Net.Pkcs11Interop.HighLevelAPI81.Session.SignRecover C# (CSharp) Method

        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);

            ulong signatureLen = 0;
            rv = _p11.C_SignRecover(_sessionId, data, Convert.ToUInt64(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.ToUInt64(data.Length), signature, ref signatureLen);
            if (rv != CKR.CKR_OK)
                throw new Pkcs11Exception("C_SignRecover", rv);

            if (signature.Length != Convert.ToInt32(signatureLen))
                Array.Resize(ref signature, Convert.ToInt32(signatureLen));

            return signature;
        }