- What is SHA-1?
- SHA-1 (Secure Hash Algorithm 1) is a hash function that produces a 160-bit (20-byte) hash value. It was once widely used but is now considered cryptographically broken.
- Is SHA-1 still secure?
- No, SHA-1 is no longer considered cryptographically secure as collision attacks have been demonstrated. For security-critical applications, use SHA-256 or stronger algorithms.
- What is SHA-1 used for today?
- While not recommended for security purposes, SHA-1 is still used for version control systems (like Git), file integrity checks, and other non-security critical applications.
- Can SHA-1 hashes be reversed?
- SHA-1 is a one-way function, but due to known vulnerabilities, it's possible to generate collisions. For secure hashing, use SHA-256 or stronger alternatives.
- Is this tool secure?
- Yes, all hash calculations are performed locally in your browser. Your data never leaves your device, ensuring complete privacy.