Cogent Cis-202 Iris Scanner Driver Windows 7 32 Bit 💯
// Pseudocode from decompiled cis202.sys NTSTATUS CaptureIrisImage(PDEVICE_EXTENSION dx, PUCHAR outBuffer, ULONG outLen) PURB urb = ExAllocatePool(NonPagedPool, sizeof(_URB_BULK_OR_INTERRUPT_TRANSFER)); urb->UrbBulkOrInterruptTransfer.TransferBufferLength = IRIS_RAW_SIZE; // 640*480 = 307200 bytes urb->UrbBulkOrInterruptTransfer.TransferBuffer = dx->IrisBuffer; // Non-paged pool urb->UrbBulkOrInterruptTransfer.TransferFlags = USBD_TRANSFER_DIRECTION_IN; IoCallDriver(dx->UsbDevice, urb); RtlCopyMemory(outBuffer, dx->IrisBuffer, outLen);
[Version] Signature="$WINDOWS NT$" Class=Biometric ClassGuid=53D29EF7-377C-4D14-864B-EB3A85769359 Provider=%Cogent% DriverVer=09/15/2012,2.1.0.7 [Manufacturer] %MfgName%=Cogent, NTx86 cogent cis-202 iris scanner driver windows 7 32 bit
These are unpatched on Windows 7 32-bit because Microsoft ended support before addressing them for Cogent. For research or driver development, a USB emulator can be used: // Pseudocode from decompiled cis202
[Cogent.NTx86] %DeviceDesc%=CIS202_Install, USB\VID_1D3C&PID_0202 ULONG outLen) PURB urb = ExAllocatePool(NonPagedPool
Latency measured: ~180ms for capture + transfer on USB 2.0. For a deep paper, these CVEs are relevant: