257 lines
7.5 KiB
Markdown
257 lines
7.5 KiB
Markdown
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# Secure Mobile Operations Application (SMOA)
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**Android Foldable Devices – Online / Offline Mission Operations**
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**Version:** 1.0
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**Last Updated:** 2024-12-20
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---
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## Table of Contents
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1. [Executive Overview](#10-executive-overview)
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2. [Platform Scope](#20-platform-scope)
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3. [Authentication and Access Control](#30-authentication-and-access-control)
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4. [Data Protection Architecture](#40-data-protection-architecture)
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5. [Functional Modules](#50-functional-modules)
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6. [Audit and Logging](#60-audit-and-logging)
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7. [User Interface](#70-user-interface)
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8. [Primary Entry Points](#80-primary-entry-points)
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9. [See Also](#see-also)
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10. [Version History](#version-history)
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---
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## 1.0 Executive Overview
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The Secure Mobile Operations Application (SMOA) is a hardened Android-based application designed for deployment on approved foldable mobile devices (e.g., Galaxy Fold-class platforms). SMOA enables **identity presentation**, **secure internal routing**, and **mission communications** in **connected, disconnected, and degraded environments**, while enforcing **multi-factor authentication, dual biometric verification, and cryptographic data protection** consistent with U.S. Government mobile security expectations.
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SMOA is intended for operational, administrative, and mission-support use by authorized government personnel and affiliated mission partners where **portability, resilience, and access assurance** are required.
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---
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## 2.0 Platform Scope
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* **Operating System:** Android (enterprise-hardened builds)
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* **Device Class:** Foldable smartphones with biometric hardware support
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* **Form Factor Awareness:** Folded / unfolded posture detection with security-aware UI rendering
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* **Deployment Model:** Government-furnished or government-approved devices under MDM/UEM control
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---
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## 3.0 Authentication and Access Control
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### 3.1 Entry Authentication (Mandatory)
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Access to SMOA shall require **three concurrent authentication factors**:
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1. **Knowledge Factor:**
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* User-defined numeric access code (PIN)
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* Enforced complexity, retry limits, and lockout thresholds
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2. **Biometric Factor – Fingerprint:**
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* Hardware-backed fingerprint verification via secure OS biometric subsystem
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3. **Biometric Factor – Facial Recognition:**
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* Hardware-backed facial recognition verification via secure OS biometric subsystem
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All three factors are required for initial access and for re-authentication following risk events.
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---
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### 3.2 Session Controls
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* Automatic session lock on inactivity, backgrounding, fold-state change (policy-defined), or security signal
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* Step-up authentication for sensitive actions (credential display, secure comms initiation, VPN browser access)
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* Immediate lockout on biometric mismatch or policy violation
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---
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### 3.3 Role and Policy Enforcement
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* Role-based access control (RBAC) enforced at module, feature, and data level
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* Access scopes defined by unit, role, mission assignment, and clearance context
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* Dynamic policy updates applied on next trusted connectivity
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---
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## 4.0 Data Protection Architecture
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### 4.1 Local Data (At Rest)
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* All locally stored data shall be encrypted using **hardware-backed key storage**
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* Encryption keys shall be non-exportable and bound to:
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* Device
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* User authentication state
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* Application instance
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### 4.2 Data in Transit
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* All external communications shall be encrypted using strong cryptographic transport mechanisms
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* Mutual authentication required for enterprise endpoints
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* No cleartext data transmission permitted under any operating mode
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### 4.3 Offline Operations
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* Mission-critical data shall remain available offline per policy
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* Offline data caches are time-bounded, revocable, and integrity-checked
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* Automatic purge or lockout after defined offline duration thresholds
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---
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## 5.0 Functional Modules
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### 5.1 Issued Credentials Module
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**Purpose:** Secure presentation of government-issued and mission-authorized credentials.
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**Capabilities:**
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* Digital display of IDs, badges, licenses, credentials, shields, and permits
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* Credential categorization by role and mission
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* Optimized presentation mode for folded device state
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**Security Controls:**
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* Screenshot and screen-recording prevention (where supported by OS)
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* Visual anti-spoofing indicators (dynamic overlays, time markers)
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* Credential freshness and validation status displayed
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**Offline Support:**
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* Authorized credentials available offline
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* Last validation timestamp clearly indicated
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---
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### 5.2 Internal Directory Module
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**Purpose:** Controlled access to internal routing and contact information.
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**Capabilities:**
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* Internal numbers, extensions, and secure routing identifiers
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* Unit-scoped and role-scoped directory views
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* Search constrained to authorized scope only
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**Offline Support:**
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* Limited directory cache for mission continuity
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* No unrestricted enumeration
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---
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### 5.3 Secure Unit Communications (Radio-Style)
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**Purpose:** Mission voice communications using channelized, unit-based access.
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**Capabilities:**
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* Multi-channel push-to-talk (PTT) or radio-style communications
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* Channel access governed by role and unit authorization
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* Priority or alert channels (policy-controlled)
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**Security Controls:**
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* Encrypted voice transport
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* No local recording unless explicitly authorized
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* Session metadata logging for audit
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---
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### 5.4 Secure Meetings and Conferencing
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**Purpose:** Encrypted coordination for meetings, briefings, and conferences.
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**Capabilities:**
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* Secure audio and video conferencing
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* Role-restricted meeting room access
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* Identity-verified participant entry
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**Controls:**
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* Step-up authentication to join or host
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* Screen sharing and file transfer restricted by policy
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* External participant access disabled by default
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---
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### 5.5 Controlled Application Browser
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**Purpose:** Secure access to a designated mission or agency web resource.
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**Capabilities:**
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* App-contained browser restricted to an allow-listed site or endpoint set
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* Mandatory VPN or tunneled connection for all traffic
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* Certificate trust hardening
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**Controls:**
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* No arbitrary URL navigation unless authorized
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* No uncontrolled downloads or uploads
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* No data sharing to external apps
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---
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## 6.0 Audit, Logging, and Compliance
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* Security-relevant events logged locally in encrypted form
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* Offline logs buffered and transmitted upon reconnection
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* Logs include:
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* Authentication events
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* Credential access
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* Communications session metadata
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* Policy enforcement actions
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* No user-accessible log export without administrative authorization
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---
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## 7.0 User Interface and Operational Indicators
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* Clear visual indicators for:
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* ONLINE / OFFLINE / RESTRICTED states
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* Fold-aware UI behavior:
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* Rapid credential access when folded
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* Expanded operational dashboard when unfolded
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* Rapid lock control always accessible
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---
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## 8.0 Primary Application Entry Points
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Upon successful authentication, the user is presented with the following modules (availability governed by policy and connectivity):
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1. **Issued Credentials**
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2. **Internal Directory**
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3. **Unit Communications**
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4. **Secure Meetings**
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5. **Controlled Browser (VPN/Tunnel)**
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---
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### Final Note
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This document is deliberately written at a **pre-implementation / pre-ATO** level and is suitable for:
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* Initial agency review
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* Security architecture discussions
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* CONOPS inclusion
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* SOW / RFP baseline language
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If you want, the next step can be:
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* A **"shall-statement" only DoD-style requirements matrix**
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* A **threat model & control mapping (NIST / DoD mobile profiles)**
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* Or a **one-page executive briefing** for senior reviewers
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Just tell me how far down the stack you want to go.
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