public C_Decrypt ( uint session, byte encryptedData, uint encryptedDataLen, byte data, uint &dataLen ) : CKR | ||
session | uint | The session's handle |
encryptedData | byte | Encrypted data |
encryptedDataLen | uint | The length of the encrypted data |
data | byte | /// If set to null then the length of decrypted data is returned in "dataLen" parameter, without actually returning decrypted data. /// If not set to null then "dataLen" parameter must contain the lenght of data array and decrypted data is returned in "data" parameter. /// |
dataLen | uint | Location that holds the length of the decrypted data |
Результат | CKR |
public void _01_EncryptAndDecryptSinglePartTest() { if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 1) Assert.Inconclusive("Test cannot be executed on this platform"); CKR rv = CKR.CKR_OK; using (Pkcs11 pkcs11 = new Pkcs11(Settings.Pkcs11LibraryPath)) { rv = pkcs11.C_Initialize(Settings.InitArgs41); if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_CRYPTOKI_ALREADY_INITIALIZED)) Assert.Fail(rv.ToString()); // Find first slot with token present uint slotId = Helpers.GetUsableSlot(pkcs11); uint session = CK.CK_INVALID_HANDLE; rv = pkcs11.C_OpenSession(slotId, (CKF.CKF_SERIAL_SESSION | CKF.CKF_RW_SESSION), IntPtr.Zero, IntPtr.Zero, ref session); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Login as normal user rv = pkcs11.C_Login(session, CKU.CKU_USER, Settings.NormalUserPinArray, Convert.ToUInt32(Settings.NormalUserPinArray.Length)); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Generate symetric key uint keyId = CK.CK_INVALID_HANDLE; rv = Helpers.GenerateKey(pkcs11, session, ref keyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Generate random initialization vector byte[] iv = new byte[8]; rv = pkcs11.C_GenerateRandom(session, iv, Convert.ToUInt32(iv.Length)); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Specify encryption mechanism with initialization vector as parameter. // Note that CkmUtils.CreateMechanism() automaticaly copies iv into newly allocated unmanaged memory. CK_MECHANISM mechanism = CkmUtils.CreateMechanism(CKM.CKM_DES3_CBC, iv); // Initialize encryption operation rv = pkcs11.C_EncryptInit(session, ref mechanism, keyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); byte[] sourceData = ConvertUtils.Utf8StringToBytes("Our new password"); // Get length of encrypted data in first call uint encryptedDataLen = 0; rv = pkcs11.C_Encrypt(session, sourceData, Convert.ToUInt32(sourceData.Length), null, ref encryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); Assert.IsTrue(encryptedDataLen > 0); // Allocate array for encrypted data byte[] encryptedData = new byte[encryptedDataLen]; // Get encrypted data in second call rv = pkcs11.C_Encrypt(session, sourceData, Convert.ToUInt32(sourceData.Length), encryptedData, ref encryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Do something interesting with encrypted data // Initialize decryption operation rv = pkcs11.C_DecryptInit(session, ref mechanism, keyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Get length of decrypted data in first call uint decryptedDataLen = 0; rv = pkcs11.C_Decrypt(session, encryptedData, Convert.ToUInt32(encryptedData.Length), null, ref decryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); Assert.IsTrue(decryptedDataLen > 0); // Allocate array for decrypted data byte[] decryptedData = new byte[decryptedDataLen]; // Get decrypted data in second call rv = pkcs11.C_Decrypt(session, encryptedData, Convert.ToUInt32(encryptedData.Length), decryptedData, ref decryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Do something interesting with decrypted data Assert.IsTrue(Convert.ToBase64String(sourceData) == Convert.ToBase64String(decryptedData)); // In LowLevelAPI we have to free unmanaged memory taken by mechanism parameter (iv in this case) UnmanagedMemory.Free(ref mechanism.Parameter); mechanism.ParameterLen = 0; rv = pkcs11.C_DestroyObject(session, keyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); rv = pkcs11.C_Logout(session); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); rv = pkcs11.C_CloseSession(session); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); rv = pkcs11.C_Finalize(IntPtr.Zero); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); } }
public void _03_EncryptAndDecryptSinglePartOaepTest() { if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 1) Assert.Inconclusive("Test cannot be executed on this platform"); CKR rv = CKR.CKR_OK; using (Pkcs11 pkcs11 = new Pkcs11(Settings.Pkcs11LibraryPath)) { rv = pkcs11.C_Initialize(Settings.InitArgs41); if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_CRYPTOKI_ALREADY_INITIALIZED)) Assert.Fail(rv.ToString()); // Find first slot with token present uint slotId = Helpers.GetUsableSlot(pkcs11); uint session = CK.CK_INVALID_HANDLE; rv = pkcs11.C_OpenSession(slotId, (CKF.CKF_SERIAL_SESSION | CKF.CKF_RW_SESSION), IntPtr.Zero, IntPtr.Zero, ref session); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Login as normal user rv = pkcs11.C_Login(session, CKU.CKU_USER, Settings.NormalUserPinArray, Convert.ToUInt32(Settings.NormalUserPinArray.Length)); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Generate asymetric key pair uint pubKeyId = CK.CK_INVALID_HANDLE; uint privKeyId = CK.CK_INVALID_HANDLE; rv = Helpers.GenerateKeyPair(pkcs11, session, ref pubKeyId, ref privKeyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Specify mechanism parameters CK_RSA_PKCS_OAEP_PARAMS mechanismParams = new CK_RSA_PKCS_OAEP_PARAMS(); mechanismParams.HashAlg = (uint)CKM.CKM_SHA_1; mechanismParams.Mgf = (uint)CKG.CKG_MGF1_SHA1; mechanismParams.Source = (uint)CKZ.CKZ_DATA_SPECIFIED; mechanismParams.SourceData = IntPtr.Zero; mechanismParams.SourceDataLen = 0; // Specify encryption mechanism with parameters // Note that CkmUtils.CreateMechanism() automaticaly copies mechanismParams into newly allocated unmanaged memory. CK_MECHANISM mechanism = CkmUtils.CreateMechanism(CKM.CKM_RSA_PKCS_OAEP, mechanismParams); // Initialize encryption operation rv = pkcs11.C_EncryptInit(session, ref mechanism, pubKeyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); byte[] sourceData = ConvertUtils.Utf8StringToBytes("Hello world"); // Get length of encrypted data in first call uint encryptedDataLen = 0; rv = pkcs11.C_Encrypt(session, sourceData, Convert.ToUInt32(sourceData.Length), null, ref encryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); Assert.IsTrue(encryptedDataLen > 0); // Allocate array for encrypted data byte[] encryptedData = new byte[encryptedDataLen]; // Get encrypted data in second call rv = pkcs11.C_Encrypt(session, sourceData, Convert.ToUInt32(sourceData.Length), encryptedData, ref encryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Do something interesting with encrypted data // Initialize decryption operation rv = pkcs11.C_DecryptInit(session, ref mechanism, privKeyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Get length of decrypted data in first call uint decryptedDataLen = 0; rv = pkcs11.C_Decrypt(session, encryptedData, Convert.ToUInt32(encryptedData.Length), null, ref decryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); Assert.IsTrue(decryptedDataLen > 0); // Allocate array for decrypted data byte[] decryptedData = new byte[decryptedDataLen]; // Get decrypted data in second call rv = pkcs11.C_Decrypt(session, encryptedData, Convert.ToUInt32(encryptedData.Length), decryptedData, ref decryptedDataLen); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); // Array may need to be shrinked if (decryptedData.Length != decryptedDataLen) Array.Resize(ref decryptedData, Convert.ToInt32(decryptedDataLen)); // Do something interesting with decrypted data Assert.IsTrue(Convert.ToBase64String(sourceData) == Convert.ToBase64String(decryptedData)); // In LowLevelAPI we have to free unmanaged memory taken by mechanism parameter UnmanagedMemory.Free(ref mechanism.Parameter); mechanism.ParameterLen = 0; rv = pkcs11.C_DestroyObject(session, privKeyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); rv = pkcs11.C_DestroyObject(session, pubKeyId); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); rv = pkcs11.C_Logout(session); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); rv = pkcs11.C_CloseSession(session); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); rv = pkcs11.C_Finalize(IntPtr.Zero); if (rv != CKR.CKR_OK) Assert.Fail(rv.ToString()); } }