# Crypto Primitives
This directory hosts all the implementations of cryptographic primitives used in Teaclave for encryption/decryption of registered data.
Current crypto primitives include:
- AES GCM: Commonly used symmetric-key cryptographic block ciphers. Supported key sizes are: 128bits, 256bits.
- Teaclave File Key: Key for Teaclave file system (i.e., protected FS). Only 128bits key is supported.