/// <summary>
/// Decrypts single-part data
/// </summary>
/// <param name="mechanism">Decryption mechanism</param>
/// <param name="keyHandle">Handle of the decryption key</param>
/// <param name="encryptedData">Data to be decrypted</param>
/// <returns>Decrypted data</returns>
public byte[] Decrypt(Mechanism mechanism, ObjectHandle keyHandle, byte[] encryptedData)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (encryptedData == null)
throw new ArgumentNullException("encryptedData");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_DecryptInit(_sessionId, ref ckMechanism, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptInit", rv);
uint decryptedDataLen = 0;
rv = _p11.C_Decrypt(_sessionId, encryptedData, Convert.ToUInt32(encryptedData.Length), null, ref decryptedDataLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_Decrypt", rv);
byte[] decryptedData = new byte[decryptedDataLen];
rv = _p11.C_Decrypt(_sessionId, encryptedData, Convert.ToUInt32(encryptedData.Length), decryptedData, ref decryptedDataLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_Decrypt", rv);
if (decryptedData.Length != decryptedDataLen)
Array.Resize(ref decryptedData, Convert.ToInt32(decryptedDataLen));
return decryptedData;
}
/// <summary>
/// Decrypts multi-part data
/// </summary>
/// <param name="mechanism">Decryption mechanism</param>
/// <param name="keyHandle">Handle of the decryption key</param>
/// <param name="inputStream">Input stream from which encrypted data should be read</param>
/// <param name="outputStream">Output stream where decrypted data should be written</param>
/// <param name="bufferLength">Size of read buffer in bytes</param>
public void Decrypt(Mechanism mechanism, ObjectHandle keyHandle, Stream inputStream, Stream outputStream, int bufferLength)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (outputStream == null)
throw new ArgumentNullException("outputStream");
if (bufferLength < 1)
throw new ArgumentException("Value has to be positive number", "bufferLength");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_DecryptInit(_sessionId, ref ckMechanism, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptInit", rv);
byte[] encryptedPart = new byte[bufferLength];
byte[] part = new byte[bufferLength];
uint partLen = Convert.ToUInt32(part.Length);
int bytesRead = 0;
while ((bytesRead = inputStream.Read(encryptedPart, 0, encryptedPart.Length)) > 0)
{
partLen = Convert.ToUInt32(part.Length);
rv = _p11.C_DecryptUpdate(_sessionId, encryptedPart, Convert.ToUInt32(bytesRead), part, ref partLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptUpdate", rv);
outputStream.Write(part, 0, Convert.ToInt32(partLen));
}
byte[] lastPart = null;
uint lastPartLen = 0;
rv = _p11.C_DecryptFinal(_sessionId, null, ref lastPartLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptFinal", rv);
lastPart = new byte[lastPartLen];
rv = _p11.C_DecryptFinal(_sessionId, lastPart, ref lastPartLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptFinal", rv);
if (lastPartLen > 0)
outputStream.Write(lastPart, 0, Convert.ToInt32(lastPartLen));
}
/// <summary>
/// Gets the size of an object in bytes.
/// </summary>
/// <param name="objectHandle">Handle of object</param>
/// <returns>Size of an object in bytes</returns>
public uint GetObjectSize(ObjectHandle objectHandle)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (objectHandle == null)
throw new ArgumentNullException("objectHandle");
uint objectSize = 0;
CKR rv = _p11.C_GetObjectSize(_sessionId, objectHandle.ObjectId, ref objectSize);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_GetObjectSize", rv);
return objectSize;
}
/// <summary>
/// Obtains the value of one or more attributes of an object
/// </summary>
/// <param name="objectHandle">Handle of object whose attributes should be read</param>
/// <param name="attributes">List of attributes that should be read</param>
/// <returns>Object attributes</returns>
public List<ObjectAttribute> GetAttributeValue(ObjectHandle objectHandle, List<uint> attributes)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (objectHandle == null)
throw new ArgumentNullException("objectHandle");
if (attributes == null)
throw new ArgumentNullException("attributes");
if (attributes.Count < 1)
throw new ArgumentException("No attributes specified", "attributes");
// Prepare array of CK_ATTRIBUTEs
CK_ATTRIBUTE[] template = new CK_ATTRIBUTE[attributes.Count];
for (int i = 0; i < attributes.Count; i++)
template[i] = CkaUtils.CreateAttribute(attributes[i]);
// Determine size of attribute values
CKR rv = _p11.C_GetAttributeValue(_sessionId, objectHandle.ObjectId, template, Convert.ToUInt32(template.Length));
if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_ATTRIBUTE_SENSITIVE) && (rv != CKR.CKR_ATTRIBUTE_TYPE_INVALID))
throw new Pkcs11Exception("C_GetAttributeValue", rv);
// Allocate memory for each attribute
for (int i = 0; i < template.Length; i++)
{
// PKCS#11 v2.20 page 133:
// If the specified attribute (i.e., the attribute specified by the type field) for the object
// cannot be revealed because the object is sensitive or unextractable, then the
// ulValueLen field in that triple is modified to hold the value -1 (i.e., when it is cast to a
// CK_LONG, it holds -1).
if ((int)template[i].valueLen != -1)
template[i].value = Common.UnmanagedMemory.Allocate(Convert.ToInt32(template[i].valueLen));
}
// Read values of attributes
rv = _p11.C_GetAttributeValue(_sessionId, objectHandle.ObjectId, template, Convert.ToUInt32(template.Length));
if ((rv != CKR.CKR_OK) && (rv != CKR.CKR_ATTRIBUTE_SENSITIVE) && (rv != CKR.CKR_ATTRIBUTE_TYPE_INVALID))
throw new Pkcs11Exception("C_GetAttributeValue", rv);
// Convert CK_ATTRIBUTEs to ObjectAttributes
List<ObjectAttribute> outAttributes = new List<ObjectAttribute>();
for (int i = 0; i < template.Length; i++)
outAttributes.Add(new ObjectAttribute(template[i]));
return outAttributes;
}
/// <summary>
/// Derives a key from a base key, creating a new key object
/// </summary>
/// <param name="mechanism">Derivation mechanism</param>
/// <param name="baseKeyHandle">Handle of base key</param>
/// <param name="attributes">Attributes for the new key</param>
/// <returns>Handle of derived key</returns>
public ObjectHandle DeriveKey(Mechanism mechanism, ObjectHandle baseKeyHandle, List<ObjectAttribute> attributes)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (baseKeyHandle == null)
throw new ArgumentNullException("baseKeyHandle");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CK_ATTRIBUTE[] template = null;
uint templateLen = 0;
if (attributes != null)
{
template = new CK_ATTRIBUTE[attributes.Count];
for (int i = 0; i < attributes.Count; i++)
template[i] = attributes[i].CkAttribute;
templateLen = Convert.ToUInt32(attributes.Count);
}
uint derivedKey = CK.CK_INVALID_HANDLE;
CKR rv = _p11.C_DeriveKey(_sessionId, ref ckMechanism, baseKeyHandle.ObjectId, template, templateLen, ref derivedKey);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DeriveKey", rv);
return new ObjectHandle(derivedKey);
}
/// <summary>
/// Copies an object, creating a new object for the copy
/// </summary>
/// <param name="objectHandle">Handle of object to be copied</param>
/// <param name="attributes">New values for any attributes of the object that can ordinarily be modified</param>
/// <returns>Handle of copied object</returns>
public ObjectHandle CopyObject(ObjectHandle objectHandle, List<ObjectAttribute> attributes)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (objectHandle == null)
throw new ArgumentNullException("objectHandle");
uint objectId = CK.CK_INVALID_HANDLE;
CK_ATTRIBUTE[] template = null;
uint templateLength = 0;
if (attributes != null)
{
templateLength = Convert.ToUInt32(attributes.Count);
template = new CK_ATTRIBUTE[templateLength];
for (int i = 0; i < templateLength; i++)
template[i] = attributes[i].CkAttribute;
}
CKR rv = _p11.C_CopyObject(_sessionId, objectHandle.ObjectId, template, templateLength, ref objectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_CopyObject", rv);
return new ObjectHandle(objectId);
}
/// <summary>
/// Verifies a signature of data, where the signature is an appendix to the data
/// </summary>
/// <param name="mechanism">Verification mechanism;</param>
/// <param name="keyHandle">Verification key</param>
/// <param name="inputStream">Input stream from which data that was signed should be read</param>
/// <param name="signature">Signature</param>
/// <param name="isValid">Flag indicating whether signature is valid</param>
/// <param name="bufferLength">Size of read buffer in bytes</param>
public void Verify(Mechanism mechanism, ObjectHandle keyHandle, Stream inputStream, byte[] signature, out bool isValid, int bufferLength)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (signature == null)
throw new ArgumentNullException("signature");
if (bufferLength < 1)
throw new ArgumentException("Value has to be positive number", "bufferLength");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_VerifyInit(_sessionId, ref ckMechanism, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_VerifyInit", rv);
byte[] part = new byte[bufferLength];
int bytesRead = 0;
while ((bytesRead = inputStream.Read(part, 0, part.Length)) > 0)
{
rv = _p11.C_VerifyUpdate(_sessionId, part, Convert.ToUInt32(bytesRead));
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_VerifyUpdate", rv);
}
rv = _p11.C_VerifyFinal(_sessionId, signature, Convert.ToUInt32(signature.Length));
if (rv == CKR.CKR_OK)
isValid = true;
else if (rv == CKR.CKR_SIGNATURE_INVALID)
isValid = false;
else
throw new Pkcs11Exception("C_VerifyFinal", rv);
}
/// <summary>
/// Generates a public/private key pair, creating new key objects
/// </summary>
/// <param name="mechanism">Key generation mechanism</param>
/// <param name="publicKeyAttributes">Attributes of the public key</param>
/// <param name="privateKeyAttributes">Attributes of the private key</param>
/// <param name="publicKeyHandle">Handle of the new public key</param>
/// <param name="privateKeyHandle">Handle of the new private key</param>
public void GenerateKeyPair(Mechanism mechanism, List<ObjectAttribute> publicKeyAttributes, List<ObjectAttribute> privateKeyAttributes, out ObjectHandle publicKeyHandle, out ObjectHandle privateKeyHandle)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CK_ATTRIBUTE[] publicKeyTemplate = null;
uint publicKeyTemplateLength = 0;
if (publicKeyAttributes != null)
{
publicKeyTemplateLength = Convert.ToUInt32(publicKeyAttributes.Count);
publicKeyTemplate = new CK_ATTRIBUTE[publicKeyTemplateLength];
for (int i = 0; i < publicKeyTemplateLength; i++)
publicKeyTemplate[i] = publicKeyAttributes[i].CkAttribute;
}
CK_ATTRIBUTE[] privateKeyTemplate = null;
uint privateKeyTemplateLength = 0;
if (privateKeyAttributes != null)
{
privateKeyTemplateLength = Convert.ToUInt32(privateKeyAttributes.Count);
privateKeyTemplate = new CK_ATTRIBUTE[privateKeyTemplateLength];
for (int i = 0; i < privateKeyTemplateLength; i++)
privateKeyTemplate[i] = privateKeyAttributes[i].CkAttribute;
}
uint publicKeyId = CK.CK_INVALID_HANDLE;
uint privateKeyId = CK.CK_INVALID_HANDLE;
CKR rv = _p11.C_GenerateKeyPair(_sessionId, ref ckMechanism, publicKeyTemplate, publicKeyTemplateLength, privateKeyTemplate, privateKeyTemplateLength, ref publicKeyId, ref privateKeyId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_GenerateKeyPair", rv);
publicKeyHandle = new ObjectHandle(publicKeyId);
privateKeyHandle = new ObjectHandle(privateKeyId);
}
/// <summary>
/// Verifies a signature of data, where the signature is an appendix to the data
/// </summary>
/// <param name="mechanism">Verification mechanism;</param>
/// <param name="keyHandle">Verification key</param>
/// <param name="data">Data that was signed</param>
/// <param name="signature">Signature</param>
/// <param name="isValid">Flag indicating whether signature is valid</param>
public void Verify(Mechanism mechanism, ObjectHandle keyHandle, byte[] data, byte[] signature, out bool isValid)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (data == null)
throw new ArgumentNullException("data");
if (signature == null)
throw new ArgumentNullException("signature");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_VerifyInit(_sessionId, ref ckMechanism, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_VerifyInit", rv);
rv = _p11.C_Verify(_sessionId, data, Convert.ToUInt32(data.Length), signature, Convert.ToUInt32(signature.Length));
if (rv == CKR.CKR_OK)
isValid = true;
else if (rv == CKR.CKR_SIGNATURE_INVALID)
isValid = false;
else
throw new Pkcs11Exception("C_Verify", rv);
}
/// <summary>
/// Verifies a signature of data, where the signature is an appendix to the data
/// </summary>
/// <param name="mechanism">Verification mechanism;</param>
/// <param name="keyHandle">Verification key</param>
/// <param name="inputStream">Input stream from which data that was signed should be read</param>
/// <param name="signature">Signature</param>
/// <param name="isValid">Flag indicating whether signature is valid</param>
public void Verify(Mechanism mechanism, ObjectHandle keyHandle, Stream inputStream, byte[] signature, out bool isValid)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (signature == null)
throw new ArgumentNullException("signature");
Verify(mechanism, keyHandle, inputStream, signature, out isValid, 4096);
}
/// <summary>
/// Signs single-part data, where the data can be recovered from the signature
/// </summary>
/// <param name="mechanism">Signature mechanism</param>
/// <param name="keyHandle">Signature key</param>
/// <param name="data">Data to be signed</param>
/// <returns>Signature</returns>
public byte[] SignRecover(Mechanism mechanism, ObjectHandle keyHandle, byte[] data)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (data == null)
throw new ArgumentNullException("data");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_SignRecoverInit(_sessionId, ref ckMechanism, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignRecoverInit", rv);
uint signatureLen = 0;
rv = _p11.C_SignRecover(_sessionId, data, Convert.ToUInt32(data.Length), null, ref signatureLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignRecover", rv);
byte[] signature = new byte[signatureLen];
rv = _p11.C_SignRecover(_sessionId, data, Convert.ToUInt32(data.Length), signature, ref signatureLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignRecover", rv);
if (signature.Length != signatureLen)
Array.Resize(ref signature, Convert.ToInt32(signatureLen));
return signature;
}
/// <summary>
/// Signs multi-part data, where the signature is an appendix to the data
/// </summary>
/// <param name="mechanism">Signature mechanism</param>
/// <param name="keyHandle">Signature key</param>
/// <param name="inputStream">Input stream from which data should be read</param>
/// <param name="bufferLength">Size of read buffer in bytes</param>
/// <returns>Signature</returns>
public byte[] Sign(Mechanism mechanism, ObjectHandle keyHandle, Stream inputStream, int bufferLength)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (bufferLength < 1)
throw new ArgumentException("Value has to be positive number", "bufferLength");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_SignInit(_sessionId, ref ckMechanism, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignInit", rv);
byte[] part = new byte[bufferLength];
int bytesRead = 0;
while ((bytesRead = inputStream.Read(part, 0, part.Length)) > 0)
{
rv = _p11.C_SignUpdate(_sessionId, part, Convert.ToUInt32(bytesRead));
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignUpdate", rv);
}
uint signatureLen = 0;
rv = _p11.C_SignFinal(_sessionId, null, ref signatureLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignFinal", rv);
byte[] signature = new byte[signatureLen];
rv = _p11.C_SignFinal(_sessionId, signature, ref signatureLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignFinal", rv);
if (signature.Length != signatureLen)
Array.Resize(ref signature, Convert.ToInt32(signatureLen));
return signature;
}
/// <summary>
/// Signs multi-part data, where the signature is an appendix to the data
/// </summary>
/// <param name="mechanism">Signature mechanism</param>
/// <param name="keyHandle">Signature key</param>
/// <param name="inputStream">Input stream from which data should be read</param>
/// <returns>Signature</returns>
public byte[] Sign(Mechanism mechanism, ObjectHandle keyHandle, Stream inputStream)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
return Sign(mechanism, keyHandle, inputStream, 4096);
}
/// <summary>
/// Generates asymetric key pair.
/// </summary>
/// <param name='session'>Read-write session with user logged in</param>
/// <param name='publicKeyHandle'>Output parameter for public key object handle</param>
/// <param name='privateKeyHandle'>Output parameter for private key object handle</param>
public static void GenerateKeyPair(Session session, out ObjectHandle publicKeyHandle, out ObjectHandle privateKeyHandle)
{
// The CKA_ID attribute is intended as a means of distinguishing multiple key pairs held by the same subject
byte[] ckaId = session.GenerateRandom(20);
// Prepare attribute template of new public key
List<ObjectAttribute> publicKeyAttributes = new List<ObjectAttribute>();
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_TOKEN, true));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_PRIVATE, false));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_LABEL, Settings.ApplicationName));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_ID, ckaId));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_ENCRYPT, true));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_VERIFY, true));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_VERIFY_RECOVER, true));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_WRAP, true));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_MODULUS_BITS, 1024));
publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_PUBLIC_EXPONENT, new byte[] { 0x01, 0x00, 0x01 }));
// Prepare attribute template of new private key
List<ObjectAttribute> privateKeyAttributes = new List<ObjectAttribute>();
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_TOKEN, true));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_PRIVATE, true));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_LABEL, Settings.ApplicationName));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_ID, ckaId));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_SENSITIVE, true));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_DECRYPT, true));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_SIGN, true));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_SIGN_RECOVER, true));
privateKeyAttributes.Add(new ObjectAttribute(CKA.CKA_UNWRAP, true));
// Specify key generation mechanism
Mechanism mechanism = new Mechanism(CKM.CKM_RSA_PKCS_KEY_PAIR_GEN);
// Generate key pair
session.GenerateKeyPair(mechanism, publicKeyAttributes, privateKeyAttributes, out publicKeyHandle, out privateKeyHandle);
}
/// <summary>
/// Verifies signature of data, where the data can be recovered from the signature
/// </summary>
/// <param name="mechanism">Verification mechanism;</param>
/// <param name="keyHandle">Verification key</param>
/// <param name="signature">Signature</param>
/// <param name="isValid">Flag indicating whether signature is valid</param>
/// <returns>Data recovered from the signature</returns>
public byte[] VerifyRecover(Mechanism mechanism, ObjectHandle keyHandle, byte[] signature, out bool isValid)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (signature == null)
throw new ArgumentNullException("signature");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_VerifyRecoverInit(_sessionId, ref ckMechanism, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_VerifyRecoverInit", rv);
uint dataLen = 0;
rv = _p11.C_VerifyRecover(_sessionId, signature, Convert.ToUInt32(signature.Length), null, ref dataLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_VerifyRecover", rv);
byte[] data = new byte[dataLen];
rv = _p11.C_VerifyRecover(_sessionId, signature, Convert.ToUInt32(signature.Length), data, ref dataLen);
if (rv == CKR.CKR_OK)
isValid = true;
else if (rv == CKR.CKR_SIGNATURE_INVALID)
isValid = false;
else
throw new Pkcs11Exception("C_VerifyRecover", rv);
if (data.Length != dataLen)
Array.Resize(ref data, Convert.ToInt32(dataLen));
return data;
}
/// <summary>
/// Decrypts data and verifies a signature of data
/// </summary>
/// <param name="verificationMechanism">Verification mechanism</param>
/// <param name="verificationKeyHandle">Handle of the verification key</param>
/// <param name="decryptionMechanism">Decryption mechanism</param>
/// <param name="decryptionKeyHandle">Handle of the decryption key</param>
/// <param name="inputStream">Input stream from which data to be processed should be read</param>
/// <param name="outputStream">Output stream where decrypted data should be written</param>
/// <param name="signature">Signature</param>
/// <param name="isValid">Flag indicating whether signature is valid</param>
/// <param name="bufferLength">Size of read buffer in bytes</param>
public void DecryptVerify(Mechanism verificationMechanism, ObjectHandle verificationKeyHandle, Mechanism decryptionMechanism, ObjectHandle decryptionKeyHandle, Stream inputStream, Stream outputStream, byte[] signature, out bool isValid, int bufferLength)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (verificationMechanism == null)
throw new ArgumentNullException("verificationMechanism");
if (verificationKeyHandle == null)
throw new ArgumentNullException("verificationKeyHandle");
if (decryptionMechanism == null)
throw new ArgumentNullException("decryptionMechanism");
if (decryptionKeyHandle == null)
throw new ArgumentNullException("decryptionKeyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (outputStream == null)
throw new ArgumentNullException("outputStream");
if (signature == null)
throw new ArgumentNullException("signature");
if (bufferLength < 1)
throw new ArgumentException("Value has to be positive number", "bufferLength");
CK_MECHANISM ckVerificationMechanism = verificationMechanism.CkMechanism;
CKR rv = _p11.C_VerifyInit(_sessionId, ref ckVerificationMechanism, verificationKeyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_VerifyInit", rv);
CK_MECHANISM ckDecryptionMechanism = decryptionMechanism.CkMechanism;
rv = _p11.C_DecryptInit(_sessionId, ref ckDecryptionMechanism, decryptionKeyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptInit", rv);
byte[] encryptedPart = new byte[bufferLength];
byte[] part = new byte[bufferLength];
uint partLen = Convert.ToUInt32(part.Length);
int bytesRead = 0;
while ((bytesRead = inputStream.Read(encryptedPart, 0, encryptedPart.Length)) > 0)
{
partLen = Convert.ToUInt32(part.Length);
rv = _p11.C_DecryptVerifyUpdate(_sessionId, encryptedPart, Convert.ToUInt32(bytesRead), part, ref partLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptVerifyUpdate", rv);
outputStream.Write(part, 0, Convert.ToInt32(partLen));
}
byte[] lastPart = null;
uint lastPartLen = 0;
rv = _p11.C_DecryptFinal(_sessionId, null, ref lastPartLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptFinal", rv);
lastPart = new byte[lastPartLen];
rv = _p11.C_DecryptFinal(_sessionId, lastPart, ref lastPartLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DecryptFinal", rv);
if (lastPartLen > 0)
outputStream.Write(lastPart, 0, Convert.ToInt32(lastPartLen));
rv = _p11.C_VerifyFinal(_sessionId, signature, Convert.ToUInt32(signature.Length));
if (rv == CKR.CKR_OK)
isValid = true;
else if (rv == CKR.CKR_SIGNATURE_INVALID)
isValid = false;
else
throw new Pkcs11Exception("C_VerifyFinal", rv);
}
/// <summary>
/// Digests and decrypts data
/// </summary>
/// <param name="digestingMechanism">Digesting mechanism</param>
/// <param name="decryptionMechanism">Decryption mechanism</param>
/// <param name="keyHandle">Handle of the decryption key</param>
/// <param name="data">Data to be processed</param>
/// <param name="digest">Digest</param>
/// <param name="decryptedData">Decrypted data</param>
public void DecryptDigest(Mechanism digestingMechanism, Mechanism decryptionMechanism, ObjectHandle keyHandle, byte[] data, out byte[] digest, out byte[] decryptedData)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (digestingMechanism == null)
throw new ArgumentNullException("digestingMechanism");
if (decryptionMechanism == null)
throw new ArgumentNullException("decryptionMechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (data == null)
throw new ArgumentNullException("data");
using (MemoryStream inputMemoryStream = new MemoryStream(data), outputMemorySteam = new MemoryStream())
{
digest = DecryptDigest(digestingMechanism, decryptionMechanism, keyHandle, inputMemoryStream, outputMemorySteam);
decryptedData = outputMemorySteam.ToArray();
}
}
/// <summary>
/// Wraps (i.e., encrypts) a private or secret key
/// </summary>
/// <param name="mechanism">Wrapping mechanism</param>
/// <param name="wrappingKeyHandle">Handle of wrapping key</param>
/// <param name="keyHandle">Handle of key to be wrapped</param>
/// <returns>Wrapped key</returns>
public byte[] WrapKey(Mechanism mechanism, ObjectHandle wrappingKeyHandle, ObjectHandle keyHandle)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (wrappingKeyHandle == null)
throw new ArgumentNullException("wrappingKeyHandle");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
uint wrappedKeyLen = 0;
CKR rv = _p11.C_WrapKey(_sessionId, ref ckMechanism, wrappingKeyHandle.ObjectId, keyHandle.ObjectId, null, ref wrappedKeyLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_WrapKey", rv);
byte[] wrappedKey = new byte[wrappedKeyLen];
rv = _p11.C_WrapKey(_sessionId, ref ckMechanism, wrappingKeyHandle.ObjectId, keyHandle.ObjectId, wrappedKey, ref wrappedKeyLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_WrapKey", rv);
if (wrappedKey.Length != wrappedKeyLen)
Array.Resize(ref wrappedKey, Convert.ToInt32(wrappedKeyLen));
return wrappedKey;
}
/// <summary>
/// Digests and decrypts data
/// </summary>
/// <param name="digestingMechanism">Digesting mechanism</param>
/// <param name="decryptionMechanism">Decryption mechanism</param>
/// <param name="keyHandle">Handle of the decryption key</param>
/// <param name="inputStream">Input stream from which data to be processed should be read</param>
/// <param name="outputStream">Output stream where decrypted data should be written</param>
/// <returns>Digest</returns>
public byte[] DecryptDigest(Mechanism digestingMechanism, Mechanism decryptionMechanism, ObjectHandle keyHandle, Stream inputStream, Stream outputStream)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (digestingMechanism == null)
throw new ArgumentNullException("digestingMechanism");
if (decryptionMechanism == null)
throw new ArgumentNullException("decryptionMechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (outputStream == null)
throw new ArgumentNullException("outputStream");
return DecryptDigest(digestingMechanism, decryptionMechanism, keyHandle, inputStream, outputStream, 4096);
}
/// <summary>
/// Restores the cryptographic operations state of a session from an array of bytes obtained with GetOperationState
/// </summary>
/// <param name="state">Array of bytes obtained with GetOperationState</param>
/// <param name="encryptionKey">CK_INVALID_HANDLE or handle to the key which will be used for an ongoing encryption or decryption operation in the restored session</param>
/// <param name="authenticationKey">CK_INVALID_HANDLE or handle to the key which will be used for an ongoing signature, MACing, or verification operation in the restored session</param>
public void SetOperationState(byte[] state, ObjectHandle encryptionKey, ObjectHandle authenticationKey)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (state == null)
throw new ArgumentNullException("state");
if (encryptionKey == null)
throw new ArgumentNullException("encryptionKey");
if (authenticationKey == null)
throw new ArgumentNullException("authenticationKey");
CKR rv = _p11.C_SetOperationState(_sessionId, state, Convert.ToUInt32(state.Length), encryptionKey.ObjectId, authenticationKey.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SetOperationState", rv);
}
/// <summary>
/// Signs and encrypts data
/// </summary>
/// <param name="signingMechanism">Signing mechanism</param>
/// <param name="signingKeyHandle">Handle of the signing key</param>
/// <param name="encryptionMechanism">Encryption mechanism</param>
/// <param name="encryptionKeyHandle">Handle of the encryption key</param>
/// <param name="data">Data to be processed</param>
/// <param name="signature">Signature</param>
/// <param name="encryptedData">Encrypted data</param>
public void SignEncrypt(Mechanism signingMechanism, ObjectHandle signingKeyHandle, Mechanism encryptionMechanism, ObjectHandle encryptionKeyHandle, byte[] data, out byte[] signature, out byte[] encryptedData)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (signingMechanism == null)
throw new ArgumentNullException("signingMechanism");
if (signingKeyHandle == null)
throw new ArgumentNullException("signingKeyHandle");
if (encryptionMechanism == null)
throw new ArgumentNullException("encryptionMechanism");
if (encryptionKeyHandle == null)
throw new ArgumentNullException("encryptionKeyHandle");
if (data == null)
throw new ArgumentNullException("data");
using (MemoryStream inputMemoryStream = new MemoryStream(data), outputMemorySteam = new MemoryStream())
{
signature = SignEncrypt(signingMechanism, signingKeyHandle, encryptionMechanism, encryptionKeyHandle, inputMemoryStream, outputMemorySteam);
encryptedData = outputMemorySteam.ToArray();
}
}
/// <summary>
/// Destroys an object
/// </summary>
/// <param name="objectHandle">Handle of object to be destroyed</param>
public void DestroyObject(ObjectHandle objectHandle)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (objectHandle == null)
throw new ArgumentNullException("objectHandle");
CKR rv = _p11.C_DestroyObject(_sessionId, objectHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DestroyObject", rv);
}
/// <summary>
/// Signs and encrypts data
/// </summary>
/// <param name="signingMechanism">Signing mechanism</param>
/// <param name="signingKeyHandle">Handle of the signing key</param>
/// <param name="encryptionMechanism">Encryption mechanism</param>
/// <param name="encryptionKeyHandle">Handle of the encryption key</param>
/// <param name="inputStream">Input stream from which data to be processed should be read</param>
/// <param name="outputStream">Output stream where encrypted data should be written</param>
/// <returns>Signature</returns>
public byte[] SignEncrypt(Mechanism signingMechanism, ObjectHandle signingKeyHandle, Mechanism encryptionMechanism, ObjectHandle encryptionKeyHandle, Stream inputStream, Stream outputStream)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (signingMechanism == null)
throw new ArgumentNullException("signingMechanism");
if (signingKeyHandle == null)
throw new ArgumentNullException("signingKeyHandle");
if (encryptionMechanism == null)
throw new ArgumentNullException("encryptionMechanism");
if (encryptionKeyHandle == null)
throw new ArgumentNullException("encryptionKeyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (outputStream == null)
throw new ArgumentNullException("outputStream");
return SignEncrypt(signingMechanism, signingKeyHandle, encryptionMechanism, encryptionKeyHandle, inputStream, outputStream, 4096);
}
/// <summary>
/// Obtains the value of one or more attributes of an object
/// </summary>
/// <param name="objectHandle">Handle of object whose attributes should be read</param>
/// <param name="attributes">List of attributes that should be read</param>
/// <returns>Object attributes</returns>
public List<ObjectAttribute> GetAttributeValue(ObjectHandle objectHandle, List<CKA> attributes)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (objectHandle == null)
throw new ArgumentNullException("objectHandle");
if (attributes == null)
throw new ArgumentNullException("attributes");
if (attributes.Count < 1)
throw new ArgumentException("No attributes specified", "attributes");
List<uint> uintAttributes = new List<uint>();
foreach (CKA attribute in attributes)
uintAttributes.Add((uint)attribute);
return GetAttributeValue(objectHandle, uintAttributes);
}
/// <summary>
/// Signs and encrypts data
/// </summary>
/// <param name="signingMechanism">Signing mechanism</param>
/// <param name="signingKeyHandle">Handle of the signing key</param>
/// <param name="encryptionMechanism">Encryption mechanism</param>
/// <param name="encryptionKeyHandle">Handle of the encryption key</param>
/// <param name="inputStream">Input stream from which data to be processed should be read</param>
/// <param name="outputStream">Output stream where encrypted data should be written</param>
/// <param name="bufferLength">Size of read buffer in bytes</param>
/// <returns>Signature</returns>
public byte[] SignEncrypt(Mechanism signingMechanism, ObjectHandle signingKeyHandle, Mechanism encryptionMechanism, ObjectHandle encryptionKeyHandle, Stream inputStream, Stream outputStream, int bufferLength)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (signingMechanism == null)
throw new ArgumentNullException("signingMechanism");
if (signingKeyHandle == null)
throw new ArgumentNullException("signingKeyHandle");
if (encryptionMechanism == null)
throw new ArgumentNullException("encryptionMechanism");
if (encryptionKeyHandle == null)
throw new ArgumentNullException("encryptionKeyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (outputStream == null)
throw new ArgumentNullException("outputStream");
if (bufferLength < 1)
throw new ArgumentException("Value has to be positive number", "bufferLength");
CK_MECHANISM ckSigningMechanism = signingMechanism.CkMechanism;
CKR rv = _p11.C_SignInit(_sessionId, ref ckSigningMechanism, signingKeyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignInit", rv);
CK_MECHANISM ckEncryptionMechanism = encryptionMechanism.CkMechanism;
rv = _p11.C_EncryptInit(_sessionId, ref ckEncryptionMechanism, encryptionKeyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_EncryptInit", rv);
byte[] part = new byte[bufferLength];
byte[] encryptedPart = new byte[bufferLength];
uint encryptedPartLen = Convert.ToUInt32(encryptedPart.Length);
int bytesRead = 0;
while ((bytesRead = inputStream.Read(part, 0, part.Length)) > 0)
{
encryptedPartLen = Convert.ToUInt32(encryptedPart.Length);
rv = _p11.C_SignEncryptUpdate(_sessionId, part, Convert.ToUInt32(bytesRead), encryptedPart, ref encryptedPartLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignEncryptUpdate", rv);
outputStream.Write(encryptedPart, 0, Convert.ToInt32(encryptedPartLen));
}
byte[] lastEncryptedPart = null;
uint lastEncryptedPartLen = 0;
rv = _p11.C_EncryptFinal(_sessionId, null, ref lastEncryptedPartLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_EncryptFinal", rv);
lastEncryptedPart = new byte[lastEncryptedPartLen];
rv = _p11.C_EncryptFinal(_sessionId, lastEncryptedPart, ref lastEncryptedPartLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_EncryptFinal", rv);
if (lastEncryptedPartLen > 0)
outputStream.Write(lastEncryptedPart, 0, Convert.ToInt32(lastEncryptedPartLen));
uint signatureLen = 0;
rv = _p11.C_SignFinal(_sessionId, null, ref signatureLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignFinal", rv);
byte[] signature = new byte[signatureLen];
rv = _p11.C_SignFinal(_sessionId, signature, ref signatureLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SignFinal", rv);
if (signature.Length != signatureLen)
Array.Resize(ref signature, Convert.ToInt32(signatureLen));
return signature;
}
/// <summary>
/// Modifies the value of one or more attributes of an object
/// </summary>
/// <param name="objectHandle">Handle of object whose attributes should be modified</param>
/// <param name="attributes">List of attributes that should be modified</param>
public void SetAttributeValue(ObjectHandle objectHandle, List<ObjectAttribute> attributes)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (objectHandle == null)
throw new ArgumentNullException("objectHandle");
if (attributes == null)
throw new ArgumentNullException("attributes");
if (attributes.Count < 1)
throw new ArgumentException("No attributes specified", "attributes");
CK_ATTRIBUTE[] template = new CK_ATTRIBUTE[attributes.Count];
for (int i = 0; i < attributes.Count; i++)
template[i] = attributes[i].CkAttribute;
CKR rv = _p11.C_SetAttributeValue(_sessionId, objectHandle.ObjectId, template, Convert.ToUInt32(template.Length));
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_SetAttributeValue", rv);
}
/// <summary>
/// Decrypts data and verifies a signature of data
/// </summary>
/// <param name="verificationMechanism">Verification mechanism</param>
/// <param name="verificationKeyHandle">Handle of the verification key</param>
/// <param name="decryptionMechanism">Decryption mechanism</param>
/// <param name="decryptionKeyHandle">Handle of the decryption key</param>
/// <param name="data">Data to be processed</param>
/// <param name="signature">Signature</param>
/// <param name="decryptedData">Decrypted data</param>
/// <param name="isValid">Flag indicating whether signature is valid</param>
public void DecryptVerify(Mechanism verificationMechanism, ObjectHandle verificationKeyHandle, Mechanism decryptionMechanism, ObjectHandle decryptionKeyHandle, byte[] data, byte[] signature, out byte[] decryptedData, out bool isValid)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (verificationMechanism == null)
throw new ArgumentNullException("verificationMechanism");
if (verificationKeyHandle == null)
throw new ArgumentNullException("verificationKeyHandle");
if (decryptionMechanism == null)
throw new ArgumentNullException("decryptionMechanism");
if (decryptionKeyHandle == null)
throw new ArgumentNullException("decryptionKeyHandle");
if (data == null)
throw new ArgumentNullException("data");
if (signature == null)
throw new ArgumentNullException("signature");
using (MemoryStream inputMemoryStream = new MemoryStream(data), outputMemorySteam = new MemoryStream())
{
DecryptVerify(verificationMechanism, verificationKeyHandle, decryptionMechanism, decryptionKeyHandle, inputMemoryStream, outputMemorySteam, signature, out isValid);
decryptedData = outputMemorySteam.ToArray();
}
}
/// <summary>
/// Decrypts multi-part data
/// </summary>
/// <param name="mechanism">Decryption mechanism</param>
/// <param name="keyHandle">Handle of the decryption key</param>
/// <param name="inputStream">Input stream from which encrypted data should be read</param>
/// <param name="outputStream">Output stream where decrypted data should be written</param>
public void Decrypt(Mechanism mechanism, ObjectHandle keyHandle, Stream inputStream, Stream outputStream)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (outputStream == null)
throw new ArgumentNullException("outputStream");
Decrypt(mechanism, keyHandle, inputStream, outputStream, 4096);
}
/// <summary>
/// Decrypts data and verifies a signature of data
/// </summary>
/// <param name="verificationMechanism">Verification mechanism</param>
/// <param name="verificationKeyHandle">Handle of the verification key</param>
/// <param name="decryptionMechanism">Decryption mechanism</param>
/// <param name="decryptionKeyHandle">Handle of the decryption key</param>
/// <param name="inputStream">Input stream from which data to be processed should be read</param>
/// <param name="outputStream">Output stream where decrypted data should be written</param>
/// <param name="signature">Signature</param>
/// <param name="isValid">Flag indicating whether signature is valid</param>
public void DecryptVerify(Mechanism verificationMechanism, ObjectHandle verificationKeyHandle, Mechanism decryptionMechanism, ObjectHandle decryptionKeyHandle, Stream inputStream, Stream outputStream, byte[] signature, out bool isValid)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (verificationMechanism == null)
throw new ArgumentNullException("verificationMechanism");
if (verificationKeyHandle == null)
throw new ArgumentNullException("verificationKeyHandle");
if (decryptionMechanism == null)
throw new ArgumentNullException("decryptionMechanism");
if (decryptionKeyHandle == null)
throw new ArgumentNullException("decryptionKeyHandle");
if (inputStream == null)
throw new ArgumentNullException("inputStream");
if (outputStream == null)
throw new ArgumentNullException("outputStream");
if (signature == null)
throw new ArgumentNullException("signature");
DecryptVerify(verificationMechanism, verificationKeyHandle, decryptionMechanism, decryptionKeyHandle, inputStream, outputStream, signature, out isValid, 4096);
}
/// <summary>
/// Digests the value of a secret key
/// </summary>
/// <param name="mechanism">Digesting mechanism</param>
/// <param name="keyHandle">Handle of the secret key to be digested</param>
/// <returns>Digest</returns>
public byte[] DigestKey(Mechanism mechanism, ObjectHandle keyHandle)
{
if (this._disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (mechanism == null)
throw new ArgumentNullException("mechanism");
if (keyHandle == null)
throw new ArgumentNullException("keyHandle");
CK_MECHANISM ckMechanism = mechanism.CkMechanism;
CKR rv = _p11.C_DigestInit(_sessionId, ref ckMechanism);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DigestInit", rv);
rv = _p11.C_DigestKey(_sessionId, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DigestKey", rv);
uint digestLen = 0;
rv = _p11.C_DigestFinal(_sessionId, null, ref digestLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DigestFinal", rv);
byte[] digest = new byte[digestLen];
rv = _p11.C_DigestFinal(_sessionId, digest, ref digestLen);
if (rv != CKR.CKR_OK)
throw new Pkcs11Exception("C_DigestFinal", rv);
if (digest.Length != digestLen)
Array.Resize(ref digest, Convert.ToInt32(digestLen));
return digest;
}
/// <summary>
/// Signs single-part data, where the signature is an appendix to the data
/// </summary>
/// <param name="session">Instance of the extended class</param>
/// <param name="mechanism">Signature mechanism</param>
/// <param name="keyHandle">Signature key</param>
/// <param name="data">Data to be signed</param>
/// <param name="pin">Pin of user</param>
/// <returns>Signature</returns>
public static byte[] Sign(this HLA41.Session session, HLA41.Mechanism mechanism, HLA41.ObjectHandle keyHandle, byte[] data, byte[] pin)
{
if (session.Disposed)
{
throw new ObjectDisposedException(session.GetType().FullName);
}
if (mechanism == null)
{
throw new ArgumentNullException("mechanism");
}
if (keyHandle == null)
{
throw new ArgumentNullException("keyHandle");
}
if (data == null)
{
throw new ArgumentNullException("data");
}
byte[] pinValue = null;
uint pinValueLen = 0;
if (pin != null)
{
pinValue = pin;
pinValueLen = Convert.ToUInt32(pin.Length);
}
var ckMechanism40 = (LLA41.CK_MECHANISM) typeof(HLA41.Mechanism).GetField("_ckMechanism", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(mechanism);
CKR rv = session.LowLevelPkcs11.C_SignInit(session.SessionId, ref ckMechanism40, keyHandle.ObjectId);
if (rv != CKR.CKR_OK)
{
throw new Pkcs11Exception("C_SignInit", rv);
}
rv = session.LowLevelPkcs11.C_Login(session.SessionId, CKU.CKU_CONTEXT_SPECIFIC, pinValue, pinValueLen);
if (rv != CKR.CKR_OK)
{
throw new Pkcs11Exception("C_Login", rv);
}
uint signatureLen = 0;
rv = session.LowLevelPkcs11.C_Sign(session.SessionId, data, Convert.ToUInt32(data.Length), null, ref signatureLen);
if (rv != CKR.CKR_OK)
{
throw new Pkcs11Exception("C_Sign", rv);
}
byte[] signature = new byte[signatureLen];
rv = session.LowLevelPkcs11.C_Sign(session.SessionId, data, Convert.ToUInt32(data.Length), signature, ref signatureLen);
if (rv != CKR.CKR_OK)
{
throw new Pkcs11Exception("C_Sign", rv);
}
if (signature.Length != signatureLen)
{
Array.Resize(ref signature, Convert.ToInt32(signatureLen));
}
return(signature);
}