ethereum.crypto.hash
Cryptographic Hash Functions ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
.. contents:: Table of Contents :backlinks: none :local:
Introduction
Cryptographic hashing functions.
Hash32
| 19 | Hash32 = Bytes32 |
|---|
Hash64
| 20 | Hash64 = Bytes64 |
|---|
keccak256
Computes the keccak256 hash of the input buffer.
Parameters
buffer : Input for the hashing function.
Returns
hash : ethereum.base_types.Hash32
Output of the hash function.
def keccak256(buffer: Bytes) -> Hash32:
| 24 | """ |
|---|---|
| 25 | Computes the keccak256 hash of the input `buffer`. |
| 26 | |
| 27 | Parameters |
| 28 | ---------- |
| 29 | buffer : |
| 30 | Input for the hashing function. |
| 31 | |
| 32 | Returns |
| 33 | ------- |
| 34 | hash : `ethereum.base_types.Hash32` |
| 35 | Output of the hash function. |
| 36 | """ |
| 37 | k = keccak.new(digest_bits=256) |
| 38 | return Hash32(k.update(buffer).digest()) |
keccak512
Computes the keccak512 hash of the input buffer.
Parameters
buffer : Input for the hashing function.
Returns
hash : ethereum.base_types.Hash32
Output of the hash function.
def keccak512(buffer: Bytes) -> Hash64:
| 42 | """ |
|---|---|
| 43 | Computes the keccak512 hash of the input `buffer`. |
| 44 | |
| 45 | Parameters |
| 46 | ---------- |
| 47 | buffer : |
| 48 | Input for the hashing function. |
| 49 | |
| 50 | Returns |
| 51 | ------- |
| 52 | hash : `ethereum.base_types.Hash32` |
| 53 | Output of the hash function. |
| 54 | """ |
| 55 | k = keccak.new(digest_bits=512) |
| 56 | return Hash64(k.update(buffer).digest()) |