IC172Algo1,2 : remove mixed indents

This commit is contained in:
JinGen Lim 2021-11-08 18:00:19 +08:00
parent 217580bd19
commit 9cfd358674
2 changed files with 372 additions and 372 deletions

View File

@ -9,72 +9,72 @@ namespace UnlockECU
/// <summary>
/// IC172 Level 7 (Experimental)
/// Originally discovered by Sergey (@Feezex) at https://github.com/jglim/UnlockECU/issues/2#issuecomment-962647700
/// Key pool, transposition table and suffix may be moved into db.json in the future if this algo is reused elsewhere
/// Key pool, transposition table and suffix may be moved into db.json in the future if this algo is reused elsewhere
/// </summary>
class IC172Algo1 : SecurityProvider
{
public override bool GenerateKey(byte[] inSeed, byte[] outKey, int accessLevel, List<Parameter> parameters)
{
if ((inSeed.Length != 8) || (outKey.Length != 8))
{
return false;
}
{
if ((inSeed.Length != 8) || (outKey.Length != 8))
{
return false;
}
byte[] seedInput = new byte[] { inSeed[0], inSeed[2], inSeed[4], inSeed[6] };
seedInput = ExpandByteArrayToNibbles(seedInput);
byte[] seedInput = new byte[] { inSeed[0], inSeed[2], inSeed[4], inSeed[6] };
seedInput = ExpandByteArrayToNibbles(seedInput);
List<byte[]> keyPool = new List<byte[]>();
keyPool.Add(new byte[] { 0xEF, 0xCD, 0xAB, 0x89, 0x67, 0x45, 0x23, 0x01 });
keyPool.Add(new byte[] { 0x45, 0x67, 0x01, 0x23, 0xCD, 0xEF, 0x89, 0xAB });
keyPool.Add(new byte[] { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF });
keyPool.Add(new byte[] { 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23, 0x45, 0x67 });
keyPool.Add(new byte[] { 0x54, 0x76, 0x10, 0x32, 0xDC, 0xFE, 0x98, 0xBA });
keyPool.Add(new byte[] { 0xEF, 0xCD, 0xAB, 0x89, 0x67, 0x45, 0x23, 0x01 });
keyPool.Add(new byte[] { 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23, 0x45, 0x67 });
keyPool.Add(new byte[] { 0xBA, 0x98, 0xFE, 0xDC, 0x32, 0x10, 0x76, 0x54 });
List<byte[]> keyPool = new List<byte[]>();
keyPool.Add(new byte[] { 0xEF, 0xCD, 0xAB, 0x89, 0x67, 0x45, 0x23, 0x01 });
keyPool.Add(new byte[] { 0x45, 0x67, 0x01, 0x23, 0xCD, 0xEF, 0x89, 0xAB });
keyPool.Add(new byte[] { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF });
keyPool.Add(new byte[] { 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23, 0x45, 0x67 });
keyPool.Add(new byte[] { 0x54, 0x76, 0x10, 0x32, 0xDC, 0xFE, 0x98, 0xBA });
keyPool.Add(new byte[] { 0xEF, 0xCD, 0xAB, 0x89, 0x67, 0x45, 0x23, 0x01 });
keyPool.Add(new byte[] { 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23, 0x45, 0x67 });
keyPool.Add(new byte[] { 0xBA, 0x98, 0xFE, 0xDC, 0x32, 0x10, 0x76, 0x54 });
byte[] transpositionTable = new byte[] { 5, 2, 7, 4, 1, 6, 3, 0 };
byte[] intermediateKey = new byte[8];
byte[] transpositionTable = new byte[] { 5, 2, 7, 4, 1, 6, 3, 0 };
byte[] intermediateKey = new byte[8];
for (int i = 0; i < transpositionTable.Length; i++)
{
intermediateKey[i] = ExpandByteArrayToNibbles(keyPool[i])[seedInput[transpositionTable[i]]];
}
for (int i = 0; i < transpositionTable.Length; i++)
{
intermediateKey[i] = ExpandByteArrayToNibbles(keyPool[i])[seedInput[transpositionTable[i]]];
}
byte[] suffix = { 0x57, 0x49, 0x4C, 0x59 };
byte[] assembledKey = CollapseByteArrayFromNibbles(intermediateKey);
Array.ConstrainedCopy(assembledKey, 0, outKey, 0, 4);
Array.ConstrainedCopy(suffix, 0, outKey, 4, 4);
byte[] suffix = { 0x57, 0x49, 0x4C, 0x59 };
byte[] assembledKey = CollapseByteArrayFromNibbles(intermediateKey);
Array.ConstrainedCopy(assembledKey, 0, outKey, 0, 4);
Array.ConstrainedCopy(suffix, 0, outKey, 4, 4);
return true;
return true;
}
byte[] ExpandByteArrayToNibbles(byte[] inputArray)
{
byte[] result = new byte[inputArray.Length * 2];
for (int i = 0; i < inputArray.Length; i++)
{
result[i * 2] = (byte)((inputArray[i] >> 4) & 0xF);
result[i * 2 + 1] = (byte)(inputArray[i] & 0xF);
}
return result;
}
byte[] ExpandByteArrayToNibbles(byte[] inputArray)
{
byte[] result = new byte[inputArray.Length * 2];
for (int i = 0; i < inputArray.Length; i++)
{
result[i * 2] = (byte)((inputArray[i] >> 4) & 0xF);
result[i * 2 + 1] = (byte)(inputArray[i] & 0xF);
}
return result;
}
byte[] CollapseByteArrayFromNibbles(byte[] inputArray)
{
if ((inputArray.Length % 2) != 0)
{
throw new Exception("Attempted to form a byte array from an odd-numbered set of nibbles.");
}
byte[] result = new byte[inputArray.Length / 2];
for (int i = 0; i < result.Length; i++)
{
result[i] = (byte)((inputArray[i * 2] << 4) | (inputArray[i * 2 + 1]));
}
return result;
}
byte[] CollapseByteArrayFromNibbles(byte[] inputArray)
{
if ((inputArray.Length % 2) != 0)
{
throw new Exception("Attempted to form a byte array from an odd-numbered set of nibbles.");
}
byte[] result = new byte[inputArray.Length / 2];
for (int i = 0; i < result.Length; i++)
{
result[i] = (byte)((inputArray[i * 2] << 4) | (inputArray[i * 2 + 1]));
}
return result;
}
public override string GetProviderName()
public override string GetProviderName()
{
return "IC172Algo1";
}

View File

@ -6,353 +6,353 @@ using System.Threading.Tasks;
namespace UnlockECU
{
/// <summary>
/// IC172 Level 113 (Experimental)
/// Originally discovered by Sergey (@Feezex) at https://github.com/jglim/UnlockECU/issues/2#issuecomment-962647700
/// Preliminary and likely to be revised, though the generated output will be unaffected
/// </summary>
class IC172Algo2 : SecurityProvider
{
public override bool GenerateKey(byte[] inSeed, byte[] outKey, int accessLevel, List<Parameter> parameters)
{
if ((inSeed.Length != 4) || (outKey.Length != 4))
{
return false;
}
/// <summary>
/// IC172 Level 113 (Experimental)
/// Originally discovered by Sergey (@Feezex) at https://github.com/jglim/UnlockECU/issues/2#issuecomment-962647700
/// Preliminary and likely to be revised, though the generated output will be unaffected
/// </summary>
class IC172Algo2 : SecurityProvider
{
public override bool GenerateKey(byte[] inSeed, byte[] outKey, int accessLevel, List<Parameter> parameters)
{
if ((inSeed.Length != 4) || (outKey.Length != 4))
{
return false;
}
IntToBytes(GenSeedKeyHL(inSeed), outKey, Endian.Big);
IntToBytes(GenSeedKeyHL(inSeed), outKey, Endian.Big);
return true;
}
return true;
}
uint GenSeedKeyHL(byte[] seed_bytes)
{
uint sb3 = Convert.ToUInt32(seed_bytes[3]);
uint sb3_h = sb3 / 0x10;
uint sb3_l = sb3 - sb3_h * 0x10;
uint GenSeedKeyHL(byte[] seed_bytes)
{
uint sb3 = Convert.ToUInt32(seed_bytes[3]);
uint sb3_h = sb3 / 0x10;
uint sb3_l = sb3 - sb3_h * 0x10;
uint CORR8 = 0;
if (sb3_l > 7)
{
CORR8 = 0x10;
}
uint k8 = 185 - sb3_l + CORR8;
uint CORR8 = 0;
if (sb3_l > 7)
{
CORR8 = 0x10;
}
uint k8 = 185 - sb3_l + CORR8;
uint CORR7 = 0;
uint CORR72 = 0;
uint CORR7 = 0;
uint CORR72 = 0;
if (sb3_h >= 4)
{
CORR7 = 0x80;
}
if (sb3_h >= 8)
{
CORR72 = 0x80;
}
if (sb3_h >= 0x0C)
{
CORR7 = 0x100;
}
if (sb3_h >= 4)
{
CORR7 = 0x80;
}
if (sb3_h >= 8)
{
CORR72 = 0x80;
}
if (sb3_h >= 0x0C)
{
CORR7 = 0x100;
}
uint k7 = (16 * sb3_h) - CORR7 + CORR72;
uint sb2_h = (byte)(seed_bytes[2] >> 4);
uint sb2_l = (byte)(seed_bytes[2] & 0xF);
uint k7 = (16 * sb3_h) - CORR7 + CORR72;
uint sb2_h = (byte)(seed_bytes[2] >> 4);
uint sb2_l = (byte)(seed_bytes[2] & 0xF);
uint CORR61 = 0;
uint CORR62 = 0;
uint CORR63 = 0;
uint CORR64 = 0;
uint CORR65 = 0;
uint CORR66 = 0;
uint CORR67 = 0;
uint CORR68 = 0;
uint CORR69 = 0;
uint CORR6A = 0;
uint CORR6B = 0;
uint CORR6C = 0;
uint CORR6D = 0;
uint CORR6E = 0;
uint CORR6F = 0;
uint CORR61 = 0;
uint CORR62 = 0;
uint CORR63 = 0;
uint CORR64 = 0;
uint CORR65 = 0;
uint CORR66 = 0;
uint CORR67 = 0;
uint CORR68 = 0;
uint CORR69 = 0;
uint CORR6A = 0;
uint CORR6B = 0;
uint CORR6C = 0;
uint CORR6D = 0;
uint CORR6E = 0;
uint CORR6F = 0;
if (sb2_l > 0)
{
CORR61 = 0x100;
}
if (sb2_l > 1)
{
CORR62 = 0x100 * 3;
}
if (sb2_l > 2)
{
CORR63 = 0x100;
}
if (sb2_l > 3)
{
CORR64 = 0x100 * 3;
}
if (sb2_l > 4)
{
CORR65 = 0x100;
}
if (sb2_l > 5)
{
CORR66 = 0x100 * 3;
}
if (sb2_l > 6)
{
CORR67 = 0x100;
}
if (sb2_l > 7)
{
CORR68 = 0xD00;
}
if (sb2_l > 8)
{
CORR69 = 0x100;
}
if (sb2_l > 9)
{
CORR6A = 0x100 * 3;
}
if (sb2_l > 0x0A)
{
CORR6B = 0x100;
}
if (sb2_l > 0x0B)
{
CORR6C = 0x100 * 3;
}
if (sb2_l > 0x0C)
{
CORR6D = 0x100;
}
if (sb2_l > 0x0D)
{
CORR6E = 0x100 * 3;
}
if (sb2_l > 0x0E)
{
CORR6F = 0x100;
}
uint k6 = 0xCB00 - CORR61 + CORR62 - CORR63 + CORR64 - CORR65 + CORR66 - CORR67 - CORR68 - CORR69 + CORR6A - CORR6B + CORR6C - CORR6D + CORR6E - CORR6F;
if (sb2_l > 0)
{
CORR61 = 0x100;
}
if (sb2_l > 1)
{
CORR62 = 0x100 * 3;
}
if (sb2_l > 2)
{
CORR63 = 0x100;
}
if (sb2_l > 3)
{
CORR64 = 0x100 * 3;
}
if (sb2_l > 4)
{
CORR65 = 0x100;
}
if (sb2_l > 5)
{
CORR66 = 0x100 * 3;
}
if (sb2_l > 6)
{
CORR67 = 0x100;
}
if (sb2_l > 7)
{
CORR68 = 0xD00;
}
if (sb2_l > 8)
{
CORR69 = 0x100;
}
if (sb2_l > 9)
{
CORR6A = 0x100 * 3;
}
if (sb2_l > 0x0A)
{
CORR6B = 0x100;
}
if (sb2_l > 0x0B)
{
CORR6C = 0x100 * 3;
}
if (sb2_l > 0x0C)
{
CORR6D = 0x100;
}
if (sb2_l > 0x0D)
{
CORR6E = 0x100 * 3;
}
if (sb2_l > 0x0E)
{
CORR6F = 0x100;
}
uint k6 = 0xCB00 - CORR61 + CORR62 - CORR63 + CORR64 - CORR65 + CORR66 - CORR67 - CORR68 - CORR69 + CORR6A - CORR6B + CORR6C - CORR6D + CORR6E - CORR6F;
// 6 done
// 6 done
uint CORR5 = 0;
uint CORR52 = 0;
uint CORR5 = 0;
uint CORR52 = 0;
if (sb2_h >= 1)
{
CORR5 = 0x1000 * sb2_h;
}
if (sb2_h >= 4)
{
CORR52 = 0x1000 + 0x7000;
}
if (sb2_h >= 5)
{
CORR5 = 0x1000 * sb2_h;
}
if (sb2_h >= 8)
{
CORR52 = 0x7000 + 0x1000 * sb2_h + 0x1000;
}
if (sb2_h >= 9)
{
CORR5 = 0x1000 * sb2_h + 0x1000;
}
if (sb2_h >= 10)
{
CORR5 = 0x1000 * sb2_h + 0x1000 * 2;
}
if (sb2_h >= 11)
{
CORR5 = 0x1000 * sb2_h + 0x1000 * 3;
}
if (sb2_h >= 12)
{
CORR5 = 0x1000 * sb2_h - 0x1000 * 4;
}
if (sb2_h >= 13)
{
CORR5 = 0x1000 * sb2_h - 0x1000 * 3;
}
if (sb2_h >= 14)
{
CORR5 = 0x1000 * sb2_h - 0x1000 * 2;
}
if (sb2_h >= 15)
{
CORR5 = 0x1000 * sb2_h - 0x1000;
}
uint k5 = k6 - CORR5 + CORR52;
if (sb2_h >= 1)
{
CORR5 = 0x1000 * sb2_h;
}
if (sb2_h >= 4)
{
CORR52 = 0x1000 + 0x7000;
}
if (sb2_h >= 5)
{
CORR5 = 0x1000 * sb2_h;
}
if (sb2_h >= 8)
{
CORR52 = 0x7000 + 0x1000 * sb2_h + 0x1000;
}
if (sb2_h >= 9)
{
CORR5 = 0x1000 * sb2_h + 0x1000;
}
if (sb2_h >= 10)
{
CORR5 = 0x1000 * sb2_h + 0x1000 * 2;
}
if (sb2_h >= 11)
{
CORR5 = 0x1000 * sb2_h + 0x1000 * 3;
}
if (sb2_h >= 12)
{
CORR5 = 0x1000 * sb2_h - 0x1000 * 4;
}
if (sb2_h >= 13)
{
CORR5 = 0x1000 * sb2_h - 0x1000 * 3;
}
if (sb2_h >= 14)
{
CORR5 = 0x1000 * sb2_h - 0x1000 * 2;
}
if (sb2_h >= 15)
{
CORR5 = 0x1000 * sb2_h - 0x1000;
}
uint k5 = k6 - CORR5 + CORR52;
// 5 done
// 5 done
uint sb1_h = (byte)(seed_bytes[1] >> 4);
uint sb1_l = (byte)(seed_bytes[1] & 0xF);
uint sb1_h = (byte)(seed_bytes[1] >> 4);
uint sb1_l = (byte)(seed_bytes[1] & 0xF);
uint CORR4 = 0;
uint CORR41 = 0;
if (sb1_l >= 1)
{
CORR4 = 0x10000;
}
if (sb1_l >= 2)
{
CORR41 = 0x10000 * 3;
}
if (sb1_l >= 3)
{
CORR41 = 0x10000 * (sb1_l - 1);
}
if (sb1_l >= 4)
{
CORR41 = 0x10000 * (sb1_l - 7);
}
if (sb1_l >= 5)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
if (sb1_l >= 6)
{
CORR41 = 0x10000 * (sb1_l - 7);
}
if (sb1_l >= 7)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
if (sb1_l >= 8)
{
CORR41 = 0x10000 * (sb1_l + 1);
}
if (sb1_l >= 9)
{
CORR41 = 0x10000 * (sb1_l - 1);
}
if (sb1_l >= 10)
{
CORR41 = 0x10000 * (sb1_l + 1);
}
if (sb1_l >= 11)
{
CORR41 = 0x10000 * (sb1_l - 1);
}
if (sb1_l >= 12)
{
CORR41 = 0x10000 * (sb1_l - 7);
}
if (sb1_l >= 13)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
if (sb1_l >= 14)
{
CORR41 = 0x10000 * (sb1_l + 9);
}
if (sb1_l >= 15)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
uint CORR4 = 0;
uint CORR41 = 0;
if (sb1_l >= 1)
{
CORR4 = 0x10000;
}
if (sb1_l >= 2)
{
CORR41 = 0x10000 * 3;
}
if (sb1_l >= 3)
{
CORR41 = 0x10000 * (sb1_l - 1);
}
if (sb1_l >= 4)
{
CORR41 = 0x10000 * (sb1_l - 7);
}
if (sb1_l >= 5)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
if (sb1_l >= 6)
{
CORR41 = 0x10000 * (sb1_l - 7);
}
if (sb1_l >= 7)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
if (sb1_l >= 8)
{
CORR41 = 0x10000 * (sb1_l + 1);
}
if (sb1_l >= 9)
{
CORR41 = 0x10000 * (sb1_l - 1);
}
if (sb1_l >= 10)
{
CORR41 = 0x10000 * (sb1_l + 1);
}
if (sb1_l >= 11)
{
CORR41 = 0x10000 * (sb1_l - 1);
}
if (sb1_l >= 12)
{
CORR41 = 0x10000 * (sb1_l - 7);
}
if (sb1_l >= 13)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
if (sb1_l >= 14)
{
CORR41 = 0x10000 * (sb1_l + 9);
}
if (sb1_l >= 15)
{
CORR41 = 0x10000 * (sb1_l - 9);
}
uint k4 = 0x490000 - CORR4 + CORR41;
uint k4 = 0x490000 - CORR4 + CORR41;
// 4 done
// 4 done
uint CORR3 = 0;
uint CORR31 = 0;
if (sb1_h >= 1)
{
CORR31 = 1;
}
if (sb1_h >= 2)
{
CORR3 = (sb1_h + 1);
}
if (sb1_h >= 3)
{
CORR31 = (sb1_h);
}
if (sb1_h >= 4)
{
CORR31 = (sb1_h + 5);
}
if (sb1_h >= 5)
{
CORR31 = (sb1_h + 6);
}
if (sb1_h >= 6)
{
CORR3 = (sb1_h + 4);
}
if (sb1_h >= 7)
{
CORR31 = (sb1_h + 7);
}
if (sb1_h >= 8)
{
CORR31 = (sb1_h + 12);
}
if (sb1_h >= 9)
{
CORR31 = (sb1_h + 13);
}
if (sb1_h >= 10)
{
CORR3 = (sb1_h + 7);
}
if (sb1_h >= 11)
{
CORR31 = (sb1_h + 14);
}
if (sb1_h >= 12)
{
CORR31 = (sb1_h + 19);
}
if (sb1_h >= 13)
{
CORR31 = (sb1_h + 20);
}
if (sb1_h >= 14)
{
CORR3 = (sb1_h + 10);
}
if (sb1_h >= 15)
{
CORR31 = (sb1_h + 21);
}
CORR3 <<= 20; // 1048576
CORR31 <<= 20;
uint CORR3 = 0;
uint CORR31 = 0;
if (sb1_h >= 1)
{
CORR31 = 1;
}
if (sb1_h >= 2)
{
CORR3 = (sb1_h + 1);
}
if (sb1_h >= 3)
{
CORR31 = (sb1_h);
}
if (sb1_h >= 4)
{
CORR31 = (sb1_h + 5);
}
if (sb1_h >= 5)
{
CORR31 = (sb1_h + 6);
}
if (sb1_h >= 6)
{
CORR3 = (sb1_h + 4);
}
if (sb1_h >= 7)
{
CORR31 = (sb1_h + 7);
}
if (sb1_h >= 8)
{
CORR31 = (sb1_h + 12);
}
if (sb1_h >= 9)
{
CORR31 = (sb1_h + 13);
}
if (sb1_h >= 10)
{
CORR3 = (sb1_h + 7);
}
if (sb1_h >= 11)
{
CORR31 = (sb1_h + 14);
}
if (sb1_h >= 12)
{
CORR31 = (sb1_h + 19);
}
if (sb1_h >= 13)
{
CORR31 = (sb1_h + 20);
}
if (sb1_h >= 14)
{
CORR3 = (sb1_h + 10);
}
if (sb1_h >= 15)
{
CORR31 = (sb1_h + 21);
}
CORR3 <<= 20; // 1048576
CORR31 <<= 20;
uint k3 = k4 - CORR3 + CORR31;
uint k3 = k4 - CORR3 + CORR31;
// 3 done
// 3 done
uint U1 = Convert.ToUInt32(seed_bytes[0]);
uint sb0_h = (byte)(seed_bytes[0] >> 4);
uint sb0_l = (byte)(seed_bytes[0] & 0xF);
uint U1 = Convert.ToUInt32(seed_bytes[0]);
uint sb0_h = (byte)(seed_bytes[0] >> 4);
uint sb0_l = (byte)(seed_bytes[0] & 0xF);
uint CORR2 = 0x1000000; // 1 << 24
uint k2 = CORR2 * sb0_l;
if (sb0_l >= 8)
{
k2 = CORR2 * (sb0_l - 16);
}
uint CORR2 = 0x1000000; // 1 << 24
uint k2 = CORR2 * sb0_l;
if (sb0_l >= 8)
{
k2 = CORR2 * (sb0_l - 16);
}
uint k1 = sb0_h << 28;
uint k1 = sb0_h << 28;
uint constant_msb = 0xFB000000; // 0xFB << 24
uint constant_msb = 0xFB000000; // 0xFB << 24
uint key_final = constant_msb + k8 + k7 + k5 + k3 + k2 - k1;
uint key_final = constant_msb + k8 + k7 + k5 + k3 + k2 - k1;
return key_final;
}
return key_final;
}
public override string GetProviderName()
{
return "IC172Algo2";
}
}
public override string GetProviderName()
{
return "IC172Algo2";
}
}
}