SHA Hash Generator

Online SHA hash generator supporting SHA-1, SHA-256, SHA-384, SHA-512 algorithms

Algorithm

Input Text

Hex Format Input

Hash Result

What is SHA?

SHA (Secure Hash Algorithm) is a family of cryptographic hash functions designed by NSA and published by NIST as Federal Information Processing Standard (FIPS).

Key Features

Irreversibility: Impossible to derive original data from hash
Determinism: Same input always produces same output
Avalanche Effect: Small input changes cause dramatic output changes
Collision Resistance: Hard to find two inputs with same hash

SHA Algorithm Family

SHA-1: Produces a 160-bit (20-byte) hash. Proven insecure, not recommended for security-critical applications.

SHA-256: Produces a 256-bit (32-byte) hash. Member of SHA-2 family, widely used in blockchain and cryptography.

SHA-384: Produces a 384-bit (48-byte) hash. Member of SHA-2 family, provides higher security.

SHA-512: Produces a 512-bit (64-byte) hash. Member of SHA-2 family, highest security level.

Need SHA-3 or Keccak algorithms? Go to SHA-3/Keccak Generator

Use Cases

Data Integrity: Verify files haven't been tampered with
Password Storage: Store passwords securely (with salt)
Digital Signatures: Verify data origin and integrity
Blockchain: Bitcoin and cryptocurrencies use SHA-256
File Deduplication: Identify duplicate files by hash

Security Note

SHA-1 has been proven vulnerable to collision attacks and should not be used for security-sensitive scenarios. SHA-256 or higher is recommended. For password storage, use dedicated password hashing algorithms like bcrypt or Argon2.

References

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