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Topic: RIPEMD-160

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RIPEMD - Wikipedia, the free encyclopedia RIPEMD-160 (RACE Integrity Primitives Evaluation Message Digest) is a 160-bit message digest algorithm (and cryptographic hash function) developed in Europe by Hans Dobbertin, Antoon Bosselaers and Bart Preneel, and first published in 1996. On the other hand, RIPEMD-160 is a less popular and correspondingly less well-studied design. In August 2004, a collision was reported for the original RIPEMD [1]. en.wikipedia.org /wiki/RIPEMD-160   (283 words)

Citations: RIPEMD-160: A Strengthened Version of RIPEMD - Dobbertin, Bosselaers, Preneel (ResearchIndex) 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. Dobbertin, A. Bosselaers and B. Preneel, "RIPEMD-160: A strengthened version of RIPEMD", Fast Software Encryption -- FSE '96, Lecture Notes in Computer Science, 1039 (1996), Springer-Verlag, 71-82. For both [RFC 2522] Identity Verification and Validity Verification, the verification key is the RIPEMD 160 citeseer.ist.psu.edu /context/232201/0   (3048 words)

The RIPEMD-160 page 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. Dobbertin, A. Bosselaers, B. Preneel, ``RIPEMD-160, a strengthened version of RIPEMD,'' (ps, pdf). Dobbertin, A. Bosselaers, B. Preneel, ``RIPEMD-160, a strengthened version of RIPEMD'' (ps, pdf). www.esat.kuleuven.ac.be /~bosselae/ripemd160.html   (1704 words)

Windows MD5 Signature Generator: RIPEMD Cryptographic Hash Function RIPEMD-160 is a 160 bit replacement for earlier 128 bit message digests such as MD5. 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. It is for this reason that the designers of the SecExMail email cipher, for example, have chosen the RIPEMD-160 algorithm. www.bytefusion.com /products/ens/secexmd5+/ripemdcryptographichashfunc.htm   (210 words)

Re: DSA hash algorithms * "Hal Finney" wrote: > (Although RIPEMD-160 has not been attacked, the earlier RIPEMD hash was > broken last year, and it seems plausible that the new attacks could work > against RIPEMD-160 as well.) IBTD. 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. Or we could change the spec to allow > any hash >= 160 bits to be used with DSA keys. www.imc.org /ietf-openpgp/mail-archive/msg09342.html   (196 words)

poster-papers.txt It is based on RIPEMD-160 and particularly on the two trail -construction of RIPEMD. The output is 160 bits long, so there will always be 160 bits of secret information in the internal variable. 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)

PlanetPenguin - Join the Linux World - is a cryptographic hash function with a 160 bit output. www.planetpenguin.de /manpage-3-ripemd.3ssl.html   (171 words)

rfc2857.txt The HMAC algorithm provides a framework for inserting various hashing algorithms such as RIPEMD- 160. Padding requirements are specified in [RIPEMD-160] and are part of the RIPEMD-160 algorithm. www.ietf.org /rfc/rfc2857.txt   (1452 words)

160 a: Air Force Technology - Tu-160 Blackjack - Strategic Bomber A coalition of more than 160 humanitarian organizations working on disaster relief, refugee-assistance, and sustainable development programs. Map of the state of Washington with counties linking to over 160 SDA churches, many of which feature websites. Merchandise as well as practical and historical information from Tiffany and Co.'s 160 years. www.matrilogic.com /160-a.html   (309 words)

broadband » Forums » Security » I like Truecrypt - but... It does not matter how many bits a HMAC outputs, the only concern in this case is that its output must be unbiased and the values must be uniformly distributed (which both HMAC-SHA-1 and HMAC-RIPEMD-160 comply with). 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. www.dslreports.com /forum/remark,11200006~start=8~mode=flat   (2481 words)

Windows MD5 Signature Generator: US Secure Hash Algorithm 1 (SHA1) SHA1 uses a 160 bit digest which is designed to replace earlier 128 bit message digests such as MD5. 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. Successful attacks on the latter have been demonstrated in cryptographic literature. www.bytefusion.com /products/ens/secexmd5+/ussecurehashalgorithm1(sh.htm   (136 words)

rmd128.h A 160-bit hash * result is obtained using RIPEMD-160. This function is a * plug-in substitute for RIPEMD. homes.esat.kuleuven.be /~cosicart/ps/AB-9601/rmd128.h   (390 words)

Manpage of RIPEMD 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. Read the content of the input file and calculates its 160-bit cryptographic hash value (RIPEMD-160). 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 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. But MD5 was (theoretically) broken in 1996, and RIPEMD has been considered weak for years. > 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. www.imc.org /ietf-openpgp/mail-archive/msg07009.html   (325 words)

ripemd160 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)

RIPEMD-160 Als die Angriffspunkte gegen MD5 bekannt wurden und einige Experten meinten, daß 128 Bit zuwenig seien, wurde RIPEMD-160 von Dobbertin, Bosselaers und Preneel als Nachfolger von RIPEMD entwickelt Dadurch scheint RIPEMD resistent gegen differentielle und lineare Kryptanalyse zu werden. ) der Europäischen Union wurde RIPEMD, ebenfalls eine Variante von MD4, entwickelt. www.larsnoebel.de /diplom/node40.html   (122 words)

PGP DH vs. RSA FAQ RIPEMD-160 as implemented in PGP has no known weaknesses. 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) SEE ALSO rmd160(1), md4(3), md5(3), sha1(3) H. Dobbertin, A. Bosselaers, B. Preneel, RIPEMD-160, a strengthened version of RIPEMD. 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(). www.rocketaware.com /man/man3/rmd160.3.htm   (501 words)

RIPEMD It's been shown to have weaknesses and has been replaced by RIPEMD-128 and RIPMD-160. RIPEMD is a cryptographic hash based upon MD4. Search - Recent changes - 7 References - About Wikit - Go to The Tcler's Wiki - Help wiki.tcl.tk /ripemd   (150 words)

160 Years: 155 156 157 158 159 - 160 - 161 162 163 164 165 www.fact-library.com /160.html   (68 words)

RIPEMD-160: A Strengthened Version of RIPEMD - Dobbertin, Bosselaers, Preneel (ResearchIndex) RIPEMD-160: A Strengthened Version of RIPEMD - Dobbertin, Bosselaers, Preneel (ResearchIndex) f (such as the Message Digest family MD4 [47] MD5 [48] and derived functions SHA 1 [36] HAVAL [40] RIPEMD [46] or RIPEMD 160 One such proposal was RIPEMD, which was developed in the framework of the EU project RIPE (Race Integrity Primitives Evaluation). citeseer.ist.psu.edu /dobbertin96ripemd.html   (578 words)

draft-ietf-ipsec-auth-hmac-ripemd-160-96.ann The European community prefers RIPEMD over both SHA-1 and MD5, so an HMAC mode is necessary that describes the use of RIPEMD. Technical Summary This document describes an HMAC mode for the RIPEMD secure hash algorithm for use within ESP and AH in IPSEC. 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)

RIPEMD Funktionen - rmd.h Diese beiden Funktionen erleichtern den Umgang mit den RIPEMD Hashfunktionen  (siehe 2.4.1 auf Seite mcntp.sourceforge.net /da-doku/node52.html   (46 words)

PowerBasic Crypto Archives - RIPEMD-160 DESCRIPTION: PBCC3/PBWIN7 implementation of the 160-bit RIPEMD cryptographic hash function. Intended to be used as a secure replacement for the 128-bit hash functions MD4, MD5, and RIPEMD. NOTES: See also Florent Heyworth's PB Inline Assembly implementation for all versions of PowerBASIC. www.pbcrypto.com /view.php?algorithm=ripemd-160   (281 words)

SHA-1 Broken 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. 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. scottstuff.net /blog/articles/2005/02/16/sha-1-broken   (256 words)

RFC 2286 (rfc2286) - Test Cases for HMAC-RIPEMD160 and HMAC-RIPEMD128 It assumes that the RIPEMD-160 library has similar API's as those of the MD5 code described in RFC 1321. United Kingdom EMail: skapp@reapertech.com Appendix This code which implements HMAC-RIPEMD160 using an existing RIPEMD- 160 library. [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. www.faqs.org /rfcs/rfc2286.html   (504 words)

sci.crypt: Re: RIPEMD broken, *NOT* RIPEMD-128 and RIPEMD-160 In reply to: Francois Grieu: "RIPEMD broken, *NOT* RIPEMD-128 and RIPEMD-160" sci.crypt: Re: 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)

Hyper Hasher Suite - Features - http://www.hyperhasher.com SHA1, SHA256, SHA384, SHA512, MD4, MD5, Tiger, HAVAL, RIPE128, RIPE 160, RIPE256, RIPE320, Whirlpool, Panama www.hyperhasher.com /features.asp   (280 words)

Standard Cryptographic Algorithm Naming 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 digest output length is equal to the cipher block size. The black box model used in the BRS paper is controversial. www.eskimo.com /~weidai/scan-mirror/md.html   (3581 words)

Standard Cryptographic Algorithm Naming Minimum 64, maximum 160, multiple of 32 bits. www.amasci.com /~weidai/scan-mirror/mac.html   (2612 words)

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