Function generateOandOe

generateOandOe(
    password: ByteArray,
    U: ByteArray,
    fileKey: ByteArray,
): Promise<{ O: ByteArray; OE: ByteArray }>
Generates the /O and /OE values for AES-256 PDF encryption. These values are used to validate the owner password and decrypt the file key.
Parameters
- password: ByteArray
  The owner password.
- U: ByteArray
  The 48-byte /U value (required for owner key derivation).
- fileKey: ByteArray
  The 32-byte file encryption key.
Returns Promise<{ O: ByteArray; OE: ByteArray }>
A promise that resolves to an object containing the 48-byte O and 32-byte OE values.
Example
```
const { O, OE } = await generateOandOe(ownerPassword, U, fileKey)
```
- Defined in packages/pdf-lite/src/crypto/key-gen/key-gen-aes256.ts:56