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[SYS.01]

LEDGER START GUIDE

SYS.ARCH // HARDWARE SPECIFICATION

ISOLATION LEVEL: EAL6+ COMPLIANT

[ SECTION 02 // HARDWARE CORE ]

SECURE ELEMENT & BOLOS CORE

Unlike software wallets or consumer microcontrollers, the architecture isolates private cryptographic keys inside a dedicated, attack-resistant secure chip governed by a proprietary multi-application operating system.

CERT: ANSSI CC EAL6+ CERTIFIED

OS: BOLOS ISOLATED ENGINE

PATH: FULL HARDWARE ROOT-OF-TRUST

The Secure Element is an audited, tamper-proof microcontroller engineered specifically to withstand advanced side-channel attacks, power glitching, fault injection, and physical decapping. It generates and stores your root seed in isolated memory that cannot be accessed by external hosts.

LAYER 01 // PHYSICAL SECURITY

SECURE ELEMENT CHIP (ST33K1M5C / CC EAL6+)

BOLOS eliminates monolithic firmware vulnerabilities by establishing an isolated execution environment for every cryptocurrency app. Applications run in sandboxed user-space, communicating strictly through cryptographic syscalls without ever exposing shared memory or root seeds.

LAYER 02 // FIRMWARE & OS

BOLOS (BLOCKCHAIN OPEN LEDGER OS)

The screen and physical confirmation buttons connect directly into the Secure Element, bypassing the host computer entirely. Transaction addresses and amounts are rendered through a trusted hardware pipeline, preventing Man-in-the-Middle spoofing and blind-signing attacks.

LAYER 03 // TRUSTED DISPLAY & IO

DIRECT PIN & TRUSTED SCREEN PIPELINE

[ SEC-OPS // PROTOCOL 01 ]

CORE SECURITY STANDARDS

NON-NEGOTIABLE ARCHITECTURE FOR SELF-CUSTODY. ELIMINATE HUMAN ERROR, BLIND SIGNING VULNERABILITIES, AND DIGITAL INTERCEPTION VECTORS.

RULE // 01

[ AIR-GAPPED ]

SEED PHRASE ISOLATION

NEVER TYPE YOUR 24 RECOVERY WORDS ONTO A COMPUTER, SMARTPHONE, OR CAMERA-EQUIPPED DEVICE. SECURE IN METALLIC BACKUPS OFFLINE ONLY.

THREAT VECTOR

KEYLOGGERS / CLOUD SYNC

RULE // 02

[ HARDWARE EAL6+ ]

ON-DEVICE VERIFICATION

ALWAYS VERIFY DESTINATION ADDRESSES AND AMOUNTS DIRECTLY ON THE HARDWARE SCREEN. NEVER TRUST COMPUTER MONITORS SUSCEPTIBLE TO CLIPBOARD INJECTIONS.

THREAT VECTOR

CLIPBOARD HIJACKERS

RULE // 03

[ ZERO-TRUST ]

BLIND SIGNING DEFENSE

DISABLE BLIND SIGNING UNLESS INTERACTING WITH AUDITED PROTOCOLS. NEVER SIGN UNPARSED HEXADECIMAL DATA OR UNVERIFIED SMART CONTRACT PERMITS.

THREAT VECTOR

MALICIOUS PERMITS / PHISHING

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