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Topic: Certificate based encryption

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	PDF Crypter FAQ
		Either your certificate properties do not allow to be used as an encryption certificate or your certificate is not located in the proper certificate store.
		Certificate based PDF encryption guarantees that only the intended recipient is able to open the PDF document.
		With password based encryption that could never guaranteed since the password could be cracked, copied or forwarded to the 3rd party.
	www.aloaha.com /support-en/pdf-crypter-faq.php (651 words)

	Certificate-based encryption - Wikipedia, the free encyclopedia
		Certificate-based encryption is a system in which a certificate authority uses ID-based cryptography to produce a certificate.
		The downside of this is the requirement for regular communication between users and the certificate authority, which means the certificate authority is more vulnerable to electronic attacks (such as denial-of-service attacks) and also that such attacks could effectively stop the system from working.
		The best example of practical use of certificate-based encryption is Content Scrambling System (CSS), which is used to encode DVD movies in such a way as to make them playable only in a part of the world where they are sold.
	en.wikipedia.org /wiki/Certificate-based_encryption (257 words)

	ID-based cryptography - Wikipedia, the free encyclopedia
		The most efficient identity-based encryption schemes are currently based on bilinear pairings on elliptic curves, such as the Weil or Tate pairings.
		The Cocks IBE scheme is based on well-studied assumptions (the quadratic residuosity assumption) but encrypts messages one bit at a time with a high degree of ciphertext expansion.
		Clifford Cocks, An Identity Based Encryption Scheme Based on Quadratic Residues, Proceedings of the 8th IMA International Conference on Cryptography and Coding, 2001.
	en.wikipedia.org /wiki/ID-based_cryptography (651 words)

	Netscape Server Central - Certificate Server 1.0 Evaluation Guide
		A digital certificate is a type of digital identification in the form of a small data file that links a user's identity to their ownership of a public key.
		Certificates are a strong form of authentication because they require that the user both have something (the certificate and private key) and know something (the password protecting the private key).
		The main purpose of a certificate in the security infrastructure is to provide a portable, trustworthy association between the public key of the subject and the subject's name and other attributes.
	wp.netscape.com /certificate/v1.0/evalguide (2779 words)

	Cryptology ePrint Archive (Site not responding. Last check: 2007-10-27)
		In this model, a certificate -- or, more generally, a signature -- acts not only as a certificate but also as a decryption key.
		To decrypt a message, a keyholder needs both its secret key and an up-to-date certificate from its CA (or a signature from an authorizer).
		We demonstrate how certificate-based encryption can be used to construct an efficient PKI requiring less infrastructure than previous proposals, including Micali's Novomodo, Naor-Nissim and Aiello-Lodha-Ostrovsky.
	eprint.iacr.org /2003/183 (132 words)

	DigiFinancials.com - Electronic Commerce - Certificate-Based Encryption
		Certificate-based encryption is a system in which a certificate authority uses ID-based cryptography to produce a certificate.
		This system gives the users both implicit and explicit certification, the certificate can be used as a conventional certificate (for signatures, etc.), but also implicitly for the purpose of encryption.
		The downside of this is the requirement for regular communication between users and the certificate authority, which means the certificate authority is more vulnerable to electronic attacks (such as denial-of-service attacks) and also that such attacks could effectively stop the system from working.
	www.digifinancials.com /electronic-commerce/certificate-based-encryption.html (305 words)

	[No title] (Site not responding. Last check: 2007-10-27)
		Step 2 - Decrypting the encryption header ----------------------------------------- The purpose of this step is to further initialize the encryption keys, based on random data, to render a plaintext attack on the data ineffective.
		Encryption of the Central Directory is done in a manner similar to that of file encryption.
		Certificate Flag Values Additional processing flags that can be present in the Flags field of both the 0x0017 field of the central directory Extra Field and the Decryption header record preceding compressed file data are: 0x0007 - reserved for future use 0x000F - reserved for future use 0x0100 - Indicates non-OAEP key wrapping was used.
	www.pkware.com /business_and_developers/developer/popups/appnote.txt (7471 words)

	Identity-Based Encryption
		An Identity Base Encryption (IBE) scheme is a public-key cryptosystem where any string is a valid public key.
		Identity based encryption from the Weil pairing by
		Based on this assumption we show that the new system has chosen ciphertext security in the random oracle model.
	crypto.stanford.edu /ibe (1504 words)

	mod_ssl: HowTo
		In short: The server has a Global ID server certificate, signed by a special CA certificate from Verisign which enables strong encryption in export browsers.
		The question now is: How can we allow this upgrade, but enforce strong encryption.
		Or in other words: Browser either have to initially connect with strong encryption or have to upgrade to strong encryption, but are not allowed to keep the export ciphers.
	www.modssl.org /docs/2.8/ssl_howto.html (848 words)

	ipedia.com: Certificate-based encryption Article (Site not responding. Last check: 2007-10-27)
		Certificate-based encryption is a system in which a Certificate Authority uses ID-based encryption to produce a certificate.
		Key revocation can be added to the system by requiring a new certificate to be issued frequently (daily/hourly depending on level of security required), because the certificate is "public information" it does not need to be transmitted over a secret channel.
		The downside of this is the requirement for regular communication between users and the CA, which means the CA is more vulnerable to electronic attacks such as a Denial of Service attacks and also that such attacks could effectively stop the system from working.
	www.ipedia.com /certificate_based_encryption.html (289 words)

	Certificate based PDF encryption with the Aloaha PDF Crypter - Wrocklage Intermedia GmbH
		Unlike password encrypted PDF documents the recipient of such a certificate encrypted document is not able to pass the document to a third person.
		Certificate based security offers the highest level of encryption compared to traditional password based security.
		Password based security can be removed in a matter of seconds and does not protect documents from being re-distributed to unauthorized people.
	www.prleap.com /pr/16716 (464 words)

	PCWorld.com - PKWare Delivers Secure Compression
		Zip developer PKWare has added encryption and centralized management to SecureZip, so documents can be protected and compressed at the same time with a systems administrator able to define variables from one location.
		Currently the program is solely for Windows desktops but Unix and Linux versions are in the wings, and a server version is currently in beta, the company's COO and president Tim Kennedy tells us.
		PKWare has also included "the capability for administrative policy lockdowns", so, for example, the need for both a password and certificate to open encrypted files can be enforced across an organization.
	www.pcworld.com /news/article/0,aid,115878,00.asp (432 words)

	PKWare Adds Encryption to Compression Software - Computerworld
		But Knobloch said many of the clients and insurers that Gilsbar deals with have standardized on encryption technologies developed by Palo Alto, Calif.-based PGP Corp. Because of that, it has been a challenge to get some of them to accept encrypted PKZip files from Gilsbar.
		But now, "there is significant interest in compression and encryption at the server level for batch file transfers," said David Thompson, an analyst at Meta Group Inc. in Stamford, Conn.
		Encryption that's built in at the operating system level, which Microsoft includes with Windows, generally works well for protecting files on individual servers, Thompson said.
	www.computerworld.com /printthis/2003/0,4814,77891,00.html (525 words)

	PCWorld.com - The .zip Standard Splinters (Site not responding. Last check: 2007-10-27)
		PKWare and WinZip, makers of competing compression and encryption products, are fighting over the.zip standard--which means that.zip archive files created by one program may not be accessible by the other.
		The recently released beta version of WinZip 9 boasts 256-bit AES encryption as well (without certificates).
		You can decrypt and decompress such a file in one step using PentaZip, or in two steps by first using a program that supports PGP (plenty are available), and then decompressing it with any.zip program.
	www.pcworld.com /news/article/0,aid,111062,00.asp (700 words)

	AspEncrypt.com - ASP Component for File Encryption, Digital Signatures, Secure Mail and X.509 Certificate Management
		A password-protected web-based application that stores user passwords encrypted with a one-way hash function; even if the user database is stolen, it is still computationally infeasible to recover original passwords from their hash values.
		An enterprise-wide secure document repository that enables users to upload documents with a browser, keeps the documents encrypted, generates digital signatures to maintain file integrity, and dispenses the documents to eligible users upon request.
		You can now use certificates stored together with their private keys in.pfx (.p12) files.
	www.aspencrypt.com (752 words)

	MCSE 70-210 (Site not responding. Last check: 2007-10-27)
		Build an answer file based on your current computer's configuration - If you are sitting at a machine that is configured the way you would like the other machines to be set up, you can select this option.
		This is based on public key and private key encryption procedures.
		Free space for applications is based on a quota limit.
	www.etechzone.com /70-210.htm (5044 words)

	Protecting against Key Exposure: Strongly Key-Insulated Encryption with Optimal Threshold - Bellare, Palacio ... (Site not responding. Last check: 2007-10-27)
		SKIE-OT is based on the Boneh-Franklin identity-based encryption (IBE) scheme [10] and...
		Moreover, even though the model of ID based encryption assumes a fully trusted center, it was observed by
		227 Identity-based encryption from the Weil pairing - Boneh, Franklin - 2001 ACM DBLP
	citeseer.ist.psu.edu /bellare02protecting.html (762 words)

	ISC Silver CA Enrollment
		ISC is offering renewable X.509v3 certificates with a one year validity period for $10.00 USD per year.
		After you (or your browser) submits your certificate request to our CA, you will be transferred back to a payment page on this website.
		Instructions for using PGP 6/7/8 to obtain an ISC Silver E-Mail Subscriber certificate based on an existing legacy RSA key may be found here.
	www.infoseccorp.com /ca/silver/contents.htm (490 words)

	PKWARE - SecureZIP for zSeries (OS/390, z/OS) Mainframe Data Security - Enterprise Business Software (Site not responding. Last check: 2007-10-27)
		For additional protection, batch files can be digitally signed so recipients are assured of the integrity of the data and that it originated from the stated sender.
		Password-based strong encryption combined with efficient, reliable ZIP compression.
		Adds certificate-based encryption based on RSA BSAFE and meets AES standards.
	www.pkware.com /business_and_developers/security/zseries (539 words)

	Nistevo - Solutions
		The Nistevo Network is secured through multiple firewall layers, encryption, certificate-based authentication, role-based user IDs and passwords.
		The Network handles up to 600,000 transactions per hour, includes multiple boxes that scale deep and wide, and is designed to support a 500% annual growth rate (based on transactions and user login volumes).
		With over 99% up-time, the Nistevo Network's reliability is guarded through redundant servers, intelligent load balancing, multiple tier 1 bandwidth, and N+1 environment redundancy.
	www.nistevo.com /v1/solutions/technical_architecture.html (223 words)

	Stuart Padley's Web Log (Site not responding. Last check: 2007-10-27)
		The second encryption of the Service Master Key is a recent addition because service account changes (of the SQL Engine service) might have led to loss of data.
		The Entropy, while not increasing the overall strength of the encryption, does increase the difficulty for another application, running under the same service account as the SQL Server service, to compromise the encryption key.
		Service Broker comes free with the SQL Server Express edition, and by using certificate based dialog- and transport-encryption, you can setup secure message based communications with many (potentially 1,000s, if you use the message forwarding capabilities to fan in/out) branch locations that report into a central hub.
	blogs.msdn.com /stuartpa/default.aspx (3220 words)

	Aliroo Ltd. - The eMail Evolution (Site not responding. Last check: 2007-10-27)
		is a secure e-mail server that automatically applies rule-based security actions (e-mail encryption for example) to any e-mail or attached files that are routed through it.
		PrivaWall enables you to encrypt your e-mails either Symmetrically or S/Mime Certificate based encryption.
		When PrivaWall detects a digitally signed incoming e-mail, it will extract the sender's certificate so next time an e-mail is sent back to that sender - it will automatically be sent encrypted.
	www.aliroo.com /PrivaWall4Mail.htm (272 words)

	SecurityRisk :: View topic - PKZip makes file compression more secure (Site not responding. Last check: 2007-10-27)
		Zip developer PKWare has added encryption and centralised management to SecureZip, so documents can be protected and compressed at the same time with a sysadmin able to define variables from one location.
		At present, the program is solely for Windows desktops but Unix, Linux are in the wings and a server version is in beta.
		PKWare has also included "the capability for administrative policy lockdowns", so, for example, the need for both a password and certificate to open encrypted files can be enforced across an organisation.
	securityrisk.org /viewtopic.php?p=1237&sid=157c2e2b0fda8b2a16470affc... (287 words)

	HardwareGeeks.com - PKWare, WinZip format changes jeopardize compatibility.
		The.zip compression format has known remarkable stability and compatibility for many years, but that may soon change.
		"Certificate-based encryption is still a work in progress," says Jim Peterson, PKZip chief technology officer.
		For instance, if you select PGP encryption in PentaZip, your file will have the double extension.zip.pgp, and Windows won't try to open it as a.zip file.
	www.hardwaregeeks.com /print.php?shownews=286 (789 words)

	Identity-Based Encryption IBE and Secure Business Messaging By Voltage Security
		In 1984, Adi Shamir, one of the inventors of the well-known RSA public key system, proposed that using identity directly as a public key, rather than relying on certificates, might be the best approach for simplifying public key cryptography.
		Their scheme uses bilinear mappings, known as Weil and Tate pairings, on elliptic curves to obtain an algorithm that can be used to turn a simple, well-recognized identity into a public/private key pair.
		The practical application of IBE results in a solution that is easy to implement and easy to manage, without the overhead and cost inherent in traditional security solutions.
	www.voltage.com /technology (300 words)

	SSL Certificate, Free SSL Certificates from Certificate Authority: RapidSSL
		If your transaction volume and value warrants an SSL certificate from a known brand, or you require advanced site seal technology, please refer to our Professional Level SSL certificates section.
		We urge everyone to know ‘what’s what’ in all SSL certificates, so please read our FAQ and review the product matrix before you buy to ensure you choose the best SSL product for you.
		RapidSSL is delivered to you through the world’s fastest SSL certificate provisioning system - you'll have a fully functional certificate immediately.
	www.rapidssl.com /ssl-certificate-products/rapidssl/usd/ssl-certificate-rapidssl.htm (307 words)

	Techworld.com - Zip promises secure, centrally managed file compression
		A new security-led version of the popular Zip compression technology has been released today, extending the tool into the business market and putting it up against PGP.
		Currently the program is solely for Windows desktops but Unix, Linux are in the wings and a server version is currently in beta, the company's COO and president Tim Kennedy told us.
		Kennedy said this means companies can opt for a passwords-only policy or combine passwords and certificates.
	www.techworld.com /applications/news/index.cfm?NewsID=1458 (999 words)

	OpenVPN - An Open Source SSL VPN Solution by James Yonan
		OpenVPN's security model is based on using SSL/TLS for session authentication and the IPSec ESP protocol for secure tunnel transport over UDP.
		For example, when OpenVPN is built with the latest version of OpenSSL (0.9.7), it automatically has access to new ciphers such as AES-256 (Advanced Encryption Standard with 256 bit key) and the encryption engine capability of OpenSSL that allows utilization of special-purpose hardware accelerators to optimize encryption, decryption, and authentication performance.
		While the PPTP protocol has the advantage of a pre-installed client base on Windows platforms, analysis by cryptography experts has revealed security vulnerabilities.
	openvpn.net (1454 words)

	Easy RSA ActiveX Component - Certificate-Based Public-Key Encryption and Digital Signature Component
		Easy RSA integrates with Chilkat Certificate, which plays a supporting role to this and other Chilkat components, such as Chilkat S/MIME, Mail, WebMail, etc. The Certificate component provides the ability to open any type of digital certificate store, whether it be registry-based, file-based, or something else.
		It allows for certificates to be imported or exported from files, databases, Active Directory, etc. and retrieved for use with Easy RSA.
		It also allows for searching certificate stores to find a certificate matching an email address or other criteria.
	www.chilkatsoft.com /easyRsa.asp (328 words)

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