This paper defines a strong security model for multi-recipient signcryption scheme in the random oracle model, which is semantically secure against adaptive chosen-ciphertext insider attack, existentially forgeable chosen-message attack and anonymous chosen-ciphertext insider attack. By analyzing, we point out that Li-Hu-Liu Multi-Recipient Signcryption Scheme is insecure against the adaptive and anonymous chosen-ciphertext insider attacks.

摘要在隨機(jī)預(yù)言模型下定義了一個(gè)多接收者簽密方案的強(qiáng)安全性模型亚洲欧美第一视频，該模型滿足適應(yīng)性選擇密文內(nèi)部攻擊安全性、選擇消息抗存在性偽造和密文匿名安全性www.av天堂.cim；通過分析指出国产毛片自拍， Li、Hu和Liu等人提出的多接收者簽密方案国产一级迷奸黄片视频大全，不具有適應(yīng)性選擇密文內(nèi)部攻擊安全性和密文匿名性亚洲一区区区三区区区按摩，并給出所定義強(qiáng)安全性模型中的攻擊方法；隨后提出改進(jìn)方案，該方案在強(qiáng)安全模型中證明是安全的免費看黄色网站。

Unfortunately,in this work, security analysis was given to the scheme and results showed that the scheme was forgeable and repudiative.

通過對Zhou的方案進(jìn)行安全分析91精品国产自产在线观看永久∴，指出該方案具有偽造性和否認(rèn)性，并給出相應(yīng)的攻擊方法日本久久综合色。

We show that it is secure against existential forgeable on adaptively chosen message and ID attack under the random oracle.

在隨機(jī)預(yù)言機(jī)模型下精品国产自，證明了其在適應(yīng)性選擇消息攻擊及身份攻擊下都能抵抗存在偽造。

We can produce 3500 tor forgeable iron, 2800 ton forged,product,1200 ton aluminum bronze aluminum and 1000 ton cast iron one year.

可鍛鑄鐵年產(chǎn)量3500噸欧美日韩综合，鍛壓類年產(chǎn)量2800噸爱鲁乱伦无码免费网，鋁銅鋁類年產(chǎn)量1200噸，鑄鐵類年產(chǎn)量1000噸激情文学综合。

For grinding of middle and high tensile strength metal ,such as carbon steel ,alloy steel ,hard bronze,forgeable cast iron ,ect.

適用于中高抗張強(qiáng)度金屬材料的磨削日本中文在线。如碳剛、合金鋼www.eemii.com、硬青銅2019欧美中文免费看、可鍛鑄鐵等。

For processing the high tensile metals:carbon stell common alloy stell,hard bronze forgeable castiron.etc.

加工高抗張強(qiáng)度的金屬：碳素鋼黄色视频100种在线视频、硬青銅和可鍛鑄鐵等欧美日韩精品无。

Each illegal sector has its own reasons for success: internet banks are easier to rob than high-street ones, for instance, and passport forgery has become easier since the accession to the EU of countries with more easily forgeable documents.

每個(gè)非法領(lǐng)域都有其自身成功門道：比如說，網(wǎng)上銀行比位于主干街道上的銀行更容易搶劫一级做a片久久毛片A片，及69人妻论坛，自從進(jìn)入歐盟國家的文件偽造起來簡單得多，偽造護(hù)照也隨之容易国产一本国产一级。

It has the and of shape world, showing as voice, image, data and information, existing in the form of sound, light, electric, magnetism forms of particle. It is vivid, formative, audio visional; it is actual, reliable and objective. Wielding modern science and technological means recording suits; independent from subject; it can reappear the process of criminal, having more accuracy and forgeable.

它是借助于有形物質(zhì)而存在的無形物質(zhì)A片免费视频久久，表現(xiàn)為聲音、圖象网站18禁、數(shù)據(jù)免费看sss级黄片、信息等的視聽資料是以聲、光免费的a级片、電AV研习所、磁以及其他粒子形式存在的；視聽資料生動国产原创在线免费视频、形象夜夜狠狠青草伊人中文字幕、直觀，它望之有形男女做黄色毛片网站、聞之有聲www日日干日日夜com、查之有據(jù)；視聽資料準(zhǔn)確欧美男女性生活视频、可靠综合自拍偷拍色、客觀欧美狂野激情性爱视频在线，它是運(yùn)用現(xiàn)代科技手段記錄案件的觀客事實(shí)，不受主觀意識制約青草视频在线2020；視聽資料可以原聲原貌地再現(xiàn)犯罪過程一级毛片和暴力；視聽資料還具有信息量大、科技含量大AV一级黄色录像、精密度高国内精品久久久久久不卡影院、易于作假等特征。