Network Working GroupJ. Strombergson
Request for Comments: 4194InformAsic AB
Category: Standards TrackL. Walleij
Lunds Tekniska Hogskola
P. Faltstrom
Cisco Systems Inc
October 2005

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free dating chat gay This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the “Internet Official Protocol Standards” (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.alleinerziehende singles frankfurt

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die besten sprüche für online dating This document specifies the S Hexdump Format (SHF), a new, XML-based open format for describing binary data in hexadecimal notation. SHF provides the ability to describe both small and large, simple and complex hexadecimal data dumps in an open, modern, transport- and vendor-neutral format.online dating profile information

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free single ladies chat rooms In the computing, network, and embedded systems communities, several different types of data formats for hexadecimal data are being used. One of the more common formats is known as "S-records" (and several derivatives), which reportedly originated at the Motorola company. The S Hexdump Format is named in its honour.online dating profile introduction examples

free single woman chat Typical uses of these dump formats include executable object code for embedded systems (i.e., "firmware"), on-chip flash memories and filesystems, FPGA configuration bitstreams, graphics and other application resources, routing tables, etc. Unfortunately, none of the formats used are truly open, vendor-neutral, and/or well-defined.online dating profile income

free dating chat australia Even more problematic is the fact that none of these formats are able to represent the large data sizes that are getting more and more common. Data dumps comprised of multiple sub-blocks with different Word sizes, and data sizes spanning anywhere from a few Bytes of data to much larger than 2^32 bits are not handled. Also, the checksums included in these formats are too simplistic and for larger data sizes, they provide insufficient ability to accurately detect errors. Alternatively, the overhead needed for proper error detection is very large.online dating profile what are you passionate about

die 10 besten dating seiten Therefore, the S Hexdump format is an effort to provide a modern, XML-based format that is not too complex for simple tools and computing environments to implement, generate, parse, and use. Yet the format is able to handle large data sizes and complex data structures, and can provide high quality error detection by leveraging standardized cryptographic hash functions.online dating profile describe yourself

die besten dating seiten österreich One of the simplifications introduced in the format is to disallow other number systems such as octal or decimal notation, and to allow for Word sizes of even bytes (8-bit groups) only. This is intentional and was done to simplify implementations aimed for practical present-day applications. Formats aimed for esoteric number systems or odd Word sizes may be implemented elsewhere.partnersuche alleinerziehende mutter jobcenter

partnersuche ch kostenlos online At present, the usage of the SHF format may be mainly for Internet transport and file storage on development machinery. A parser for the XML format is presently not easily deployed in hardware devices, but the parsing and checksumming of the SHF data may be done by a workstation computer, which in turn converts the SHF tokens to an ordinary bitstream before the last step (e.g., of a firmware upgrade) commences.partnersuche alleinerziehende mutter job

partnervermittlung tirol zamg SHF is a dump format only and shall not be confused with similar applications, such as binary configuration formats or patches, which are intended to, for example, alter contents of a core memory. Such applications require the possibility of modifying individual bits or groups of bits in the memory of a machine, and is not the intended usage of the mechanism described in the present document.deutsche single charts top 100 zum reinhören

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free chat line numbers 0800 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [1].online dating profile video

free chat line numbers The key word "Byte" is to be interpreted as a group of 8 bits. The key word "Octet" is another name for Byte.partnersuche alleinerziehende mutter hilfe

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free dating site in berlin The key word "Dump" is to be interpreted as a sequence of Blocks, which may or may not be in a particular order. A Dump typically represents some non-continuous, interesting parts of the memory of a computer, such that the Dump as a whole has a certain meaning, for example (but not limited to) a complete firmware for an embedded system.online dating profile what to write

free dating chat mobile The expression "2^n" is to be interpreted as the value two (2) raised to the n:th power. For example, 2^8 equals the value 256.online dating profil tipps

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free single parent chat sites In the embedded systems domain, 8- and 16-bit processors are still used in large numbers and will continue to be used for any foreseeable future. Simultaneously, more and more systems are using 64-bit and even larger Word sizes.partnersuche alleinerziehende mutter partnersuche

beste datingseite kostenlos SHF supports all of these systems by allowing the Word size to be specified. The Word size MUST be an integer number of Bytes and at least one (1) Byte.online dating profile questions

partnersuche russland männer SHF is able to represent both large and small data Blocks. The data Block MUST contain at least one (1) Word. Additionally, the data Block MUST NOT be larger than (2^64)-1 bits.online dating profile quotes

completely free dating chat sites The SHF Dump MUST contain at least one (1) data Block. The maximum number of Blocks supported is 2^64. Each data Block in the Dump MAY have different Word sizes and start at different addresses.best online dating profile quotes

free chat and flirt sites The checksum (or message digest) used to verify the correctness or data integrity of each Block is 20 Bytes (160 bits) long. The digest MUST be calculated on the data actually represented by the SHF data Block, NOT the representation, i.e., NOT the ASCII-code. SHA-1 is only able to calculate a digest for a data Block no larger than (2^64)-1 bits and this limits the size of each data Block in SHF to (2^64)-1 bits.common online dating profile questions

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american dating in london The SHF format consists of an XML data structure representing a Dump. The Dump consists of a Dump header section and one (1) or more Block sections containing data. Each Block of data is independent of any other Block.typical online dating profile questions

single american living in london A short, symbolic example of an SHF Dump is illustrated by the following structure:partnersuche alleinerziehende mutter youtube

<dump name="(Human readable string)" blocks="(64-bit value)">
  <block name="(Human readable string)" start_address="(64-bit
         value)" word_size="(64-bit value)" length="(64-bit value)"
         checksum="(20-Byte digest)">
     (Data)
  </block>
</dump>

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american girl dating in london The header section comprises the Dump tag, which includes the following attributes:partnersuche in neuruppin

  • name: A compulsory string of arbitrary length used by any interested party to identify the specific SHF Dump.
  • blocks: An optional 64-bit hexadecimal value representing the number of Blocks in the specific SHF Dump. Whenever available, this value should be supplied. However, there are potential scenarios where the number of Blocks cannot be given beforehand. If the value is present, it should be verified by implementers; if the value is untrue, the behaviour is implementation-defined.

meet american singles in london After the opening Dump tag, one or more subsections of Blocks must follow. Finally, the complete SHF Dump ends with a closing Dump tag.alleinerziehende singles hamburg

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partnersuche ch kostenlos runterladen The Block subsection contains a Block tag and a number of data words. The Block tag includes the following attributes:alleinerziehende singles köln

  • name: A compulsory string of arbitrary length used by any interested party to identify the specific Block.
  • start_address: A compulsory, 64-bit hexadecimal value representing the start address in Bytes for the data in the Block.
  • word_size: A compulsory 64-bit hexadecimal value representing the number of Bytes (the width) of one Word of the data.
  • length: A compulsory hexadecimal representation of an unsigned 64-bit integer indicating the number of Words following inside the Block element. If this value turns out to be untrue, the Block MUST be discarded.
  • checksum: A compulsory hexadecimal representation of the 20 Byte SHA-1 digest of the data in the Block.

partnersuche deutschland gratis inserate The total size of the data in the Block (in bits) is given by the expression (8 * word_size * length). The expression MUST NOT be larger than (2^64)-1.alleinerziehende singles berlin

free chat lines phone After the opening Block tag, a hexadecimal representation of the actual data in the Block follows. Finally, the Block section ends with a closing Block tag.online dating writing a profile

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dating sites for switzerland The contents of the element named "block" and the attributes "blocks", "address", "word_size" and "checksum" should only contain the characters that are valid hexbyte sequences. These are:online dating profile about me examples

 whitespace ::= (#x20 | #x9 | #xC | #xD | #xA)
 hexdigit   ::= [0-9A-Fa-f]
 hexbytes   ::= whitespace* hexdigit (hexdigit|whitespace)*

dating sites schweiz quote A parser reading in an SHF file should silently ignore any other characters that (by mistake) appear in any of these elements or attributes. These alien characters should be treated as if they did not exist. Also note that "whitespace" has no semantic meaning; it is only valid for the reason of improving the human readability of the Dump. Whitespace may be altogether removed and the hexbyte sequences concatenated if desired. Notice that the fact that word size is to be given in a number of bytes implies that the number of hexadecimal digits inside a block need to be even. Malformed blocks should be ignored by implementations.online dating profile for a man

<!--
  DTD for the S Hexdump Format, as of 2003-10-10
  Linus Walleij, Joachim Strombergson, Patrik Faltstrom 2003

  Refer to this DTD as:

  <!ENTITY % SHF PUBLIC "-//IETF//DTD SHF//EN"
             "http://ietf.org/dtd/shf.dtd">
       %SHF;
-->
<?xml version="1.0" encoding="UTF-8"?>

<!ELEMENT dump (block)+>
<!ATTLIST dump
       name          CDATA    #REQUIRED
       blocks        CDATA    #IMPLIED>

<!ELEMENT block (#PCDATA)>
<!ATTLIST block
       name          CDATA    #REQUIRED
       address       CDATA    #REQUIRED
       word_size     CDATA    #REQUIRED
       length        CDATA    #REQUIRED
       checksum      CDATA    #REQUIRED>

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dating sites schweiz quoten This section contains three different SHF examples, illustrating the usage of SHF and the attributes in SHF.partnervermittlung in tirol

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<?xml version="1.0" encoding="UTF-8"?>
<dump name="Simple SHF example" blocks="01">
  <block name="Important message in hex format" address="0400"
    word_size="01" length="1f"
    checksum="5601b6acad7da5c7b92036786250b053f05852c3">
      41 6c 6c 20 79 6f 75 72 20 62 61 73 65 20 61 72
      65 20 62 65 6c 6f 6e 67 20 74 6f 20 75 73 0a
  </block>
</dump>

dating sites schweiz xenia The second example is a program in 6502 machine code residing at memory address 0x1000, which calculates the 13 first Fibonacci numbers and stores them at 0x1101-0x110d:online dating profile joke

<?xml version="1.0" encoding="UTF-8"?>
<dump name="6502 Fibonacci" blocks="02">
  <block name="Code" address="1000" word_size="01" length="2a"
    checksum="5cab5bf8ee299af1ad17e8093d941914eb5930c7">
      a9 01 85 20 85 21 20 1e 10 20 1e 10 18 a5 21 aa
      65 20 86 20 85 21 20 1e 10 c9 c8 90 ef 60 ae 00
      11 a5 21 9d 00 11 ee 00 11 60
  </block>
  <block name="Mem" address="1100" word_size="01" length="e"
    checksum="c8c2001c42b0226a5d9f7c2f24bd47393166487a">
      01 00 00 00 00 00 00 00 00 00 00 00 00 00
  </block>
</dump>

dating seiten schweiz kostenlos The final example contains a Block of 40-bit wide data:online dating profile jokes

<?xml version="1.0" encoding="UTF-8"?>
<dump name="Example of an SHF dump with wide data words" blocks="00001">
  <block name="SMIL memory dump" address="000" word_size="5"
        length="1A" checksum="ff2033489aff0e4e4f0cd7901afc985f7a213c97">
      00100 00200 00000 00090 00000 00036 00300 00400
      00852 00250 00230 00858 00500 00600 014DC 00058
      002A8 000B8 00700 00800 000B0 00192 00100 00000
      00900 00A00 00000 0000A 40000 00000 00B00 00C00
      00000 00000 00000 00001 00D00 00E00 00000 00100
      0CCCC CCCCD 00F00 01000 00000 00010 80000 00000
      00100 00790 00000 00234
  </block>
</dump>

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free dating chat london The SHF format is a format for representing hexadecimal data that one wants to transfer, manage, or transform. The format itself does not guarantee that the represented data is not falsely represented, malicious, or otherwise dangerous.alleinerziehende singles nürnberg

partnersuche ab 50 ohne registrierung fehlgeschlagen The data integrity of the SHF file as a whole is to be provided, if needed, by means external to the SHF file, such as the generic signing mechanism described by RFC 3275 [3].alleinerziehende singles nrw

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viva top 20 single charts dezember 2014 This section contains the registration information for the MIME type to SHF. The media type has been chosen to comply with the guidelines in [4].alleinerziehende singles magdeburg

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partnersuche alleinerziehende mutter forum This parameter must exist and must be set to "UTF-8". No other character sets are allowed for transporting SHF data. The character set designator MUST be uppercase.alleinerziehende single männer

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beste casual dating seite schweiz A hex Dump in itself has no other security considerations than what applies for any other XML file. However, the included binary data may in decoded form contain any executable code for a target platform. If additional security is desired, additional transport security solutions may be applied. For target code contained in a hex Dump, developers may want to include certificates, checksums, and the like in hexdump form for the target platform. Such uses are outside the scope of this document and a matter of implementation.online dating profil erstellen

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partnersuche ab 50 ohne registrierung umgehen This media type is a proper subset of the XML 1.0 specification [5]. One restriction is made: no entity references other than the five predefined general entities references ("&amp;", "&lt;", "&gt;", "&apos;", and "&quot;") and numeric entity references may be present. Neither the "XML" declaration (e.g., <?xml version="1.0" ?>) nor the "DOCTYPE" declaration (e.g., <!DOCTYPE ...>) need be present. (XML fragments are allowed.) All other XML 1.0 instructions (e.g., CDATA blocks, processing instructions, and so on) are allowed. Applications that use this media type: any program or individual wishing to make use of this XML 1.0 subset for hexdump exchange.alleinerziehende singles kiel

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partnersuche deutschland gratis online The attributes of elements in the SHF XML format may be extended when need arises. For example, certain applications will want to represent executable code as an SHF Dump, and may then need an execution start address to be associated with certain Dump Blocks, so that the address can be configured as a starting point for the CPU part of any processor code present in the Block, as opposed to the raw data, which is already given a start address by way of the "address" attribute. This can be done by extending the Block tag with a "start_address" attribute.online dating profile best examples

free chat room.com Another possible scenario is when a dump is applied to a computer system with several independent address spaces, such as a system with two CPUs, each with independent memories. In this case, a user may want to add an "address_space" attribute.online dating best profile names

die besten speed dating fragen As long as such new attributes are added, with no attributes being removed or redefined, the resulting Dump shall be considered a valid SHF Dump and transported using the application/xml+shf transport type. Parsers unaware of the modified namespace shall silently ignore any such extended attributes, or simply duplicate them from input to output when processing an SHF file as a filter. The management of such extended attributes is a matter of convention between different classes of users and not a matter of the IETF.online dating best profile ever

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partnersuche ch kostenlos chip Contact for further information: c.f., the "Authors' Addresses" section of this memo.alleinerziehende singles events

partnersuche deutschland gratis bestellen Acknowledgements: The SMIL memory Dump was kindly provided by Sten Henriksson at Lund University. Proofreading and good feedback on the SHF document was generously provided by Peter Lindgren, Tony Hansen, Larry Masinter, and Clive D.W. Feather. We also want to thank the Applications area workgroup for their help during development.partnersuche aus russland ukraine

berlin dating kostenlos vergleich Normative References

[1]
Bradner, S., “alleinerziehende singles hannover”, BCP 14, RFC 2119, March 1997.
[2]
Eastlake 3rd, D. and P. Jones, “alleinerziehende singles hessen”, RFC 3174, September 2001.
[3]
Eastlake 3rd, D., Reagle, J., and D. Solo, “partnersuche alleinerziehende mutter muster”, RFC 3275, March 2002.
[4]
Murata, M., St. Laurent, S., and D. Kohn, “alleinerziehende singles ohne anmeldung”, RFC 3023, January 2001.
[5]
Bray, T., Paoli, J., Sperberg-McQueen, C., Maler, E., and F. Yergeau, “alleinerziehende singles aachen”, <alleinerziehende singles augsburg>.

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online dating profile funny examples The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79.best online dating berlin

online dating profile funny Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at best dating sites berlin.free local singles chat phone

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