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Topic: Shared key

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	Symmetric key algorithm - Wikipedia, the free encyclopedia
		Symmetric-key algorithms are a class of algorithms for cryptography that use trivially related cryptographic keys for both decryption and encryption.
		The encryption key is trivially related to the decryption key, in that they may be identical or there is a simple transform to go between the two keys.
		Since keys are subject to discovery by a cryptographic adversary, they need to be changed often and kept secure during distribution and in service.
	en.wikipedia.org /wiki/Shared_key (528 words)

	Message formatting, authentication, and error detection in home control systems - US Patent 6690289 (Site not responding. Last check: 2007-10-13)
		A method component as recited in claim 26, wherein the shared key value is from a sequence of key values, further comprising a step of calculating the sequence of key values using a one-way function of a counter value that advances to generate each sequential key value.
		An electrical component as recited in claim 32, wherein the shared key value is from a sequence of key values, wherein the processor calculates the sequence of key values using a one-way function of a counter values that advance to generate each sequential key value.
		An electrical component as recited in claim 39, wherein the shared key value is from a sequence of key values, wherein the processor calculates the sequence of key values using a one-way function of a counter value that advances to generate each sequential key value.
	www.patentstorm.us /patents/6690289.html (8199 words)

	Patent 5081678: Method for utilizing an encrypted key as a key identifier in a data packet in a computer network
		The master key is used according to the present invention, to encrypt the shared key under the master key of each of the two nodes.
		Once the shared key is determined, it is then used to either decrypt the remainder of the data packet as it is received or verify the integrity of the received data packet.
		Another method of negotiating a shared key is to utilize the key distribution center 30 to establish the initial contact between node A 11 and node B 12.
	www.freepatentsonline.com /5081678.html (7591 words)

	shared key (Site not responding. Last check: 2007-10-13)
		This is where the Key Distribution Center is used and it consists of a service which runs on all Windows 2000 domain controllers and generates the shared key for the client and server and sends it in an encrypted form to the client.
		The KDC responds to the client's request to talk to a server by sending both copies of the session key to the client (one for the client, one for the server but it is the same key just packaged differently).
		The server's copy of the session key is embedded, along with authorization data for the client, in a data structure called a session ticket.
	www.privacywindows.com /securityfaq/print/shared-key.html (428 words)

	The Foundations of Distributed Message-Level Security (Site not responding. Last check: 2007-10-13)
		Shared key encryption is the key technology to achieve the security principle of message confidentiality.
		Shared key encryption utilizes public key encryption to manage distribution of the shared key securely to the recipient.
		Shared key algorithms are fast and can handle infinitely large messages; however, both ends of the communication need access to the same key, and you need to get it to your recipient securely.
	www.informit.com /articles/article.asp?p=174324&seqNum=2 (1823 words)

	Shared Key pilot
		The decision to proceed with a pilot of infrastructure for shared keys, involving a number of 'live' agency applications (Component 5) is the only 'on the ground' product (as opposed to reports, standards etc) expected from the II during its expected (2 year) lifetime.
		The functionality of the proposed Key Hub has not been specified in any detail, but it is clear that it is intended to form the basis of a long term infrastructure for a much wider application - ie: it is not a 'throw away' pilot.
		A 'report-back' on the development of plans for a Shared Key Pilot is proposed in October 2004.
	www.e-government.govt.nz /docs/pia-200404/chapter7.html (626 words)

	Encryption/Decryption Layer for JavaGroups
		The other reason to choose symmetric key for encryption and decryption the information is if we choose the asymmetric key and there are 5 member in a groups, each member should have his own private key to decrypt and 4 other’s public key to encrypt the message.
		Therefore, we use the symmetric key for encryption and decryption message and asymmetric key systems is used for encrypt and decrypt the shared key for key distribution.
		Key distribution server is in charge of distributing the shared key to every member.
	www.cs.cornell.edu /Info/Projects/JavaGroupsNew/studentprojects/crypt/design.html (1678 words)

	mamros-pskeyext-00.txt
		While it is expected that usage of public key mechanisms will increase substantially in the near future, many sites which want to use IP Security as a tunnelling mechanism for remote access over the Internet may not be able or willing to convert their existing systems to use public key technology right away.
		When pre-shared key authentication is being used, HASH_R is derived from a combination of the pre-shared key and the nonces, ISAKMP cookies, and publicly-exchanged Diffie-Hellman values of both the initiator and responder, plus the responder's identity.
		Derivation of the Pre-Shared Key The pre-shared key is derived by using the HMAC algorithm [RFC-2104] in conjunction with the SHA-1 hash algorithm, with the passphrase used as the key and the plaintext username as the "message".
	ietfreport.isoc.org /idref/draft-mamros-pskeyext (1205 words)

	NetStumbler.org WiFi Forums - Shared Key Authentication in Linux ???
		With shared key authentication, the AP sends the client device a challenge text packet that the client must then encrypt with the correct WEP key and return to the AP.
		Shared key authentication is not considered secure, because a hacker who detects both the clear-text challenge and the same challenge encrypted with a WEP key can decipher the WEP key.
		Shared Authenticate has a serious flaw, in that it is a simple challenge/response protocol.
	www.netstumbler.org /showthread.php?t=10936 (1756 words)

	[No title]
		The standard explanations like "with public key cryptography, two keys are generated, a public key and a private key; the private key the individual keeps to himself, and the public key is shared with everyone" doesn't really convey the power behind this technology.
		Shared public key cryptography could be compared to making duplicate keys and sharing them with others.
		This key is NOT part of a public key private key pair; it both encrypts and decrypts (locks and unlocks) the message.
	mirror.lcs.mit.edu /archives/private.line.e-zine/private.line-1 (8737 words)

	Jean Sini: Structured Communications
		Finally, adequate representation is essential, as it is the key to efficiently communicating concepts.
		For enterprise application software, for instance, 2 key elements of the specifications should be screen-shots of mock-ups and possibly performance indicators of response time to the end-user.
		The one feature set that relates to both the tool and process used to build and share knowledge, and that knowledge itself, is the group of features exposed to allow editing of the document in the most convenient fashion.
	www.sini.net (2256 words)

	Security Protocols Open Repository
		Session key exchange inspired by the Yahalom protocol with the addition of timestamps, and mutual authentication.
		Symmetric keys, trusted server and public keys (only the public key of the server is used).
		One way authentification protocol with public keys and trusted server, simplification of Woo and Lam Pi 3, Woo and Lam Pi 2, Woo and Lam Pi 1, and Woo and Lam Pi f.
	www.lsv.ens-cachan.fr /spore/table.html (782 words)

	Shared Key - Biggest key resource on the Internet (Site not responding. Last check: 2007-10-13)
		Dan Simon's "Shared Key Authentication for the TLS Protocol" August 1996 proposal was issued as an...
		Shared Serial Ports is an advanced utility, the purpose of which is...
		The cool thing about shared memory segments is that they are what they sound like: a segment of memory that is shared between processes.
	keys.incredosite.info /index.php?k=shared-key (998 words)

	[No title]
		In the case where the responder has multiple public keys, a hash of the certificate the initiator is using to encrypt the ancillary information is passed as part of the third message.
		In this mode, the nonce is still encrypted using the public key of the peer, however the peer's identity (and the certificate if it is sent) is encrypted using the negotiated symmetric encryption algorithm (from the SA payload) with a key derived from the nonce.
		For situations where the amount of keying material desired is greater than that supplied by the prf, KEYMAT is expanded by feeding the results of the prf back into itself and concatenating results until the required keying material has been reached.
	www.ietf.org /rfc/rfc2409.txt (7987 words)

	ISS X-Force Database: sonicwall-ike-shared-keys(6304): SonicWALL IKE pre-shared key is 48 bytes instead of 128 bytes
		The IKE pre-shared key is designed to be 128 bytes in length.
		CAN-2001-0376: SonicWALL Tele2 and SOHO firewalls with 6.0.0.0 firmware using IPSEC with IKE pre-shared keys do not allow for the use of full 128 byte IKE pre-shared keys, which is the intended design of the IKE pre-shared key, and only support 48 byte keys.
		This allows a remote attacker to brute force attack the pre-shared keys with significantly less resources than if the full 128 byte IKE pre-shared keys were used.
	xforce.iss.net /xforce/xfdb/6304 (308 words)

	Wlan Shared Key Authentication
		All the information you require about Wlan Shared Key Authentication can be located through our resouce guide to Wlan Shared Key Authentication.
		Finding a good Wlan Shared Key Authentication resource which can help in your search for Wlan Shared Key Authentication can mean looking at various websites, to locate the best information, and this can be a very time-consuming exercise.
		Cisco - Cisco Aironet Security Solution Provides Dynamic WEP - Cisco also agrees that shared key authentication can be easily exploited through a passive attack by eavesdropping the SSID, the WLAN network name, as the shared secret.
	www.wireless-internet-wifi-guide.info /wlan-shared-key-authentication.html (270 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		The name of the requested right is matched against the keys.
		The shared property specifies whether a credential generated on success is shared with other apps (same "session").
		An acquired credential is shared amongst all clients.
	www.cmu.edu /computing/project/macosx/config/authorization (535 words)

	CHAP (Challenge Handshake Authentication Protocol) (Linktionary term)
		A challenge/response is a security mechanism for verifying the identity of a person or process without revealing a secret password that is shared by the two entities.
		An important concept related to CHAP is that the client must prove to the server that it knows a shared secret without actually revealing the secret (sending the secret across the wire could reveal it to an eavesdropper).
		The challenge requires that an entity prove possession of a shared key or one of the key pairs in a public key scheme.
	www.linktionary.com /c/chap.html (410 words)

	RE: Please save the pre-shared key mode
		I think we should examine the process before claiming PSK is dead.
		For a user-interface, you can make a public-key system look EXACTLY like a pre-shared symmetric key system (maybe not exactly, but at least as simple).
		> > There are already two choices for keying IPsec SA's > with pre-shared keys with IETF protocols: > > 1) IKEv1 > 2) KINK > > The latter can be used peer-peer as well, and > fixes many of the problems with (1).
	www.sandelman.ottawa.on.ca /ipsec/2001/12/msg00117.html (457 words)

	MySQL Reference Manual :: 7.4.6.1 Shared Key Cache Access
		As a result, a request for an index block not present in any key cache buffer blocks access by other threads while a buffer is being updated to contain the requested index block.
		Multiple threads can initiate requests that result in cache block replacements, as long as they do not interfere with each other (that is, as long as they need different index blocks, and thus cause different cache blocks to be replaced).
		Shared access to the key cache allows the server to improve throughput significantly.
	dev.mysql.com /doc/mysql/en/shared-key-cache.html (239 words)

	The UNIX Forums - IPSec - VPN using shared key
		You simply use the same (shared secret) key on both ends of the IPSEC VPN tunnel.
		Perhaps you would be better off using a simple shared secret between the two implementations.
		This shared secret would be used to establish a session key.
	www.unix.com /showthread.php?t=9654 (337 words)

	Shared Key - Wifi doesn't take - Dave's iPAQ
		Hi all, I just looked at my 4700 sitting in the cradle on my desk first thing this morning and noticed that I had a whopping total of 0.35...
		I tried going into the wifi setup and selecting shared auth, data encryption WEP, uncheck the automatic key provided, enter the key and then hit okay.
		So instead of having it find the network called "", and then modifying the settings, I made a new one, specified the name, set the key/shared and it saved the settings at that point.
	davesipaq.com /forum/showthread.php?t=5795 (449 words)

	RE: Please save the pre-shared key mode
		Under that context, PSK is simpler to run than PKI.
		> In a multi-homed world (esp. IPv6), pre-shared keys indexed by address > pairs is as much hassle as PKI registration (it's just less snake-oil > than most PKIs ;).
		Prev by Date: RE: Please kill preshared key.
	www.sandelman.ottawa.on.ca /ipsec/2001/12/msg00123.html (328 words)

	WiFi-Forum - Shared Key with wireless in Linux -- is this possible?
		Shared Key with wireless in Linux -- is this possible?
		When you say "shared key" are you using an actual hex key, or attempting
		They also may differ in numbering for the 4 keys (1-4 vs 0-3).
	www.wifi-forum.com /wf/showthread.php?t=844 (2558 words)

	Shared Private Key and Smart Card
		Our solution consists in using a smart card and a group-shared private key.
		(which is unique and that identifies her) and the shared private key
		He only has to verify the signature to be sure that the message is sent by a group member (because only group members possess the group-shared private key used to compute the signature).
	www.usenix.org /events/cardis02/full_papers/canard/canard_html/node7.html (442 words)

	Wi-Fi Planet Forums - shared key authentication
		in the cwna official guide it is mentioned that shared key authentication is even less secure than open authentication.
		Then there are several encryption breakers available that would do the comparison thing and eventually get the key figured out.
		In shared the initial encryption phrase is passed in the clear and then returned encrypted.
	forums.wi-fiplanet.com /showthread.php?threadid=3463 (351 words)

	LinuxCult Forums - Shared Key with wireless in Linux -- is this possible? (Site not responding. Last check: 2007-10-13)
		Main Index » LinuxCult Forums » NNTP NewsGroups » comp.os.linux » Shared Key with wireless in Linux -- is this possible?
		using shared keys, so I need something very portable and easy to setup and configure.
		Currently 'restricted' and 'shared key' WEP do not work.
	www.linuxcult.com /forum/showthread.php?threadid=6433 (2116 words)

	WEP Shared Key wireless encryption and general etc's
		Forum overview » Networking » WEP Shared Key wireless encryption and general etc's
		It's my understanding that, while you can use WEP keys with wireless Linux drivers, the router must be set to OPEN, not pre-shared.
		I had the same problems as you were having and once I changed my router to OPEN I was able to connect with my WEP key just fine.
	www.linuxcompatible.org /thread29809-1.html (1161 words)

	WEP (wired equivalent privacy)
		This key is composed of a 24-bit initialization vector (IV) and a 40-bit WEP key.
		Key management is not specified in the WEP standard; without interoperable key management, keys will tend to be long-lived and of poor quality.
		Since synchronizing the change of keys is tedious and difficult, keys are seldom changed.
	www.networkworld.com /details/715.html (1278 words)

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