---
title: "Class: PartialSignature"
canonical_url: "https://nimiq.dev/web-client/reference/classes/partialsignature"
---
# Class: PartialSignature

[@nimiq/core](../globals) / PartialSignature

Defined in: @nimiq/core/types/wasm/web.d.ts:1562

A partial signature is a signature of one of the co-signers in a multisig.
Combining all partial signatures yields the full signature (combining is done through summation).

## Constructors

### Constructor

> **new PartialSignature**(`bytes`): `PartialSignature`

Defined in: @nimiq/core/types/wasm/web.d.ts:1602

Creates a new partial signature from a byte array.

Throws when the byte array is not exactly 32 bytes long.

#### Parameters

##### bytes

`Uint8Array`

#### Returns

`PartialSignature`

## Properties

### serializedSize

> `readonly` **serializedSize**: `number`

Defined in: @nimiq/core/types/wasm/web.d.ts:1621

---

### SIZE

> `readonly` `static` **SIZE**: `number`

Defined in: @nimiq/core/types/wasm/web.d.ts:1622

## Methods

### __getClassname()

> **__getClassname**(): `string`

Defined in: @nimiq/core/types/wasm/web.d.ts:1565

#### Returns

`string`

---

### [dispose]()

> **[dispose]**(): `void`

Defined in: @nimiq/core/types/wasm/web.d.ts:1564

#### Returns

`void`

---

### equals()

> **equals**(`other`): `boolean`

Defined in: @nimiq/core/types/wasm/web.d.ts:1584

Returns if this partial signature is equal to the other partial signature.

#### Parameters

##### other

`PartialSignature`

#### Returns

`boolean`

---

### free()

> **free**(): `void`

Defined in: @nimiq/core/types/wasm/web.d.ts:1563

#### Returns

`void`

---

### serialize()

> **serialize**(): `Uint8Array`

Defined in: @nimiq/core/types/wasm/web.d.ts:1606

Serializes the partial signature to a byte array.

#### Returns

`Uint8Array`

---

### toHex()

> **toHex**(): `string`

Defined in: @nimiq/core/types/wasm/web.d.ts:1616

Formats the partial signature into a hex string.

#### Returns

`string`

---

### toSignature()

> **toSignature**(`aggregated_commitment`): [`Signature`](Signature)

Defined in: @nimiq/core/types/wasm/web.d.ts:1620

Converts a (aggregated) partial signature into a final signature using the aggregated commitment.

#### Parameters

##### aggregated_commitment

[`Commitment`](Commitment)

#### Returns

[`Signature`](Signature)

---

### create()

> `static` **create**(`own_private_key`, `own_public_key`, `own_commitment_pairs`, `other_public_keys`, `other_commitments`, `data`): `PartialSignature`

Defined in: @nimiq/core/types/wasm/web.d.ts:1574

Creates a new partial signature for the MuSig2 scheme.

- `ownCommitmentPairs` must be 2 pairs of random secret and commitments generated for this signing session.
- `otherCommitments` must contain 2 commitments each for all other signers.

Returns the created partial signature.

#### Parameters

##### own_private_key

[`PrivateKey`](PrivateKey)

##### own_public_key

[`PublicKey`](PublicKey)

##### own_commitment_pairs

(`string` | `Uint8Array`<`ArrayBufferLike`> | [`CommitmentPair`](CommitmentPair))<span>



</span>



##### other_public_keys

(`string` | `Uint8Array`<`ArrayBufferLike`> | [`PublicKey`](PublicKey))<span>



</span>



##### other_commitments

(`string` | `Uint8Array`<`ArrayBufferLike`> | [`Commitment`](Commitment))[]<span>



</span>



##### data

`Uint8Array`

#### Returns

`PartialSignature`

---

### deserialize()

> `static` **deserialize**(`bytes`): `PartialSignature`

Defined in: @nimiq/core/types/wasm/web.d.ts:1580

Deserializes a partial signature from a byte array.

Throws when the byte array contains less than 32 bytes.

#### Parameters

##### bytes

`Uint8Array`

#### Returns

`PartialSignature`

---

### fromAny()

> `static` **fromAny**(`sig`): `PartialSignature`

Defined in: @nimiq/core/types/wasm/web.d.ts:1590

Parses a partial signature from a PartialSignature instance, a hex string representation, or a byte array.

Throws when a PartialSignature cannot be parsed from the argument.

#### Parameters

##### sig

`string` | `Uint8Array`<`ArrayBufferLike`> | `PartialSignature`

#### Returns

`PartialSignature`

---

### fromHex()

> `static` **fromHex**(`hex`): `PartialSignature`

Defined in: @nimiq/core/types/wasm/web.d.ts:1596

Parses a partial signature from its hex representation.

Throws when the string is not valid hex format or when it represents less than 32 bytes.

#### Parameters

##### hex

`string`

#### Returns

`PartialSignature`

---

### sum()

> `static` **sum**(`partial_signatures`): `PartialSignature`

Defined in: @nimiq/core/types/wasm/web.d.ts:1612

Sums an array of partial signatures into an aggregated partial signature.

Afterwards, use `.toSignature(aggregatedCommitment)` on the result to get the final signature.

#### Parameters

##### partial_signatures

(`string` | `Uint8Array`<`ArrayBufferLike`> | `PartialSignature`)<span>



</span>



#### Returns

`PartialSignature`


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