Aspose.PDF FOSSCipherTypeCipherTypeOverview CipherType 是Java的Aspose.PDF FOSS中的一个enum.支持的加密类型 ({@code IDENTITY} =没有应用加码).这种列表定义了4个值: RC4, AES_128, AES_256, IDENTITY.Values ValueDescriptionRC4AES_128AES_256IDENTITYSee Also Aspose.PDF for Java — Enterprise API Reference