Touring the CryptoCape

The CryptoCape is BeagleBone's first dedicated security daughterboard. As the BBB already has cryptographic accelerations, the chips on the CryptoCape provide the key isolation features discussed in the previous section. In the BeagleBone community, daughterboards are called capes which are analogous to Arduino shields. The CryptoCape contains several crypto ICs that you may use in your projects. The design is open source hardware, so you may also visit the SparkFun website to retrieve the design files. The CryptoCape contains the following major components:

Component	Manufacturer	Features
AT97SC3205T	Atmel	TPM—RSA 2048 encryption and SHA1 hashing
ATAES132	Atmel	Encrypted EEPROM with AES-128-CCM
ATSHA204	Atmel	SHA-2 hashing (SHA-256, HMAC-256)
ATECC108	Atmel	ECDSA with NIST curves
ATmega328p	Atmel	Microcontroller
DS3231M	Maxim integrated	Real-time clock with battery
CAT24C256	ON semiconductor	EEPROM

If you imagine the BBB's...