@sodot/sodot-web-sdk • Docs

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@sodot/sodot-web-sdk / MessageHash

Class: MessageHash

A 32 byte message hash used for signing ECDSA messages.

Example

// A SHA256 hash of the string 'Hello World'
const messageHash = MessageHash.sha256('Hello World');
// A Keccak256 hash of the string 'Hello World'
const messageHash = MessageHash.keccak256('Hello World');
// In case you already have a hashed value you can just call the constructor with it:
const messageHash = new MessageHash('aabbccddeeff00112233445566778899aabbccddeeff00112233445566778899');

Constructors

new MessageHash()

new MessageHash(bytes): MessageHash

Creates a new MessageHash object from a 32 byte hash represented as Uint8Array or hex string of length 64

Parameters

• bytes: string | Uint8Array

The 32 bytes of the message hash. Can be a hex string or a Uint8Array

Returns

MessageHash

Properties

bytes

readonly bytes: Uint8Array

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LENGTH

readonly static LENGTH: 32 = 32

Methods

toHex()

toHex(): string

Returns

string

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keccak256()

static keccak256(message): MessageHash

A helper function to create a MessageHash from a string or Uint8Array using keccak256.

Parameters

• message: string | Uint8Array

The message to hash. Can be a string or a Uint8Array.

Returns

MessageHash

A MessageHash object representing the keccak256 hash of the message.

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sha256()

static sha256(message): MessageHash

A helper function to create a MessageHash from a string or Uint8Array using SHA256.

Parameters

• message: string | Uint8Array

The message to hash. Can be a string or a Uint8Array.

Returns

MessageHash

A MessageHash object representing the SHA256 hash of the message.

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sha256d()

static sha256d(message): MessageHash

A helper function to create a MessageHash from a string or Uint8Array using Double SHA256 (Bitcoin's Sha256d)

Parameters

• message: string | Uint8Array

The message to hash. Can be a string or a Uint8Array.

Returns

MessageHash

A MessageHash object representing the Double-SHA256 hash of the message.