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ckeyreg(c4);
ckeyreg(c4);
// AES-128-ECB decrypt
// AES-128-CBC decrypt
if (mode == 0x00)
if (mode == 0x00)
{
{
cmov(c5, c3); // Move c3 into c5
cmov(c5, c3); // Move c3 into c5
}
}
else if (mode == 0x01) // AES-128-ECB encrypt
else if (mode == 0x01) // AES-128-CBC encrypt
{
{
// Create crypto script with 4 instructions
// Create crypto script with 4 instructions
cenc(c5, c5); // Encrypt from c5 into c5
cenc(c5, c5); // Encrypt from c5 into c5
}
}
else if (mode == 0x03) // AES-128-ECB decrypt (no IV)
else if (mode == 0x03) // AES-128-ECB decrypt
{
{
// Create crypto script with 3 instructions
// Create crypto script with 3 instructions
cxsout(c5); // Write 0x10 bytes into crypto stream from c5
cxsout(c5); // Write 0x10 bytes into crypto stream from c5
}
}
else if (mode == 0x04) // AES-128-ECB encrypt (no IV)
else if (mode == 0x04) // AES-128-ECB encrypt
{
{
// Create crypto script with 3 instructions
// Create crypto script with 3 instructions
<code>00000000: f5 3c XY e0 cchmod $cY $cX</code> - likely forces a change of permissions.
<code>00000000: f5 3c XY e0 cchmod $cY $cX</code> - likely forces a change of permissions.
<code>00000000: f5 3c XY a8 c_unk $cY $cX</code> - unknown crypto operation.
<code>00000000: f5 3c XY a8 c_unk0 $cY $cX</code> - unknown crypto operation.
<code>00000000: f5 3c XY a9 c_unk1 $cY $cX</code> - unknown crypto operation.
<code>00000000: f5 3c 0X 90 crng $cX</code> - seems to initialize a crypto register with random data.
<code>00000000: f5 3c 0X 90 crng $cX</code> - seems to initialize a crypto register with random data.