| public C_Sign ( ulong session, byte data, ulong dataLen, byte signature, ulong &signatureLen ) : CKR | ||
| session | ulong | The session's handle |
| data | byte | Data to be signed |
| dataLen | ulong | The length of the data |
| signature | byte | /// If set to null then the length of signature is returned in "signatureLen" parameter, without actually returning signature. /// If not set to null then "signatureLen" parameter must contain the lenght of signature array and signature is returned in "signature" parameter. /// |
| signatureLen | ulong | Location that holds the length of the signature |
| 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.InitArgs81);
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
ulong[] 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
ulong 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.ToUInt64(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
ulong foundObjectCount = 0;
ulong[] foundObjectIds = new ulong[] { CK.CK_INVALID_HANDLE };
rv = pkcs11.C_FindObjectsInit(session, attributes, Convert.ToUInt64(attributes.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
rv = pkcs11.C_FindObjects(session, foundObjectIds, Convert.ToUInt64(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());
ulong signatureLen = 0;
rv = pkcs11.C_Sign(session, data, Convert.ToUInt64(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.ToUInt64(data.Length), signature, ref signatureLen);
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
if (signature.Length != Convert.ToInt32(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 != 8 || 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.InitArgs81);
if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_CRYPTOKI_ALREADY_INITIALIZED))
Assert.Fail(rv.ToString());
// Find first slot with token present
ulong slotId = Helpers.GetUsableSlot(pkcs11);
ulong 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.ToUInt64(Settings.NormalUserPinArray.Length));
if (rv != CKR.CKR_OK)
Assert.Fail(rv.ToString());
// Generate asymetric key pair
ulong pubKeyId = CK.CK_INVALID_HANDLE;
ulong 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
ulong signatureLen = 0;
rv = pkcs11.C_Sign(session, sourceData, Convert.ToUInt64(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.ToUInt64(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.ToUInt64(sourceData.Length), signature, Convert.ToUInt64(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());
}
}