/// <summary>
/// The Equals method determines whether the specified System.Object is equal to the current System.Object.
/// </summary>
public override bool Equals(object obj)
{
if (obj.GetType() != typeof(SplitArray))
{
return(false);
}
SplitArray value = (SplitArray)obj;
return(Utility.CompareArrays(this.FirstArray(), value.FirstArray()) &&
Utility.CompareArrays(this.SecondArray(), value.SecondArray()));
}
/// <summary>
/// Initialize the <see cref="DerivedKeys"/> instance with the passphrase, the
/// IV and the salt.
/// </summary>
/// <param name="passphrase">User passprhase</param>
/// <param name="algorithm">See <see cref="SymmetricAlgorithm"/>.</param>
/// <param name="packedData">The packed data (salt+data) bytes.</param>
public DerivedKeys(string passphrase, SymmetricAlgorithm algorithm, ref byte[] packedData)
{
//Extract salt from packedKeys
SplitArray unpacked = Utility.SplitArrays(packedData, algorithm.KeySize >> 3);
_salt = unpacked.FirstArray();
// Pin the keys in memory to prevents the garbage collector from moving the
// object and hence undermines the efficiency of the garbage collector
// threfore, we should call dispose after using these keys.
PinKeys(passphrase, algorithm.BlockSize >> 3);
// Return clean data blob
packedData = unpacked.SecondArray();
}
/// <summary>
/// Compares two byte arrays.
/// </summary>
/// <param name="value">The <see cref="SplitArray"/> containing the two arrays to compare.</param>
/// <returns>True if the arrays are equals; false otherwise.</returns>
public static bool CompareArrays(SplitArray value)
{
return(CompareArrays(value.FirstArray(), value.SecondArray()));
}
/// <summary>
/// Joins two arrays into one.
/// </summary>
/// <param name="value">The <see cref="SplitArray"/> containing the two arrays to join</param>
/// <returns>The union of the two arrays.</returns>
/// <exception cref="ArgumentNullException">The specified parameter is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentOutOfRangeException">The lenght of the two arrays is gretar thant the <see cref="int.MaxValue"/>.</exception>
public static byte[] JoinArrays(SplitArray value)
{
return(JoinArrays(value.FirstArray(), value.SecondArray()));
}