SHA2 Hash Generator

Generate SHA-2 family hashes from text or files instantly. SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the NSA, including SHA-224, SHA-256, SHA-384, and SHA-512.

Input Text

Drop files here or click to select

SHA-2 Hash Output

Your SHA-2 hash will appear here...
Cryptography Guide

Understanding SHA-2 Hashing

SHA-2 (Secure Hash Algorithm 2) is a family of cryptographic hash functions designed by the NSA and published in 2001. The SHA-2 family includes SHA-224, SHA-256, SHA-384, and SHA-512, each producing different output lengths. SHA-2 is considered cryptographically secure and is widely used in security-critical applications.

SHA-2 Family Characteristics:

  • Multiple Variants: SHA-224 (56 chars), SHA-256 (64 chars), SHA-384 (96 chars), SHA-512 (128 chars)
  • Cryptographically Secure: Resistant to collision and preimage attacks
  • Deterministic: Same input always produces identical hash
  • Avalanche Effect: Minor input changes create completely different hashes
  • Irreversible: Computationally impossible to derive original input
  • Industry Standard: Widely adopted in security protocols and blockchain

Professional Applications:

  • Digital Signatures: Ensure document authenticity and integrity
  • Blockchain Technology: Bitcoin and cryptocurrency transaction validation
  • Password Hashing: Secure storage of user credentials (with salt)
  • File Integrity: Verify software downloads and system files
  • Certificate Authorities: SSL/TLS certificate fingerprinting
  • Digital Forensics: Create tamper-evident evidence records
Security Approved: SHA-2 is approved by NIST and is considered cryptographically secure for all current applications including government and military use. It's the recommended standard for new implementations.
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