bitcoin hardware security

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Bitcoin hardware security

Robert Dyke

June 2015

Agenda ‹ What is Bitcoin? ‹ The Bitcoin wallet ‹ Hardware security features ‹ ARM TrustZone

‹ Trusted Execution

‹ Trusted user interface

‹ Cryptographic functions

‹ Partner apps ‹ Rivetz

‹ Ledger

‹ Demo

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What is Bitcoin?

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The Bitcoin wallet

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Hardware Security

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ARM TrustZone

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Trusted Execution

TRUSTZONE™

SYSTEM-ON-CHIP

APPLICATIONS PROCESSOR

SMART CONNECTED DEVICE

TOUCHSCREEN

SENSOR

BIOMETRIC

SENSOR

NFC

BLUETOOTH

WI-FI

RADIO

SECURE

ELEMENT

BASEBAND

RADIO

A/V

OUTPUT

MASS

STORAGE

LOCATION

SENSOR

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Trusted User Interface

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Security Indicator

• Text or image

• Information securely configured by the user and securely controlled by Trustonic

• Proove to the user that the screen is TRUSTED by seeing this known information

Message to be signed • Transaction summary displayed by app

• Main application environment cannot tamper with the message

• The user signs exactly what s/he is seeing

User Validation • Trusted PIN/password entry Main

application environment doesn’t have access to entered credential

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Cryptographic functions ‹ Digital signatures

‹ ECC, DSA, RSA

‹ Symmetric encryption

‹ AES, DES3

‹ Secure storage

‹ SDK provided

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Partners

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Rivetz

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Ledger

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Questions?

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Demo!