Digital watermarking is the core of this model, and PKI(Public Key Infrastructure) and trusted third party are also used in this model.

• DCLNM采用公钥基础设施PKI(Public Key Infrastructure)中的相关机制,为数字作品提供加盖时间戳、签署数字签名、随机产生认证令牌、颁发数字证书并分发密钥等服务,并借助数字水印将这些版权信息嵌入数字作品中。