Function.decrypt

function decrypt(key: JsonWebKey, data: EncryptedData): Promise<string>

Decrypts the given encrypted data using the provided key.

Size Details:

• IV (Initialization Vector): Must be 96 bits (12 bytes) for AES-GCM.
• Key: Must match the length specified during generation (here 256 bits).
• Ciphertext: Variable size depending on the encrypted data.

Parameters

Parameter	Type	Description
key	JsonWebKey	The JsonWebKey used for decryption.
data	EncryptedData	The encrypted data containing the initialization vector (iv) and the ciphertext.

Returns

Promise<string>

A promise that resolves to the decrypted text.

Throws

If decryption fails.