|
|
}
|
|
}
|
|
PKICATCH(err) {
|
|
hr = err.pkiError;
|
|
} PKIEND;
|
|
|
|
if (pCTLContext)
|
|
{
|
|
CertFreeCTLContext(pCTLContext);
|
|
}
|
|
|
|
if (pbSignerData)
|
|
free(pbSignerData);
|
|
if(pbEncodedSignMsg)
|
|
free(pbEncodedSignMsg);
|
|
if(hMsg)
|
|
CryptMsgClose(hMsg);
|
|
|
|
if(sSignedInfo.rgCrlEncoded)
|
|
free(sSignedInfo.rgCrlEncoded);
|
|
|
|
if(sSignedInfo.rgCertEncoded)
|
|
free(sSignedInfo.rgCertEncoded);
|
|
|
|
if(pbIndirectBlob)
|
|
free(pbIndirectBlob);
|
|
if(pbGetBlob)
|
|
free(pbGetBlob);
|
|
if(hPKCS7CertStore)
|
|
CertCloseStore(hPKCS7CertStore,0);
|
|
if(psIndirectData)
|
|
free(psIndirectData);
|
|
if(rgpAuthAttributes)
|
|
free(rgpAuthAttributes);
|
|
if(pbStatementAttribute)
|
|
free(pbStatementAttribute);
|
|
if(pbOpusAttribute)
|
|
free(pbOpusAttribute);
|
|
return hr;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------
|
|
//
|
|
// SignerTimeStamp:
|
|
// Timestamp a file.
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
HRESULT WINAPI
|
|
SignerTimeStamp(
|
|
IN SIGNER_SUBJECT_INFO *pSubjectInfo, //Required: The subject to be timestamped
|
|
IN LPCWSTR pwszHttpTimeStamp, // Required: timestamp server HTTP address
|
|
IN PCRYPT_ATTRIBUTES psRequest, // Optional, attributes added to the timestamp
|
|
IN LPVOID pSipData // Optional: The additional data passed to sip funcitons
|
|
)
|
|
{
|
|
return SignerTimeStampEx(0,
|
|
pSubjectInfo,
|
|
pwszHttpTimeStamp,
|
|
psRequest,
|
|
pSipData,
|
|
NULL);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
//
|
|
// SignerTimeStampEx:
|
|
// Timestamp a file.
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
HRESULT WINAPI
|
|
SignerTimeStampEx(
|
|
IN DWORD dwFlags, //Reserved: Has to be set to 0.
|
|
IN SIGNER_SUBJECT_INFO *pSubjectInfo, //Required: The subject to be timestamped
|
|
IN LPCWSTR pwszHttpTimeStamp, // Required: timestamp server HTTP address
|
|
IN PCRYPT_ATTRIBUTES psRequest, // Optional, attributes added to the timestamp
|
|
IN LPVOID pSipData, // Optional: The additional data passed to sip funcitons
|
|
OUT SIGNER_CONTEXT **ppSignerContext // Optional: The signed BLOB. User has to free
|
|
// the context via SignerFreeSignerContext
|
|
)
|
|
{
|
|
HRESULT hr=E_FAIL;
|
|
DWORD dwTimeStampRequest=0;
|
|
BYTE *pbTimeStampRequest=NULL;
|
|
DWORD dwTimeStampResponse=0;
|
|
BYTE *pbTimeStampResponse=NULL;
|
|
CHttpTran cTran;
|
|
BOOL fOpen=FALSE;
|
|
DWORD err;
|
|
LPSTR szURL=NULL;
|
|
DWORD dwEncodingType=OCTET_ENCODING;
|
|
CHAR *pEncodedRequest=NULL;
|
|
DWORD dwEncodedRequest=0;
|
|
CHAR *pEncodedResponse=NULL;
|
|
DWORD dwEncodedResponse=0;
|
|
|
|
//input parameter check
|
|
if((!pwszHttpTimeStamp) ||(FALSE==CheckSigncodeSubjectInfo(pSubjectInfo)))
|
|
return E_INVALIDARG;
|
|
|
|
//request a time stamp
|
|
hr=SignerCreateTimeStampRequest(pSubjectInfo,
|
|
psRequest,
|
|
pSipData,
|
|
NULL,
|
|
&dwTimeStampRequest);
|
|
|
|
if(hr!=S_OK)
|
|
goto CLEANUP;
|
|
|
|
pbTimeStampRequest=(BYTE *)malloc(dwTimeStampRequest);
|
|
|
|
if(!pbTimeStampRequest)
|
|
{
|
|
hr=E_OUTOFMEMORY;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
|
|
hr=SignerCreateTimeStampRequest(pSubjectInfo,
|
|
psRequest,
|
|
pSipData,
|
|
pbTimeStampRequest,
|
|
&dwTimeStampRequest);
|
|
|
|
if(hr!=S_OK)
|
|
goto CLEANUP;
|
|
|
|
//conver the WSTR of URL to STR
|
|
if((hr=WSZtoSZ((LPWSTR)pwszHttpTimeStamp,&szURL))!=S_OK)
|
|
goto CLEANUP;
|
|
|
|
//base64 encode the request
|
|
if(S_OK!=(hr=BytesToBase64(pbTimeStampRequest,
|
|
dwTimeStampRequest,
|
|
&pEncodedRequest,
|
|
&dwEncodedRequest)))
|
|
goto CLEANUP;
|
|
|
|
//estalish the connection between the http site
|
|
err=cTran.Open( szURL, GTREAD|GTWRITE);
|
|
|
|
if(err!=ERROR_SUCCESS)
|
|
{
|
|
hr=E_FAIL;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
//mark that we have open the connection successful
|
|
fOpen=TRUE;
|
|
|
|
|
|
//send the request
|
|
err=cTran.Send(dwEncodingType,dwEncodedRequest,(BYTE *)pEncodedRequest);
|
|
|
|
if(err!=ERROR_SUCCESS)
|
|
{
|
|
hr=HRESULT_FROM_WIN32(ERROR_INVALID_FUNCTION);
|
|
goto CLEANUP;
|
|
}
|
|
|
|
//send the request
|
|
err=cTran.Receive(&dwEncodingType,&dwEncodedResponse,(BYTE **)&pEncodedResponse);
|
|
|
|
if(err!=ERROR_SUCCESS)
|
|
{
|
|
hr=E_FAIL;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
//make sure the encoding type is correct
|
|
// if(dwEncodingType!=OCTET_ENCODING)
|
|
// {
|
|
// hr=E_FAIL;
|
|
// goto CLEANUP;
|
|
// }
|
|
|
|
//base64 decode the response
|
|
if(S_OK != (hr=Base64ToBytes(
|
|
pEncodedResponse,
|
|
dwEncodedResponse,
|
|
&pbTimeStampResponse,
|
|
&dwTimeStampResponse)))
|
|
goto CLEANUP;
|
|
|
|
|
|
//add the timestamp response to the time
|
|
hr=SignerAddTimeStampResponseEx(0, pSubjectInfo,pbTimeStampResponse,
|
|
dwTimeStampResponse, pSipData,
|
|
ppSignerContext);
|
|
|
|
|
|
|
|
CLEANUP:
|
|
|
|
if(pEncodedRequest)
|
|
free(pEncodedRequest);
|
|
|
|
if(pbTimeStampResponse)
|
|
free(pbTimeStampResponse);
|
|
|
|
if(pbTimeStampRequest)
|
|
free(pbTimeStampRequest);
|
|
|
|
if(szURL)
|
|
free(szURL);
|
|
|
|
if(fOpen)
|
|
{
|
|
if(pEncodedResponse)
|
|
cTran.Free((BYTE *)pEncodedResponse);
|
|
|
|
cTran.Close();
|
|
}
|
|
|
|
return hr;
|
|
|
|
}
|
|
//+-----------------------------------------------------------------------
|
|
//
|
|
// SignerSign:
|
|
// Sign and/or timestamp a file.
|
|
//
|
|
//------------------------------------------------------------------------
|
|
|
|
HRESULT WINAPI
|
|
SignerSign(
|
|
IN SIGNER_SUBJECT_INFO *pSubjectInfo, //Required: The subject to be signed and/or timestamped
|
|
IN SIGNER_CERT *pSignerCert, //Required: The signing certificate to use
|
|
IN SIGNER_SIGNATURE_INFO *pSignatureInfo, //Required: The signature information during signing process
|
|
IN SIGNER_PROVIDER_INFO *pProviderInfo, //Optional: The crypto security provider to use.
|
|
// This parameter has to be set unless
|
|
// certStoreInfo is set in *pSignerCert
|
|
// and the signing certificate has provider
|
|
// information associated with it
|
|
IN LPCWSTR pwszHttpTimeStamp, //Optional: Timestamp server http address. If this parameter
|
|
// is set, the file will be timestamped.
|
|
IN PCRYPT_ATTRIBUTES psRequest, //Optional: Attributes added to Time stamp request. Ignored
|
|
// unless pwszHttpTimeStamp is set
|
|
IN LPVOID pSipData //Optional: The additional data passed to sip funcitons
|
|
)
|
|
{
|
|
|
|
return SignerSignEx(
|
|
0,
|
|
pSubjectInfo,
|
|
pSignerCert,
|
|
pSignatureInfo,
|
|
pProviderInfo,
|
|
pwszHttpTimeStamp,
|
|
psRequest,
|
|
pSipData,
|
|
NULL);
|
|
|
|
}
|
|
|
|
|
|
//+-----------------------------------------------------------------------
|
|
//
|
|
// SignerSignEx:
|
|
// Sign and/or timestamp a file.
|
|
//
|
|
//------------------------------------------------------------------------
|
|
|
|
HRESULT WINAPI
|
|
SignerSignEx(
|
|
IN DWORD dwFlags, //Reserved: Has to be set to 0.
|
|
IN SIGNER_SUBJECT_INFO *pSubjectInfo, //Required: The subject to be signed and/or timestamped
|
|
IN SIGNER_CERT *pSignerCert, //Required: The signing certificate to use
|
|
IN SIGNER_SIGNATURE_INFO *pSignatureInfo, //Required: The signature information during signing process
|
|
IN SIGNER_PROVIDER_INFO *pProviderInfo, //Optional: The crypto security provider to use.
|
|
// This parameter has to be set unless
|
|
// certStoreInfo is set in *pSignerCert
|
|
// and the signing certificate has provider
|
|
// information associated with it
|
|
IN LPCWSTR pwszHttpTimeStamp, //Optional: Timestamp server http address. If this parameter
|
|
// is set, the file will be timestamped.
|
|
IN PCRYPT_ATTRIBUTES psRequest, //Optional: Attributes added to Time stamp request. Ignored
|
|
// unless pwszHttpTimeStamp is set
|
|
IN LPVOID pSipData, //Optional: The additional data passed to sip funcitons
|
|
OUT SIGNER_CONTEXT **ppSignerContext //Optional: The signed BLOB. User has to free
|
|
// the context via SignerFreeSignerContext
|
|
)
|
|
{
|
|
|
|
HRESULT hr = S_OK;
|
|
HANDLE hFile = NULL; // File to sign
|
|
BOOL fFileOpen=FALSE;
|
|
HCERTSTORE hSpcStore = NULL; // Certificates added to signature
|
|
PCCERT_CONTEXT psSigningContext = NULL; // Cert context to the signing certificate
|
|
|
|
GUID gSubjectGuid; // The subject guid used to load the sip
|
|
SIP_SUBJECTINFO sSubjInfo; ZERO(sSubjInfo);
|
|
MS_ADDINFO_BLOB sBlob;
|
|
|
|
HCRYPTPROV hCryptProv = NULL; // Crypto provider, uses private key container
|
|
HCRYPTPROV hMSBaseProv = NULL; //This is the MS base provider for hashing purpose
|
|
LPWSTR pwszTmpContainer = NULL; // Pvk container (opened up pvk file)
|
|
LPWSTR pwszProvName=NULL;
|
|
DWORD dwProvType;
|
|
BOOL fAcquired=FALSE;
|
|
|
|
LPCWSTR pwszPvkFile = NULL;
|
|
LPCWSTR pwszKeyContainerName = NULL;
|
|
BOOL fAuthcode=FALSE;
|
|
BOOL fCertAcquire=FALSE;
|
|
|
|
//set dwKeySpec to 0. That is, we allow any key specification
|
|
//for code signing
|
|
DWORD dwKeySpec = 0;
|
|
DWORD dwEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING; // For this version we default to this.
|
|
LPCSTR pszAlgorithmOid = NULL;
|
|
WCHAR wszPublisher[40];
|
|
|
|
PBYTE pbEncodedMessage=NULL;
|
|
DWORD cbEncodedMessage=0;
|
|
|
|
|
|
//input parameter checking
|
|
if(!CheckSigncodeParam(pSubjectInfo, pSignerCert, pSignatureInfo,
|
|
pProviderInfo))
|
|
return E_INVALIDARG;
|
|
|
|
//determine if this is an authenticode specific signing
|
|
if(pSignatureInfo->dwAttrChoice==SIGNER_AUTHCODE_ATTR)
|
|
fAuthcode=TRUE;
|
|
|
|
//init
|
|
if(ppSignerContext)
|
|
*ppSignerContext=NULL;
|
|
|
|
// Acquire a context for the specified provider
|
|
|
|
// First,try to acquire the provider context based on the properties on a cert
|
|
if(pSignerCert->dwCertChoice==SIGNER_CERT_STORE)
|
|
{
|
|
if(GetCryptProvFromCert(pSignerCert->hwnd,
|
|
(pSignerCert->pCertStoreInfo)->pSigningCert,
|
|
&hCryptProv,
|
|
&dwKeySpec,
|
|
&fAcquired,
|
|
&pwszTmpContainer,
|
|
&pwszProvName,
|
|
&dwProvType))
|
|
//mark that we acquire the context via the cert's property
|
|
fCertAcquire=TRUE;
|
|
}
|
|
|
|
// If the 1st failed, try to acquire the provider context based on
|
|
//pPvkInfo
|
|
if(hCryptProv==NULL)
|
|
{
|
|
//pProviderInfo has to be set
|
|
if(!pProviderInfo)
|
|
{
|
|
hr=CRYPT_E_NO_PROVIDER;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
//decide the PVK file name or the key container name
|
|
if(pProviderInfo->dwPvkChoice == PVK_TYPE_FILE_NAME)
|
|
pwszPvkFile=pProviderInfo->pwszPvkFileName;
|
|
else
|
|
pwszKeyContainerName=pProviderInfo->pwszKeyContainer;
|
|
|
|
//load from the resource of string L"publisher"
|
|
if(0==LoadStringU(hInstance, IDS_Publisher, wszPublisher, 40))
|
|
{
|
|
hr=SignError();
|
|
goto CLEANUP;
|
|
}
|
|
|
|
//acquire the context
|
|
if(S_OK != (hr=PvkGetCryptProv(
|
|
pSignerCert->hwnd,
|
|
wszPublisher,
|
|
pProviderInfo->pwszProviderName,
|
|
pProviderInfo->dwProviderType,
|
|
pwszPvkFile,
|
|
pwszKeyContainerName,
|
|
&(pProviderInfo->dwKeySpec),
|
|
&pwszTmpContainer,
|
|
&hCryptProv)))
|
|
{
|
|
hr=CRYPT_E_NO_PROVIDER;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
//mark the hCryptProv is acquired
|
|
fAcquired=TRUE;
|
|
|
|
//mark the key spec that we used
|
|
dwKeySpec=pProviderInfo->dwKeySpec;
|
|
}
|
|
|
|
|
|
//now, acquire a MS base crypto provider for any operation other than
|
|
//signing
|
|
|
|
if(!CryptAcquireContext(&hMSBaseProv,
|
|
NULL,
|
|
MS_DEF_PROV,
|
|
PROV_RSA_FULL,
|
|
CRYPT_VERIFYCONTEXT))
|
|
{
|
|
hr=GetLastError();
|
|
goto CLEANUP;
|
|
}
|
|
|
|
|
|
|
|
//build a certificate store, which includes the signing certificate,
|
|
//and all the certs necessary in the signature
|
|
//get the signing certificate
|
|
if(S_OK != (hr = BuildCertStore(hCryptProv,
|
|
dwKeySpec,
|
|
hMSBaseProv,
|
|
dwEncodingType,
|
|
pSignerCert,
|
|
&hSpcStore,
|
|
&psSigningContext)))
|
|
goto CLEANUP;
|
|
|
|
//check the time validity of the signing certificate
|
|
if(0!=CertVerifyTimeValidity(NULL, psSigningContext->pCertInfo))
|
|
{
|
|
hr=CERT_E_EXPIRED;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
// Determine the hashing algorithm
|
|
pszAlgorithmOid = CertAlgIdToOID(pSignatureInfo->algidHash);
|
|
|
|
// Set up the sip information
|
|
sSubjInfo.hProv = hMSBaseProv;
|
|
sSubjInfo.DigestAlgorithm.pszObjId = (char*) pszAlgorithmOid;
|
|
sSubjInfo.dwEncodingType = dwEncodingType;
|
|
sSubjInfo.cbSize = sizeof(SIP_SUBJECTINFO); // Version
|
|
sSubjInfo.pClientData = pSipData;
|
|
|
|
|
|
//set up file information
|
|
if(pSubjectInfo->dwSubjectChoice==SIGNER_SUBJECT_FILE)
|
|
{
|
|
// Open up the file
|
|
if((pSubjectInfo->pSignerFileInfo->hFile)==NULL ||
|
|
(pSubjectInfo->pSignerFileInfo->hFile)==INVALID_HANDLE_VALUE)
|
|
{
|
|
if(S_OK != (hr = SignOpenFile(
|
|
pSubjectInfo->pSignerFileInfo->pwszFileName, &hFile)))
|
|
goto CLEANUP;
|
|
|
|
fFileOpen=TRUE;
|
|
}
|
|
else
|
|
hFile=pSubjectInfo->pSignerFileInfo->hFile;
|
|
|
|
// Get the subject type.
|
|
if(S_OK != (hr=SignGetFileType(hFile, pSubjectInfo->pSignerFileInfo->pwszFileName, &gSubjectGuid)))
|
|
goto CLEANUP;
|
|
|
|
|
|
sSubjInfo.pgSubjectType = (GUID*) &gSubjectGuid;
|
|
sSubjInfo.hFile = hFile;
|
|
sSubjInfo.pwsFileName = pSubjectInfo->pSignerFileInfo->pwszFileName;
|
|
}
|
|
else
|
|
{
|
|
memset(&sBlob, 0, sizeof(MS_ADDINFO_BLOB));
|
|
|
|
sSubjInfo.pgSubjectType=pSubjectInfo->pSignerBlobInfo->pGuidSubject;
|
|
sSubjInfo.pwsDisplayName=pSubjectInfo->pSignerBlobInfo->pwszDisplayName;
|
|
sSubjInfo.dwUnionChoice=MSSIP_ADDINFO_BLOB;
|
|
sSubjInfo.psBlob=&sBlob;
|
|
|
|
sBlob.cbStruct=sizeof(MS_ADDINFO_BLOB);
|
|
sBlob.cbMemObject=pSubjectInfo->pSignerBlobInfo->cbBlob;
|
|
sBlob.pbMemObject=pSubjectInfo->pSignerBlobInfo->pbBlob;
|
|
}
|
|
|
|
//now call InternalSign to do the real work
|
|
hr = InternalSign(dwEncodingType,
|
|
hCryptProv,
|
|
dwKeySpec,
|
|
pszAlgorithmOid,
|
|
&sSubjInfo,
|
|
pSubjectInfo->pdwIndex,
|
|
psSigningContext,
|
|
hSpcStore,
|
|
fAuthcode ? pSignatureInfo->pAttrAuthcode->pwszName : NULL,
|
|
fAuthcode ? pSignatureInfo->pAttrAuthcode->pwszInfo : NULL,
|
|
TRUE,
|
|
fAuthcode ? pSignatureInfo->pAttrAuthcode->fCommercial : FALSE,
|
|
fAuthcode ? pSignatureInfo->pAttrAuthcode->fIndividual : FALSE,
|
|
fAuthcode,
|
|
pSignatureInfo->psAuthenticated,
|
|
pSignatureInfo->psUnauthenticated,
|
|
NULL,
|
|
NULL,
|
|
&pbEncodedMessage,
|
|
&cbEncodedMessage);
|
|
|
|
if ((hFile) && (fFileOpen == TRUE) && !(sSubjInfo.hFile))
|
|
{
|
|
fFileOpen = FALSE; // we opened it, but, the SIP closed it!
|
|
}
|
|
|
|
if(hr != S_OK)
|
|
goto CLEANUP;
|
|
|
|
//timestamp the file if requested
|
|
if(pwszHttpTimeStamp)
|
|
{
|
|
if(S_OK != (hr =SignerTimeStampEx(0,
|
|
pSubjectInfo,pwszHttpTimeStamp,
|
|
psRequest,pSipData,
|
|
ppSignerContext)))
|
|
goto CLEANUP;
|
|
}
|
|
else
|
|
{
|
|
if(ppSignerContext)
|
|
{
|
|
//set up the context information
|
|
*ppSignerContext=(SIGNER_CONTEXT *)malloc(sizeof(SIGNER_CONTEXT));
|
|
|
|
if(NULL==(*ppSignerContext))
|
|
{
|
|
hr=E_OUTOFMEMORY;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
(*ppSignerContext)->cbSize=sizeof(SIGNER_CONTEXT);
|
|
(*ppSignerContext)->cbBlob=cbEncodedMessage;
|
|
(*ppSignerContext)->pbBlob=pbEncodedMessage;
|
|
pbEncodedMessage=NULL;
|
|
}
|
|
}
|
|
|
|
hr=S_OK;
|
|
|
|
|
|
CLEANUP:
|
|
|
|
//free the memory.
|
|
if(pbEncodedMessage)
|
|
free(pbEncodedMessage);
|
|
|
|
if(psSigningContext)
|
|
CertFreeCertificateContext(psSigningContext);
|
|
|
|
if(hSpcStore)
|
|
CertCloseStore(hSpcStore, 0);
|
|
|
|
//free the CryptProvider
|
|
if(hCryptProv)
|
|
{
|
|
if(fCertAcquire)
|
|
{
|
|
FreeCryptProvFromCert(fAcquired,
|
|
hCryptProv,
|
|
pwszProvName,
|
|
dwProvType,
|
|
pwszTmpContainer);
|
|
}
|
|
else
|
|
{
|
|
PvkFreeCryptProv(hCryptProv,
|
|
pProviderInfo? pProviderInfo->pwszProviderName : NULL,
|
|
pProviderInfo? pProviderInfo->dwProviderType : 0,
|
|
pwszTmpContainer);
|
|
}
|
|
}
|
|
|
|
if(hMSBaseProv)
|
|
{
|
|
CryptReleaseContext(hMSBaseProv, 0);
|
|
}
|
|
|
|
|
|
if(hFile && (fFileOpen==TRUE))
|
|
CloseHandle(hFile);
|
|
|
|
#if (1) //DSIE: bug 306005.
|
|
if (hr != S_OK && !HRESULT_SEVERITY(hr))
|
|
{
|
|
// Some CAPIs does not return HRESULT. They return Win API errors,
|
|
// so need to convert to HRESULT so that caller using the FAILED
|
|
// macro will catch the error.
|
|
hr = HRESULT_FROM_WIN32((DWORD) hr);
|
|
}
|
|
#endif
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
//+-----------------------------------------------------------------------
|
|
//
|
|
// SignerFreeSignerContext
|
|
//
|
|
//------------------------------------------------------------------------
|
|
HRESULT WINAPI
|
|
SignerFreeSignerContext(
|
|
IN SIGNER_CONTEXT *pSignerContext)
|
|
{
|
|
if(pSignerContext)
|
|
{
|
|
if(pSignerContext->pbBlob)
|
|
free(pSignerContext->pbBlob);
|
|
|
|
free(pSignerContext);
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
|