Hello Jemish,
The i.MX 6 Security reference manual contains all the information on CAAM and it's capabilities. It´s on the web site. This is a moderated document but should not require an NDA. Please contact your local Freescale FAE to obtain access to this document.
At a high level the CAAM is a DMA master supporting the following capabilities:
Secure memory feature with HW enforced access control
Cryptographic authentication
* Hashing algorithms
* MD5
* SHA-1
* SHA-224
* SHA-256
* Message authentication codes (MAC)
* HMAC-all hashing algorithms
* AES-CMAC
* AES-XCBC-MAC
* Auto padding
* ICV checking
Authenticated encryption algorithms
* AES-CCM (counter with CBC-MAC)
Symmetric key block ciphers
* AES (128-bit, 192-bit or 256-bit keys)
* DES (64-bit keys, including key parity)
* 3DES (128-bit or 192-bit keys, including key parity)
Cipher modes
* ECB, CBC, CFB, OFB for all block ciphers
* CTR for AES
Symmetric key stream ciphers
* ArcFour (alleged RC4 with 40 - 128 bit keys)
* Random-number generation
* Entropy is generated via an independent free running ring oscillator
* Oscillator is off when not generating entropy; for lower-power consumption
* NIST-compliant, pseudo random-number generator seeded using hardware generated entropy
The NXP Linux BSP contains a CAAM driver to make use of the above features. The use of CAAM is via the Linux CryptoAPI. The driver itself is integrated with the Crypto API kernel service in which the algorithms supported by CAAM can replace the native SW implementations.
Regards
