If you see this device disabled in Device Manager and you are a home user, do not disable it. Doing so may prevent BitLocker from working correctly and could stop you from accessing secure websites or utilizing Windows Hello features.
| Function | Description | | :--- | :--- | | | AES (128/256), DES/3DES, ChaCha20 | | Hashing / MAC | SHA-1, SHA-256/512, HMAC, GMAC | | Public Key Crypto | RSA (encrypt/decrypt/sign), ECC, DH key exchange | | True Random Number Generation (TRNG) | Entropy source for keys & IVs | | Key Management | Secure key storage, key wrapping, key zeroization | | PCIe DMA | Direct memory access for buffer encryption without CPU involvement | pci encryption/decryption controller