In cryptography, MD5 (Message-Digest algorithm 5) is a widely used MD5 is one in a series of message digest algorithms designed by Professor Ronald...
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en.wikipedia.org/wiki/MD5
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The MD5 algorithm is an extension of the MD4 message-digest algorithm 1,2]. MD5 is slightly slower than MD4, but is more "conservative" in design. MD5 was designed because it was felt that MD4 was perhaps being adopted for use more quickly than justified by the existing critical review;
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www.faqs.org/rfcs/rfc1321.html
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If you generate MD5 message digests for the critical files on your system, and store them securely, you will be able to determine if someone has broken into your system and changed one of those files...
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www.tech-faq.com/message-digest.shtml
www.tech-faq.com/message-digest.shtml
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A summary such as this is called a message digest, oneway function, or hash function. Message digests create short, fixedlength representations of longer,
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ospkibook.sourceforge.net/docs/OSPKI-2.4.7/OSPKI-html/d...
ospkibook.sourceforge.net/docs/OSPKI-2.4.7/OSPKI-html/digests.htm
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Optimized for 64-bit processors and produces 128, 160, or 192-bit hashes. Note that in the original reference implementation that we have published in this page there was a typo that used the wrong bit order when it padded the '1' bit at the end of the message. It used the constant 0x80, rather than 0x01 to append this bit.
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www.cs.technion.ac.il/~biham/Reports/Tiger/
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This MessageDigest class provides applications the functionality of a message digest algorithm, such as MD5 or SHA. Message digests are secure one-way hash functions that take arbitrary-sized data and output a fixed-length hash value.
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java.sun.com/j2se/1.4.2/docs/api/java/security/MessageD...
java.sun.com/j2se/1.4.2/docs/api/java/security/MessageDigest.html
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Mar 12, 2002 This page describes the term message digest and lists other pages on the Web where you can find additional information.
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www.webopedia.com/TERM/m/message_digest.html
www.webopedia.com/TERM/m/message_digest.html
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Using similar techniques Hans produced in the Fall of 1995 collisions for (all 3 rounds of) MD4. The attack on MD4 requires only a few seconds on a PC, and still leaves some freedom as to the choice of the message, clearly ruling out MD4 as a collision resistant hash function.
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homes.esat.kuleuven.be/~bosselae/ripemd160.html
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The message digest can then be input to the Digital Signature Algorithm (DSA) which generates or verifies the signature for the message. Signing the message digest rather than the message often improves the efficiency of the process because the message digest is usually much smaller in size than the message.
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www.itl.nist.gov/fipspubs/fip180-1.htm
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