public static void ComputeKey(byte[] key, byte[] salt, int iterations,
ComputeHmacCallback computeHmacCallback, int hmacLength, byte[] output)
{
using (Pbkdf2 kdf = new Pbkdf2
(key, salt, iterations, computeHmacCallback, hmacLength)) {
kdf.Read(output);
}
}
public void Reopen(byte[] key, byte[] salt, int iterations,
ComputeHmacCallback computeHmacCallback, int hmacLength)
{
Helper.CheckNull("key", key);
Helper.CheckNull("salt", salt);
Helper.CheckNull("computeHmacCallback", computeHmacCallback);
Helper.CheckRange("salt", salt, 0, int.MaxValue - 4);
Helper.CheckRange("iterations", iterations, 1, int.MaxValue);
Helper.CheckRange("hmacLength", hmacLength, 1, int.MaxValue);
_key = new byte[key.Length]; Array.Copy(key, _key, key.Length);
_saltBuf = new byte[salt.Length + 4]; Array.Copy(salt, _saltBuf, salt.Length);
_iterations = iterations; _computeHmacCallback = computeHmacCallback;
_block = new byte[hmacLength]; _blockT1 = new byte[hmacLength]; _blockT2 = new byte[hmacLength];
ReopenStream();
}
public Pbkdf2(byte[] key, byte[] salt, int iterations,
ComputeHmacCallback computeHmacCallback, int hmacLength)
{
Reopen(key, salt, iterations, computeHmacCallback, hmacLength);
}
public Pbkdf2(byte[] key, byte[] salt, int iterations,
ComputeHmacCallback computeHmacCallback, int hmacLength)
{
Reopen(key, salt, iterations, computeHmacCallback, hmacLength);
}
public void Reopen(byte[] key, byte[] salt, int iterations,
ComputeHmacCallback computeHmacCallback, int hmacLength)
{
Helper.CheckNull("key", key);
Helper.CheckNull("salt", salt);
Helper.CheckNull("computeHmacCallback", computeHmacCallback);
Helper.CheckRange("salt", salt, 0, int.MaxValue - 4);
Helper.CheckRange("iterations", iterations, 1, int.MaxValue);
Helper.CheckRange("hmacLength", hmacLength, 1, int.MaxValue);
_key = new byte[key.Length];
Array.Copy(key, _key, key.Length);
_saltBuf = new byte[salt.Length + 4];
Array.Copy(salt, _saltBuf, salt.Length);
_iterations = iterations;
_computeHmacCallback = computeHmacCallback;
_block = new byte[hmacLength];
_blockT1 = new byte[hmacLength];
_blockT2 = new byte[hmacLength];
ReopenStream();
}
public static void ComputeKey(byte[] key, byte[] salt, int iterations,
ComputeHmacCallback computeHmacCallback, int hmacLength, byte[] output)
{
using (Pbkdf2 kdf = new Pbkdf2(key, salt, iterations, computeHmacCallback, hmacLength))
{
kdf.Read(output);
}
}
