MD4 Hash Generator

Generate MD4 hash from text. MD4 produces a 128-bit hash value. Note: MD4 is cryptographically broken and should not be used for security purposes. Requires crypto-js library for full functionality.

What is MD4 Hash?

MD4 (Message Digest 4) is a cryptographic hash function that produces a 128-bit (16-byte) hash value from any input data. Designed by Ronald Rivest in 1990 as a faster alternative to MD2, MD4 processes data in 512-bit blocks and generates a unique fingerprint for each unique input.

MD4 was widely used in the 1990s for password hashing and file integrity verification. However, serious cryptographic weaknesses were discovered, making it vulnerable to collision attacks. MD4 is now considered obsolete and insecure for modern cryptographic applications.

Why Use MD4 Hash Generator?

While MD4 is no longer recommended for security-critical applications, it still has use cases in legacy system compatibility, maintaining older protocols that require MD4, and verifying historical data that was hashed using MD4.

Our MD4 hash generator operates entirely in your browser with client-side processing, ensuring your data never leaves your device. This provides maximum privacy even when working with legacy hash algorithms that may be required for backward compatibility.

The tool is valuable for system administrators maintaining legacy infrastructure, developers working with older authentication systems, and security researchers analyzing cryptographic vulnerabilities. It helps verify MD4 hashes from historical systems that cannot be immediately upgraded.

Common Use Cases

Legacy Protocol Support: Generate MD4 hashes for systems still using older authentication protocols like NTLMv1.

Historical Data Verification: Verify MD4 checksums from archived files or legacy databases to confirm data integrity.

Security Research: Study MD4's vulnerabilities and collision attacks as part of cryptographic security education.

Migration Planning: Generate MD4 hashes to compare with modern alternatives when planning security upgrades.

Backward Compatibility: Maintain compatibility with legacy systems that still require MD4 for interoperability.

How to Use MD4 Hash Generator

Using our MD4 hash generator is simple: paste or type your text into the input field, and the MD4 hash is computed instantly. The resulting 128-bit hash appears as a 32-character hexadecimal string that you can copy with a single click.

Security Warning: MD4 is cryptographically broken with known vulnerabilities. Never use MD4 for passwords, digital signatures, SSL certificates, or any security-critical applications. For modern systems, migrate to SHA-256, SHA-3, or bcrypt. This tool is provided solely for legacy compatibility and educational purposes.

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