Computes the keccak of the input.
  • The input must be a multiple of 1088 bits (== 17 u64 words)
  • The input must be pre-padded following the Keccak padding rule (pad10*1):
    1. Add a ‘1’ bit
    2. Add zero or more ‘0’ bits
    3. Add a final ‘1’ bit The total length after padding must be a multiple of 1088 bits

​
Signature

pub extern fn keccak_syscall(input: Span) -> Result> implicits(GasBuiltin, System) nopanic;

​
Arguments

  • input - Array of 64-bit words (little endian) to be hashed.

​
Returns

  • The keccak hash as a little-endian u256