Prepare for production build
- Downgrade react-native to 0.81.5 (matches Expo SDK 54) - Downgrade react to 19.1.0 and related @react-native packages - Disable New Architecture (react-native-nfc-manager untested) - Add expo install/doctor exclusions for version-locked deps - Configure babel to strip console.log/warn in production - Add logger utility for development-only logging - Add component and data module exports Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
michael
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src/data/chipInfo.ts
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209
src/data/chipInfo.ts
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/**
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* Educational Chip Information
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*
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* Provides user-friendly explanations of NFC chip types
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*/
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import {ChipType, ChipFamily} from '../types/detection';
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export interface ChipInfo {
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/** Brief description of the chip */
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description: string;
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/** What this chip is commonly used for */
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commonUses: string[];
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/** Key capabilities */
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capabilities: string[];
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/** Security level indicator */
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securityLevel: 'low' | 'medium' | 'high';
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/** Memory capacity description */
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memoryNote?: string;
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}
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export const CHIP_FAMILY_INFO: Record<ChipFamily, string> = {
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[ChipFamily.NTAG]:
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'NTAG chips are NXP-branded NFC Type 2 tags designed for consumer applications like sharing URLs, contact info, and app launches. This family includes MIFARE Ultralight variants.',
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[ChipFamily.MIFARE_CLASSIC]:
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'MIFARE Classic is a legacy contactless smart card technology commonly used in access control and transit systems.',
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[ChipFamily.MIFARE_DESFIRE]:
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'MIFARE DESFire is a high-security contactless smart card with advanced encryption, used in transit, access control, and payment applications.',
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[ChipFamily.MIFARE_PLUS]:
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'MIFARE Plus offers enhanced security over Classic, with optional AES encryption while maintaining backward compatibility.',
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[ChipFamily.ISO15693]:
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'ISO 15693 (NFC-V) tags operate at longer read distances than standard NFC, commonly used in library systems and industrial applications.',
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[ChipFamily.JAVACARD]:
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'JavaCard chips are programmable secure elements that can run multiple cryptographic applications, used in identity and payment systems.',
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[ChipFamily.UNKNOWN]:
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'This chip type could not be fully identified. It may be a less common or proprietary tag.',
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};
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export const CHIP_INFO: Partial<Record<ChipType, ChipInfo>> = {
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// NTAG family
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[ChipType.NTAG213]: {
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description:
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'Entry-level NTAG with 144 bytes of user memory, ideal for simple NFC applications.',
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commonUses: ['URL sharing', 'Smart posters', 'Product authentication'],
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capabilities: ['NFC Forum Type 2', 'Password protection', 'Counter function'],
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securityLevel: 'low',
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memoryNote: '144 bytes user memory',
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},
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[ChipType.NTAG215]: {
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description:
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'Mid-range NTAG commonly used for amiibo and similar applications.',
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commonUses: ['Gaming (amiibo)', 'Access tokens', 'Loyalty cards'],
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capabilities: ['NFC Forum Type 2', 'Password protection', 'Counter function'],
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securityLevel: 'low',
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memoryNote: '504 bytes user memory',
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},
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[ChipType.NTAG216]: {
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description:
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'Largest standard NTAG with 888 bytes, popular for implants and data storage.',
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commonUses: ['NFC implants', 'vCards', 'Complex data storage'],
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capabilities: ['NFC Forum Type 2', 'Password protection', 'Counter function'],
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securityLevel: 'low',
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memoryNote: '888 bytes user memory',
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},
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[ChipType.NTAG_I2C_1K]: {
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description:
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'NTAG with I2C interface allowing microcontroller communication alongside NFC.',
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commonUses: ['IoT devices', 'Energy harvesting', 'Field detection'],
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capabilities: ['NFC + I2C interface', 'Energy harvesting', 'Field detection'],
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securityLevel: 'low',
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memoryNote: '888 bytes user memory',
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},
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[ChipType.NTAG_I2C_2K]: {
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description:
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'Extended memory NTAG I2C with 1904 bytes and dual interface capability.',
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commonUses: ['IoT devices', 'Data logging', 'Connected products'],
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capabilities: ['NFC + I2C interface', 'Energy harvesting', 'SRAM buffer'],
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securityLevel: 'low',
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memoryNote: '1904 bytes user memory',
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},
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// MIFARE Classic
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[ChipType.MIFARE_CLASSIC_1K]: {
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description:
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'Classic 1K is the most common access card, using Crypto-1 encryption (now considered weak).',
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commonUses: ['Building access', 'Hotel keys', 'Transit cards'],
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capabilities: ['16 sectors', 'Key-based authentication', 'Sector permissions'],
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securityLevel: 'low',
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memoryNote: '1KB (752 bytes usable)',
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},
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[ChipType.MIFARE_CLASSIC_4K]: {
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description:
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'Extended capacity Classic card with 4KB memory, same security as 1K.',
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commonUses: ['Building access', 'Parking systems', 'Legacy transit'],
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capabilities: ['40 sectors', 'Key-based authentication', 'Sector permissions'],
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securityLevel: 'low',
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memoryNote: '4KB (3440 bytes usable)',
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},
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// DESFire
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[ChipType.DESFIRE_EV1]: {
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description:
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'First generation DESFire with AES-128 encryption for secure applications.',
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commonUses: ['Secure access control', 'Transit systems', 'Campus cards'],
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capabilities: ['AES-128/3DES', 'Multiple applications', 'Flexible file system'],
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securityLevel: 'high',
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memoryNote: '2KB, 4KB, or 8KB options',
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},
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[ChipType.DESFIRE_EV2]: {
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description:
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'Enhanced DESFire with improved security features and proximity check.',
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commonUses: ['High-security access', 'Payment cards', 'Government ID'],
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capabilities: [
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'AES-128',
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'Proximity check',
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'Transaction MAC',
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'Virtual Card Architecture',
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],
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securityLevel: 'high',
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memoryNote: '2KB, 4KB, 8KB, 16KB, or 32KB options',
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},
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[ChipType.DESFIRE_EV3]: {
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description:
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'Latest DESFire generation with enhanced cryptography and secure messaging.',
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commonUses: ['Transit', 'Access control', 'Micropayment', 'Loyalty'],
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capabilities: [
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'AES-128',
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'Secure Dynamic Messaging',
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'Transaction MAC',
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'Sun authentication',
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],
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securityLevel: 'high',
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memoryNote: '2KB, 4KB, 8KB, 16KB, or 32KB options',
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},
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// ISO 15693
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[ChipType.SLIX]: {
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description:
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'Basic ISO 15693 (NFC-V) tag with longer read range than standard NFC.',
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commonUses: ['Library systems', 'Inventory tracking', 'Industrial tags'],
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capabilities: ['Long range', 'Anti-collision', 'AFI/DSFID support'],
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securityLevel: 'low',
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memoryNote: '128 bytes',
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},
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[ChipType.SLIX2]: {
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description:
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'Enhanced SLIX with more memory and improved security features.',
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commonUses: ['Asset tracking', 'Brand protection', 'Library systems'],
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capabilities: ['Long range', 'Password protection', 'Originality signature'],
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securityLevel: 'medium',
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memoryNote: '316 bytes',
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},
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[ChipType.ICODE_DNA]: {
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description:
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'Cryptographically secured NFC-V tag for brand protection and authentication.',
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commonUses: ['Brand protection', 'Anti-counterfeiting', 'Secure supply chain'],
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capabilities: [
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'Cryptographic authentication',
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'Rolling code',
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'Originality check',
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],
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securityLevel: 'high',
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memoryNote: '256 bytes',
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},
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// JavaCard
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[ChipType.JCOP4]: {
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description:
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'Programmable secure element supporting Java Card applets for cryptographic applications.',
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commonUses: ['Identity cards', 'Digital signatures', 'Secure authentication'],
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capabilities: [
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'Java Card OS',
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'Multiple applets',
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'FIDO2/WebAuthn',
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'OpenPGP',
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],
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securityLevel: 'high',
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},
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};
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/**
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* Get educational info for a chip type
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*/
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export function getChipInfo(chipType: ChipType): ChipInfo | undefined {
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return CHIP_INFO[chipType];
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}
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/**
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* Get family description for a chip family
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*/
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export function getChipFamilyInfo(family: ChipFamily): string {
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return CHIP_FAMILY_INFO[family];
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}
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/**
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* Get security level description
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*/
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export function getSecurityLevelDescription(
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level: 'low' | 'medium' | 'high',
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): string {
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switch (level) {
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case 'low':
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return 'Basic security - data can be read/written with standard tools';
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case 'medium':
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return 'Moderate security - some protection against casual attacks';
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case 'high':
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return 'Strong security - cryptographic protection against cloning';
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}
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}
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