Search: in
Transport Layer Security
Transport Layer Security in Encyclopedia Encyclopedia
  Tutorials     Encyclopedia     Videos     Books     Software     DVDs  
       
Encyclopedia results for Transport Layer Security

Transport Layer Security





Encyclopedia results for Transport Layer Security

  1. Datagram Transport Layer Security

    In information technology , the Datagram Transport Layer Security DTLS protocol provides communications privacy for packet information technology datagram protocols. DTLS allows datagram based applications to communicate in a way that is designed to prevent eavesdropping, tampering, or message forgery. The DTLS protocol is based on the stream oriented Transport Layer Security TLS protocol and is intended to provide similar security guarantees. The datagram semantics of the underlying transport are preserved by the DTLS protocol the application will not suffer from the delays associated with stream protocols, but will have to deal with packet reordering, loss of datagram and data larger than a datagram packet size. DTLS is defined in RFC 4347 for use with User Datagram Protocol UDP encapsulation and in RFC 5238 for use with DCCP encapsulation. See also OpenSSL a free and popular implementation of TLS added support for DTLS with version 0.9.8. CyaSSL an open source embedded SSL TLS implementation with DTLS support. External links http www.ietf.org html.charters tls charter.html The IETF TLS Workgroup http crypto.stanford.edu nagendra papers dtls.pdf The Design and Implementation of Datagram TLS http www.eldos.com sbb desc ssl.php SSLBlackbox components for Windows and .NET software development with support for DTLS http www.cisco.com en US products ps8411 tsd products support series home.html AnyConnect popular VPN Client that uses TLS and DTLS http www.yassl.com yaSSL.com SSL TLS implementation with support for DTLS in version 1.0.3 http libsystools.sourceforge.net libsystools a TLS DTLS open source library for Windows Linux using OpenSSL. FOLDOC crypto stub Category Cryptographic protocols Category Internet protocols Category Session layer protocols de Datagram Transport Layer Security es Datagram Transport Layer Security eu Datagram Transport Layer Security fr Datagram Transport Layer Security ...   more details



  1. Multiplexed Transport Layer Security

    In information technology , the Transport Layer Security TLS protocol provides connection security with mutual authentication, data confidentiality and integrity, key generation and distribution, and security parameters negotiation. However, missing from the protocol is a way to multiplex application data over a single TLS session. Multiplexed Transport Layer Security MTLS protocol is a new TLS sub protocol running over Transport Layer Security TLS or Datagram Transport Layer Security DTLS . The MTLS design provides application multiplexing over a single TLS or DTLS session. Therefore, instead of associating a TLS connection with each application, MTLS allows several applications to protect their exchanges over a single TLS session. MTLS is currently in draft stage http tools.ietf.org html draft badra hajjeh mtls 05 which expired in October 2009. See also OpenSSL a free and popular implementation. GnuTLS a free implementation whose licensing is compatible with the GNU General Public License GPL . External links http www.ietf.org dyn wg charter tls charter.html The IETF TLS Workgroup http tools.ietf.org html draft badra hajjeh mtls 05 MTLS Draft http crypto.stanford.edu nagendra papers dtls.pdf The Design and Implementation of Datagram TLS Category Cryptographic protocols Category Internet protocols crypto stub bg SSL de Datagram Transport Layer Security fi TLS fr Secure socket layer ja Secure Socket Layer pt SSL ...   more details



  1. Wireless Transport Layer Security

    Wireless Transport Layer Security WTLS is a security protocol, part of the Wireless Application Protocol WAP stack. It sits between the Wireless transaction protocol WTP and WAP Datagram Protocol WDP layers in the WAP communications stack. Overview WTLS is derived from Transport Layer Security TLS . WTLS uses similar semantics adapted for a low bandwidth mobile device. The main changes are Compressed data structures Where possible packet sizes are reduced by using bit fields, discarding redundancy and truncating some cryptographic elements. New certificate format WTLS defines a compressed certificate format. This broadly follows the X.509 X.509 v3 certificate structure, but uses smaller data structures. Packet based design TLS is designed for use over a data stream. WTLS adapts that design to be more appropriate on a packet based network. A significant amount of the design is based on a requirement that it be possible to use a packet network such as Short message service SMS as a data transport. WTLS has been superseded in the WAP Wireless Application Protocol 2.0 standard by the End to end Transport Layer Security Specification. Security WTLS uses modern cryptography cryptographic algorithms and in common with TLS allows negotiation of cryptographic suites between client and server. Algorithms An incomplete list Key Exchange and Signature RSA Elliptic curve cryptography Elliptic Curve Cryptography ECC Symmetric Encryption Data Encryption Standard DES Triple DES RC5 Message Digest MD5 SHA1 Security criticisms Encryption Decryption at the gateway in the WAP architecture the content is typically stored on the server as uncompressed WML an XML DTD . That content is retrieved ... standards Category Transport layer protocols de Wireless Transport Layer Security es Wireless Transport Layer Security fr Wireless Transport Layer Security sv Wireless Transport Layer Security ... from TLS, it is not clear that the changes made to WTLS have not in some way weakened the security ...   more details



  1. Transport Layer Security

    Cleanup date October 2010 Transport Layer Security TLS and its predecessor, Secure Sockets Layer SSL ..., T. and E. Rescorla title The Transport Layer Security TLS Protocol Version 1.1, RFC 4346 publish ... using the term Datagram Transport Layer Security DTLS . A prominent use of TLS is for securing World ... server is added. In order to provide the server name, RFC 4366 Transport Layer Security TLS Extensions ... 1.2, which is specified in RFC 5246 The Transport Layer Security TLS Protocol Version 1.2 . The current ..., POP3 and ACAP services that allow the server and client to use transport layer security to provide ... Cipher Suites to Transport Layer Security TLS . The 40 bit cipher suites defined in this memo appear ... 1.1 to initiate Transport Layer Security TLS over an existing TCP connection. This allows unsecured ... symmetric ciphers. RFC 3546 Transport Layer Security TLS Extensions , adds a mechanism for negotiating ... by RFC 4366. RFC 3749 Transport Layer Security Protocol Compression Methods , specifies the framework for compression methods and the DEFLATE compression method. RFC 3943 Transport Layer Security TLS ... Suites to Transport Layer Security TLS . RFC 4162 Addition of SEED Cipher Suites to Transport Layer ... based on pre shared keys. RFC 4347 Datagram Transport Layer Security specifies a TLS variant that works over datagram protocols such as UDP . RFC 4366 Transport Layer Security TLS Extensions ... Curve Cryptography ECC Cipher Suites for Transport Layer Security TLS . RFC 4507 Transport Layer Security ... Encryption for Transport Layer Security TLS . RFC 5054 Using the Secure remote password protocol Secure ... Layer Security TLS Authentication , obsoleted by RFC 6091. RFC 5746 Transport Layer Security TLS Renegotiation Indication Extension . RFC 6091 Using OpenPGP Keys for Transport Layer Security TLS Authentication . See also Portal Cryptography Certificate authority Datagram Transport Layer Security Extended Validation Certificate Multiplexed Transport Layer Security Obfuscated TCP Public key certificate ...   more details



  1. Transport Layer

    OSI model IPstack In computer networking , the Transport Layer provides end to end communication services for applications ref RFC 1122, 1.1.3. The transport layer provides end to end communication services for applications. ref within a layered architecture of network components and protocols. The transport layer provides convenient services such as connection oriented communication connection oriented .... The definitions of the Transport Layer are slightly different in these two models. This article ... interface to internet hosts, as opposed to the OSI Model Layer 4 Transport Layer OSI model definition of the Transport Layer . The most well known transport protocol is the Transmission Control Protocol ... SCTP . Services There are many services that can be optionally provided by a Transport Layer protocol ... Layer in the TCP IP model , but of the Session Layer in the OSI model. Analysis The Transport ... data packets, and adding source and destination port numbers in the header of each Transport Layer ... model, this function is supported by the Session Layer . Some Transport Layer protocols, for example .... Finally, some Transport Layer protocols, for example TCP, but not UDP, provide end to end reliable ... oriented communication is implemented at network layer or data link layer rather than the Transport ... networks. Protocols The exact definition of what qualifies as a transport layer protocol is not firm ... 20 60 Bytes 12 Bytes Variable Chunk Header 12 or 16 bytes Transport Layer packet entity Datagram Datagram ... References reflist Category Internet protocols Category Transport layer protocols Category OSI protocols ... . Transport layers are contained in both the TCP IP model RFC 1122 , ref RFC 1122, Requirements ... underlying message formats. Same order delivery The Network layer doesn t generally guarantee that packets ... Packets may be lost during transport due to network congestion and errors. By means of an error detection code , such as a checksum , the transport protocol may check that the data is not corrupted ...   more details



  1. Kernel Independent Transport Layer

    Kernel Independent Transport Layer KITL is an interface in Microsoft WinCE designed to provide an easy way for you to support any debugging service ref http msdn2.microsoft.com en us library ms901824.aspx Kernel Independent Transport Layer Bot generated title ref . References reflist Category Windows CE Compu soft stub ...   more details



  1. Transport Layer Interface

    In computer networking , the Transport Layer Interface TLI was the networking Application Programming Interface API provided by AT&T UNIX System V Release 3 SVR3 in 1987 ref harv Goodheart 1994 p 11 ref and continued into Release 4 SVR4 . ref name Goodheart harv Goodheart 1994 p 17 ref TLI was the System V counterpart to the Berkeley Software Distribution BSD Berkeley sockets sockets programming interface, which was also provided in UNIX System V Release 4 SVR4 . ref name Goodheart TLI was later standardized as XTI , the X Open Transport Interface . TLI and Sockets It was originally expected that the Open Systems Interconnection OSI protocols would supersede TCP IP, thus TLI is designed from an OSI model OSI  model oriented viewpoint, corresponding to the OSI transport layer . Otherwise, TLI looks similar, API wise, to sockets. TLI and XTI were widely used and, up to UNIX 98, were preferred over the POSIX Sockets API. ref name Xns harv XNS 5.2 ref TLI and XTI are still supported in SVR4 derived operating systems and operating systems conforming to branded UNIX UNIX 95, UNIX 98 and UNIX 03 Single UNIX Specifications such as Solaris operating system Solaris as well as classic Mac OS , in the form of Open Transport . Under UNIX 95 XPG4 and UNIX 98 XPG5.2 , XTI was the preferred and recommended supported API for new transport protocols. ref harv XNS 5 ref ref name Xns As a result of deliberations by the Austin Group with the goal of bringing flavors of UNIX that do not provide STREAMS , such as BSD and Linux , under the Single UNIX Specification, the UNIX 03 Single UNIX Specification both declares STREAMS as optional, and declares POSIX Sockets as the preferred API for new transport protocols. See also X Open Transport Interface , formally standardized successor to TLI. X Open Portability Guide , the predecessor to POSIX Computer networking , outlining the major networking ... programming interfaces de Transport Layer Interface ja Transport Layer Interface ru ...   more details



  1. Simple Authentication and Security Layer

    a data security layer offering data integrity and data confidentiality services. DIGEST MD5 provides an example of mechanisms which can provide a data security layer. Application protocols that support SASL typically also support Transport Layer Security TLS to complement the services offered by SASL ... e.g., for protocols already using IPsec or Transport Layer Security TLS ANONYMOUS , for unauthenticated ...Simple Authentication and Security Layer SASL is a Software framework framework for authentication and data security in Internet communications protocol protocol s. It decouples authentication mechanisms from application protocols, in theory allowing any authentication mechanism supported by SASL to be used ... offers a data security layer. NTLM , an NT LAN Manager authentication mechanism GSSAPI , for Kerberos protocol Kerberos V5 authentication via the Generic Security Services Application Program Interface GSSAPI . GSSAPI offers a data security layer. MSN Chat GateKeeper and GateKeeperPassport GateKeeper ... and Presence Protocol XMPP Apache Subversion Subversion s custom svn protocol See also Transport Layer Security TLS External links RFC 4422 Simple Authentication and Security Layer SASL obsoletes RFC 2222 RFC 4505 Anonymous Simple Authentication and Security Layer SASL Mechanism obsoletes RFC 2245 ... access control protocols ca Simple Authentication and Security Layer cs SASL de Simple Authentication and Security Layer es SASL fr Simple Authentication and Security Layer ja Simple Authentication and Security Layer pl Simple Authentication and Security Layer ru Simple Authentication and Security Layer sr GNU SASL uk SASL ... SASL library providing generic security for various applications ref cite web url http citeseerx.ist.psu.edu viewdoc download?doi 10.1.1.127.7472&rep rep1&type pdf title GENSEC Designing a security ... pages 13 format PDF accessdate 2010 03 28 quote The idea of a generic security API is not new ... to implement ...   more details



  1. Top Layer Security

    Top Layer Security company logo File Top Layer Logo.jpg Top Layer Security Logo company type publicly ... of Sales, Corero Security Systems, br Steve Turner, Vice President of Technology Solutions and Services, Corero Security Systems industry Network Security and Computer Security num employees 70 homepage http www.toplayer.com Top Layer Security Top Layer Security Top Layer Security is a leading global ... risks associated with network borne cyber threats. In March 2011, Top Layer became part of the Security Systems Division of Corero plc. Top Layer is headquartered in Massachusetts, USA with sales and services support worldwide. . History 1997 Founded as BlazeNet Top Layer Security was founded in 1997 ... of the original founders, including Barry Spinney. 2008 Rebranded as Top Layer Security In 2008, the Company began doing business as Top Layer Security and continues today as a private company ... Corero Acquires Top Layer Security On March 2, 2011, Corero plc AIM CORO announced the acquisition of Top Layer Security. With the launch of eight new IPS products in 2010, Top Layer saw the opportunity .... Corero plans to build a network security business with Top Layer providing the core platform. References Network World Oct 18, 1999 Top Layer Switch Lives Up To Promises Network World Oct 13, 2002 Top Layer enters DDoS market with the Attack Mitigator Information security Information Security Magazine ... 1 March 2011.pdf Corero Announces Acquisition of Top Layer Security Category Computer security ... at Digital Equipment Corporation . 1999 Renamed to Top Layer Networks The BlazeNet team brought their first ... changed its name to Top Layer Networks, Inc. 2000 2007 The Company s Product lining product line expanded beyond the AppSwitch into a series of network security appliances, including AppSafe, IDSB ... Top Layer named as a winner of the Red Herring 100 award 6.9.2010 http www.toplayer.com content cm pr253.jsp Top Layer Releases EC Series of IPS Solutions 12.10.2010 http www.toplayer.com content cm ...   more details



  1. HTTP Strict Transport Security

    HTTP Strict Transport Security HSTS is a proposed web security policy mechanism where a web server declares ... a Hypertext Transfer Protocol HTTP response header field named Strict Transport Security . The policy ... websec strict transport sec title HTTP Strict Transport Security date latest revision accessdate 8 Mar ... Transport Security 00 date 17 June 2010 accessdate 22 July 2010 ref and it has undergone at least ... name was altered to HTTP Strict Transport Security from Strict Transport Security . The reason ... Transport Security . The latest community version of the then named STS specification was published ... sec 06.plain.html title Strict Transport Security 06 date 18 December 2009 accessdate 23 December ... hodges strict transport sec 05.plain.html title Strict Transport Security 05 date 18 September 2009 ... before accessing the server. If the security of the connection cannot be ensured e.g. the server s Transport Layer Security TLS certificate is self signed , show an error message and do not allow the user ... sites. ref cite web title Strict Transport Security url http www.chromium.org sts accessdate 22 March ... security author Jeff Hodges title Firesheep and HSTS HTTP Strict Transport Security date 31 October ... sts author Adam Langley title Strict Transport Security date 8 July 2010 accessdate 22 July 2010 ref Support Websites PayPal sets the Strict Transport Security header on their https only website. ref http webscannotes.com ?page id 1191 Screenshot of Paypal s HTTP request Strict Transport Security ... author Jeff Hodges title fyi Strict Transport Security specification date 18 September 2009 accessdate ... hackademix.net 2009 09 23 strict transport security in noscript author Giorgio Maone title Strict Transport ... Transport Security The Chromium Projects ref name chromium sts cite web url http dev.chromium.org sts author The Chromium Developers title Strict Transport Security The Chromium Projects date 17 November 2010 accessdate 17 November 2010 ref Implementation Strict Transport Security headers must be sent ...   more details



  1. Public transport security

    File SPF Transcom 03.jpg thumb right Member of Singapore s Public Transport Security Command keeping watch over train passengers. File CI Car Overhaul Shop S jeh 2.jpg thumb right Rail yard enclosed with security fencing. However, this is primarily intended to deter vandalism such as Graffiti tagging . Public transport security refers to measures taken by a mass transit system to keep its passengers and employees safe, to protect the carrier s equipment, and to make sure other violations do not occur. This includes the enforcement of various Public transport Regulations rules and regulations , human ... transport security has become a major issue around the world since the September 11 attacks , and especially ... transit security 0923,0,5812385.story ref while in the United Kingdom, public transport, due to its ... searches of public transport users, they are often considered security theater , because random searches ... of security theater therefore argue that even very good security around public transport is relatively useless, as it only moves the threat from transport to other targets such as movie theaters. They instead ... 9 April 2010 ref See also Armoured bus Prohibited activities on public transport References Reflist 2 Public transport Category Security Category Public transport ... Transit Security Funds first Shailagh last Murray date 12 July 2005 accessdate 22 May 2010 ref ref ... 22 May 2010 title U.S. Senate rejects increase in funds for transit security ref . Grants have been given in order to improve security to mass transit systems in the United States , ref http www.empirestatenews.net ... Edinburgh first Ross last Lydall ref Security measures It has been proposed that extra security screening ... transport. However, this would also have a number of negative side effects, which could outweigh the benefits, among them ref name OLDTACTIC increased and prohibitive costs reduced public transport ... needed date February 2010 as the likelihood of terror attacks on public transport is, for the individual ...   more details



  1. Public Transport Security Command

    from the Public Transport Security Command surveys and assists the public on new year s day in 2010 ... officers. References reflist 2 commonscat Public Transport Security Command Singapore Police Force ...   more details



  1. Layer

    Layer may refer to wiktionary A layer of archaeological deposits in an Excavation archaeology excavation A layer hen , a hen raised to produce eggs Stratum , a layer of rock or soil with internally consistent characteristics Thermocline , a layer within a body of water where the temperature changes rapidly with depth Layering , a technique for plant propagation Layered hair , a popular hair styling technique Layering clothing , the wearing of multiple layers of clothing for practical or fashion purposes Places Layer de la Haye is a village in Essex, England. In fiction Mega Man X8 Maverick Hunters Layer , a female Maverick Hunter in the Mega Man X series In science Layer electronics , a single thickness of some material covering a surface F region Appleton Layer , or F Layer telecommunications In computing and technology Abstraction layer OSI model layers Internet protocol suite layers 2D computer graphics Layers , layers in 2D computer graphics Layers 28digital image editing 29 map layer a set of graphical information, especially in geographic information system s layer object oriented design DVD layer, such as in DVD Dual layer recording Layer HTML tag a deprecated < iframe> like tag, unique to Netscape 4 browsers A layer of objects in CAD standards CAD disambig de Layer eo Tavolo es Capa desambiguaci n he ja lt lietuvi kai ru uk ...   more details



  1. Canadian Air Transport Security Authority

    Infobox Government agency agency name Canadian Air Transport Security Authority logo CATSA Logo.jpg logo width logo caption seal caption formed April 1, 2002 jurisdiction Government of Canada Federal government of Canada headquarters Ottawa , Ontario employees 390 2008 minister1 name Chuck Strahl minister1 pfo Minister of Transport Canada Minister of Transport, Infrastructure and Communities chief1 name Kevin McGarr chief1 position President and CEO chief2 name D. Ian Glen chief2 position Chairman of the Board of Directors regulatory agency Transport Canada website http www.catsa.gc.ca CATSA footnotes The Canadian Air Transport Security Authority CATSA lang fr Administration canadienne de la s ret du transport a rien , or ACSTA is a Canadian Crown corporation responsible for the airport security security screening at the 89 designated airports in Canada. CATSA reports to the Government of Canada through the Minister of Transport Canada Minister of Transport , who is Responsible government responsible to the Parliament of Canada . CATSA was officially formed April 1, 2002, following the September 11, 2001 attacks September 11, 2001, terrorist attacks in the United States. After September ... of the airlines. CATSA shares responsibility for civil aviation security with several federal government departments and agencies, air carriers and airport operators. Transport Canada is Canada s designated national civil aviation security regulator, under the standards established ... security companies. Mission br To protect the public by securing critical elements of the air ... security through commitment to its mission and through operational and corporate excellence ... Sky marshal Canada Canadian Air Carrier Protection Program Transportation Security Administration ... Canadian federal Crown corporations Category Aviation in Canada Category Security Canada airport stub Canada stub fr Administration canadienne de la s ret du transport a rien ...   more details



  1. S-layer

    An S layer surface layer is a part of the cell envelope commonly found in bacteria , as well as among archaea . ref http www.sciencedirect.com science? ob ArticleURL& udi B6T9N 44M1F9J 4& user 10& origUdi B7CTD 4SH7GMN 7& fmt high& coverDate 01 2F31 2F2002& rdoc 1& orig article& acct C000050221& version 1& urlVersion 0& userid 10&md5 cddfffd5c87e8cc6c0c119e71873cd77 S layers on cell walls of cyanobacteria Micron Volume 33, Issue 3, January 2002, Pages 257 277 doi 10.1016 S0968 4328 01 00031 2 ref It consists of a monomolecular layer composed of identical proteins or glycoproteins . This two dimensional structure is built via self assembly and encloses the whole cell surface. Thus, the S layer protein can represent up to 10 15 of the whole protein content of a cell ref name ref1 cite journal author Messner P, Sleytr U title Crystalline bacterial cell surface layers journal Adv. Microb. Physiol ... name ref2 cite journal author Pum D, Messner P, Sleytr U title Role of the S layer in morphogenesis ... S layer proteins are poorly conserved or not conserved at all, and can differ markedly even between ..., the S layer is composed of one P1 , two P2 , three P3 , four P4 , or six P6 identical protein ... contain surface layer homology SLH domains, the binding occurs to the peptidoglycan and to a secondary ... electrostatic interactions between the positively charged N terminus of the S layer protein and a negatively charged secondary cell wall polymer. In Gram negative archaea , S layer proteins possess a hydrophobic ... , the S layer proteins bind to pseudomurein or to methanochondroitin. Biological functions of the S layer For many bacteria, the S layer represents the outermost interaction zone with their respective environment. Its functions are very diverse and vary from species to species. In Archaea the S layer ... and the cytoplasmic membrane References reflist DEFAULTSORT S Layer Category Cell anatomy Category Membrane biology cs S vrstva de S Layer es Capa S fr Couche S it S Layer ja S tr S tabakas ...   more details



  1. Internet Layer

    to this host by passing it to the appropriate Link Layer implementation for incoming packets, capture packets and pass the packet payload up to the appropriate Transport Layer protocol, if appropriate ... Control Protocol TCP in the Transport layer Transport Layer . Integrity of packets is guaranteed ...The Internet Layer is a group of internetworking methods in the Internet Protocol Suite , commonly also ... that are used to transport datagrams packets from the originating host across network ... is defined for this purpose by the Internet Protocol IP . The Internet Layer derives its name from ... . Internet Layer protocols use IP based packets. The Internet Layer does not include the protocols that define ... Layer . A particularly crucial aspect in the Internet Layer is the Robustness Principle Be liberal ... Internet service to many other users. IPstack Purpose The Internet Layer has three basic functions ... to end transmissions don t exceed the maximum discovered. In its operation, the Internet Layer is not responsible ... in the Internet Layer are the Internet protocol IP . It is implemented in two versions, IPv4 ... is used by IPv4 hosts and adjacent multicast routers to establish multicast group memberships. Security IPsec Internet Protocol Security IPsec is a suite of protocols for securing Internet Protocol ... to OSI model The Internet Layer of the TCP IP model is often compared directly with the Network Layer Layer 3 in the Open Systems Interconnection OSI protocols OSI protocol stack. Although they have ... in these layers are different between the models. OSI s Network Layer is a catch all layer for all protocols that facilitate network functionality. The Internet Layer, on the other hand, is specifically ... Network Layer is often where described to include protocols such as the Address Resolution Protocol ARP which was placed in Link Layer by the original TCP IP architects RFC 1122, RFC 1123 ... standards documents the Internet Layer is still sometimes improperly called network layer , in analogy ...   more details



  1. Layer 8

    in 1998. Other uses Linux Gazette carries a regular column called Layer 8 Linux Security ref http www.linuxgazette.net 164 kachold.html Layer 8 Linux Security ref . References references Category Network architecture it Layer 8 ...Layer 8 is humorous Internet jargon used to refer to a nonexistent user or political layer on top of the OSI model of computer networking. ref Citation last Gregg first Michael title OSI Securing the Stack, Layer 8 Social engineering and security policy journal TechTarget date 2007 05 01 year 2007 url http searchnetworking.techtarget.com tip 0,289483,sid7 gci1253302,00.html . ref ref http www.ncsu.edu it cmptplans layer8 NCSU Layer 8 Initiative ref The OSI model is a 7 layer abstract model that describes ... other, allowing for abstraction of specific functions in each one. The top 7th layer is the Application Layer describing methods and protocols of software applications. It is then held that the user is the 8th layer. Since the OSI layer numbers are commonly used to discuss networking topics, a troubleshooter may describe an issue caused by a user to be a layer 8 issue, similar to the PEBKAC acronym ... article on the eighth layer ref Political economic theory ref Citation last Mosco first Vincent title ... 1996 isbn 0803985606 . ref holds that the 8th layer is important to understanding the OSI Model. Political ... the technologies comprising layers 1 7 of the OSI Model. An 8th layer is sometimes said to be implemented ... in Profibus Verify source date April 2008 . A network guru t shirt from the 1980s shows Layer 8 as the financial layer, and Layer 9 as the political layer. ref https www.isc.org store logoware clothing isc 9 layer osi model cotton t shirt ISC 9 layer t shirt ref Similar pseudo layers in the TCP IP model In the TCP IP model , the 4 layer model of the Internet , the 5th layer is analogously sometimes described as the political layer and the 6th as the religious layer . This appears in Request For Comments ...   more details



  1. Service layer

    . ref . The lower layers may also be named control layer and transport layer the transport layer is also referred to as the access layer in some architectures . Citation needed date February 2009 The concept of service layer is used in contexts such as Intelligent network s IN , WAP , 3G and IP Multimedia ... date April 2009 In intelligent network s IN and cellular networks, service layer is a conceptual layer within a network service provider architecture. It aims at providing middleware that serves third party value added service s and applications at a higher application layer . The service layer ... open and secure Application Programming Interface s APIs by application layer servers owned by third party content provider s. The service layer also provides an interface to core networks at a lower resource layer ref http books.google.com books?id j2 6yEHS0jwC&pg PA16&dq 22service layer 22 telecommunications&lr ... architecture , the concept of service layer has a different meaning. Service layer in IMS The service layer of an IP Multimedia Subsystem IMS architecture provides multimedia services to the overall IMS network. This layer contains network elements which connect to the Serving CSCF Call Session Control ... protocol. Elements of the IMS service layer The network elements contained with in the service layer are generically referred to as service platforms however the 3GPP specification 3GPP TS 23.228 ... Applications for Mobile networks Enhanced Logic CAMEL . Service layer in SOA In Service oriented architecture SOA , the service layer is the third layer in a five abstraction layer model. The model consists of Object layer, Component layer, Service layer, process layer and Enterprise layer. ref http books.google.com books?id NISyExeJ5mAC&pg PA88&dq 22service layer 22&lr &hl sv PPA87,M1 Service oriented ..., 2005. ISBN 0131870025, 9780131870024 ref . The service layer can be considered as a bridge between ... OSA Hierarchical internetworking model Multi tier architecture Category Application layer ...   more details



  1. Presentation Layer

    can be thought of as the key functionality of the Presentation Layer. Encryption is typically done at this level too, although it can be done on the Application Layer Application , Session Layer Session , Transport Layer Transport , or Network Layer Network Layers each having its own advantages ...unreferenced date October 2009 OSIModel The Presentation Layer is Layer 6 of the seven layer OSI model of computer network ing. The Presentation Layer is responsible for the delivery and formatting of information to the application layer for further processing or display. It relieves the application layer of concern regarding syntactical differences in data representation within the end User computing ... text Computer file file to an ASCII coded file. The Presentation Layer is the lowest layer at which ... in form of datagrams or packets between hosts. This layer deals with issues of string representation ... code thisisastring 0 code . The idea is that the application layer should be able to point at the data to be moved, and the Presentation Layer will deal with the rest. what is this rest? Serialization ... are standardized in this layer. Two common examples are objects in object oriented programming , and the exact ... Protocol HTTP , generally regarded as an application layer protocol, has Presentation Layer aspects ... in the Application Layer. Within the service layering semantics of the OSI network architecture, the Presentation Layer responds to service requests from the Application Layer and issues service requests to the Session Layer . Services Encryption data compression Compression Sublayers The Presentation Layer is composed of two sublayers CASE Common Application Service Element SASE Specific Application Service Element CASE The CASE sublayer provides services for the Application layer Application Layer and request services from the Session Layer . It provides support for common application services ... Category Presentation layer protocols ar ca Capa de presentaci cs Prezenta n vrstva ...   more details



  1. Boundary layer

    transport aircraft, much attention is paid to controlling the behavior of the boundary layer ...Image Boundarylayer.png 320px thumb right Boundary layer visualization, showing transition from laminar to turbulent condition In physics and fluid mechanics , a boundary layer is that layer of fluid in the immediate ... in detail. In the Earth s atmosphere , the planetary boundary layer is the air layer near the ground ... the boundary layer is the part of the flow close to the wing. The boundary layer effect occurs at the field region in which all changes occur in the flow pattern . The boundary layer distorts surrounding ... to their structure and the circumstances under which they are created. The thin shear layer which develops on an oscillating body is an example of a Stokes boundary layer , whilst the Blasius boundary layer refers to the well known Similitude model similarity solution for the steady boundary layer attached to a flat plate held in an oncoming unidirectional flow. When a fluid rotates, viscous ... of an Ekman layer . Thermal boundary layers also exist in heat transfer. Multiple types of boundary ... boundary layer was first defined by Ludwig Prandtl in a paper presented on August 12, 1904 at the third ... layer, where viscosity is dominant and the majority of the drag physics drag experienced by a body immersed in a fluid is created, and one outside the boundary layer where viscosity can be neglected ... . The majority of the heat transfer to and from a body also takes place within the boundary layer, again allowing the equations to be simplified in the flow field outside the boundary layer. The thickness of the velocity boundary layer is normally defined as the distance from the solid body at which ..., recognises the fact that the boundary layer represents a deficit in mass flow compared to an inviscid ... layer, governed by the boundary layer equations, below. The thermal boundary layer thickness is similarly ... 1, the thermal boundary layer is thinner than the velocity boundary layer. If the Prandtl number is less ...   more details



  1. Surface layer

    , sediments et cetera transport ed to or from the interface. The term boundary layer is used in meteorology and in oceanography physical oceanography . The atmospheric surface layer is the lowest part of the atmospheric boundary layer typically the bottom 10 where the log wind profile is valid . The ocean ...Image Surface layer.jpg thumb 400px The surface layer is the layer in a fluid where the scale of turbulent ... to the surface. The surface layer is the layer of a turbulent fluid most affected by interaction with a solid ... ocean marine surface layer, at the air sea Interface chemistry interface . Mathematical Formulation A simple Mathematical model model of the surface layer can be derived by first examining the turbulent ..., MA pages 129 130 chapter Chapter 5 The Planetary Boundary Layer ref Using Reynolds Decomposition ... turbulent transport of horizontal turbulent momentum, math u w math math u 2 left overline ... frac u k ln frac z z o math . So we see that the mean flow in the surface layer has a logarithm ic relationship with depth. The Surface layer in oceanography The surface layer is studied in oceanography ... of a surface layer. Discrepancies with traditional theory The logarithmic flow profile has long ... layer in which turbulent eddies are enhanced by the action of surface waves. ref name craig ... Michael L. Banner title Modeling Wave Enhanced Turbulence in the Ocean Surface Layer journal Journal ... It is becoming clear that the surface layer of the ocean is only poorly modeled as being up against ... of turbulent kinetic energy within the surface layer. ref name Agrawal Diurnal cycle After nighttime convection over the ocean, the turbulent surface layer is found to completely decay and restratify ... decay and restratification in the Equatorial Ocean surface layer following nighttime convection ... 12 10 2008 ref See also mixed layer density salinity References this empty section displays references defined elsewhere reflist DEFAULTSORT Surface Layer Category Boundary layer meteorology Category ...   more details



  1. Ekman layer

    transport Tea leaf paradox References reflist physical oceanography Category Boundary layer meteorology ...Image Ekman layer.jpg thumb 350px The Ekman Layer is the layer in a fluid where the flow is the result of a balance between pressure gradient, Coriolis and turbulent drag forces. In the picture above, the wind ... of water. The Ekman Layer is the layer in a fluid where there is a force balance between pressure ... . History Ekman developed the theory of the Ekman layer after Fridtjof Nansen observed that iceberg ... edition 1st year 1994 publisher Prentice Hall pages 76 77 chapter Chapter 5 The Ekman Layer isbn 0133533018 ref Mathematical Formulation The mathematical formulation of the Ekman layer can be found ... be derived using mixing length theory . Boundary Conditions There are many regions where an Ekman layer ... . We will consider boundary conditions of the Ekman layer in the upper ocean ref name Vallis ... stress of the wind field or ice layer at the top of the ocean. at math z to infty u u g, v v g math ... that when vertically integrated the volume transport associated with the Ekman spiral is to the right of the wind direction in the Northern Hemisphere. Experimental Observations of the Ekman Layer There is much difficulty associated with observing the Ekman layer for two main reasons the theory is too ... wind field because it does not account for the velocity shear in the surface layer . Splitting the boundary layer into the surface layer and the Ekman layer generally yields more accurate results ... 5 The Planetary Boundary Layer isbn 0123540151 ref In the Ocean The Ekman layer, with its distinguishing feature the Ekman spiral, is rarely observed in the ocean. The Ekman layer near the surface of the ocean ... Observations of the Ekman layer have only been possible since the development of robust surface moorings ... the Mixed Layer Experiment . ref name Davis cite journal last Davis first R.E. coauthors R. de Szoeke, and P. Niiler. title Part II Modelling the mixed layer response journal Deep Sea Res. volume 28 ...   more details



  1. Double layer

    The term double layer is used in different scientific disciplines Double layer plasma , in plasma physics Double layer interfacial , in Interface and colloid science Double layer interfacial , in Electrochemistry Double layer biospecific , in Biology DVD R DL Double layer , more properly dual layer , a DVD recording format Depletion region at semiconductor junctions disambig ...   more details



  1. Application Layer

    Messaging Protocol RTP, Real time Transport Protocol Real time publish subscribe RTPS , Real Time Publish ... links Commonscat Application layer protocols http learn networking.com tcp ip how the application layer works How The Application Layer Works refers to Application Layer of the Internet Protocol Suite aka TCP IP Category OSI protocols Category Application layer protocols ca Capa d aplicaci cs Aplika n ... Application layer te th Application layer tr Uygulama tabakas uk ...   more details



  1. Inversion layer

    Inversion layer may refer to one of the following Inversion meteorology , a layer within which an atmospheric property is inverted, i.e., its change is deviated from the normal pattern Inversion layer semiconductors , a layer in a semiconductor material where the type of the majority carriers is change to the opposite under certain conditions disambig ...   more details




Articles 1 - 25 of 203642          Next


Search   in  
Search for Transport Layer Security in Tutorials
Search for Transport Layer Security in Encyclopedia
Search for Transport Layer Security in Videos
Search for Transport Layer Security in Books
Search for Transport Layer Security in Software
Search for Transport Layer Security in DVDs
Search for Transport Layer Security in Store


Advertisement




Transport Layer Security in Encyclopedia
Transport Layer Security top Transport Layer Security
Home - Add TutorGig to Your Site - Disclaimer

©2011-2013 TutorGig.com. All Rights Reserved. Privacy Statement