In the application of pmos - 2000 system , the author carried out a hybrid encryption protocol with is suitable for information security transmission in electricity market with des , rsa and md5 . with the pattern characteristics of pmos - 2000 power market operator system , and analyzed and compared with other encryption system , the author puts forward an implementing method , operational process and system structure of information encryption technology used in pmos - 2000 , and the operating effects and projects which need further research and discussion were finally given . the research of this dissertation applied information security technology in power system project , which made it possible for information security transmission 在pmos ? 2000系統(tǒng)的應(yīng)用中,作者利用des對(duì)稱加密算法、 rsa非對(duì)稱加密算法、 md5數(shù)字簽名算法實(shí)現(xiàn)了一套適合電力市場(chǎng)信息安全傳輸?shù)幕旌霞用荏w制,結(jié)合了pmos ? 2000發(fā)電市場(chǎng)技術(shù)支持系統(tǒng)的模式特點(diǎn),通過(guò)與別的加密體制的分析比較,把混合加密體制應(yīng)用于pmos ? 2000系統(tǒng)之上,并提出了這套加密系統(tǒng)在pmos ? 2000電力市場(chǎng)技術(shù)支持系統(tǒng)中的實(shí)現(xiàn)方法、運(yùn)作過(guò)程和系統(tǒng)體系結(jié)構(gòu),最后給出了它的運(yùn)行效果以及進(jìn)一步可研究和探討的方案。