/// <summary>
/// Generates a random symmetric key for use in the signing process.
/// </summary>
/// <param name="keySize">Size of the symmetric key in bits</param>
private void GenerateKey(int keySize)
{
CryptokiAttribute[] attribs = new CryptokiAttribute[]
{
new CryptokiAttribute(CryptokiAttribute.CryptokiType.ValueLen, Utility.ConvertToBytes(keySize))
};
KeyValue = CryptoKey.GenerateKey(m_session, new Mechanism(MechanismType.GENERIC_SECRET_KEY_GEN), attribs);
OwnsKey = true;
m_mechanism.Parameter = KeyValue.Handle;
Initialize();
}
/// <summary>
/// Generates a random key to use for the algorithm.
/// </summary>
public override void GenerateKey()
{
CryptoKey key;
Mechanism mech = new Mechanism(Microsoft.SPOT.Cryptoki.MechanismType.AES_KEY_GEN);
CryptokiAttribute[] attribs = new CryptokiAttribute[]
{
new CryptokiAttribute(CryptokiAttribute.CryptokiType.ValueLen, Utility.ConvertToBytes(KeySizeValue))
};
key = CryptoKey.GenerateKey(m_session, mech, attribs);
if (KeyValue != null && OwnsKey)
{
KeyValue.Dispose();
}
KeyValue = key;
OwnsKey = true;
}