symmetric cryptographysymmetric encryption对称: symmetry; symmetrical不对称加密: asymmetric encryption对称加密技术: symmetric encryption对称加密系统: symmetric cryptographic systems非对称加密系统: asymmetric encipherment system下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:对称加密,即可在微信中查询翻译