Diff for "Csce877Ch12Notes"

Differences between revisions 3 and 4

Terms

big endian / little endian	[http://www.cs.umass.edu/~verts/cs32/endian.html endian-ness]
compression function	see Csce877Ch11Notes
HMAC	A Message Authentication Code based on a cryptographic Hash function or HMAC for short. NOTE: MD5 and SHA-1 are cryptographic hash functions
MD4	Precursor to MD5
MD5	Message Digest algorithm number 5. developed by Ron Rivest at MIT. Most widely used secure hash algorithm until a few years ago when brute force caught up to it - still widely used though!
RIPEMD-160	Yet another message-digest algorithm developed as a response to some of the MD4/5 problems. Developed RACE Integrity Primitives Evaluation project in Europe.
SHA-1,256,384,512	The number 1 corresponds to a 160-bit message digest. Each of the other numbers correspond directly to the size of the message digest. SHA is a NIST standard secure hash algorithm that works on 512-bit blocks.

12.1 What is the difference between little endian and big endian format?

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+||compression function||||<(> see Csce877Ch11Notes ||
||HMAC||||<(> A Message Authentication Code based on a cryptographic Hash function or HMAC for short. NOTE: MD5 and SHA-1 are cryptographic hash functions ||
||MD4 ||||<(> Precursor to MD5 ||
||MD5 ||||<(> Message Digest algorithm number 5. developed by Ron Rivest at MIT. Most widely used secure hash algorithm until a few years ago when brute force caught up to it - still widely used though!||
||RIPEMD-160 ||||<(> Yet another message-digest algorithm developed as a response to some of the MD4/5 problems. Developed RACE Integrity Primitives Evaluation project in Europe.||
||SHA-1,256,384,512|| The number 1 corresponds to a 160-bit message digest. Each of the other numbers correspond directly to the size of the message digest. SHA is a NIST standard secure hash algorithm that works on 512-bit blocks. ||

== Review Questions ==

'''12.1 What is the difference between little endian and big endian format?'''