The iOS Cryptographic Modules, Apple iOS CoreCrypto Module v3.0, and Apple iOS CoreCrypto Kernel Module v3.0, require no setup or configuration to be in “FIPS Mode” for FIPS 140-2 compliance on devices running iOS 6.
For complete instructions about proper use of the modules, refer to the Crypto Officer Role Guide for FIPS 140-2 Compliance iOS 6.