PassGuard

PassGuard is a lightweight password strength and exposure risk analyzer built in Go.
It evaluates password security using rule-based complexity checks and common password detection, producing structured JSON output for security assessment.

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Features

• Analyzes password strength using rule-based checks
• Detects weak passwords based on:
  • Length
  • Uppercase letters
  • Lowercase letters
  • Numbers
  • Symbols
  • Common password patterns
• Generates structured JSON reports
• Provides actionable security recommendations
• Ethical design: does not store or transmit passwords
• Modular Go architecture for maintainability

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Requirements

• Go 1.20 or higher

Installation Instructions

To install and run the tool, follow these steps:

1. Clone the repository:

   git clone https://github.com/FD785/PassGuard.git

2. Navigate to the project directory:

   cd PassGuard

3. Install the dependencies:

   go mod tidy

4. Run the tool:

   go run ./cmd/passguard password123

Output will be like 👍

{
 "score": 25,
 "risk_level": "high",                     <--- Shows Password Vulnerability 
 "issues": [
   "Password too short",                     |
   "Missing uppercase letters",              |--- Shows Password Vulnerability 
   "Missing symbols",                        |
   "Common password pattern"                 |
 ],
 "recommendations": [                        |
   "Use at least 12 characters",             |
   "Add uppercase characters",               |--- Shows How to create a Strong Password
   "Add special characters",                 |
   "Avoid dictionary words"                  |
 ]
}