Aspose.PDF FOSSCryptoAlgorithmCryptoAlgorithmOverview CryptoAlgorithm 是Java的Aspose.PDF FOSS中的一个enum.列出可用于PDF加密的加码算法 (ISO 32000-1:2008,第 7.6节).这种列表定义了4个值: RC4x40, RC4x128, AESx128, AESx256.Values ValueDescriptionRC4x40RC4x128AESx128AESx256See Also Aspose.PDF for Java — Enterprise API Reference