@Override
    public int hashCode() {
        int result = Objects.hash(version, keyId);
        result = 31 * result + Arrays.hashCode(enc);
        result = 31 * result + Arrays.hashCode(ciphertext);
        return result;
    }
Attempts to unwrap a SealedSharedKey opaque token representation that was previously
created by a call to toTokenString().
security-utils/src/main/java/com/yahoo/security/SealedSharedKey.java