> ## Documentation Index
> Fetch the complete documentation index at: https://baileys.wiki/llms.txt
> Use this file to discover all available pages before exploring further.

# ISignalMessage

> Protobuf interface ISignalMessage generated from WAProto.

Defined in: [WAProto/index.d.ts:11055](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L11055)

## Properties

### ciphertext?

> `optional` **ciphertext**: `null` | `Uint8Array`\<`ArrayBufferLike`>

Defined in: [WAProto/index.d.ts:11059](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L11059)

***

### counter?

> `optional` **counter**: `null` | `number`

Defined in: [WAProto/index.d.ts:11057](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L11057)

***

### previousCounter?

> `optional` **previousCounter**: `null` | `number`

Defined in: [WAProto/index.d.ts:11058](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L11058)

***

### ratchetKey?

> `optional` **ratchetKey**: `null` | `Uint8Array`\<`ArrayBufferLike`>

Defined in: [WAProto/index.d.ts:11056](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L11056)