ARM Security Technology Building a Secure System using ...

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Introduction attack, but is not technically competent. A technical expert will have developed an attack and published the details of it online; all that the device owner has to do is follow the recipe and reproduce it. It is interesting to note that device owners in this category expose themselves to a higher than usual risk of attack. In their attempts to break the protections that are in place they mistakenly download prepackaged attack software from websites that are hosted by hackers; these sites often include viruses and other malware which the users then inadvertently install on their system. 1-12 Copyright © 2005-2009 ARM Limited. All rights reserved. PRD29-GENC-009492C Non-Confidential Unrestricted Access
Chapter 2 System Security The chapter outlines some of the existing options for security in embedded systems, before introducing the ARM TrustZone hardware architecture. This chapter includes the following sections: System security on page 2-2 TrustZone hardware security on page 2-7 PRD29-GENC-009492C Copyright © 2005-2009 ARM Limited. All rights reserved. 2-1 Unrestricted Access Non-Confidential
Page 1 and 2: ARM Security Technology Building a
Page 3 and 4: Product Status This document is an
Page 5 and 6: Contents ARM Security Technology Pr
Page 7 and 8: Preface This preface introduces the
Page 9 and 10: Using this document This document i
Page 11 and 12: Feedback Feedback on this document
Page 13 and 14: Chapter 1 Introduction The chapter
Page 15 and 16: 1.1.2 Limitations of security solut
Page 17 and 18: Introduction ARM TrustZone technolo
Page 19 and 20: Introduction Security requirements
Page 21 and 22: 1.3.3 How are devices attacked? Int
Page 23: Remote attacker Introduction The cl
Page 27 and 28: 2.1.1 External hardware security mo
Page 29 and 30: 2.1.3 Software virtualization Syste
Page 31 and 32: 2.2 TrustZone hardware security 2.2
Page 33 and 34: Chapter 3 TrustZone Hardware Archit
Page 35 and 36: TrustZone Hardware Architecture Whe
Page 37 and 38: 3.2.3 Memory aliasing TrustZone Har
Page 39 and 40: TrustZone Hardware Architecture The
Page 41 and 42: Example TrustZone Hardware Architec
Page 43 and 44: 3.3.3 Secure interrupts TrustZone H
Page 45 and 46: 3.3.4 Secure processor configuratio
Page 47 and 48: TrustZone Hardware Architecture Any
Page 49 and 50: 3.4 Debug architecture 3.4.1 Proces
Page 51 and 52: TrustZone Hardware Architecture If
Page 53 and 54: Chapter 4 TrustZone Hardware Librar
Page 55 and 56: TrustZone Hardware Library These br
Page 57 and 58: 4.1.3 PrimeCell DMA Controller - PL
Page 59 and 60: TrustZone Hardware Library general
Page 61 and 62: Interesting features related to Tru
Page 63 and 64: 4.3 Reuse of AMBA2 AHB IP 4.3.1 Reu
Page 65 and 66: Chapter 5 TrustZone Software Archit
Page 67 and 68: Secure operating system TrustZone S
Page 69 and 70: 5.2 Booting a secure system 5.2.1 B
Page 71 and 72: Chain of trust TrustZone Software A
Page 73 and 74: 5.3 Monitor mode software 5.3.1 Con
Page 75 and 76:
5.3.3 Interrupt latency impact Trus
Page 77 and 78:
5.4 Secure software and multiproces
Page 79 and 80:
TrustZone Software Architecture Not
Page 81 and 82:
5.5.1 API availability TrustZone So
Page 83 and 84:
Chapter 6 TrustZone System Design T
Page 85 and 86:
6.2 Example use cases 6.2.1 Content
Page 87 and 88:
6.2.2 Mobile Payment TrustZone Syst
Page 89 and 90:
Assets TrustZone System Design The
Page 91 and 92:
6.3 Gadget2008 specification 6.3.1
Page 93 and 94:
TrustZone System Design is a return
Page 95 and 96:
Memory requirements 6.3.3 Mobile pa
Page 97 and 98:
Modem Cortex-R4 DMA (PL330) TZASC (
Page 99 and 100:
Chapter 7 Design Checklists The cha
Page 101 and 102:
7.2 Hardware design checklist Desig
Page 103 and 104:
7.3 Software design checklist 7.3.1
Page 105 and 106:
Glossary The items in this glossary
Page 107 and 108:
(2) The trusted virtual processor i
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