> ## Documentation Index
> Fetch the complete documentation index at: https://baileys.wiki/llms.txt
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# aesDecryptWithIV

> decrypt AES 256 CBC

> **aesDecryptWithIV**(`buffer`, `key`, `IV`): `Buffer`\<`ArrayBuffer`>

Defined in: [src/Utils/crypto.ts:91](https://github.com/WhiskeySockets/Baileys/blob/master/src/Utils/crypto.ts#L91)

decrypt AES 256 CBC

## Parameters

### buffer

`Uint8Array`

### key

`Uint8Array`

### IV

`Uint8Array`

## Returns

`Buffer`\<`ArrayBuffer`>