Perpustakaan judul masih dalam tahap pengembangan, admin siap menampung kritik dan saran
Autorisasi User Pada Aplikasi Basis Data
Berbasis Komputer Programming
SRI RAHAYU NINGSIH (2003) | Skripsi | Teknik Informatika , Teknik Informatika
Bagikan
Ringkasan
Authorization represent a process giving of permission to someone to do
or have something. Authorization limit or arrange consumer in accessing
application. Its arrangement usually conducted by administrator. Cryptography is
an artistic or science to protect message. One of the algorithm of cryptography is
DES (Data Encryption Standard). DES key for the process of encryption and
decryption must be same. DES operate on binary system. DES will divide data in
each including become 64 bit key and 56 bit. 64 bit data permutation will be
divided two each 32 bit, then each this 32 bit data will be operated by substitution
and addition of key up to 16 step. Afterwards, both this data joined become 64 bit
again and conducted by final permutation which represent opponent of
permutation early. Enhanced key at the time operation of encryption have separate
process. Decryption process do not far differend from data encryption process. Its
difference happened at the time of usage key and shifted of bit.
Applying authorization and algorithm DES for database application
become one of the way to protect data, more than anything else the application run
at network system hence authorization and DES very useful for the security used
data.
In database very required rights access or Authorization to every user in
using its application. With existence of user authorization hence each user have
boundaries in accessing an application. Algorithm of DES, set key yielded for the
process of erratic encryption so that result of same encryption becoming not same.
Besides result of from process of encryption always more than 64 bit while at
theory result of encryption is 64 bit. This cause inappropriate between practice
and theory, and unresolved till now why the mentioned earn happened.
At implementation in network, process the way application become
slower compared to the way application at computer of stand alone. The
mentioned can be caused by the existence transfer of data server to client or on the
contrary passing medium hardware in the form of cable.
Ringkasan Alternatif
Authorization represent a process giving of permission to someone to do
or have something. Authorization limit or arrange consumer in accessing
application. Its arrangement usually conducted by administrator. Cryptography is
an artistic or science to protect message. One of the algorithm of cryptography is
DES (Data Encryption Standard). DES key for the process of encryption and
decryption must be same. DES operate on binary system. DES will divide data in
each including become 64 bit key and 56 bit. 64 bit data permutation will be
divided two each 32 bit, then each this 32 bit data will be operated by substitution
and addition of key up to 16 step. Afterwards, both this data joined become 64 bit
again and conducted by final permutation which represent opponent of
permutation early. Enhanced key at the time operation of encryption have separate
process. Decryption process do not far differend from data encryption process. Its
difference happened at the time of usage key and shifted of bit.
Applying authorization and algorithm DES for database application
become one of the way to protect data, more than anything else the application run
at network system hence authorization and DES very useful for the security used
data.
In database very required rights access or Authorization to every user in
using its application. With existence of user authorization hence each user have
boundaries in accessing an application. Algorithm of DES, set key yielded for the
process of erratic encryption so that result of same encryption becoming not same.
Besides result of from process of encryption always more than 64 bit while at
theory result of encryption is 64 bit. This cause inappropriate between practice
and theory, and unresolved till now why the mentioned earn happened.
At implementation in network, process the way application become
slower compared to the way application at computer of stand alone. The
mentioned can be caused by the existence transfer of data server to client or on the
contrary passing medium hardware in the form of cable.