private void FillBuffer()
{
m_current_block_length = m_view.Read(m_current_block_position, m_current_block, 0, (uint)BlockLength);
for (int offset = 0; offset < m_current_block_length; offset += 0x10)
{
m_enc.DecryptBlock(m_current_block_position + offset, m_current_block, offset);
}
}
public void DecryptIntermediate128BitKey() // working 11/20/2018 11:35 AM
{
byte[] P = new byte[] { 0x67, 0x67, 0x31, 0x38, 0x54, 0x96, 0x69, 0x73, 0x08, 0x57, 0x06, 0x56, 0x48, 0xea, 0xbe, 0x43 };
byte[] K = new byte[] { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
byte[] result = Camellia.DecryptBlock(P, K);
Assert.IsTrue(compareArrays(result,
new byte[16] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
}, out int FirstDiff));
}
public void DecryptIntermediate192BitKey() // working 11/20/2018 11:35 AM
{
byte[] P = new byte[16] {
0xb4, 0x99, 0x34, 0x01, 0xb3, 0xe9, 0x96, 0xf8, 0x4e, 0xe5, 0xce, 0xe7, 0xd7, 0x9b, 0x09, 0xb9
};
byte[] K = new byte[24] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77
};
byte[] result = Camellia.DecryptBlock(P, K);
Assert.IsTrue(compareArrays(result,
new byte[16] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
}, out int FirstDiff));
}
public void DecryptIntermediate256BitKey() // working 11/20/2018 11:35 AM
{
byte[] P = new byte[16] {
0x9a, 0xcc, 0x23, 0x7d, 0xff, 0x16, 0xd7, 0x6c, 0x20, 0xef, 0x7c, 0x91, 0x9e, 0x3a, 0x75, 0x09
};
byte[] K = new byte[32] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff
};
byte[] result = Camellia.DecryptBlock(P, K);
Assert.IsTrue(compareArrays(result,
new byte[16] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
}, out int FirstDiff));
}
private static int ReadEncrypted(ArcView.Frame view, Camellia enc, long offset, byte[] buffer, int index, int length)
{
int offset_pad = (int)offset & 0xF;
int aligned_len = (offset_pad + length + 0xF) & ~0xF;
byte[] aligned_buf;
int block = 0;
if (aligned_len == length)
{
aligned_buf = buffer;
block = index;
}
else
{
aligned_buf = new byte[aligned_len];
}
int read = view.Read(offset - offset_pad, aligned_buf, block, (uint)aligned_len);
if (read < offset_pad)
{
return(0);
}
for (int block_count = aligned_len / 0x10; block_count > 0; --block_count)
{
enc.DecryptBlock(offset, aligned_buf, block);
block += 0x10;
offset += 0x10;
}
if (aligned_buf != buffer)
{
Buffer.BlockCopy(aligned_buf, offset_pad, buffer, index, length);
}
return(Math.Min(length, read - offset_pad));
}
public void DecryptBlock(long block_offset, byte[] buffer, int index)
{
m_enc.DecryptBlock(block_offset, buffer, index);
}
private static int ReadEncrypted(ArcView.Frame view, Camellia enc, long offset, byte[] buffer, int index, int length)
{
int offset_pad = (int)offset & 0xF;
int aligned_len = (offset_pad + length + 0xF) & ~0xF;
byte[] aligned_buf;
int block = 0;
if (aligned_len == length)
{
aligned_buf = buffer;
block = index;
}
else
{
aligned_buf = new byte[aligned_len];
}
int read = view.Read (offset - offset_pad, aligned_buf, block, (uint)aligned_len);
if (read < offset_pad)
return 0;
for (int block_count = aligned_len / 0x10; block_count > 0; --block_count)
{
enc.DecryptBlock (offset, aligned_buf, block);
block += 0x10;
offset += 0x10;
}
if (aligned_buf != buffer)
Buffer.BlockCopy (aligned_buf, offset_pad, buffer, index, length);
return Math.Min (length, read-offset_pad);
}
public void Decrypt_Exception_InvalidKeyLength() // working 11/20/2018 11:35 AM
{
Camellia.DecryptBlock(new byte[16], new byte[1]);
Assert.Fail("Did not throw exception");
}
public void Decrypt_Exception_NullKey() // working 11/20/2018 11:35 AM
{
Camellia.DecryptBlock(new byte[16], null);
Assert.Fail("Did not throw exception");
}
static void Main(string[] args)
{
if (!Camellia.RunSelfTests())
{
//throw new Exception("FAILED TEST");
Console.WriteLine("*** SELFTEST FAILED****");
}
else
{
Console.WriteLine("SELF TEST OK!");
}
byte[] P = new byte[] { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
byte[] K1 = new byte[16] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
};
byte[] K2 = new byte[24] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77
};
byte[] K3 = new byte[32] {
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff
};
byte[] result; int FirstDiff;
result = Camellia.EncryptBlock(P, K1);
if (!compareArrays(result, new byte[] { 0x67, 0x67, 0x31, 0x38, 0x54, 0x96, 0x69, 0x73, 0x08, 0x57, 0x06, 0x56, 0x48, 0xea, 0xbe, 0x43 }, out FirstDiff))
{
//throw new Exception("FAILED TEST");
Console.WriteLine("*** TEST 1 FAILED****");
}
else
{
Console.WriteLine("FULL ENCRYPTION TEST 1 OK!");
}
result = Camellia.DecryptBlock(result, K1);
if (!compareArrays(result, P, out FirstDiff))
{
//throw new Exception("FAILED TEST");
Console.WriteLine("*** TEST 1 FAILED****");
}
else
{
Console.WriteLine("FULL DECRYPTION TEST 1 OK!");
}
result = Camellia.EncryptBlock(P, K2);
if (!compareArrays(result, new byte[] { 0xb4, 0x99, 0x34, 0x01, 0xb3, 0xe9, 0x96, 0xf8, 0x4e, 0xe5, 0xce, 0xe7, 0xd7, 0x9b, 0x09, 0xb9 }, out FirstDiff))
{
//throw new Exception("FAILED TEST");
Console.WriteLine("*** TEST 2 FAILED ****");
}
else
{
Console.WriteLine("FULL ENCRYPTION TEST 2 OK!");
}
result = Camellia.DecryptBlock(result, K2);
if (!compareArrays(result, P, out FirstDiff))
{
//throw new Exception("FAILED TEST");
Console.WriteLine("*** TEST 2 FAILED****");
}
else
{
Console.WriteLine("FULL DECRYPTION TEST 2 OK!");
}
result = Camellia.EncryptBlock(P, K3);
if (!compareArrays(result, new byte[] { 0x9a, 0xcc, 0x23, 0x7d, 0xff, 0x16, 0xd7, 0x6c, 0x20, 0xef, 0x7c, 0x91, 0x9e, 0x3a, 0x75, 0x09 }, out FirstDiff))
{
//throw new Exception("FAILED TEST");
Console.WriteLine("*** TEST 3 FAILED ****");
}
else
{
Console.WriteLine("FULL ENCRYPTION TEST 3 OK!");
}
result = Camellia.DecryptBlock(result, K3);
if (!compareArrays(result, P, out FirstDiff))
{
//throw new Exception("FAILED TEST");
Console.WriteLine("*** TEST 3 FAILED****");
}
else
{
Console.WriteLine("FULL DECRYPTION TEST 3 OK!");
}
Console.WriteLine("Press ENTER to quit...");
Console.ReadLine();
}