SNIP_CLASSIC_CRYPTO_FIGURE_Figure_4_1_UTILIZATIONOFCRYPTOSERVICES

Figure 4.1: AUTOSAR layered view of the crypto stack [1] • On the lowest level, the Microcontroller Abstraction Layer, the Crypto Drivers (CRYPTO) [3] are located. These modules hold the actual implementations of the different cryptographic hardware and software instances, e.g., an external HSM. A specific characteristic of the crypto stack is that there might be more than one Crypto Driver module;