JohnHancocksSignature.svg thumb 300px John Hancock s signature is the most prominent on the United States Declaration of Independence and the Articles of Confederation . A signature from lang la ... a simple X that a person writes on documents as a proof of identity and intent. The writer of a signature is a signatory . Similar to a handwritten signature, a signature work describes the work as readily identifying its creator. A signature may be confused with an autograph , which is chiefly an artistic signature. Function and types of signatures This section is linked from Literacy Image Autograph of Benjamin Franklin.svg thumb 220px Signature of Benjamin Franklin The traditional function of a signature is evidential it is to give evidence of The provenance of the document identity The intention will of an individual with regard to that document For example, the role of a signature ..., but rather to additionally provide evidence of deliberation and informed consent. This is why the signature ... place a thumbprint on legal documents in lieu of a written signature. There are many other terms which are synonymous with signature . In the United States, one is John Hancock , named after the first ... 2010 Image Gandhi signature.svg thumb 220px Signature of Mahatma Gandhi The signature of a famous person ... rule is that unless a statute specifically prescribes a particular method of making a signature it may be made in any number of ways. These include by a mechanical or rubber stamp facsimile. A signature ... in the signer s presence and at the signer s direction may make the signature. ref 80 Corpis Juris .... As an example, the final k in John Hancock s famous signature on the US Declaration of Independence ... paraph . ref Paraphe, also spelled parafe, is a term meaning flourish, initial or signature in French ... date April 2010 Special signature machines, called autopen s, are capable of automatically reproducing an individual s signature. These are typically used by people required to sign many documents, for example ... more details
selfref For the use of signatures in Wikipedia, see Wikipedia Signatures . A signature is a hand written .... wiktionary signatureSignature may also refer to In computing Signature block , text automatically appended at the bottom of an e mail message, Usenet article, or forum post Method signature , in computer ... signature , which defines the inputs and outputs for a function or method In cryptography Blind signature , digital signature in which the content of a message is disguised Digital signature or public key digital signature , a method for authenticating information Digital Signature Algorithm , a United States Federal Government standard Electronic signature , a signature imputed to a text via one ... features to a document ElGamal signature scheme , based on the difficulty of computing discrete logarithms Key signature cryptography , the result of applying a hash function on a key XML Signature , a W3C recommendation that defines an XML syntax In music Key signature , a series of sharp or flat ... Signature Moya Brennan album Signature Moya Brennan album , a 2006 album by Irish musician Moya Brennan Signature Joe album Signature Joe album Signature Patrice Rushen album Signature Patrice Rushen album Signature news music , a news music and station image package composed by Stephen Arnold Signature song , the one song that a popular and well established artist is identified with Time signature ... one beat In science Isotopic signature , a characteristic set of ratios of stable or unstable isotopes Signature mathematics another disambiguation page Metric signature , in physics, refers to the form of a metric tensor the sign of the diagonal components constitutes its signatureSignature change , in relativity Spectral signature , the specific combination of reflected and absorbed electromagnetic ... In other uses Signature , a brand of the clothing company Levi Strauss & Co. In bookbinding , a large ... leaves in the finished book Diabolical signature , in demonology, the signature of a devil, demon ... more details
unreferenced date December 2010 The genomic signature refers to the characteristic frequency of oligonucleotide s in a genome or sequence. It has been observed that the genomic signature of phylogenetically related genomes is similar. DEFAULTSORT Genomic Signature Category Nucleic acids ... more details
In mathematics , signature can refer to The signature permutation signature of a permutation is 1 according to whether it is an even permutation even odd permutation . The signature function defines a group homomorphism from the symmetric group to the group 1 . The signature of a real symmetric bilinear form or a real number real quadratic form is the number of positive minus the number of negative eigenvalue s of the corresponding matrix mathematics matrix which equals the surplus of positive coefficients over negative in any Diagonalizable matrix diagonalisation of the form . The signature is an invariant of the quadratic form by Sylvester s law of inertia i.e. independent of the choice of basis linear algebra basis . Related to this is the metric signature of the metric tensor on a pseudo Riemannian manifold . Also related is the signature topology topological signature of a 4 k dimensional compact space compact , oriented manifold . The cup product defines a symmetric form on the middle de Rham cohomology group H sup 2 k sup M . The topological signature of M is the signature of this form. See also signature complex . The signature of a flag linear algebra flag of subspaces is the sequence of the dimensions of the subspaces. In logic, the Signature logic signature of a structure contains information about the names and arities of its functions and relations. Signature of a knot mathdab es Signatura matem tica fr Signature math matiques ... more details
Signature Theatre may refer to Signature Theatre Arlington, Virginia , a stage theater in Virginia Signature Theatre Company New York City , a stage theater in New York Signature Theatres, a chain of movie theaters bought and rebranded by the Regal Entertainment Group in 2004 disambig ... more details
Undeniable signatures are a form of digital signature invented by David Chaum and Hans van Antwerpen in 1989. They have two distinctive features, The verification process is interactive, so that the signatory can limit who can verify the signature. A disavowal protocol, which is a cryptographic protocol that allows them to determine whether a given signature is a forgery . The first means that a signatory can allow only others who are authorized to access the document to verify their signature. If the document were to be leaked to a third party, the third party would be unable to verify that the signature is genuine. This is a designated verifier signature . However, because of this property it means that the signatory may deny a signature which was valid. To prevent this, there is the second property, a method to prove that a given signature is a forgery. See also Topics in cryptography References David Chaum, Hans van Antwerpen Undeniable Signatures Crypto 89, LNCS 435, Springer Verlag, Berlin 1990, 212 216. Category Cryptography ... more details
In cryptography , a ring signature is a type of digital signature that can be performed by any member of a group of users that each have key cryptography keys . Therefore, a message signed with a ring signature is endorsed by someone in a particular group of people. One of the security properties of a ring signature is that it should be difficult to determine which of the group members keys was used to produce the signature. Ring signatures are similar to group signature s but differ in two key ways first, there is no way to revoke the anonymity of an individual signature, and second, any group of users can be used as a group without additional setup. Ring signatures were invented by Ron Rivest , Adi Shamir , and Yael Tauman , and introduced at ASIACRYPT in 2001. ref http www.springerlink.com ... 2001. ref The name ring signature comes from the ring like structure of the signature algorithm ... signature on a message m , on input m , SK sub i sub , PK sub 1 sub , ... , PK sub n sub . Anyone can check the validity of a ring signature given , m , and the public keys involved, PK sub 1 sub , ... , PK sub n sub . If a ring signature is properly computed, it should pass the check. On the other hand, it should be hard for anyone to create a valid ring signature on any message for any ..., Shamir, and Tauman described ring signatures as a way to leak a secret. For instance, a ring signature could be used to provide an anonymous signature from a high ranking White House official , without ... the anonymity of a ring signature cannot be revoked, and because the group for a ring signature can be improvised. Another application, also described in the original paper, is for deniable signature s. A ring signature where the group is the sender and the recipient of a message will only seem to be a signature of the sender to the recipient anyone else will be unsure whether the recipient or the sender was the actual signer. Thus, such a signature is convincing, but cannot be transferred ... more details
Signature is a trading name of CACDP which is a Charitable organization charity registered in England and Wales, and Scotland. Signature promotes excellence in communication with deaf and deafblind people so their vision of a society in which deaf people have full access can become a reality. Signature encourages greater understanding of deaf and deafblind people and the languages and communication methods they use. Signature offers nationally recognised qualifications in subjects such as British Sign Language and speech to text reporting, which over 30,000 learners study at more than 700 locations across the UK and Ireland each year. Signature also administers the National Registers for Communication Professionals working with Deaf and Deafblind People NRCPD . Today more than 600 communication professionals working with deaf and deafblind people choose the NRCPD as their professional registration body. External links http www.signature.org.uk Signature Website http www.nrcpd.org.uk NRCPD Website Category Deafness organizations Category Deaf culture in the United Kingdom ... more details
Unreferenced date December 2009 Image SignatureRecord.jpg right thumb 200px Signature Record by Coleman Hawkins . Signature Records was a mid 20th century United States based record label . Noted Signature recording artists included Anita O Day , Coleman Hawkins , Eddie Lawrence , Ray Anthony , Barbara McNair , Monica Lewis , Dickie Thompson , Jane Harvey , Kay Thompson and Alan Dale singer . Bob Thiele produced records for Signature in the 1940s and 50s. He was married to three of Signature s vocalists Monica Lewis, Jane Harvey and Teresa Brewer . The label flourished in the 1940s and went out of business in 1972 Citation needed date April 2007 2007 revival Signature Records is also a record company set up in January 2007 by Max Martin to record Pop Music and create new artists. Artists include David Bisbal and Amanda singer See also List of record labels Category American record labels de Signature Records nl Signature Records ... more details
Mergeto Type signature discuss Talk Type signature Merge proposal date November 2008 In computer programming , especially object oriented programming , a Method computer science method is commonly identified by its unique method signature . This usually includes the method name, and the number, types and order of its parameter s. A method signature is the smallest datatype type of a method. In the Objective C programming language, method signatures for an object are declared in the interface header file. For example, id initWithInt int value defines a method tt initWithInt tt that returns a general object an tt id tt and takes one integer argument. Objective C only requires a type in a signature to be explicit when the type is not tt id tt this signature is equivalent initWithInt int value In the Java programming language Java programming language , a method signature for an object is the method name and the number and type of its parameter s. Return types are not considered to be a part of the method signature. method name parameters ... For example doSomething int y and doSomething String y Are distinct method signatures, but int doSomething int y and String doSomething int x are not distinct, and will be treated by a compiler as identical method declarations. In the above example the name of the parameter is not part of the method signature and is ignored by the compiler for checking method uniqueness. External links http java.sun.com docs books tutorial java javaOO methods.html Defining Methods in Sun s Java Tutorials DEFAULTSORT Method Signature Category Method computer science Compu lang stub de Signatur Programmierung it Firma programmazione ... more details
Orphan date February 2009 Context date April 2009 No footnotes date April 2009 Merge metric signature date July 2010 Signature change is concerned with when the spacetime signature of spacetime can change from positive definite to Lorentz metric Lorentzian . There are several reasons for interest in signature change including 1 In the early universe there might be a transition from spacetime which has three space dimensions and one time dimension to four space dimensions. This side steps the question of what happens at ever earlier times instead one now has an origin of time, when the fourth space dimension becomes time, and now the problem is to produce a theory to explain this. 2 In the path integral approach to quantum field theory many more systems are soluble when the signature is taken to be positive definite, essentially one has exponential functions rather than trigometrical functions in the integral which allows the integral to be solved. One then has to access the value of these solutions by applying some form of signature change to recover Lorentzian signature. Most practitioners change the signature by fiat whenever calculations seem to require it however there is a more systematic method using the line element field sometimes called the direction field . This expresses a Lorentzian metric as a kind of sum of a positive definite metric and the line element field, and this separation can be carried through to the Lagrangian . Then the line element field can be treated as just another field. The classical theory is well defined, the simplest way of treating the quantum theory gives a type of Klein Gordon equation governing signature change. References Reflist DEFAULTSORT Signature Change Category Relativity Relativity stub ... more details
Cleanup date June 2008 No footnotes date April 2009 Image Kvennafr arinn,p49.png thumb 150px right At the bottom of the page the signature mark represents the number of the leaf A signature mark is a letter, number or combination of either or both, which is printed at the bottom of the first page, or leaf, of a signature or section. This practise is to ensure that the bookbinder can order the pages and sections in the correct order. Contemporary use of signature marks A number of symbols used as binding signature marks were encoded in ISO 5426 2 ref 1996, Information and documentation Extension of the Latin alphabet coded character set for bibliographic information interchange Part 2 Latin characters used in minor European languages and obsolete typography ref and from there to enable migration of data from the old standard found their way into Unicode . 0x32 REFERENCE MARK, 0x34 MALTESE CROSS and 0x36 RIGHTWARDS LEAF ARROW were unified with U 203B , U 2720 and U 2767 ROTATED FLORAL HEART BULLET hedera, ivy leaf respectively, but 0x37 LATIN CAPITAL LETTER SIDEWAYS Q had to be added into Unicode as U 213A , ROTATED CAPITAL Q. U 2619 , REVERSED ROTATED FLORAL HEART BULLET, was added later these latter two are the only codepoints in Unicode 4.0 to bear the annotation binding signature mark . Although other symbols were used as binding signature marks, printers making something of a house style of the particular blocks of type they chose, it is unlikely that Unicode will encode any more marks, since they constitute metatextual and not textual information. References and external links Matt T. Roberts and Don Etherington, http palimpsest.stanford.edu don don.html Bookbinding and the Conservation of books A Dictionary of Descriptive Terminology http blogs.msdn.com michkap archive 2005 01 10 349769.aspx Every character has a story 1 U 213a ROTATED CAPITAL Q reflist DEFAULTSORT Signature Mark Category Page layout de Bogensignatur fr Signature Signature de la feuille is Ark ... more details
The prime signature of a number is the multiset of exponents of its prime factorisation . For example, all prime number s have a prime signature of 1 , the squares of primes have a prime signature of 2 , the products of 2 distinct primes have a prime signature of 1,1 and the products of a square of a prime and a different prime e.g. 12,18,20,... have a prime signature of 2,1 . The number of divisor s that a number has is determined by its prime signature as follows If you add one to each exponent and multiply them together you get the number of divisors including the number itself and 1. For example, 20 has prime signature 2,1 and so the number of divisors is 3x2 6. They are 1,2,4,5,10 and 20. The smallest number of each prime signature is a product of primorial s. The first few are 1, 2, 4, 6, 8, 12, 16, 24, 30, 32, 36, 48, 60, 64, 72, 96, 120, 128, 144, 180, 192, 210, 216, ... OEIS id A025487 . Numbers with same prime signature class wikitable Signature Numbers On Line Encyclopedia of Integer Sequences OEIS ID Description 1 2, 3, 5, 7, 11, ... OEIS2C id A000040 prime numbers 2 4, 9, 25, 49, 121, ... OEIS2C id A001248 Square number squares of prime numbers 1,1 6, 10, 14, 15, 21, ... OEIS2C id A006881 two distinct prime divisors Square free integer square free semiprime s 3 8, 27, 125, 343, ... OEIS2C id A030078 Cube algebra cubes of prime numbers 2,1 12, 18, 20, 28, ... OEIS2C id A054753 squares of primes times another prime 4 16, 81, 625, 2401, ... OEIS2C id A030514 fourth powers of prime numbers 3,1 24, 40, 54, 56, ... OEIS2C id A065036 cubes of primes times another prime 1,1,1 30, 42, 66, 70, ... OEIS2C id A007304 three distinct prime divisors sphenic number s 5 32, 243 ... of square free semiprimes Sequences defined by their prime signature Given a number with prime signature S , it is A prime number if S 1 A square algebra square if gcd S is even A square free integer ... if sum S k . References mathworld urlname PrimeSignature title Prime Signature External links http ... more details
Confusing date December 2006 The signature of a metric tensor or more generally a nondegenerate symmetric ... take a pair of values from 0 to n . The signature may be denoted either by a pair of integers such as p ... or &minus , , , , in this case 1,3 resp. 3,1 . ref Rowland, Todd. Matrix Signature. From ... ref The signature is said to be indefinite or mixed if both p and q are non zero. A Riemannian metric is a metric with a positive definite positive definite signature. A Lorentz metric Lorentzian metric is one with signature p , &minus 1 or sometimes 1, &minus q . There is also another definition of signature which uses a single number math s math defined as the number p ... . Using the nondegenerate metric tensor from above, the signature is simply the sum of p and q . For example ... signature i sub sub , i sub &minus sub , i sub 0 sub of A is a group of three natural numbers ... finite dimensional vector space V , the signature of V is the signature of the matrix which represents ... of inertia , the signature does not depend on the basis. Properties Spectral theorem Due to the spectral ... if they have the same signature. This means that the signature is a complete invariant for scalar ... relation congruent if and only if they have the same signature. Geometrical interpretation of the indices ... a non degenerate scalar product has signature math i , i , 0 math , with math i n i math . So the values ... transform each other by multiplying 1 to their scalar product. Examples Matrices The signature of the identity matrix math n times n math is math n, 0, 0 math . More generally, the signature of a diagonal ... matrices have both the same signature math 1, 1, 0 math , therefore they are congruent because ... has math n, 0, 0 math signature. A scalar product has this signature if and only if it is a positive definite scalar product. A negative definite scalar product has math 0, n, 0 math signature. A semi definite positive scalar product has math n, 0, m math signature. The Minkowski space is math R ... more details
Signature files is a technique applied for document retrieval . The idea behind Signature files is to create a quick and dirty filter that will keep all the documents that match to the query and hopefully a few ones that do not. The way this is done is by creating for each file a signature, typically a hash coded version. One method is superimposed coding. A post processing step is done to discard the false alarms. Since in most cases this structure is inferior to inverted file s in terms of speed, size and functionality, it is not used widely. However, with proper parameters it can beat the inverted files in certain environments. References Christos Faloutsos and Stavros Christodoulakis, Signature files An access method for documents and its analytical performance evaluation. ACM Transactions on Information Systems TOIS , Vol. 2, No. 4 1984 , pp. 267 288. Justin Zobel, Alistair Moffat and Kotagiri Ramamohanarao, Inverted files versus signature files for text indexing . ACM Transactions on Database Systems TODS , Vol. 23, Issue 4 1998 , pp. 453 490. Ben Carterette and Fazli Can, Comparing inverted files and signature files for searching a large lexicon. Information Processing and Management, Vol. 41, No. 3 2005 , pp. 613 633. Category Algorithms on strings compu stub ja ... more details
Unreferenced date November 2006 In mathematics , a signature matrix is a diagonal matrix whose diagonal elements are plus or minus 1, that is, any matrix of the form math A begin pmatrix pm 1 & 0 & cdots & 0 & 0 0 & pm 1 & cdots & 0 & 0 vdots & vdots & ddots & vdots & vdots 0 & 0 & cdots & pm 1 & 0 0 & 0 & cdots & 0 & pm 1 end pmatrix math Any such matrix is its own inverse matrix inverse , hence is an involutary matrix . It is consequently a square root of a matrix square root of the identity matrix . Note however that not all square roots of the identity are signature matrices. Noting that signature matrices are both symmetric matrix symmetric and involutary, they are thus orthogonal matrix orthogonal . Consequently, any linear transformation corresponding to a signature matrix constitutes an isometry . Geometrically, signature matrices represent a reflection mathematics reflection in each of the axes corresponding to the negated rows or columns. See also Involution mathematics DEFAULTSORT Signature Matrix Category Matrices Maths stub sl Matrika oznak th ... more details
Unreferenced date January 2008 Original research date January 2008 A signature event is an event whose brand recognition in the market is equal to or greater than the brand recognition of its sponsoring organization. Also, an event whose production values carry the genetics of the sponsoring organization s mission. Signature event is a term encountered, most frequently, in the nonprofit sector to describe an organization s major fundraising event s . The term signature event was coined in 1984 by Biondolillo Associates, a Wellesley, MA based marketing and development consulting firm. Some examples include The Big Cheese Reads, The Pan Mass Challenge, Girl Scout Cookies Campaign. ad stub Category Advertising ... more details
A detached signature is a type of digital signature that is kept separate from its signed data, as opposed to bundled together into a single file. See also XML Signature References cite web url http www.gnupg.org gph en manual x135.html AEN160 title Making and verifying signatures Detached signatures author Free Software Foundation work The GNU Privacy Handbook year 1999 accessdate 2010 01 25 cite web url http msdn.microsoft.com en us library ms759193 VS.85 .aspx title Detached Signatures author Microsoft Corporation work MSDN Library accessdate 2010 01 25 crypto stub Category Public key cryptography ... more details
for the founder of L.L.Bean Leon Leonwood Bean Infobox Company company name L.L.Bean Brand name L.L.Bean Signature company logo company type Private foundation 1912 location Freeport, Maine , br United States industry Retail products Clothing homepage http www.llbeansignature.com www.llbeansignature.com L.L.Bean SIGNATURE is a sub brand of L.L.Bean , launched on 15 March, 2010. The Signature L.L.Bean Signture brand offers classy, young and fresh line of clothing. L.L.Bean is a privately held mail order , online and retail company based in Freeport, Maine Freeport , Maine , United States , specializing in clothing and outdoor recreation equipment. Category Clothing brands of the United States ... more details
dablink For the publishing company, see Harlequin Enterprises , of which Signature Select is an imprint. orphan date March 2010 Signature Select is a brand of hand made premium cigar owned by http www.topshelfcigar.com Top Shelf Cigar Co. of Skippack, Pennsylvania Skippack , Pennsylvania . History and Background Pepin Garcia Jos Don Pepin Garcia created the Signature Select Green Label at the company s request and the brand made its debut in late 2004. ref name Cronin James Cronin, in litt. , 2006. ref The cigars are manufactured at the Pepin Garcia The El Rey de los Habanos factory El Rey de los Habanos factory in the Little Havana section of Miami, Florida Miami , Florida . Image Signature Select opt.jpg thumb 300 px Signature Select band Description The brand bears the company owner s signature on the cigar band and cigar box box . Nicaragua n grown, the filler cigar filler is a Cuba n seed Corojo 99 blend, the wrapper cigar wrapper is a Colorado leaf. The cigars are celloed and packed in boxes of 25. Each box is dated. ref name Cronin Models Vitolas Image Top Shelf Signature Select.jpg thumb 300px right Signature Select photo by Rufus Shaw class wikitable Frontmark Vitola Length, in. Ring Gauge Churchill Churchill align center 7 align center 49 Toro toro align center 6 align center 50 Torpedo figurado align center 6.125 align center 52 Cuban Corona corona align center 5.5 align center 44 Robusto robusto align center 5 align center 50 Footnotes reflist DEFAULTSORT Signature Select Category Cigar brands Category Cigars ... more details
Orphan date October 2008 In computer computing , a file signature is data used for identify or verify the content of a file. In particular, it may refer to File format Magic number File magic number bytes within a file used to identify the format of the file generally a short sequence of bytes most are 2 4 bytes long placed at the beginning of the file Checksum File checksum or more generally the result of an hash function over the file content data used to verify that the file content integrity, generally against transmission errors or malicious attacks. The signature can be included at the end of the file or in a separate file. See also Signature file Virus signature External links http www.garykessler.net library file sigs.html List of file signatures Category Files ... more details
A Group signature scheme is a method for allowing a member of a group to anonymously digital signature sign a message on behalf of the group. The concept was first introduced by David Chaum and Eugene van Heyst in 1991. For example, a group signature scheme could be used by an employee of a large company ... employees in the group. Essential to a group signature scheme is a group manager , who is in charge .... In some systems the responsibilities of adding members and revoking signature anonymity are separated ... signature, the identity of the individual signer cannot be determined without the group manager s secret key . Traceability Given any valid signature, the group manager should be able to trace which user issued the signature. This and the previous requirement imply that only the group manager can break ... Collusion collude , they cannot forge a signature for a non participating group member. Unforgeable tracing verification The revocation manager cannot falsely accuse a signer of creating a signature he did not create. The ACJT 2000, BBS04 in Crypto , BS04 in CCS group signature schemes are the state ... Crypto04 a novel group signature scheme based on bilinear maps. Signatures in this scheme are approximately the size of a standard RSA signature around 200 bytes . The security of the scheme is proven ... towards provable security was given by Bellare, Micciancio and Warinschi. See also Ring signature ... for signers. Threshold signature A threshold signature involves a fixed size quorum threshold of signers ... threshold signature scheme supports n potential signers, any t of which can on behalf of the group ... are evident from a given multi signature. A multisignature is much shorter sometimes constant than the simple collection of individual signatures. Proxy signature A proxy signature allows a delegator ... generation, a signature is directly generated by a signer based on a challenge provided by the verifier ... 265 J. Camenisch, M. Michels. A Group Signature Scheme Based on an RSA Variant . 1998 http www.brics.dk ... more details
Infobox school name Evansville Signature School native name Signature School image colors color box black color box white color box silver established 2002 type charter school charter high school , International Baccalaureate Programme , Advanced Placement district Evansville Vanderburgh School Corporation ... Signature School Signature School is a charter school charter high school located in downtown ... public charter high school. The very first graduation ceremony for Signature School students was held ... 1992 to 2002, before Signature School became a full time high school, it operated as a half day satellite ... 12532678 site newsweek accessdate 2006 11 03 Dead link date November 2010 bot H3llBot ref In 2007, Signature ... and was the only school in Indiana to receive this award. Within this same article, Signature School ... again made Newsweek s Top 100 Best High Schools list by placing 99th. In December 2008, Signature ... High Schools list. Also, in the 2008 school year, Signature was declared a blue ribbon school. In 2009, Signature School was named the 27th best high school in the country by Newsweek. In 2010, Signature ... school, Signature School is free and open to the public. The EVSC does not associate with Signature ... paths math and science , fine arts fine and performing arts , or liberal arts humanities . Signature School has been accepted into the International Baccalaureate Programme . ref cite web title Signature ... an important role in the school. Signature School prides itself on offering challenging courses for the self ... Powerschool , which is updated regularly. Unlike other high schools, Signature students do not eat in a school ... the Commons in the 2 sup nd sup floor of the Signature School Science Center. Students sign up each morning for a restaurant and sign in with a teacher assigned to that restaurant. Signature School has a focus on academics and the arts. Within its first five years of existence, Signature School has ..., performed by the Signature Singers , which is led by teacher Terry Becker. On a side note, in addition ... more details
In cryptography , a blind signature , as introduced by David Chaum , ref David Chaum, Blind signatures ... research crypto HTML PDF C82 199.PDF ref is a form of digital signature in which ... blind signature can be publicly verified against the original, unblinded message in the manner of a regular digital signature. Blind signatures are typically employed in privacy related protocols ... systems and digital cash schemes. An often used analogy to the cryptographic blind signature is the physical ... can later verify the signature and know that the signature is valid within the limitations of the underlying signature scheme. Blind signatures can also be used to provide unlinkability , which prevents ... in such a way that the signature remains valid for the un blinded message. This can be useful in schemes where anonymity is required. Blind signature schemes can be implemented using a number of common public key cryptography public key signing schemes, for instance RSA and Digital Signature Algorithm DSA . To perform such a signature, the message is first blinded , typically by combining it in some ... be later verified against the signer s public key. In some blind signature schemes, such as RSA, it is even possible to remove the blinding factor from the signature before it is verified. In these schemes, the final output message signature of the blind signature scheme is identical to that of the normal signing protocol. Uses Blind signature schemes see a great deal of use in applications where ... not learn the voter s selections. An unlinkable blind signature provides this guarantee ... ballots it signs back to the un blinded ballots it receives for count Blind signature schemes Blind signature schemes exist for many public key signing protocols. Some examples are provided ... legitimate input to the signature function. As an analogy, consider that Alice has a letter which ... formally a blind signature scheme is a cryptographic protocol that involves two parties, a user Alice ... more details
Unreferenced stub auto yes date December 2009 Mergefrom Method signatureSignature computer science discuss Talk Type signature Merge proposal date May 2009 About type signatures of functions in general types of functions as first class objects First class function In computer science , a type signature defines the inputs and outputs for a function computer science function , subroutine or method computer science method . A type signature includes at least the function name and the number of its arguments. In some programming languages, it may also specify the function s return type, the types of its arguments, or errors it may pass back. Haskell A type signature in the Haskell programming language Haskell programming language is written, generally, in the following format functionName arg1Type arg2Type ... argNType Notice that the type of the result can be regarded as everything past the first supplied argument. This is a consequence of currying , which is made possible by Haskell s support for first class function s. That is, given a function that takes in two inputs, but had one argument supplied, the function is curried to produce a function of one argument the one that is not supplied. Thus calling f x , where f a b c, yields a new function f b c which can be called f b to produce c. The actual type specifications can consist of an actual type, such as Integer, or a general type variable that is used in type polymorphism parametric polymorphic function programming functions ... a a a This function takes in a function with type signature a a, and returns data of type a out ... language C and C the type signature is declared by the most commonly known function prototype . In C ... that would be invoked as source lang c char c double d int retVal fPtr c, d source has the signature source lang c int fPtr char c, double d source DEFAULTSORT Type Signature Category Type theory Category Subroutines Prog lang stub fr Signature de type ... more details
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