BLAKE2b Hash Generator & Verifier

Generate BLAKE2b hashes from text input and verify text against existing BLAKE2b hashes. BLAKE2b is a high-speed cryptographic hash function optimized for 64-bit platforms with variable output lengths up to 64 bytes.

1-64 bytes (default: 64)

✅ Fast & Secure for 64-bit Systems

  • • Optimized for 64-bit: Designed for modern 64-bit processors
  • • High performance: Faster than SHA-256, SHA-512, and SHA-3
  • • Cryptographically secure: 128-bit collision resistance (constant)
  • • Flexible output: Variable output length from 1 to 64 bytes
  • • Standard compliant: RFC 7693 standard implementation

📊 Technical Specifications

  • • Algorithm: Optimized variant of BLAKE2 for 64-bit platforms
  • • Word size: Uses 64-bit words for optimal performance
  • • Performance: Up to 3x faster than SHA-256 on 64-bit systems
  • • Security: 128-bit collision resistance, up to 256-bit preimage resistance
  • • Output size: 1 to 64 bytes (8 to 512 bits)
  • • Features: Salt, personalization, tree hashing modes
  • • Applications: General purpose hashing, MACs, KDFs

🔒 Security Properties Explained

Collision Resistance: Always 128 bits regardless of output length - this is a fundamental property of BLAKE2b's design
Preimage Resistance: Scales with output length up to 256 bits maximum (limited by internal state)
Why Output Length Doesn't Affect Collisions: Collision resistance depends on the internal algorithm structure, not output size
Practical Impact: Longer outputs provide better protection against preimage attacks but don't improve collision resistance

Common Use Cases

File Integrity: Fast file checksums and verification
Password Hashing: When combined with proper salting
Digital Signatures: Hash component in signature schemes
Blockchain: Mining and proof-of-work applications
Data Deduplication: Content-based addressing systems
Cryptographic Protocols: Building block for secure protocols

About BLAKE2b Hash Generator & Verifier

The BLAKE2b Hash Generator & Verifier is a professional online tool that creates BLAKE2b hash values from any text input and verifies text against existing BLAKE2b hashes. BLAKE2b is a modern cryptographic hash function optimized for 64-bit systems, designed to provide excellent performance on modern processors while maintaining strong security properties. As a standardized implementation, it offers flexible configuration options and is well-suited for a wide range of cryptographic applications requiring both speed and reliability.

Why use a BLAKE2b Hash Generator & Verifier?

This tool provides access to BLAKE2b's modern design and excellent performance characteristics for 64-bit systems. BLAKE2b offers superior speed compared to traditional hash functions while maintaining strong cryptographic security. It's ideal for applications requiring efficient hashing operations, including file integrity verification, cryptographic protocols, and security applications where performance matters without compromising safety.

Who is it for?

Essential for software developers working on modern 64-bit systems, security professionals implementing cryptographic solutions, DevOps engineers, and anyone building applications requiring efficient, secure hashing. Perfect for developers working with data integrity systems, security protocols, and performance-critical applications where reliable hashing is important.

How to use the tool

  1. Enter your text or data into the input field for hashing
  2. Optionally adjust output length (1-64 bytes) based on your security requirements
  3. Click generate to create a BLAKE2b hash with your specified parameters
  4. For verification, input the original text and existing hash to confirm they match
  5. Use for file checksums, data integrity verification, or as part of cryptographic protocols

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