Module security

Unicode security utilities

This module provides utilities to detect and analyze potentially dangerous Unicode characters that could be used in security attacks such as:

• Homograph attacks (visually similar characters)
• Invisible character injection
• Bidirectional text attacks
• Mixed script attacks

Examples

use unicode_rs::security::*;

// Check for suspicious characters
let result = analyze_text("Hello\u{200B}World"); // Zero-width space
assert!(result.has_invisible_chars);

// Detect homograph attacks
let suspicious = "раураӏ.com"; // Cyrillic characters that look like "paypal.com"
let analysis = analyze_text(suspicious);
assert!(analysis.has_mixed_scripts);

Structs

SecurityAnalysis

Security analysis result for Unicode text

Enums

RiskLevel

Risk level assessment

Script

Unicode script categories

Functions

analyze_text

Analyze text for Unicode security issues

generate_security_report

Generate a security report for the given text

get_char_description

Get a human-readable description of a character

get_script

Get the script category for a character

is_bidi_char

Check if a character is a bidirectional override character

is_confusable_char

Check if a character is commonly used in confusable attacks

is_invisible_char

Check if a character is invisible or zero-width

sanitize_text

Sanitize text by removing dangerous Unicode characters