Character count: 0
Quick Examples:
MD5
Legacy algorithm, fast but not secure
LOW
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SHA-1
Deprecated for security, still used for compatibility
LOW
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SHA-256
Secure and widely recommended
HIGH
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SHA-512
Most secure, larger output size
HIGH
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SHA-224
Truncated SHA-256, balanced security
MEDIUM
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SHA-384
Truncated SHA-512, high security
HIGH
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Security Recommendations:
- • Use SHA-256 or SHA-512 for security-critical applications
- • Avoid MD5 and SHA-1 for new projects
- • For password hashing, use specialized algorithms like bcrypt, scrypt, or Argon2
- • All processing happens locally in your browser for privacy
About Hash Encoding
Cryptographic hash functions are mathematical algorithms that convert input data into fixed-size strings of characters. They are essential for data integrity, digital signatures, and various security applications.
Algorithm Comparison:
- MD5: 128-bit, fast but cryptographically broken
- SHA-1: 160-bit, deprecated due to collision vulnerabilities
- SHA-224: 224-bit, truncated SHA-256
- SHA-256: 256-bit, current standard for security
- SHA-384: 384-bit, truncated SHA-512
- SHA-512: 512-bit, highest security level
Common Applications:
- File integrity verification and checksums
- Digital certificates and signatures
- Blockchain and cryptocurrency
- Password verification systems
- Data deduplication
- Cache keys and unique identifiers
Hash Properties:
- Deterministic: Same input always produces same output
- Fixed Size: Output length is always the same
- One-way: Cannot reverse hash to get original input
- Avalanche Effect: Small input changes cause large output changes
- Collision Resistant: Difficult to find two inputs with same hash