Stream filter for CMS_Sign()
ReadEye
iliya.yurkevic at mail.ru
Mon Mar 23 11:21:29 UTC 2020
Hey! I want to use stream filter witn CMS_sign. I have a problem: my program
doesn't produce cms signed data. Attaching my code and output data below.
The code that follows is a fragment from my original program.
void SignInit(CryptPacket &packet) //use once for initialization
{
if (m_cms)
return;
CK_ULONG certCount = NULL;
std::vector<CK_OBJECT_HANDLE>certHandles;
std::vector<CK_BYTE> certValue;
X509* x509Cert = nullptr;
CK_SESSION_HANDLE session = NULL;
CK_BYTE* p_CKA_ID;
EVP_PKEY* key = NULL;
try
{
m_pCryptoModule->Authentication(session, true);
Rtk_CertInfo2* p_rtk_certinfo2_object =
m_pCryptoModule->m_CertsCollection.GetCert(packet.request.senderCertId);
if (!p_rtk_certinfo2_object)
ca_throw_cert_need_log(packet.request.senderCertId);
std::vector <CK_BYTE> ckId = p_rtk_certinfo2_object->m_ckId;
p_CKA_ID = new CK_BYTE[ckId.size()];
std::copy(ckId.begin(), ckId.end(), p_CKA_ID);
CK_ATTRIBUTE certificateTemplate[] = CERTIFICATE_TEMPLATE(ckId, p_CKA_ID);
key = GetKeyPair(ckId, session, m_pCryptoModule->m_functionList);
if (!key)
{
ca_throw_log(RTK_E_FIND_KEY_FAILED);
}
if (m_pCryptoModule->m_functionList->C_FindObjectsInit(session,
certificateTemplate, arraysize(certificateTemplate)) != CKR_OK)
{
ca_throw_log(RTK_E_FIND_OBJECTS_INIT_FAILED);
}
certHandles.clear();
certHandles.resize(10000);
if (m_pCryptoModule->m_functionList->C_FindObjects(session,
certHandles.data(), (CK_ULONG)certHandles.size(), &certCount) != CKR_OK ||
certCount == 0)
{
ca_throw_log(RTK_E_FIND_OBJECTS_FAILED);
}
CK_ATTRIBUTE certValueAttr = { CKA_VALUE, NULL_PTR, 0 };
if (m_pCryptoModule->m_functionList->C_GetAttributeValue(session,
certHandles[0], &certValueAttr, 1) != CKR_OK)
ca_throw_log(RTK_E_GET_CKA_VALUE_FAILED);
certValue.resize(certValueAttr.ulValueLen);
certValueAttr.pValue = certValue.data();
if (m_pCryptoModule->m_functionList->C_GetAttributeValue(session,
certHandles[0], &certValueAttr, 1) != CKR_OK)
ca_throw_log(RTK_E_GET_CKA_VALUE_FAILED);
x509Cert = CertToX509(CertToPem(certValue));
if (!x509Cert)
{
ca_throw_log(RTK_E_CERT_TO_X509_FAILED);
}
if (m_pCryptoModule->m_functionList->C_FindObjectsFinal(session) !=
CKR_OK)
{
ca_throw_log(RTK_E_FIND_OBJECTS_FINAL_FAILED);
}
m_cms = CMS_sign(x509Cert, key, NULL, NULL, CMS_STREAM | CMS_BINARY);
if (!m_cms)
{
ca_throw_log(RTK_E_ENCRYPT_FAILED);
}
m_input = BIO_new_CMS(m_output, m_cms);
m_pCryptoModule->EndSession(session, true);
X509_free(x509Cert);
if (!rt_eng_invalidate_p11_ossl_evp_pkey(key))
{
ca_throw_log(RTK_E_RESET_KEY_PAIR_DESCRIPTOR_FAILED);
}
EVP_PKEY_free(key);
delete[] p_CKA_ID;
}
ca_catch
{
if (x509Cert)
X509_free(x509Cert);
if (key)
{
if (!rt_eng_invalidate_p11_ossl_evp_pkey(key))
ca_log_err(RTK_E_RESET_KEY_PAIR_DESCRIPTOR_FAILED);
EVP_PKEY_free(key);
}
delete[] p_CKA_ID;
m_pCryptoModule->EndSession(session, true);
packet.response.errorCode = ex;
packet.response.errorMessage = GetErrorMessage(ex);
}
}
void Stream(CryptPacket & packet)//for multiple calls
{
ca_lock;
try
{
SignInit(packet);
BYTE* pbData = packet.request.GetFileData();
DWORD cbData = packet.request.GetFileDataSize();
if (BIO_write(m_input, pbData, cbData) <= 0)
ca_throw_log(RTK_E_WRITE_TO_OUT_BUF_FAILED);
if (packet.request.streamFinalChunk)//finalization
BIO_flush(m_input);
std::vector<uint8_t> cmsBuf = ReadMemBio(m_output);
if (!cmsBuf.size())
ca_throw_log(RTK_E_READ_FROM_BUF_FAILED);
packet.response.SetFileData(cmsBuf.data(), cmsBuf.size());//write data to
file
}
ca_catch
{
packet.response.errorCode = ex;
packet.response.errorMessage = GetErrorMessage(ex);
}
}
Data written in the file as a result:
<http://openssl.6102.n7.nabble.com/file/t11625/res.jpg>
Data as input for Signing:
<http://openssl.6102.n7.nabble.com/file/t11625/data.jpg>
Am I missing something? Is there another way I can achieve the same thing?
Thanks for attention
--
Sent from: http://openssl.6102.n7.nabble.com/OpenSSL-User-f3.html
More information about the openssl-users
mailing list