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@tevm/voltaire / index / wasm / Sha256Wasm

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Sha256Wasm

SHA256 hash function implemented using WASM Zig code

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Variables

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BLOCK_SIZE

const BLOCK_SIZE: 64 = 64
Defined in: src/crypto/sha256.wasm.ts:20 SHA256 block size in bytes

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OUTPUT_SIZE

const OUTPUT_SIZE: 32 = 32
Defined in: src/crypto/sha256.wasm.ts:15 SHA256 output size in bytes (256 bits / 8)

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Functions

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create()

create(): object
Defined in: src/crypto/sha256.wasm.ts:110 Incremental hasher for streaming data Note: This implementation uses a simple buffer accumulator. For truly large streaming data, consider using the Noble.js implementation.

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Returns

digest()
digest(): Uint8Array
Finalize and get hash
Returns
Uint8Array
update()
update(data): void
Update hasher with new data
Parameters
data
Uint8Array
Returns
void

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Example

const hasher = Sha256Wasm.create();
hasher.update(chunk1);
hasher.update(chunk2);
const hash = hasher.digest();

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hash()

hash(data): Uint8Array
Defined in: src/crypto/sha256.wasm.ts:34 Compute SHA256 hash of input data

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Parameters

data
Uint8Array Input data as Uint8Array

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Returns

Uint8Array 32-byte hash

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Example

const hash = Sha256Wasm.hash(new Uint8Array([1, 2, 3]));
// Uint8Array(32) [...]

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hashHex()

hashHex(hex): Uint8Array
Defined in: src/crypto/sha256.wasm.ts:68 Compute SHA256 hash of hex string (without 0x prefix)

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Parameters

hex
string Hex string (with or without 0x prefix)

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Returns

Uint8Array 32-byte hash

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Example

const hash = Sha256Wasm.hashHex("0xdeadbeef");
// Uint8Array(32) [...]

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hashString()

hashString(str): Uint8Array
Defined in: src/crypto/sha256.wasm.ts:50 Compute SHA256 hash of UTF-8 string

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Parameters

str
string Input string

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Returns

Uint8Array 32-byte hash

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Example

const hash = Sha256Wasm.hashString("hello world");
// Uint8Array(32) [0xb9, 0x4d, 0x27, ...]

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toHex()

toHex(hash): string
Defined in: src/crypto/sha256.wasm.ts:90 Convert hash output to hex string

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Parameters

hash
Uint8Array Hash bytes

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Returns

string Hex string with 0x prefix

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Example

const hash = Sha256Wasm.hash(data);
const hexStr = Sha256Wasm.toHex(hash);
// "0x..."