@Override
    public String toString() {
        return "SharedSecretKey(sealed: %s)".formatted(sealedSharedKey.toTokenString());
    }
A SecretSharedKey represents a pairing of both the secret and public parts of
a secure one-way ephemeral key exchange.

The underlying SealedSharedKey may be made public, generally as a token.

It should not come as a surprise that the underlying SecretKey must NOT be
made public.
security-utils/src/main/java/com/yahoo/security/SecretSharedKey.java