@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        SealedSharedKey that = (SealedSharedKey) o;
        return version == that.version && keyId.equals(that.keyId) &&
                Arrays.equals(enc, that.enc) &&
                Arrays.equals(ciphertext, that.ciphertext);
    }
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