// Encrypt with AESCBC128 using keys from table.
private int executeKIRKCmd5(ByteBuffer @out, ByteBuffer @in, int size)
{
// Return an error if the crypto engine hasn't been initialized.
if (!CryptoEngine.CryptoEngineStatus)
{
return(PSP_KIRK_NOT_INIT);
}
int outPosition = @out.position();
// Read in the CMD4 format header.
AES128_CBC_Header header = new AES128_CBC_Header(@in);
if (header.mode != PSP_KIRK_CMD_MODE_ENCRYPT_CBC)
{
return(PSP_KIRK_INVALID_MODE); // Only valid for mode ENCRYPT_CBC.
}
if (header.dataSize == 0)
{
return(PSP_KIRK_DATA_SIZE_IS_ZERO);
}
sbyte[] key = null;
if (header.keySeed == 0x100)
{
key = priv_iv;
}
else
{
return(PSP_KIRK_INVALID_SIZE); // Dummy.
}
sbyte[] encKey = new sbyte[16];
for (int i = 0; i < encKey.Length; i++)
{
encKey[i] = (sbyte)key[i];
}
AES128 aes = new AES128("AES/CBC/NoPadding");
sbyte[] inBuf = new sbyte[header.dataSize];
@in.get(inBuf, 0, header.dataSize);
sbyte[] outBuf = aes.encrypt(inBuf, encKey, priv_iv);
@out.position(outPosition);
// The header is kept in the output and the header.mode is even updated from
// PSP_KIRK_CMD_MODE_ENCRYPT_CBC to PSP_KIRK_CMD_MODE_DECRYPT_CBC.
@out.putInt(PSP_KIRK_CMD_MODE_DECRYPT_CBC);
@out.putInt(header.unk1);
@out.putInt(header.unk2);
@out.putInt(header.keySeed);
@out.putInt(header.dataSize);
@out.put(outBuf);
@in.clear();
return(0);
}
public virtual sbyte[] GetConsoleKey(sbyte[] openPSID)
{
AES128 aes = new AES128("AES/ECB/NoPadding");
sbyte[] actdatKey = new sbyte[KeyVault.drmActdatKey.Length];
for (int i = 0; i < KeyVault.drmActdatKey.Length; i++)
{
actdatKey[i] = unchecked ((sbyte)(KeyVault.drmActdatKey[i] & 0xFF));
}
return(aes.encrypt(openPSID, actdatKey, iv));
}
/*
* sceNpDrm - npdrm.prx
*/
public virtual sbyte[] hleNpDrmGetFixedKey(sbyte[] hash, sbyte[] data, int mode)
{
// Setup the crypto and keygen modes and initialize both context structs.
AMCTRL.BBMac_Ctx bbctx = new AMCTRL.BBMac_Ctx();
AES128 aes = new AES128("AES/CBC/NoPadding");
// Get the encryption key.
sbyte[] encKey = new sbyte[0x10];
if ((mode & 0x1) == 0x1)
{
for (int i = 0; i < 0x10; i++)
{
encKey[i] = unchecked ((sbyte)(KeyVault.drmEncKey1[i] & 0xFF));
}
}
else if ((mode & 0x2) == 0x2)
{
for (int i = 0; i < 0x10; i++)
{
encKey[i] = unchecked ((sbyte)(KeyVault.drmEncKey2[i] & 0xFF));
}
}
else if ((mode & 0x3) == 0x3)
{
for (int i = 0; i < 0x10; i++)
{
encKey[i] = unchecked ((sbyte)(KeyVault.drmEncKey3[i] & 0xFF));
}
}
else
{
return(null);
}
// Get the fixed key.
sbyte[] fixedKey = new sbyte[0x10];
for (int i = 0; i < 0x10; i++)
{
fixedKey[i] = unchecked ((sbyte)(KeyVault.drmFixedKey[i] & 0xFF));
}
// Call the BBMac functions.
amctrl.hleDrmBBMacInit(bbctx, 1);
amctrl.hleDrmBBMacUpdate(bbctx, data, data.Length);
amctrl.hleDrmBBMacFinal(bbctx, hash, fixedKey);
// Encrypt and return the hash.
return(aes.encrypt(hash, encKey, iv));
}
