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	SHA hash functions - Wikipedia, the free encyclopedia
		The SHA (Secure Hash Algorithm) family is a set of related cryptographic hash functions.
		The SHA algorithms were designed by the National Security Agency (NSA) and published as a US government standard.
		The SHA hash functions have been used as the basis for the SHACAL block ciphers.
	en.wikipedia.org /wiki/SHA-512 (2219 words)

	SHA hash functions -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-07)
		The SHA (Secure Hash Algorithm) family is a set of related (additional info and facts about cryptographic hash function) cryptographic hash functions.
		The consequences of the Wang, Feng, et al paper in August of 2004 for these SHA variants is not entirely clear as of September 2004.
		The SHA hash functions have been used as the basis for the (additional info and facts about SHACAL) SHACAL (additional info and facts about block cipher) block ciphers.
	www.absoluteastronomy.com /encyclopedia/s/sh/sha_hash_functions2.htm (2331 words)

	SHA family - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-07)
		The SHA (Secure Hash Algorithm) family is a set of related cryptographic hash functions designed by the National Security Agency (NSA) and published by the National Institute of Standards and Technology (NIST).
		The first member of the family, published in 1993, is officially called SHA.
		These results suggest that plans for the use of SHA-1 in new cryptosystems should be reconsidered.
	www.encyclopedia-online.info /SHA (905 words)

	Digest::SHA2 - A variable-length one-way hash function
		SHA-256, SHA-384, and SHA-512 pertain to hashes whose outputs are 256 bits, 384 bits and 512 bits, respectively.
		This Perl implementation is meant to be a replacement for the older SHA256 by Rafael R. Sevilla.
		Returns the digest size (in bits) of the hash output used; valid sizes are 256, 384, and 512 only.
	kobesearch.cpan.org /htdocs/Digest-SHA2/Digest/SHA2.html (628 words)

	Digest::SHA::PurePerl - Perl implementation of SHA-1/224/256/384/512
		The values are 160, 224, 256, 384, and 512 for SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512, respectively.
		The values are 1, 224, 256, 384, and 512 for SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512, respectively.
		Provides persistent storage of intermediate SHA states by writing a portable, human-readable representation of the current state to $filename.
	cpan.uwinnipeg.ca /htdocs/Digest-SHA-PurePerl/Digest/SHA/PurePerl.html (1225 words)

	FreeS/WAN glossary (Site not responding. Last check: 2007-10-07)
		SHA produces a longer hash and is therefore more resistant to birthday attacks, but this is not a concern for IPsec.
		SHA is an improved variant of MD4 producing a 160-bit hash.
		SHA is one of two message digest algorithms available in IPsec.
	www.freeswan.org /freeswan_snaps/CURRENT-SNAP/doc/glossary.html (10741 words)

	RFC 3174 (rfc3174) - US Secure Hash Algorithm 1 (SHA1)
		If the number of bits in a message is a multiple of 8, for compactness we can represent the message in hex.
		The purpose of message padding is to make the total length of a padded message a multiple of 512.
		As a summary, a "1" followed by m "0"s followed by a 64- bit integer are appended to the end of the message to produce a padded message of length 512 * n.
	www.faqs.org /rfcs/rfc3174.html (2869 words)

	[No title]
		Notice that the algorithm compresses 160 bits + 512 bits to 160 bits where the 160 bits are the initial H values, and the 512 bits are a block of the message.
		Other SHA algorithms Understanding the SHA-1 algorithm makes understanding the family of SHA hashes easy.
		All of the SHA algorithms are this way, and that is why they are called secure hashes.
	www.rit.edu /~mja2449/SHAfamily.doc (632 words)

	search.cpan.org: Digest::SHA - Perl extension for SHA-1/224/256/384/512 (Site not responding. Last check: 2007-10-07)
		The values are 160, 224, 256, 384, and 512 for SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512, respectively.
		The values are 1, 224, 256, 384, and 512 for SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512, respectively.
		Provides persistent storage of intermediate SHA states by writing a portable, human-readable representation of the current state to $filename.
	search.cpan.org /~mshelor/Digest-SHA-5.03/SHA.pm (1191 words)

	Virus.Org (Site not responding. Last check: 2007-10-07)
		Although in last year some strides in to breaking SHA-1 where made, it is not fully broken just yet as with everything computing moves forward and what was once thought unbreakable becomes breakable.
		Moving to the new family of SHA is a prudent move to ensure the continued security of information secured using the SHA family of hash functions.
		Where as other one way hashes such as MD5 where given a beating in the last 12 months, SHA-1 still has some life but it is time to move on.
	www.virus.org /PrintArticle65.html (226 words)

	ipedia.com: SHA-1 Article (Site not responding. Last check: 2007-10-07)
		SHA-1 has been very closely examined by the public cryptographic community and no insecurities have yet been found; it is currently considered secure.
		In February 2004, a change notice was published for FIPS PUB 180-2, specifying an additional variant, SHA-224, defined to match the security level of Triple DES.
		SHA-1 has been used as the basis for the block cipher SHACAL.
	www.ipedia.com /sha_1.html (694 words)

	[No title]
		A SHA-512 digest is a 512 bit string except that, if the SHA512truncation parameter is present specifying truncation to n bits, it is the left most n bits of that string.
		In effect, the truncation parameter defaults to 512.
		A SHA-384 digest is the leftmost 384 bits of the 512 bit string that the algorithm calculates internally except that, if the SHAtruncation parameter is present specifying truncation to n bits, it is the left most n bits of that string.
	ietfreport.isoc.org /old-ids/draft-eastlake-xmldsig-uri-00.txt (1239 words)

	nuwen.net - Links
		In fact, the first C program I ever wrote was an implementation of SHA-1.
		The original SHA was published as FIPS 180.
		SHA was then changed to fix a weakness; the improved algorithm was called SHA-1 and was published as FIPS 180-1, superseding FIPS 180.
	nuwen.net /links.html (2488 words)

	FIPS 180-1 - Secure Hash Standard
		SHA-1 is a technical revision of SHA (FIPS 180).
		A circular left shift operation has been added to the specifications in section 7, line b, page 9 of FIPS 180 and its equivalent in section 8, line c, page 10 of FIPS 180.
		As a summary, a "1" followed by m "0"s followed by a 64-bit integer are appended to the end of the message to produce a padded message of length 512 * n.
	www.itl.nist.gov /fipspubs/fip180-1.htm (2844 words)

	Crc32 Software
		adler32, activex, sha 1, encoder, checkcum, development, rsp software, rsp checksum ocx 2 6 0, sha 256, visual basic, encoding, crc32
		Utility for protecting the integrity and verifying the accuracy of data files using checksum calculation algorithms, uses XML-based and Unicode-enabled checksum file format, and has the integrated checksum calculator.
		comparison, sha1, md5sum, checksum, sha 1, accuhash, integrity, irnis i haliullin, crc32
	www.soft911.com /find/crc32.html (427 words)

	SHA family (Site not responding. Last check: 2007-10-07)
		After the results were published, NIST announced that they planned to phase out the use of SHA-1 by 2010 in favour of the SHA-2 variants http://csrc.nist.gov/hash_standards_comments.pdf.
		The entire copy prevention system of Microsoft's Xbox game console relies on the security of SHA-1.
		append "1" bit to message append "0" bits until message length ≡ 448 (mod 512) append length of message as 64-bit big-endian integer to message
	www.worldhistory.com /wiki/S/SHA-family.htm (1342 words)

	Open Source (BSD Licensed) Secure Hash Algorithm (SHA) Implementations in C by Aaron Gifford, including SHA-1, SHA-224, ... (Site not responding. Last check: 2007-10-07)
		Open Source (BSD Licensed) Secure Hash Algorithm (SHA) Implementations in C by Aaron Gifford, including SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512
		HMAC-SHA1: Before writing my SHA implementations, I wrote an implementation of the HMAC-SHA1 algorithm (it includes Steve Reid's public domain SHA1 implementation since I wrote it before adding SHA-1 to my own library).
		I wrote it initially as part of a demonstration of Prof.
	www.adg.us /computers/sha.html (2300 words)

	[No title]
		Since SHA-1, SHA-256, and SHA-512 are unambiguously distinguishable by the length of the hash value, one could specify that "one of the three SHA standards" is the default, and which one is determined by the length.
		On Mon, 2003-09-01 at 08:19, Zooko wrote: > Since SHA-1, SHA-256, and SHA-512 are unambiguously distinguishable by the > length of the hash value, one could specify that "one of the three SHA > standards" is the default, and which one is determined by the length.
		change hash-scheme from "sha1" to "sha" and distinguish the variants by the length of the hash; 2.
	zgp.org /pipermail/p2p-hackers/2003-September.txt (17797 words)

	[No title]
		A SHA-512 digest is a 512 bit string.
		The content of the DigestValue element shall be the base64 [RFC2045] encoding of this string viewed as a 64-octet stream.
		The cryrptographic advances concerned do not effect the security of HMAC-MD5; however, there is little reason not to go for one of the SHA series of algorithms.
	www.ietf.org /proceedings/01aug/I-D/draft-eastlake-xmldsig-uri-01.txt (1707 words)

	Nullify - OpenPGP (Site not responding. Last check: 2007-10-07)
		RSA Security no longer recommends MD5 for new applications where collision-resistance is required.
		SHA (Secure Hash Algorithm) was designed by the National Security Agency (NSA) in 1993 as the algorithm of the Secure Hash Standard (SHS).
		Florent Chabaud and Antoine Joux later discovered a differential collision attack against SHA in 1998.
	www.nullify.org /openpgp.html (625 words)

	CPSC 467b Lecture Notes, Week 9
		For example, the openssl library includes implementations of MD2, MD4, MD5, MDC2, RIPEMD, SHA, SHA-1, SHA-256, SHA-384, and SHA-512.
		The SHA-xxx methods are recommended for new applications, but these other functions are also in widespread use.
		The MD5 hash function h is obtained as follows: First the original message is padded to length a multiple of 512.
	zoo.cs.yale.edu /classes/cs467/2005s/attach/ln_week09.html (4152 words)

	Md4 Software
		sha 512 512 bits, dpasha, sha1, ripemd 160, haval 256, ripemd 128, sha 384, paehl, sha 256, crc32
		The Hyper Hasher Suite allows you to calculate 26 different hash/checksum and HMAC values for any file on your system, while the HashFile utility adds support for MD5 & SFV file creation and verification.
		You should confirm all information before relying on it.
	www.soft911.com /find/md4.html (490 words)

	[No title]
		HMAC SHA Variations Identifiers: http://www.w3.org/2001/04/xmldsig-more#hmac-sha224 http://www.w3.org/2001/04/xmldsig-more#hmac-sha256 http://www.w3.org/2001/04/xmldsig-more#hmac-sha384 http://www.w3.org/2001/04/xmldsig-more#hmac-sha512 SHA-224, SHA-256, SHA-384, and SHA-512 [FIPS-180-2, FIPS-180-2change, RFC3874] can also be used in HMAC as described in section 2.2.1 for HMAC-MD5.
		Security Considerations Due to computer speed and cryptographic advances, the use of MD5 as a DigestMethod and the use of MD5 in the RSA-MD5 SignatureMethod is NOT RECOMMENDED.
		The concerned cryptographic advances do not effect the security of HMAC-MD5; however, there is little reason not to use one of the SHA series of algorithms.
	www.mit.edu /afs/athena/reference/rfc/authors/rfc4051.txt (2832 words)

	[saag] No need for SHA-2 Packet Authentication - Open Letter to the WG and Area Directors (Site not responding. Last check: 2007-10-07)
		> > First of all, the block size of SHA-256 (512 bits) is identical to that of > SHA-1, so the first assertion in the quote above is simply false, although > frankly it would have no relevance if true.
		Second, there is no known > reason why DRAFT-SHA-256 would in fact allow less frequent rekeying, using > either 32-bit or 64-bit sequence numbers.
		The SHA family of functions is a Hash family, not PRF.
	bs.mit.edu /pipermail/saag/2002q3/000655.html (288 words)

	Free Java-Software - Jacksum, a java checksum utility
		Exceptions are both algorithms bsd sum and UNIX system V sum.
		The filesize will be not written by any Hash- or MessageDigest-Algorithm (SHA* or MD*).
		The third column (it's the second one while you specifying a Hash- or MessageDigest-Algorithm) represents the filename.
	www.jonelo.de /java/jacksum (5814 words)

	Hash
		In version 7 you can specify which algorithm to use, and the new choices are:
		SHA - Generates a 28 character hash string using the Secure Hash Standard SHA-1 algorithm
		SHA-256 - Generates a 44 character hash string using the SHA-256 algorithm
	www.petefreitag.com /item/270.cfm (918 words)

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