| dc.description.abstract | Tthe security for data that be stored in computer at present has become an absolute
condition. This is closely related to the importantance of the data to the appropriate
people, whether it is authenticity or not. The data is out of use if it have been tapped by
people who have no right to it.
In cryptography there is a function that is suitable for security applications such
as authentication and message integrity called Hash function, which is functioning as a
recipient of an arbitrary length input string and converts it into a string which length
remains the same output with the input string but much smaller.
Cryptography MD-5 is one of the one-way hash function created by Ronald
Riverst 1991. MD5 is an improvement from MD4 after MD4 successfully attacked by
kriptanalis. This algorithm receives a message as input with an arbitrary sizes and
produce a message digest of length 128 bits. In general the message digest creation steps
are the addition of bits booster, increasing the length of the original message, initiate a
buffer, processing the message in 512-bit block size. | en_US |
