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	Digital Signature Algorithm - Wikipedia, the free encyclopedia
		The Digital Signature Algorithm (DSA) is a United States Federal Government standard or FIPS for digital signatures.
		It was proposed by the National Institute of Standards and Technology (NIST) in August 1991 for use in their Digital Signature Standard (DSS), specified in FIPS 186 [1], adopted in 1993.
		A minor revision was issued in 1996 as FIPS 186-1 [2], and the standard was expanded further in 2000 as FIPS 186-2 [3].
	en.wikipedia.org /wiki/Digital_Signature_Algorithm (501 words)

	FIPS 186 - (DSS), Digital Signature Standard
		Digital signatures may also be generated for stored data and programs so that the integrity of the data and programs may be verified at any later time.
		The DSA is used by a signatory to generate a digital signature on data and by a verifier to verify the authenticity of the signature.
		Digital signatures are used to detect unauthorized modifications to data and to authenticate the identity of the signatory.
	www.itl.nist.gov /fipspubs/fip186.htm (3753 words)

	Approval of FIPS 186 (DSS)
		The digital signature is computed using a set of rules (i.e., the DSA) and a set of parameters such that the identity of the signatory and integrity of the data can be verified.
		Signature verification makes use of a public key which corresponds to, but is not the same as, the private key.
		While it is the intent of this standard to specify general security requirements for generating digital signatures, conformance to this standard does not assure that a particular implementation is secure.
	www.epic.org /crypto/dss/dss_approval_1994.html (1763 words)

	EFF: Privacy - Digital Signature, ID & Authentication
		The proposed DSS uses a public key to verify to a recipient the integrity of data and the identity of the sender of the data.
		Digital signatures are used to detect unauthorized modifications to data and to authenticate the identity of the user who generates the signature.
		In addition, the recipient of signed data can use a digital signature in proving to a third party that the signature was in fact generated by the signer of the data.
	www.eff.org /Privacy/Digital_signature (396 words)

	[No title]
		If the signature verifies correctly, the receiver (or any other party) has confidence that the message was signed by the owner of the public key and the message has not been altered after it was signed.
		Applications of Digital Signatures Because the DSA authenticates both the identity of the signer and the integrity of the signed information, it can be used in a variety of applications.
		A digitized signature is generated by converting a visual form of a handwritten signature to an electronic image.
	csrc.nist.gov /publications/nistbul/csl94-11.txt (2217 words)

	What is Digital Signature Standard? - a definition from Whatis.com - see also: DSS
		DSS was put forth by the National Institute of Standards and Technology (NIST) in 1994, and has become the United States government standard for authentication of electronic documents.
		DSA is a pair of large numbers that are computed according to the specified algorithm within parameters that enable the authentication of the signatory, and as a consequence, the integrity of the data attached.
		Signatures are generated in conjunction with the use of a private key; verification takes place in reference to a corresponding public key.
	searchsecurity.techtarget.com /sDefinition/0,,sid14_gci526300,00.html (419 words)

	CIS 798. Digital Signature Standard.
		A digital signature system has this property if a signer can prove that a message which was signed with his or her key, based on a fraudulent attack, is a fake.
		Digital signature verification: A verifier is well advised to obtain all the public information, the two primes p and q, the base g, and the prover's public signature key y, in an authenticated manner.
		DSS and elliptic curves: The digital signature in the DSS consists of the pair (r,s) which requires 320 bits for its representation.
	www.cis.ksu.edu /~huth/cry/dss.html (1326 words)

	DSA: Digital Signature Algorithm. DSS: Digital Signature Standard (Site not responding. Last check: 2007-10-30)
		DSA is a public key algorithm; the secret key operates on the message hash generated by SHA-1; to verify a signature, one recomputes the hash of the message, uses the public key to decrypt the signature and then compare the results.
		Signature creation is roughly the same speed as with RSA, but is 10 to 40 times (Schneier) as slow for verification.
		Schneier states that DSS is less susceptible to attacks than RSA; the difference is that RSA depends on a secret prime while DSA depends on a public prime -- the verifier can check that the prime number is not a fake chosen to allow forgery.
	home.pacbell.net /tpanero/crypto/dsa.html (292 words)

	[No title]
		I am pleased to tell you that we are working out the final arrangements on the planned standard, and hope to announce later this summer our selection of a digital signature standard based on a variant of the ElGamal signature technique.
		With respect to use characteristics, the digital signature technique is expected to be available on a royalty-free basis in the public interest world-wide.
		The Working Group also discussed issues involving the applicability of the digital signature algorithm to the classified community, cryptographic key management techniques, and the hashing function to be used in conjunction with the digital signature standard.
	www.phreak.org /archives/The_Hacker_Chronicles_II/cud3/cud325f.txt (610 words)

	digital signature - Ecommerce Guide - Terms You Need to Know to Do Business on the Internet (Site not responding. Last check: 2007-10-30)
		A digital code that can be attached to an electronically transmitted message that uniquely identifies the sender.
		Like a written signature, the purpose of a digital signature is to guarantee that the individual sending the message really is who he or she claims to be.
		Digital signatures are especially important for electronic commerce and are a key component of most authentication schemes.
	e-comm.webopedia.com /TERM/d/digital_signature.html (261 words)

	Digital Signature Standard to Safeguard Sensitive Government Information
		The National Institute of Standards and Technology (NIST) is soliciting comments from the public and private sectors on proposed changes to a standard used widely by federal agencies and private sector organizations to protect and verify the integrity of electronic data.
		Currently, FIPS 186-2 specifies the use of three algorithms to generate digital signatures: the Digital Signature Algorithm (DSA), the Elliptic Curve Digital Signature Algorithm, and the RSA Algorithm (named after its creators, Ron Rivest, Adi Shamir and Len Adleman).
		The digital signature standard has been updated twice since its original publication in 1994 to incorporate enhanced security measures.
	www.ansi.org /news_publications/print_article.aspx?articleid=1183 (385 words)

	DSS - Decision Support System, Digital Signature Standard, Direct Station Selector, Distributed Security Service
		A National Institute of Standards and Technology (NIST) standard for digital signatures, used to authenticate both a message and the signer.
		Recommended as a standard in 1994 by NIST and has become the United States government standard for authentication of electronic documents, specified in Federal Information Processing Standard (FIPS) 186.
		An example of a DSS is DirecTV, which broadcasts digital television signals.
	www.auditmypc.com /acronym/DSS.asp (512 words)

	What is digital signature? - a definition from Whatis.com - see also: e-signature
		- A digital signature (not to be confused with a digital certificate) is an electronic signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and possibly to ensure that the original content of the message or document that has been sent is unchanged.
		Digital signatures are easily transportable, cannot be imitated by someone else, and can be automatically time-stamped.
		A digital certificate contains the digital signature of the certificate-issuing authority so that anyone can verify that the certificate is real.
	searchsecurity.techtarget.com /sDefinition/0,,sid14_gci211953,00.html (489 words)

	A Federal Digital Signature Standard (Site not responding. Last check: 2007-10-30)
		Digital signatures are used to indicate that electronic messages and forms are authentic, much as handwritten signatures are used for this purpose on checks, contracts, and other paper documents.
		The Digital Signature Standard allows federal agencies to verify the authenticity of electronic data, such as files and electronic mail messages.
		The public key, used by the recipient of a signed message to verify the digital signature, must be certified by a reliable third party.
	museum.nist.gov /exhibits/timeline/printerFriendly.cfm?itemId=78 (358 words)

	DSS (Digital Signature Standard) (Linktionary term) (Site not responding. Last check: 2007-10-30)
		DSS is part of the U.S. government's Capstone program to develop cryptography and security standards that must be used by government agencies and private companies doing business with the government as specified in FIPS (Federal Information Processing Standard).
		DSS, which was made a standard in 1994, provides authentication but not encryption.
		Therefore, it can only be used for digital signatures-as compared to the RSA system, which can be used for encryption and digital signatures.
	www.linktionary.com /d/dss.html (214 words)

	Secure Sockets Layer, Digital Signature Algorithm, Digital Signature Standard (Site not responding. Last check: 2007-10-30)
		The public/private keys used to form the MAC (sign it with a digital signature) could be from RSA (used also for key exchange as described earlier).
		There is a new standard for signing which could be used instead of RSA.
		DSS uses Diffie-Hellman type algorithms and uses SHA-1 for the message digest.
	www.rhyshaden.com /ssl.htm (789 words)

	Review of the Digital Signature Standard
		Schorr's digital signature algorithm to have been inspired by El Gamal's work at Stanford in '89, and to have in turn inspired Brickell and McCurley.
		While there certainly are apps which require only digital signatures, in many if not most situations where a user needs a guarantee of authentication and integrity, he will want at least the option of confidentiality as well.
		The DSS was a key element in a coordinated US government strategy to block industry acceptance of any public key crypto in software in order to force upon the market the NSA's version of fully-GAKed PKC in silicon.
	cryptome.sabotage.org /dsa-vm.htm (1325 words)

	Enterprise - Web Consortium Finalizes Digital Signature Standard (Site not responding. Last check: 2007-10-30)
		The World Wide Web Consortium (W3C), one of the digital world's most influential standards bodies, Thursday announced that its members have agreed on a single language standard for digital signatures.
		This development comes at a time when many governments are pushing to make digital signatures subject to the same legal standards as physical signatures.
		"Open industry standards are a top priority for our customers as we advance the standardization program for Web services in 2002, [and] XML Digital Signature is a critical foundation technology for the security work yet to come," he noted.
	www.wirelessnewsfactor.com /perl/story/16376.html (728 words)

	NIST Proposes Updating Digital Signature Standard
		First issued in 1994 and updated in 1998 and 1999, DSS is used widely by federal agencies and numerous private-sector organizations to confirm the identity of a document signer and to verify the integrity of electronic data.
		Currently, the standard includes three algorithms for generating digital signatures: the Digital Signature Algorithm (DSA), RSA and the Elliptic Curve Digital Signature Algorithm (ECDSA).
		Digital signature algorithms require keys to generate secure signatures.
	itsecurity.com /security.htm?s=15002&sid=7cacde097055c1d7369171f78ec... (268 words)

	Can D.S.A. be Improved? - Complexity Trade-Offs with the Digital Signature Standard - Naccache, M'raihi, Raphaeli, ... (Site not responding. Last check: 2007-10-30)
		Abstract: The Digital Signature Algorithm (DSA) was proposed in 1991 by the US National Institute of Standards and Technology to provide an appropriate core for applications requiring digital signatures.
		Undoubtedly, many applications will include this standard in the future and thus, the foreseen domination of DSA as a legal certification tool is su#ciently important to focus research endeavours on the suitability of this scheme to various situations.
		-Complexity trade-offs with the digital signature standard', In Pre-proceedings of Eurocrypt'94 (1994).
	citeseer.ist.psu.edu /669743.html (526 words)

	Electronics & Telecommunications - NIST Proposes Digital Signature Standard Updates (Site not responding. Last check: 2007-10-30)
		First issued in 1994 and updated in 1998 and 1999, DSS is widely used by federal agencies and numerous private-sector organizations to confirm the identity of a document signer and to verify the integrity of electronic data, including email, electronic funds transfers, software distribution and other electronic applications.
		Previously, FIPS 186-2 specified the use of three algorithms to generate digital signatures: the Digital Signature Algorithm (DSA), RSA algorithm (from RSA Data Security) and the Elliptic Curve Digital Signature Algorithm (ECDSA).
		This document defines requirements for obtaining the assurances necessary for valid digital signatures and allows the use of 1024, 2048 and 3072-bit keys for DSA and RSA, and continues to recommend the ECDSA.
	electronics.ihs.com /news-06Q2/nist-digital-signature.jsp (675 words)

	SecureXMLTM Digital Signature
		When several certificates are available, the user is allowed to choose which digital identity to use for the signature.
		The Signature is built by first creating a hash / digest of the byte stream of the data to be signed, and then by encrypting the byte stream mathematically using the private key referred to by the PKI certificate to form the signature element.
		The final signature does not reveal the private key that was originally used to make the signature.
	www.infomosaic.net /SecureXMLDetailInfo.htm (395 words)

	Digital Signatures
		German Digital Signature Law (SigG), June 13, 1997.
		The Digital Signature Standard (DSS) is a cryptographic standard promulgated by the National Institute of Standards and Technology (NIST) in 1994.
		The DSS was the first cryptographic standard developed under the regime established by the Computer Security Act, which was intended to limit the role of the National Security Agency (NSA) in the development of civilian standards.
	www.epic.org /crypto/dss (451 words)

	NIST TO CONSIDER REVISED DIGITAL SIGNATURE STANDARD FOR FEDERAL AGENCIES
		In a notice in today's Federal Register, NIST seeks comments on the possibility of allowing government agencies to use additional public-key based digital signature algorithms, such as the RSA and elliptic curve techniques.
		Digital signatures are used to confirm the identity of the signer and to verify that electronic information has not been altered.
		Digital signatures, used increasingly in electronic business transactions and electronic commerce, also are expected to become an integral part of routine government business.
	www.nist.gov /public_affairs/releases/ta97-03.htm (574 words)

	Digital Signature FAQs
		The Digital Signature service is a service that we provide to all FlipAlbum® Professional 4, FlipAlbum® 5 Pro and FlipPublisher® customers to digitally sign their FlipBooks that are meant for online commercial distribution or FlipBooks that contain HTML pages for viewing on FlipViewer® 3.x.
		Please note the Digital Signature standard account must be activated by July 31st, 2005, after which it will no longer be valid.
		FlipPublisher® customers are provided with a 2-year free Digital Signature standard account that allows digital signing of up to 50 FlipBooks.
	support.ebooksys.com /faqds.php (982 words)

	FIPS PUB 180-1 - FEDERAL INFORMATION PROCESSING STANDARDS PUBLICATION
		The SHA-1 is required for use with the Digital Signature Algorithm (DSA) as specified in the Digital Signature Standard (DSS) and whenever a secure hash algorithm is required for Federal applications.
		The same hash algorithm must be used by the verifier of a digital signature as was used by the creator of the digital signature.
		This standard is required for use with the Digital Signature Algorithm (DSA) as specified in the Digital Signature Standard (DSS) and whenever a secure hash algorithm is required for Federal applica- tions.
	securityv.isu.edu /isl/fip180-1.html (5154 words)

	XML-Signature Syntax and Processing
		The XML Signature is a method of associating a key with referenced data (octets); it does not normatively specify how keys are associated with persons or institutions, nor the meaning of the data being referenced and signed.
		Detached signatures are over external network resources or local data objects that reside within the same XML document as sibling elements; in this case, the signature is neither enveloping (signature is parent) nor enveloped (signature is child).
		PKCS1, section 9.2.1], the value input to the signature function MUST contain a pre-pended algorithm object identifier for the hash function, but the availability of an ASN.1 parser and recognition of OIDs is not required of a signature verifier.
	www.w3.org /TR/xmldsig-core (9227 words)

	(FIPS) 186-2, Digital Signature Standard (DSS)
		This action will enable Federal agencies to use the Digital Signature Algorithm (DSA), which was originally the single approved technique for digital signatures, as well as two new ANSI standards that were developed for the financial community.
		In May 1994, the Secretary of Commerce approved FIPS 186, Digital Signature Standard (DSS), which specified the Digital Signature Algorithm (DSA) as the single technique for the generation and verification of digital signatures.
		The December 1998 Notice from NIST invited comments from public, academic and research communities, manufacturers, voluntary standards organizations, and Federal, state, and local government organizations concerning the specification of two techniques (DSA and ANSI X9.31- 1998) for the generation and verification of digital signatures.
	www.ogc.doc.gov /ogc/contracts/cld/ecomm/65fr7507.html (652 words)

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