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29 - Keccak256

Ethereum uses Keccak256 as its cryptographic hash function. Keccak256 was the winning candidate for the SHA3 competition held by NIST but is different from the finally adopted SHA3 standard.

Slide Screenshot

029.jpg

Slide Text

  • Cryptographic Hashing Function
  • Derived from SHA3 Competition (NIST-2015)
  • But different from the final SHA3 standard
  • Core fundamental primitive

Code Examples

Get the Keccak256 hash for the value: ethereum_string

# seth keccak ethereum_string
0x6c06391f47c23c74cc0d45831681e32e8403e6f67ca339ce4eb290944a252ca3

References