Hash Calculation Tool

Free online hash calculation tool supporting MD5, SHA1, SHA224, SHA256, SHA384, SHA512, SHA3, RIPEMD160, SM3 and other mainstream hash algorithms. Supports real-time calculation for data integrity verification.

Calculation Result

MD5
SHA1
SHA224
SHA256
SHA384
SHA512
SHA3
RIPEMD160
SM3

Hash Algorithm Knowledge

What is a Hash Algorithm?

A hash algorithm is an algorithm that maps data of arbitrary size to a bit string of a fixed size. The mapping is one-way, meaning it is infeasible to invert.

Common Hash Algorithms

  • MD5: Produces a 128-bit (16-byte) hash value. Widely used historically but now considered insecure.
  • SHA-1: Produces a 160-bit (20-byte) hash value. Also considered weak.
  • SHA-2: Includes SHA-224, SHA-256, SHA-384, SHA-512, etc. Currently considered secure and widely used in security protocols.
  • SHA-3: The latest member of the Secure Hash Algorithm family (Keccak).
  • RIPEMD-160: Produces a 160-bit hash value, commonly used in Bitcoin address generation.
  • SM3: A cryptographic hash function authorized for use in China, producing a 256-bit hash value.

Applications

  • Data Integrity: Verifying that a file has not been altered during transmission.
  • Password Storage: Storing hash values of passwords instead of plaintext.
  • Digital Signatures: Used with public-key cryptography for digital signatures.