
	Where results make sense

Topic: RIPEMD 160

	RIPEMD - Wikipedia, the free encyclopedia
		It is an improved version of RIPEMD, which in turn was based upon the design principles used in MD4, and is similar in performance to the more popular SHA-1.
		The 128-bit version was intended only as a drop-in replacement for the original RIPEMD, which was also 128-bit, and which had been found to have questionable security.
		In August 2004, a collision was reported for the original RIPEMD [1].
	en.wikipedia.org /wiki/RIPEMD-160 (283 words)

	RIPEMD -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		It is an improved version of RIPEMD, which in turn was based upon the design principles used in (Click link for more info and facts about MD4) MD4, and is similar in performance to the more popular (Click link for more info and facts about SHA-1) SHA-1.
		In August 2004, a collision was reported for the original RIPEMD.
		The 160-bit RIPEMD hashes (also termed RIPE message digests) are typically represented as 40-digit (Click link for more info and facts about hexadecimal) hexadecimal numbers.
	www.absoluteastronomy.com /encyclopedia/r/ri/ripemd5.htm (326 words)

	The RIPEMD-160 page
		In the first half of 1995 Hans Dobbertin found collisions for a version of RIPEMD restricted to two rounds out of three.
		RIPEMD-160 is a strengthened version of RIPEMD with a 160-bit hash result, and is expected to be secure for the next ten years or more.
		RIPEMD-128 is a plug-in substitute for RIPEMD (or MD4 and MD5, for that matter) with a 128-bit result.
	www.esat.kuleuven.ac.be /~bosselae/ripemd160.html (1704 words)

	RIPEMD 160 (Site not responding. Last check: 2007-11-07)
		It is an improved version of RIPEMD, which in turn was based uponthe design principles used in MD4, and is similar in both strength and performance to themore popular SHA-1.
		The 128-bit version was intended only as a drop-inreplacement for the original RIPEMD, which was also 128-bit, and which had been found to have questionable security.
		The 256 and320-bit versions diminish only the chance of accidental collision, anddon't have higher levels of security as compared to, respectively, RIPEMD-128 and RIPEMD-160.
	www.therfcc.org /ripemd-160-137837.html (174 words)

	Re: DSA hash algorithms (Site not responding. Last check: 2007-11-07)
		Or we could change the spec to allow > any hash >= 160 bits to be used with DSA keys.
		We could follow the NIST > recommendation in http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf > and use just the left 160 bits of the larger hash.
		Because every hash of 160bit will do, I'd propose to be as flexible as possible.
	www.imc.org /ietf-openpgp/mail-archive/msg09342.html (196 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		The results demonstrate that in order to prevent the initial state reconstruction of each of the clock-controlled LFSRs individually, the length of each of them should be sufficiently long.
		It is in comparison with the MDx-MAC based on RIPEMD, much more efficient on short messages (that is on messages of 512 or 1024 bits) and percentage-wise a little more efficient on long messages.
		The MAC uses the basic transformation RIPEMD as often as it would use the basic transformation to produce the unkeyed hashvalue of a message.
	www.tml.hut.fi /Opinnot/Muut/1998/Eurocrypt98/poster-papers.txt (795 words)

	Citations: RIPEMD-160: A Strengthened Version of RIPEMD - Dobbertin, Bosselaers, Preneel (ResearchIndex) (Site not responding. Last check: 2007-11-07)
		....resulting Verification field is a 160 bit Variable Precision Integer (22 bytes including Size) When used in calculations, the Verification data includes both the Size and Value fields.
		RIPEMD outputs 160 bit strings which were directly interpreted as integers (where the leftmost bit is interpreted as the most significant bit) The attack was implemented in C using the LIP long integer package [15] and executed on a SUN Enterprise Server.
		It are all iterative hash functions using a compression function as their basic building block, the input to which consists of a 128 or 160 bit chaining variable and a 512 bit message block.
	citeseer.ist.psu.edu /context/232201/0 (3048 words)

	160 a: Air Force Technology - Tu-160 Blackjack - Strategic Bomber (Site not responding. Last check: 2007-11-07)
		A coalition of more than 160 humanitarian organizations working on disaster relief, refugee-assistance, and sustainable development programs.
		Merchandise as well as practical and historical information from Tiffany and Co.'s 160 years.
		Map of the state of Washington with counties linking to over 160 SDA churches, many of which feature websites.
	www.matrilogic.com /160-a.html (309 words)

	Windows MD5 Signature Generator: RIPEMD Cryptographic Hash Function (Site not responding. Last check: 2007-11-07)
		RIPEMD-160 is a cryptographic hash function designed by Hans Dobbertin, Antoon Bosselaers, and Bart Preneel in the framework of the European Union's RACE Integrity Primitives Evaluation (RIPE) project.
		RIPEMD-160 is a 160 bit replacement for earlier 128 bit message digests such as MD5.
		While MD5 is still widely used to verify the authenticity of files and data, successful attacks on the integrity of the MD5 message digests have been demonstrated.
	www.bytefusion.com /products/ens/secexmd5+/ripemdcryptographichashfunc.htm (210 words)

	Manpage of RIPEMD (Site not responding. Last check: 2007-11-07)
		ripemd - calculates or verifies the cryptographic hash of a file
		SHA-1, specified by NSA (National Security Agency) and NIST (National Institute of Standards and Technology), might have more security breaches than RIPEMD-160, but is currently more popular.
		RIPEMD has been designed by Hans Dobbertin, Antoon Bosselaers, and Bart Preneel (see http://www.esat.kuleuven.ac.be/~cosicart/ps/AB-9601/)
	www-user.tu-chemnitz.de /~chsi/ANSI-tools/ripemd.htm (151 words)

	Re: re-consideration of TIGER
		> and sha-1 is actively being looked at for a possible extension of the > attack, > > and MD5, HAVAL, and RIPEMD are also being attacked > http://eprint.iacr.org/2004/199.pdf) Actually, all three are broken.
		But MD5 was (theoretically) broken in 1996, and RIPEMD has been considered weak for years.
		It is not the same as RIPEMD-160 (based on RIPEMD, but with considerable input from Dobbertin, who broke MD4 and MD5, or RIPEMD-128 (based on RIPEMD-160, intended as a "drop in" replacement for RIPEMD or MD4/5.) > would it be reasonable to re-accept the non-sha based hashes, (e.g.
	www.imc.org /ietf-openpgp/mail-archive/msg07009.html (325 words)

	broadband » Forums » Security » I like Truecrypt - but...
		If you concatenate 160 1-bit output values of this function you get a 160-bit string whose entropy is equal to a 160-bit string generated by a 160-bit pseudorandom fucntion (seeded with your password).
		If that is true, then, again, it only gives marginal security, since all what has to be done is to "break" (brute force, birtday paradox, whatever) the one hash with difficulty of X. Breaking the rest, lets say, two other, hashes only increases the difficulty to 3X.
		So, in terms of bits, the difficulty raises from 80 or 160 to 83 or 163 bits.
	www.dslreports.com /forum/remark,11200006~start=8~mode=flat (2481 words)

	ripemd160 (Site not responding. Last check: 2007-11-07)
		The result is a binary string of 16 bytes representing the 160 bit RIPEMD-160 digest value.
		H. Dobbertin, A. Bosselaers, B. Preneel, "RIPEMD-160, a strengthened version of RIPEMD" http://www.esat.kuleuven.ac.be/~cosicart/pdf/AB-9601/AB-9601.pdf
		RIPEMD, md4, hashing, message-digest, security, rfc 1320, rfc 1321, rfc 2104
	tcllib.sourceforge.net /doc/ripemd160.html (538 words)

	Windows MD5 Signature Generator: US Secure Hash Algorithm 1 (SHA1) (Site not responding. Last check: 2007-11-07)
		The Secure Hash Algorithm 1 (SHA1) has been officially adopted by the United States government as the Secure Hash Standard of the Federal Information Processing Standard (FIPS) and is specified in RFC 3174.
		SHA1 uses a 160 bit digest which is designed to replace earlier 128 bit message digests such as MD5.
		Successful attacks on the latter have been demonstrated in cryptographic literature.
	www.bytefusion.com /products/ens/secexmd5+/ussecurehashalgorithm1(sh.htm (136 words)

	PGP DH vs. RSA FAQ
		Compare this with SHA-1 & RIPEMD with which no such forethought is necessary (because no B can be found that hashes to the same M with these two alternative algorithms).
		The original RIPEMD was released in 1992 but was subsequently found to have some significant weaknesses [Dob95], [MOV96].
		The new version of RIPEMD is approximately half as fast as the previous version - which gives some idea of the significant security improvements made between versions.
	www.scramdisk.clara.net /pgpfaq.html (15220 words)

	! Aware to man pages: rmd160(3)
		The RMD160End() function is a front end for RMD160Final() which converts the digest into an ASCII representation of the 160 bit digest in hexadec- imal.
		The RMD160File() function calculates the digest for a file and returns the result via RMD160End().
		SEE ALSO rmd160(1), md4(3), md5(3), sha1(3) H. Dobbertin, A. Bosselaers, B. Preneel, RIPEMD-160, a strengthened version of RIPEMD.
	www.rocketaware.com /man/man3/rmd160.3.htm (501 words)

	[No title]
		Efficient, especially on short messages and for frequent key-changes." Bert den Boer debis Information Security Services GmbH, Rabistrasse 8, D-53111 Bonn, Germany Email: b-denboer@itsec-debis.de We will present a message authentication code.
		This positive fact remains if we compare our TWO-TRACK-MAC with HMAC based on RIPEMD.
		The output is 160 bits long, so there will always be 160 bits of secret information in the internal variable.
	www.iacr.org /conferences/ec98/poster-papers.txt (795 words)

	SHA-1 Broken (Site not responding. Last check: 2007-11-07)
		The last time that SHA-1 attacks showed up, similar attacks were possible against MD5 and possibly also the newer SHA family members; I’m not really sure if there are cryptographic hashes in common use that aren’t at least slightly tainted right now.
		From what I’ve heard, SHA-2 (SHA-384/512) is not more secure than SHA-1 except for the greater length, but RIPEMD-160 (in contrast to RIPEMD) still looks great.
		MD4, MD5, HAVAL-128 and RIPEMD already found broken in CRYPTO’04.
	scottstuff.net /blog/articles/2005/02/16/sha-1-broken (256 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		Technical Summary This document describes an HMAC mode for the RIPEMD secure hash algorithm for use within ESP and AH in IPSEC.
		The European community prefers RIPEMD over both SHA-1 and MD5, so an HMAC mode is necessary that describes the use of RIPEMD.
		Working Group Summary There was working group concensus on this document, although not a lot of commentary.
	www.ietf.org /IESG/Announcements/draft-ietf-ipsec-auth-hmac-ripemd-160-96.ann (247 words)

	Citations: A Strengthened Version of RIPEMD - Dobbertin, Bosselaers, Preneel (ResearchIndex)
		This attack does not find collisions in MD5, but may be an important first step.
		SHA 1 [38] is another commonly used dedicated hash function, as well as HAVAL [115] and RIPEMD
		Generally, these algorithms have been optimized for speed and easy software implementation.
	citeseer.ist.psu.edu /context/2207359/0 (205 words)

	RIPEMD-160: A Strengthened Version of RIPEMD - Dobbertin, Bosselaers, Preneel (ResearchIndex)
		During the last five years, several fast software hash functions have been proposed; most of them are based on the design principles of Ron Rivest's MD4.
		One such proposal was RIPEMD, which was developed in the framework of the EU project RIPE (Race Integrity Primitives Evaluation).
		10 RIPEMD with two-round compress function is not collisionfree (context) - Dobbertin
	citeseer.ist.psu.edu /dobbertin96ripemd.html (578 words)

	Fast Hashing on the Pentium - Bosselaers, Govaerts, Vandewalle (ResearchIndex) (Site not responding. Last check: 2007-11-07)
		In 1996, assembly code versions of SHA 1, MD5 and RIPEMD on a Pentium ran at rates of 48.7, 113 and 82 Mbps, respectively
		Anecdotally, in 2003 a 1.6 Ghz Pentium can perform about 460,000 SHA 1 hash operations per second.
		25 RIPEMD-160: A Strengthened Version of RIPEMD (context) - Dobbertin, Bosselaers et al.
	citeseer.ist.psu.edu /bosselaers96fast.html (556 words)

	RIPEMD-160 (Site not responding. Last check: 2007-11-07)
		) der Europäischen Union wurde RIPEMD, ebenfalls eine Variante von MD4, entwickelt.
		Beide Ergebnisse werden zu den vier Verkettungsvariablen addiert.
		Dadurch scheint RIPEMD resistent gegen differentielle und lineare Kryptanalyse zu werden.
	www.larsnoebel.de /diplom/node40.html (122 words)

	Free ripemd downloads (Site not responding. Last check: 2007-11-07)
		Free ripemd downloads, showing 1 - 9 of about 9
		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.
		hash, hmac, md5, crc, whirlpool, md2, sha, RIPEMD, crc32, crc16, ccitt, emule, fcs, ghash, gost, edonkey, ed2k, sfv, hashfile, hyper, hasher, md4
	www.handyarchive.com /free/ripemd (435 words)

	sci.crypt: Re: RIPEMD broken, NOT RIPEMD-128 and RIPEMD-160
		sci.crypt: Re: RIPEMD broken, NOT RIPEMD-128 and RIPEMD-160
		In reply to: Francois Grieu: "RIPEMD broken, NOT RIPEMD-128 and RIPEMD-160"
		> Should be: RIPEMD, a 128 bit hash.
	www.derkeiler.com /Newsgroups/sci.crypt/2004-08/1653.html (214 words)

	RFC 2286 (rfc2286) - Test Cases for HMAC-RIPEMD160 and HMAC-RIPEMD128
		[RIPE] Dobbertin, H., Bosselaers A., and Preneel, B. "RIPEMD-160: A Strengthened Version of RIPEMD" April 1996 Author's Address Justin S. Kapp Reaper Technologies The Post Office, Dunsop Bridge Clitheroe, Lancashire.
		United Kingdom EMail: skapp@reapertech.com Appendix This code which implements HMAC-RIPEMD160 using an existing RIPEMD- 160 library.
		It assumes that the RIPEMD-160 library has similar API's as those of the MD5 code described in RFC 1321.
	www.faqs.org /rfcs/rfc2286.html (504 words)

	RIPEMD (Site not responding. Last check: 2007-11-07)
		RIPEMD is a cryptographic hash based upon MD4.
		It's been shown to have weaknesses and has been replaced by RIPEMD-128 and RIPMD-160.
		Search - Recent changes - 7 References - About Wikit - Go to The Tcler's Wiki - Help
	wiki.tcl.tk /ripemd (150 words)

	256 Software
		SHA1 160bits, MD5/MD4 120bits, RIPEMD-128 128 bits RipeMD-160 160 bits, CRC32, SHA-256 256 bits SHA-384 384 bits SHA-512 512 bits and HAVAL 256 Freewareversion.
		sha 512 512 bits, dpasha, sha1, ripemd 160, haval 256, ripemd 128, sha 384, paehl, sha 256, crc32
		Fantastic tool to speed up windows or speed down windows -256~+256 times, All software (such as games or movies) will change their speed after you adjust the speed rating in !xSpeed.
	www.soft911.com /find/256.html (539 words)

	Open Directory - Science: Math: Applications: Communication Theory: Cryptography: Algorithms: Message Digests (Site not responding. Last check: 2007-11-07)
		RIPEMD-160 hash function - A 160-bit cryptographic hash function designed as a secure replacement MD4, MD5, and RIPEMD.
		Tiger: A Fast New Hash Function - Optimized for 64-bit processors and produces 128, 160, or 192-bit hashes.
		Whirlpool Hashing Function - A 512-bit hashing function, submitted to NESSIE and selected as finalist.
	dmoz.org /Science/Math/Applications/Communication_Theory/Cryptography/Algorithms/Message_Digests (172 words)

	Free Java-Software - Jacksum, a java checksum utility
		The paper also mentions collisions for the full RIPEMD-128, however the hexdump example in the doc doesn't generate a collision (while all the other examples in the doc have been verified, the RIPEMD hexdump example seems to have a typo).
		ripe-md160 comment: RIPEMD was developed in the framework of the
		comment: the hash value is the first 160 bits of the
	www.jonelo.de /java/jacksum (5607 words)

	Standard Cryptographic Algorithm Naming
		The digest output length is equal to the cipher block size.
		There are only a small number of block ciphers with a block size of 160 bits or greater, and arguably none of these have had extensive analysis (especially in the context of use in these 20 hash constructions).
		The fl box model used in the BRS paper is controversial.
	www.eskimo.com /~weidai/scan-mirror/md.html (3581 words)

Try your search on: Qwika (all wikis)