NRF9160-SICA-R7 datasheet(79/400 Pages) NORDIC

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6 Peripherals

6.1 CRYPTOCELL — ARM TrustZone CryptoCell 310

ARM TrustZone CryptoCell 310 (CRYPTOCELL) is a security subsystem which provides root of trust (RoT)

and cryptographic services for a device.

ARM Cortex CPU

Flash

Data RAM

AHB multilayer

CRYPTOCELL

AHB-APB bridge

APB

SRAM

Always-on

domain

DMA

Public key

accelerator

engine

TRNG

AES

HASH

ChaCha

Data routing

Control

interface

SRAM

CRYPTOCELL library

CRYPTOCELL

workspace

Figure 13: Block diagram for CRYPTOCELL

The following cryptographic features are provided:

• True random number generator (TRNG) compliant with NIST 800-90B, AIS-31, and FIPS 140-2

• Pseudorandom number generator (PRNG) using underlying AES engine compliant with NIST 800-90A

• RSA public key cryptography

• Up to 2048-bit key size

• PKCS#1 v2.1/v1.5

• Optional CRT support

• Elliptic curve cryptography (ECC)

• NIST FIPS 186-4 recommended curves using pseudorandom parameters, up to 521 bits:

• Prime field: P-192, P-224, P-256, P-384, P-521

• SEC 2 recommended curves using pseudorandom parameters, up to 521 bits:

• Prime field: secp160r1, secp192r1, secp224r1, secp256r1, secp384r1, secp521r1

• Koblitz curves using fixed parameters, up to 256 bits:

4418_1315 v2.0

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