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secure

  • RSA算法是第一個(gè)能同時(shí)用于加密和數(shù)字簽名的算法

    RSA算法是第一個(gè)能同時(shí)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(jià)。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?cái)?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(jià)很高,尤其是速度較慢,較對(duì)稱密碼算法慢幾個(gè)數(shù)量級(jí);且隨著大數(shù)分解技術(shù)的發(fā)展,這個(gè)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2048比特長的密鑰,其他實(shí)體使用1024比特的密鑰。   這種算法1978年就出現(xiàn)了,它是第一個(gè)既能用于數(shù)據(jù)加密也能用于數(shù)字簽名的算法。它易于理解和操作,也很流行。算法的名字以發(fā)明者的名字命名:Ron Rivest, AdiShamir 和Leonard Adleman。但RSA的安全性一直未能得到理論上的證明。

    標(biāo)簽: RSA 算法 加密 數(shù)字簽名

    上傳時(shí)間: 2014-01-20

    上傳用戶:蠢蠢66

  • QualNet Sensor Networks Library QualNet’s new Sensor Networks Library is a much awaited feature

    QualNet Sensor Networks Library QualNet’s new Sensor Networks Library is a much awaited feature set that supports the IEEE 802.15.4 standard, otherwise known as Zigbee. Zigbee networks are Wireless Personal Area Networks (WPANs) that are defi ned by a low data rate, long battery life, and secure networking. Zigbee networks support automation and remote control

    標(biāo)簽: Networks QualNet Library Sensor

    上傳時(shí)間: 2017-07-30

    上傳用戶:CSUSheep

  • A certification path is an ordered list of certificates starting with a certificate issued by the re

    A certification path is an ordered list of certificates starting with a certificate issued by the relying party s trust root, and ending with the target certificate that needs to be validated. Certification path validation procedures are based on the algorithm supplied in ITU-T Recommendation X.509 and further defined in Internet Engineering Task Force (IETF) Request for Comments (RFC) 3280. Certification path processing verifies the binding between the subject distinguished name and/or subject alternative name and the subject public key defined in the target certificate. The binding is limited by constraints, which are specified in the certificates that comprise the path, and inputs that are specified by the relying party. To ensure secure interoperation of PKI-enabled applications, the path validation must be done in accordance with the X.509 and RFC 3280 specifications. This document provides the test assertions and the test cases for testing path validation software against these specifications.

    標(biāo)簽: certification certificates certificate starting

    上傳時(shí)間: 2017-07-31

    上傳用戶:清風(fēng)冷雨

  • What happens with your machine when you need to move away from the computer for 10 or more minutes?

    What happens with your machine when you need to move away from the computer for 10 or more minutes? How secure is your data? Can someone sit on your chair while you are at a coworkers office and play with your data? Maybe you need a computer locking tool that is small and easy to use yet powerful enough to make sure your machine is locked when you need to go out for a break.

    標(biāo)簽: computer happens machine minutes

    上傳時(shí)間: 2017-08-24

    上傳用戶:semi1981

  • Sha256 Algorithm. The SHA hash functions are a set of cryptographic hash functions designed by the N

    Sha256 Algorithm. The SHA hash functions are a set of cryptographic hash functions designed by the National Security Agency (NSA) and published by the NIST as a U.S. Federal Information Processing Standard. SHA stands for secure Hash Algorithm

    標(biāo)簽: functions hash cryptographic Algorithm

    上傳時(shí)間: 2014-11-09

    上傳用戶:1109003457

  • What you always wanted to know about networking but were afraid to ask! * How networks and the In

    What you always wanted to know about networking but were afraid to ask! * How networks and the Internet work * How to build coherent, cost-effective network infrastructures * How to design networks for maximum reliability and availability * What you need to know about data center and application networking * How to secure networks against today?s threats and attacks * How to take advantage of the latest mobility technologies * How virtualizing networks can help businesses leverage their network investments even further * How to combine messaging, calendaring, telephony, audio, video, and web conferencing into a unified communications architecture

    標(biāo)簽: networking networks always afraid

    上傳時(shí)間: 2013-12-25

    上傳用戶:fandeshun

  • openssl源碼

    openssl源碼 The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS) protocols as well as a full-strength general purpose cryptography library. The project is managed by a worldwide community of volunteers that use the Internet to communicate, plan, and develop the OpenSSL toolkit and its related documentation.

    標(biāo)簽: ssl、openssl、網(wǎng)絡(luò)、安全

    上傳時(shí)間: 2015-02-26

    上傳用戶:cjm3345

  • libnids-Win32

    V1.16 Win32 July 2012 - Ported to Win32 C++ - Allow multiple instances of libnids to coexist in the same process - Incorporate unofficial patch to track established TCP connections - Migration of calls to secure versions (i.e. strcpy to strcpy_s) - Compiles under Visual Studio 2010 with no warnings at W4 - Linux support well and truly broken, Linux specific code removed

    標(biāo)簽: libnids-Win32

    上傳時(shí)間: 2016-07-30

    上傳用戶:mxgg126

  • MCF5223XFS

    Connecting 32-bit controlled applications in the industrial, commercial and consumer markets is fast becoming a necessity rather than an option. Many new applications, such as remote data collection, home automation and networked appliances, require secure, high-performance connectivity at an economical price. Freescale Semiconductor gives design engineers the flexibility to choose the right 32-bit microcontroller from a broad portfolio of ColdFire? embedded controllers.

    標(biāo)簽: 5223 MCF XFS

    上傳時(shí)間: 2017-02-18

    上傳用戶:traff07

  • Enablers for Smart Cities

    The concept of smart cities emerged few years ago as a new vision for urban development that aims to integrate multiple information and communication technology (ICT) solutions in a secure fashion to manage a city’s assets. Modern ICT infrastructure and e-services should fuel sustainable growth and quality of life, enabled by a wise and participative management of natural resources to be ensured by citizens and government. The need to build smart cities became a requirement that relies on urban development that should take charge of the new infrastructures for smart cities (broadband infrastructures, wireless sensor networks, Internet-based networked applications, open data and open platforms) and provide various smart services and enablers in various domains including healthcare, energy, education, environmental management, transportation, mobility and public safety.

    標(biāo)簽: Enablers Cities Smart for

    上傳時(shí)間: 2020-05-25

    上傳用戶:shancjb

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