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About SHA Hashes

What is a SHA Hash?

A SHA hash (Secure Hash Algorithm) is a cryptographic function that transforms any input into a fixed-length string of characters. It's one-way, meaning it cannot be reversed to obtain the original data.

Common Uses

  • File integrity verification
  • Secure password storage
  • Digital signatures
  • Blockchain and cryptocurrencies

Algorithm Comparison

  • SHA-1: 160 bits (obsolete, not secure)
  • SHA-256: 256 bits (recommended for most uses)
  • SHA-384: 384 bits (higher security)
  • SHA-512: 512 bits (maximum security)