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public C_SignInit ( uint session, |
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| session | uint | The session's handle |
| mechanism | Signature mechanism | |
| key | uint | Handle of the signature key |
| return | CKR | |
/// <summary>
/// Creates the PKCS#1 v1.5 RSA signature with SHA-1 mechanism
/// </summary>
/// <param name="data">Data that should be signed</param>
/// <param name="uri">PKCS#11 URI identifying PKCS#11 library, token and private key</param>
/// <returns>PKCS#1 v1.5 RSA signature</returns>
private byte[] SignData(byte[] data, string uri)
{
// Verify input parameters
if (data == null)
throw new ArgumentNullException("data");
if (string.IsNullOrEmpty(uri))
throw new ArgumentNullException("uri");
// Parse PKCS#11 URI
Pkcs11Uri pkcs11Uri = new Pkcs11Uri(uri);
// Verify that URI contains all information required to perform this operation
if (pkcs11Uri.ModulePath == null)
throw new Exception("PKCS#11 URI does not specify PKCS#11 library");
if (pkcs11Uri.PinValue == null)
throw new Exception("PKCS#11 URI does not specify PIN");
if (!pkcs11Uri.DefinesObject || pkcs11Uri.Type != CKO.CKO_PRIVATE_KEY)
throw new Exception("PKCS#11 URI does not specify private key");
// Load and initialize PKCS#11 library specified by URI
CKR rv = CKR.CKR_OK;
using (Pkcs11 pkcs11 = new Pkcs11(pkcs11Uri.ModulePath, true))
{
rv = pkcs11.C_Initialize(Settings.InitArgs40);
if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_CRYPTOKI_ALREADY_INITIALIZED))
Assert.Fail(rv.ToString());
// Obtain a list of all slots with tokens that match URI
uint[] slots = null;
rv = Pkcs11UriUtils.GetMatchingSlotList(pkcs11Uri, pkcs11, true, out slots);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
if ((slots == null) || (slots.Length == 0))
throw new Exception("None of the slots matches PKCS#11 URI");
// Open read only session with first token that matches URI
uint session = CK.CK_INVALID_HANDLE;
rv = pkcs11.C_OpenSession(slots[0], (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 with PIN acquired from URI
byte[] pinValue = ConvertUtils.Utf8StringToBytes(pkcs11Uri.PinValue);
rv = pkcs11.C_Login(session, CKU.CKU_USER, pinValue, Convert.ToUInt32(pinValue.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Get list of object attributes for the private key specified by URI
CK_ATTRIBUTE[] attributes = null;
Pkcs11UriUtils.GetObjectAttributes(pkcs11Uri, out attributes);
// Find private key specified by URI
uint foundObjectCount = 0;
uint[] foundObjectIds = new uint[] { CK.CK_INVALID_HANDLE };
rv = pkcs11.C_FindObjectsInit(session, attributes, Convert.ToUInt32(attributes.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
rv = pkcs11.C_FindObjects(session, foundObjectIds, Convert.ToUInt32(foundObjectIds.Length), ref foundObjectCount);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
rv = pkcs11.C_FindObjectsFinal(session);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
if ((foundObjectCount == 0) || (foundObjectIds[0] == CK.CK_INVALID_HANDLE))
throw new Exception("None of the private keys match PKCS#11 URI");
// Create signature with the private key specified by URI
CK_MECHANISM mechanism = CkmUtils.CreateMechanism(CKM.CKM_SHA1_RSA_PKCS);
rv = pkcs11.C_SignInit(session, ref mechanism, foundObjectIds[0]);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
uint signatureLen = 0;
rv = pkcs11.C_Sign(session, data, Convert.ToUInt32(data.Length), null, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
Assert.IsTrue(signatureLen > 0);
byte[] signature = new byte[signatureLen];
rv = pkcs11.C_Sign(session, data, Convert.ToUInt32(data.Length), signature, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
if (signature.Length != signatureLen)
Array.Resize(ref signature, Convert.ToInt32(signatureLen));
// Release PKCS#11 resources
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());
return signature;
}
}
public void _01_SignAndVerifySinglePartTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 0)
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.InitArgs40);
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 signing mechanism (needs no parameter => no unamanaged memory is needed)
CK_MECHANISM mechanism = CkmUtils.CreateMechanism(CKM.CKM_SHA1_RSA_PKCS);
// Initialize signing operation
rv = pkcs11.C_SignInit(session, ref mechanism, privKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
byte[] sourceData = ConvertUtils.Utf8StringToBytes("Hello world");
// Get length of signature in first call
uint signatureLen = 0;
rv = pkcs11.C_Sign(session, sourceData, Convert.ToUInt32(sourceData.Length), null, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
Assert.IsTrue(signatureLen > 0);
// Allocate array for signature
byte[] signature = new byte[signatureLen];
// Get signature in second call
rv = pkcs11.C_Sign(session, sourceData, Convert.ToUInt32(sourceData.Length), signature, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Do something interesting with signature
// Initialize verification operation
rv = pkcs11.C_VerifyInit(session, ref mechanism, pubKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Verify signature
rv = pkcs11.C_Verify(session, sourceData, Convert.ToUInt32(sourceData.Length), signature, Convert.ToUInt32(signature.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Do something interesting with verification result
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());
}
}
public void _01_BasicSignEncryptAndDecryptVerifyTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 0)
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.InitArgs40);
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 signing mechanism (needs no parameter => no unamanaged memory is needed)
CK_MECHANISM signingMechanism = CkmUtils.CreateMechanism(CKM.CKM_SHA1_RSA_PKCS);
// 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 encryptionMechanism = CkmUtils.CreateMechanism(CKM.CKM_DES3_CBC, iv);
byte[] sourceData = ConvertUtils.Utf8StringToBytes("Passw0rd");
byte[] signature = null;
byte[] encryptedData = null;
byte[] decryptedData = null;
// Multipart signing and encryption function C_SignEncryptUpdate can be used i.e. for signing and encryption of streamed data
using (MemoryStream inputStream = new MemoryStream(sourceData), outputStream = new MemoryStream())
{
// Initialize signing operation
rv = pkcs11.C_SignInit(session, ref signingMechanism, privKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Initialize encryption operation
rv = pkcs11.C_EncryptInit(session, ref encryptionMechanism, keyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Prepare buffer for source data part
// Note that in real world application we would rather use bigger buffer i.e. 4096 bytes long
byte[] part = new byte[8];
// Prepare buffer for encrypted data part
// Note that in real world application we would rather use bigger buffer i.e. 4096 bytes long
byte[] encryptedPart = new byte[8];
uint encryptedPartLen = Convert.ToUInt32(encryptedPart.Length);
// Read input stream with source data
int bytesRead = 0;
while ((bytesRead = inputStream.Read(part, 0, part.Length)) > 0)
{
// Process each individual source data part
encryptedPartLen = Convert.ToUInt32(encryptedPart.Length);
rv = pkcs11.C_SignEncryptUpdate(session, part, Convert.ToUInt32(bytesRead), encryptedPart, ref encryptedPartLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Append encrypted data part to the output stream
outputStream.Write(encryptedPart, 0, Convert.ToInt32(encryptedPartLen));
}
// Get the length of signature in first call
uint signatureLen = 0;
rv = pkcs11.C_SignFinal(session, null, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
Assert.IsTrue(signatureLen > 0);
// Allocate array for signature
signature = new byte[signatureLen];
// Get signature in second call
rv = pkcs11.C_SignFinal(session, signature, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Get the length of last encrypted data part in first call
byte[] lastEncryptedPart = null;
uint lastEncryptedPartLen = 0;
rv = pkcs11.C_EncryptFinal(session, null, ref lastEncryptedPartLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Allocate array for the last encrypted data part
lastEncryptedPart = new byte[lastEncryptedPartLen];
// Get the last encrypted data part in second call
rv = pkcs11.C_EncryptFinal(session, lastEncryptedPart, ref lastEncryptedPartLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Append the last encrypted data part to the output stream
outputStream.Write(lastEncryptedPart, 0, Convert.ToInt32(lastEncryptedPartLen));
// Read whole output stream to the byte array so we can compare results more easily
encryptedData = outputStream.ToArray();
}
// Do something interesting with signature and encrypted data
// Multipart decryption and verification function C_DecryptVerifyUpdate can be used i.e. for decryption and signature verification of streamed data
using (MemoryStream inputStream = new MemoryStream(encryptedData), outputStream = new MemoryStream())
{
// Initialize decryption operation
rv = pkcs11.C_DecryptInit(session, ref encryptionMechanism, keyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Initialize verification operation
rv = pkcs11.C_VerifyInit(session, ref signingMechanism, pubKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Prepare buffer for encrypted data part
// Note that in real world application we would rather use bigger buffer i.e. 4096 bytes long
byte[] encryptedPart = new byte[8];
// Prepare buffer for decrypted data part
// Note that in real world application we would rather use bigger buffer i.e. 4096 bytes long
byte[] part = new byte[8];
uint partLen = Convert.ToUInt32(part.Length);
// Read input stream with encrypted data
int bytesRead = 0;
while ((bytesRead = inputStream.Read(encryptedPart, 0, encryptedPart.Length)) > 0)
{
// Process each individual encrypted data part
partLen = Convert.ToUInt32(part.Length);
rv = pkcs11.C_DecryptVerifyUpdate(session, encryptedPart, Convert.ToUInt32(bytesRead), part, ref partLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Append decrypted data part to the output stream
outputStream.Write(part, 0, Convert.ToInt32(partLen));
}
// Get the length of last decrypted data part in first call
byte[] lastPart = null;
uint lastPartLen = 0;
rv = pkcs11.C_DecryptFinal(session, null, ref lastPartLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Allocate array for the last decrypted data part
lastPart = new byte[lastPartLen];
// Get the last decrypted data part in second call
rv = pkcs11.C_DecryptFinal(session, lastPart, ref lastPartLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Append the last decrypted data part to the output stream
outputStream.Write(lastPart, 0, Convert.ToInt32(lastPartLen));
// Read whole output stream to the byte array so we can compare results more easily
decryptedData = outputStream.ToArray();
// Verify signature
rv = pkcs11.C_VerifyFinal(session, signature, Convert.ToUInt32(signature.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
}
// Do something interesting with decrypted data and verification result
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 encryptionMechanism.Parameter);
encryptionMechanism.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_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 _02_SignAndVerifyMultiPartTest()
{
if (Platform.UnmanagedLongSize != 4 || Platform.StructPackingSize != 0)
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.InitArgs40);
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 signing mechanism (needs no parameter => no unamanaged memory is needed)
CK_MECHANISM mechanism = CkmUtils.CreateMechanism(CKM.CKM_SHA1_RSA_PKCS);
byte[] sourceData = ConvertUtils.Utf8StringToBytes("Hello world");
byte[] signature = null;
// Multipart signature functions C_SignUpdate and C_SignFinal can be used i.e. for signing of streamed data
using (MemoryStream inputStream = new MemoryStream(sourceData))
{
// Initialize signing operation
rv = pkcs11.C_SignInit(session, ref mechanism, privKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Prepare buffer for source data part
// Note that in real world application we would rather use bigger buffer i.e. 4096 bytes long
byte[] part = new byte[8];
// Read input stream with source data
int bytesRead = 0;
while ((bytesRead = inputStream.Read(part, 0, part.Length)) > 0)
{
// Process each individual source data part
rv = pkcs11.C_SignUpdate(session, part, Convert.ToUInt32(bytesRead));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
}
// Get the length of signature in first call
uint signatureLen = 0;
rv = pkcs11.C_SignFinal(session, null, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
Assert.IsTrue(signatureLen > 0);
// Allocate array for signature
signature = new byte[signatureLen];
// Get signature in second call
rv = pkcs11.C_SignFinal(session, signature, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
}
// Do something interesting with signature
// Multipart verification functions C_VerifyUpdate and C_VerifyFinal can be used i.e. for signature verification of streamed data
using (MemoryStream inputStream = new MemoryStream(sourceData))
{
// Initialize verification operation
rv = pkcs11.C_VerifyInit(session, ref mechanism, pubKeyId);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Prepare buffer for source data part
// Note that in real world application we would rather use bigger buffer i.e. 4096 bytes long
byte[] part = new byte[8];
// Read input stream with source data
int bytesRead = 0;
while ((bytesRead = inputStream.Read(part, 0, part.Length)) > 0)
{
// Process each individual source data part
rv = pkcs11.C_VerifyUpdate(session, part, Convert.ToUInt32(bytesRead));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
}
// Verify signature
rv = pkcs11.C_VerifyFinal(session, signature, Convert.ToUInt32(signature.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
}
// Do something interesting with verification result
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());
}
}
