Function generateUandUe

generateUandUe(
password: ByteArray,
fileKey: ByteArray,
): Promise<{ U: ByteArray; UE: ByteArray }>
Generates the /U and /UE values for AES-256 PDF encryption. These values are used to validate the user password and decrypt the file key.
Parameters
- password: ByteArray
  The user password.
- fileKey: ByteArray
  The 32-byte file encryption key.
Returns Promise<{ U: ByteArray; UE: ByteArray }>
A promise that resolves to an object containing the 48-byte U and 32-byte UE values.
Example
```
const { U, UE } = await generateUandUe(password, fileKey)
```
- Defined in packages/pdf-lite/src/crypto/key-gen/key-gen-aes256.ts:19