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vletoux |
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/* OpenPGP Smart Card Mini Driver |
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Copyright (C) 2009 Vincent Le Toux |
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This library is Free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License version 2.1 as published by the Free Software Foundation. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include <windows.h> |
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#include <cardmod.h> |
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#include "Tracing.h" |
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#include "Context.h" |
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#include "CryptoOperations.h" |
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// 4.7 Cryptographic operations |
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/** This function performs an RSA decryption operation on the passed buffer |
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by using the private key that a container index refers to. Note that for |
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ECC-only smart cards, this entry point is not defined and is set to NULL |
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in the returned CARD_DATA structure from CardAcquireContext. This operation |
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is restricted to a single buffer of a size equal to the key modulus.*/ |
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DWORD WINAPI CardRSADecrypt( |
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__in PCARD_DATA pCardData, |
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__inout PCARD_RSA_DECRYPT_INFO pInfo |
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) |
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{ |
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DWORD dwReturn = 0; |
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Trace(WINEVENT_LEVEL_VERBOSE, L"Enter"); |
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__try |
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{ |
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if ( pCardData == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pCardData == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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if ( pInfo == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pInfo == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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if ( pInfo->pbData == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pInfo->pbData == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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if (pInfo->dwVersion < CARD_RSA_KEY_DECRYPT_INFO_CURRENT_VERSION |
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&& pCardData->dwVersion == CARD_DATA_CURRENT_VERSION) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"ERROR_REVISION_MISMATCH"); |
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dwReturn = ERROR_REVISION_MISMATCH; |
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__leave; |
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} |
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if (pInfo->dwKeySpec != AT_KEYEXCHANGE) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"AT_KEYEXCHANGE %d", pInfo->dwKeySpec); |
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dwReturn = SCARD_E_NO_KEY_CONTAINER ; |
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__leave; |
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} |
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if (pInfo->bContainerIndex != Confidentiality) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"Confidentiality %d", pInfo->bContainerIndex); |
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dwReturn = SCARD_E_NO_KEY_CONTAINER ; |
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__leave; |
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} |
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dwReturn = CheckContext(pCardData); |
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if ( dwReturn) |
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{ |
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__leave; |
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} |
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dwReturn = SCardDecrypt(pCardData, pInfo); |
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} |
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__finally |
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{ |
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} |
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Trace(WINEVENT_LEVEL_VERBOSE, L"dwReturn = 0x%08X",dwReturn); |
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return dwReturn; |
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} |
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/** The CardSignData function signs a block of unpadded data. This entry either performs |
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padding on the card or pads the data by using the PFN_CSP_PAD_DATA callback. All card |
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minidrivers must support this entry point.*/ |
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DWORD WINAPI CardSignData( |
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__in PCARD_DATA pCardData, |
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__in PCARD_SIGNING_INFO pInfo |
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) |
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{ |
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DWORD dwReturn = 0; |
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Trace(WINEVENT_LEVEL_VERBOSE, L"Enter"); |
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__try |
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{ |
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if ( pCardData == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pCardData == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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if ( pInfo == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pInfo == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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if ( pInfo->pbData == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pInfo->pbData == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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dwReturn = CheckContext(pCardData); |
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if ( dwReturn) |
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{ |
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__leave; |
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} |
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dwReturn = SCardSign(pCardData, pInfo); |
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} |
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__finally |
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{ |
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} |
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Trace(WINEVENT_LEVEL_VERBOSE, L"dwReturn = 0x%08X",dwReturn); |
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return dwReturn; |
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} |
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/** This function returns the public key sizes that are supported by the card in use.*/ |
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DWORD WINAPI CardQueryKeySizes( |
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__in PCARD_DATA pCardData, |
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__in DWORD dwKeySpec, |
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__in DWORD dwFlags, |
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__inout PCARD_KEY_SIZES pKeySizes |
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) |
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{ |
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DWORD dwReturn = 0, dwVersion; |
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Trace(WINEVENT_LEVEL_VERBOSE, L"Enter"); |
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__try |
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{ |
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if ( pCardData == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pCardData == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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if ( dwFlags != 0 ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"dwFlags != 0 : %d", dwFlags); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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if ( pKeySizes == NULL ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"pKeySizes == NULL"); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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} |
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dwVersion = (pKeySizes->dwVersion == 0) ? 1 : pKeySizes->dwVersion; |
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if ( dwVersion != CARD_KEY_SIZES_CURRENT_VERSION ) |
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{ |
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Trace(WINEVENT_LEVEL_ERROR, L"dwVersion == %d", pKeySizes->dwVersion); |
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dwReturn = ERROR_REVISION_MISMATCH; |
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__leave; |
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} |
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switch(dwKeySpec) |
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{ |
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case AT_ECDHE_P256 : |
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case AT_ECDHE_P384 : |
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case AT_ECDHE_P521 : |
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case AT_ECDSA_P256 : |
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case AT_ECDSA_P384 : |
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case AT_ECDSA_P521 : |
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Trace(WINEVENT_LEVEL_ERROR, L"dwKeySpec == %d", dwKeySpec); |
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dwReturn = SCARD_E_UNSUPPORTED_FEATURE; |
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__leave; |
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break; |
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case AT_KEYEXCHANGE: |
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case AT_SIGNATURE : |
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break; |
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default: |
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Trace(WINEVENT_LEVEL_ERROR, L"dwKeySpec == %d", dwKeySpec); |
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dwReturn = SCARD_E_INVALID_PARAMETER; |
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__leave; |
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break; |
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} |
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pKeySizes->dwMinimumBitlen = 1024; |
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pKeySizes->dwDefaultBitlen = 2048; |
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pKeySizes->dwMaximumBitlen = 2048; |
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pKeySizes->dwIncrementalBitlen = 0; |
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} |
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__finally |
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{ |
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} |
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Trace(WINEVENT_LEVEL_VERBOSE, L"dwReturn = 0x%08X",dwReturn); |
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return dwReturn; |
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} |
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/** The CardConstructDHAgreement function performs a secret agreement calculation |
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for Diffie Hellman (DH) key exchange by using a private key that is present on the |
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card. For RSA-only card minidrivers, this entry point is not defined and is set to |
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NULL in the CARD_DATA structure that is returned from CardAcquireContext. |
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The CARD_DH_AGREEMENT structure changes to allow for return of a handle to |
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the agreed secret. This raises a point about how to index the DH agreement |
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on the card in an opaque manner. Maintaining a map file is unnecessary because |
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Ncrypt makes no provision for persistent DH agreements and there is no way to |
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retrieve one after a provider is closed. DH agreements are addressable on card |
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through an opaque BYTE that the card minidriver maintains. This BYTE should be |
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associated with a handle to a card-side agreement.*/ |
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DWORD WINAPI CardConstructDHAgreement( |
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__in PCARD_DATA pCardData, |
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__inout PCARD_DH_AGREEMENT_INFO pSecretInfo |
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) |
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{ |
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Trace(WINEVENT_LEVEL_VERBOSE, L"Enter"); |
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return SCARD_E_UNSUPPORTED_FEATURE; |
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} |
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/** The key derivation structure represents the majority of the required changes |
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for FIPS 140-2 compliance for smart cards. It holds the requested key derivation |
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function (KDF) and the associated input. The KDFs are defined in the CNG Reference |
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documentation on MSDN. For RSA-only card minidrivers, this entry point is not defined |
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and is set to NULL in the CARD_DATA structure that is returned from CardAcquireContext.*/ |
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DWORD WINAPI CardDeriveKey( |
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__in PCARD_DATA pCardData, |
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__inout PCARD_DERIVE_KEY pAgreementInfo |
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) |
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{ |
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Trace(WINEVENT_LEVEL_VERBOSE, L"Enter"); |
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return SCARD_E_UNSUPPORTED_FEATURE; |
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} |
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/** The CardDestroyDHAgreement function removes an agreed secret from the card. |
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For RSA-only card minidrivers, this entry point is not defined and is set to |
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NULL in the CARD_DATA structure that was returned from CardAcquireContext.*/ |
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DWORD WINAPI CardDestroyDHAgreement( |
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__in PCARD_DATA pCardData, |
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__in BYTE bSecretAgreementIndex, |
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__in DWORD dwFlags |
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) |
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{ |
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Trace(WINEVENT_LEVEL_VERBOSE, L"Enter"); |
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return SCARD_E_UNSUPPORTED_FEATURE; |
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} |
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