PCCERT_CONTEXT SSL_SOCKET :: CreateOurCertificate()
{
// CertCreateSelfSignCertificate(0,&SubjectName,0,0,0,0,0,0);
HRESULT hr = 0;
HCRYPTPROV hProv = NULL;
PCCERT_CONTEXT p = 0;
HCRYPTKEY hKey = 0;
CERT_NAME_BLOB sib = { 0 };
BOOL AX = 0;
// Step by step to create our own certificate
try
{
// Create the subject
char cb[1000] = {0};
sib.pbData = (BYTE*)cb;
sib.cbData = 1000;
wchar_t* szSubject= L"CN=Certificate";
if (!CertStrToName(CRYPT_ASN_ENCODING, szSubject,0,0,sib.pbData,&sib.cbData,NULL))
throw;
// Acquire Context
wchar_t* pszKeyContainerName = L"Container";
if (!CryptAcquireContext(&hProv,pszKeyContainerName,MS_DEF_PROV,PROV_RSA_FULL,CRYPT_NEWKEYSET | CRYPT_MACHINE_KEYSET))
{
hr = GetLastError();
if (GetLastError() == NTE_EXISTS)
{
if (!CryptAcquireContext(&hProv,pszKeyContainerName,MS_DEF_PROV,PROV_RSA_FULL,CRYPT_MACHINE_KEYSET))
{
throw;
}
}
else
throw;
}
// Generate KeyPair
if (!CryptGenKey(hProv, AT_KEYEXCHANGE, CRYPT_EXPORTABLE, &hKey))
throw;
// Generate the certificate
CRYPT_KEY_PROV_INFO kpi = {0};
kpi.pwszContainerName = pszKeyContainerName;
kpi.pwszProvName = MS_DEF_PROV;
kpi.dwProvType = PROV_RSA_FULL;
kpi.dwFlags = CERT_SET_KEY_CONTEXT_PROP_ID;
kpi.dwKeySpec = AT_KEYEXCHANGE;
SYSTEMTIME et;
GetSystemTime(&et);
et.wYear += 1;
CERT_EXTENSIONS exts = {0};
p = CertCreateSelfSignCertificate(hProv,&sib,0,&kpi,NULL,NULL,&et,&exts);
AX = CryptFindCertificateKeyProvInfo(p,CRYPT_FIND_MACHINE_KEYSET_FLAG,NULL) ;
/* hCS = CertOpenStore(CERT_STORE_PROV_MEMORY,0,0,CERT_STORE_CREATE_NEW_FLAG,0);
AX = CertAddCertificateContextToStore(hCS,p,CERT_STORE_ADD_NEW,0);
AX = CryptFindCertificateKeyProvInfo(p,CRYPT_FIND_MACHINE_KEYSET_FLAG,NULL);*/
}
catch(...)
{
}
if (hKey)
CryptDestroyKey(hKey);
hKey = 0;
if (hProv)
CryptReleaseContext(hProv,0);
hProv = 0;
return p;
}
::PCCERT_CONTEXT acquire ()
{
HRESULT hr = 0;
HCRYPTPROV hProv = NULL;
PCCERT_CONTEXT p = 0;
HCRYPTKEY hKey = 0;
CERT_NAME_BLOB sib = { 0 };
BOOL AX = 0;
try
{
char cb[1000] = {0};
sib.pbData = (BYTE*)cb;
sib.cbData = 1000;
wchar_t* szSubject= L"CN=Certificate";
if (!CertStrToNameW(CRYPT_ASN_ENCODING, szSubject,0,0,sib.pbData,&sib.cbData,NULL))
throw;
wchar_t* pszKeyContainerName = L"Container";
if (!CryptAcquireContextW(&hProv,pszKeyContainerName,MS_DEF_PROV_W,PROV_RSA_FULL,CRYPT_NEWKEYSET | CRYPT_MACHINE_KEYSET))
{
hr = GetLastError();
if (GetLastError() == NTE_EXISTS)
{
if (!CryptAcquireContextW(&hProv,pszKeyContainerName,MS_DEF_PROV_W,PROV_RSA_FULL,CRYPT_MACHINE_KEYSET))
{
throw;
}
}
else
throw;
}
if (!CryptGenKey(hProv, AT_KEYEXCHANGE, CRYPT_EXPORTABLE, &hKey))
throw;
CRYPT_KEY_PROV_INFO kpi = {0};
kpi.pwszContainerName = pszKeyContainerName;
kpi.pwszProvName = MS_DEF_PROV_W;
kpi.dwProvType = PROV_RSA_FULL;
kpi.dwFlags = CERT_SET_KEY_CONTEXT_PROP_ID;
kpi.dwKeySpec = AT_KEYEXCHANGE;
SYSTEMTIME et;
GetSystemTime(&et);
et.wYear += 1;
CERT_EXTENSIONS exts = {0};
p = CertCreateSelfSignCertificate(hProv,&sib,0,&kpi,NULL,NULL,&et,&exts);
AX = CryptFindCertificateKeyProvInfo(p,CRYPT_FIND_MACHINE_KEYSET_FLAG,NULL) ;
}
catch(...)
{
}
// cleanup.
if (hKey)
CryptDestroyKey(hKey);
hKey = 0;
if (hProv)
CryptReleaseContext(hProv,0);
hProv = 0;
// return certificate.
return (p);
}
