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RSA算法是第一個能同時用于加密和數(shù)字簽名的算法，也易于理解和操作。RSA是被研究得最廣泛的公鑰算法，從提出到現(xiàn)在已近二十年，經(jīng)歷了各種攻擊的考驗(yàn)，逐漸為人們接受，普遍認(rèn)為是目前最優(yōu)秀的公鑰方案之一。RSA的安全性依賴于大數(shù)的因子分解，但并沒有從理論上證明破譯RSA的難度與大數(shù)分解難度等價。即RSA的重大缺陷是無法從理論上把握它的保密性能如何，而且密碼學(xué)界多數(shù)人士傾向于因子分解不是NPC問題。 RSA的缺點(diǎn)主要有：A)產(chǎn)生密鑰很麻煩，受到素數(shù)產(chǎn)生技術(shù)的限制，因而難以做到一次一密。B)分組長度太大，為保證安全性，n 至少也要 600 bits 以上，使運(yùn)算代價很高，尤其是速度較慢，較對稱密碼算法慢幾個數(shù)量級；且隨著大數(shù)分解技術(shù)的發(fā)展，這個長度還在增加，不利于數(shù)據(jù)格式的標(biāo)準(zhǔn)化。目前，SET( Secure Electronic Transaction )協(xié)議中要求CA采用比特長的密鑰，其他實(shí)體使用比特的密鑰
標(biāo)簽：
RSA
算法
加密
數(shù)字簽名
上傳時間：
2014-10-13
上傳用戶：sz_hjbf
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Aspect-Oriented Software Developement
Coverage includes
Using AOSD to streamline complex systems development without sacrificing flexibility or scalability
How AOSD builds on the object-oriented paradigmand how it s different
State-of-the-art best practices for the AOSD development process
Languages and foundations: separating concerns, filter technologies, improving modularity, integrating new features, and more
Using key AOSD tools, including AspectJ, Hyper/J, JMangler, and Java Aspect Components
Engineering aspect-oriented systems: UML, concern modeling and elaboration, dependency management, and aspect composition
Developing more Secure applications with AOSD techniques
Applying aspect-oriented programming to database systems
Building dynamic aspect-oriented infrastructure
標(biāo)簽：
Aspect-Oriented
Developement
streamline
Software
上傳時間：
2013-12-01
上傳用戶：jennyzai
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BlackBerry Hacks will enhance your mobile computing with great tips and tricks. You ll learn that the BlackBerry is capable of things you never thought possible, and you ll learn how to make it an even better email and web workhorse:
Get the most out of the built-in applications
Take control of email with filters, searches, and more
Rev up your mobile gaming--whether you re an arcade addict or poker pro
Browse the web, chat over IM, and keep up with news and weblogs
Work with office documents, spell check your messages, and send faxes
Become more Secure, lock down your BlackBerry and stash Secure information somewhere safe
Manage and monitor the BlackBerry Enterprise Server (BES) and Mobile Data System (MDS)
Create web sites that look great on a BlackBerry
Develop and deploy BlackBerry applications
標(biāo)簽：
BlackBerry
computing
enhance
mobile
上傳時間：
2016-12-07
上傳用戶：GavinNeko
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SharpPrivacy has been developed to be an Open Source implementation of the OpenPGP standard. OpenPGP is a standard for encrypting, decrypting, signing and verifying data cryptographically. The OpenPGP protocoll is commonly used and is said to be very Secure.
標(biāo)簽：
OpenPGP
implementation
SharpPrivacy
developed
上傳時間：
2017-01-13
上傳用戶：dreamboy36
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Description: Microsoft?Windows?HTTP Services (WinHTTP) provides developers with a server-supported, high-level interface to the HTTP/1.1 Internet protocol. WinHTTP is designed to be used primarily in server-based scenarios by server applications that communicate with HTTP servers. WinHTTP
is also designed for use in system services and HTTP-based client applications. WinHTTP is more Secure and robust than WinInet. However, single-user applications that need FTP or gopher functionality, cookie persistence, caching, automatic credential dialog handling, Internet Explorer compatibility, or downlevel platform support should still consider
using WinInet.
標(biāo)簽：
server-supported
Description
developers
Microsoft
上傳時間：
2017-02-07
上傳用戶：refent
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Java technology is both a programming language and a platform. The Java programming language originated as part of a research project to develop advanced software for a wide variety of network devices and embedded systems. The goal was to develop a small, reliable, portable, distributed, real-time operating platform. When the project started, C++ was the language of choice. But over time the difficulties encountered with C++ grew to the point where the problems could best be addressed by creating an entirely new language platform. Design and architecture decisions drew from a variety of languages such as Eiffel, SmallTalk, Objective C, and Cedar/Mesa. The result is a language platform that has proven ideal for developing Secure, distributed, network-based end-user applications in environments ranging from network-embedded devices to the World-Wide Web and the desktop
標(biāo)簽：
programming
language
Java
technology
上傳時間：
2014-01-03
上傳用戶：huangld
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S60V2版短信漏洞補(bǔ)丁ortiCleanUp_CurseSMS_103這條不到10個字符短信成功利用了SymbianOS的漏洞，使用者收到這條短信后，就再也無法打開短信收件箱功能，并可能頻繁死機(jī)。由于這條短信誰都能發(fā)，所以諾基亞所有N系列智能手機(jī)、E系列智能手機(jī)都將遭遇有史以來最嚴(yán)重的安全威脅。目前還沒有發(fā)布相關(guān)的補(bǔ)丁。如果你尚未中招，建議安裝諾基亞和F-Secure推出的保護(hù)程序，直到諾基亞推出新固件為止
標(biāo)簽：
ortiCleanUp_CurseSMS
SymbianOS
S60V2
103
上傳時間：
2017-03-15
上傳用戶：qunquan
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SecureCRT 是高度可定制的終端仿真器，適用于 Internet 和
Intranet，支持 IPv6 標(biāo)準(zhǔn)。對于連接到運(yùn)行 Windows、UNIX 和 VMS 的
遠(yuǎn)程系統(tǒng)來說，SecureCRT 是理想的選擇。
主要特性：
. 廣泛的終端仿真：
VT100，VT102，VT220，ANSI，SCO ANSI，Xterm，Wyse 50/60，
和 Linux console 仿真（帶有 ANSI 顏色）。
. 優(yōu)秀的會話管理特性：
新的帶標(biāo)簽的用戶界面和 Activator 托盤工具，最小化桌面的雜亂。
會話設(shè)置可以保存在命名的會話中。
. 協(xié)議支持：
支持 SSH1，SSH2，Telnet，RLogin，Serial，和 TAPI 協(xié)議。
. Secure Shell：
Secure Shell 加密登錄和會話數(shù)據(jù)，包括以下支持：
- 端口轉(zhuǎn)發(fā)使 TCP/IP 數(shù)據(jù)更安全
- 口令，公鑰，鍵盤交互和 Kerberos 驗(yàn)證
- AES，Twofish，Blowfish，3DES，RC4，和 DES 加密
- X11 轉(zhuǎn)發(fā)
. 文件傳輸工具：
VCP 和 VSFTP 命令行公用程序讓使用 SFTP 的文件傳輸更安全。
. 腳本支持：
支持 VBScript 和 JScript 腳本語言。
標(biāo)簽：
SecureCRT
定制
仿真器
上傳時間：
2013-12-19
上傳用戶：kikye
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Spread-spectrum techniques are methods by which electromagnetic energy generated in a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. These techniques are used for a variety of reasons, including the establishment of Secure communications, increasing resistance to natural interference and jamming, and to prevent detec
標(biāo)簽：
Spread-spectrum
electromagnetic
techniques
particular
上傳時間：
2017-06-06
上傳用戶：royzhangsz
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This application note describes the design and implementation of a usb mass storage devic using a Secure digital card,which should prove useful to developers of usb mass storage solution.This
application may be used as a stand-alone MSD or as a
Secure Digital/Multimedia Card (SD/MMC) reader/
writer interface.
標(biāo)簽：
implementation
application
describes
storage
上傳時間：
2017-06-24
上傳用戶：weiwolkt
