ENKRIPSI DEKRIPSI DATA MENGGUNAKAN METODE STREAM DAN VIGENERE CIPHER
ABSTRACT: Security and
confidentiality when exchanging data and information becomes very important in
the era of information and communication technology today. One of the security
techniques that can be learned and
developed is cryptography.
cryptography is the
science and art
to keep secret
the way encrypting messages into a form that can no
longer understand its meaning. Message is data or information that can be read
and understood its meaning or commonly called plaintext. Messages that have been
encrypted called ciphertext. The process of encrypting a plaintext into ciphertext
is called encryption, while the process of changing ciphertext into plaintext
is called decryption. Lots of existing cryptographic methods, which are divided
into two, namely Classical and Modern, among these methods vigenere ciphers and
stream ciphers. To ensure the
security of encrypted
information, the cryptographers trying
to create a complex
algorithm, one of
them by combining
several existing algorithms.
This thesis discusses
a stream cipher ethod , combined with vigenere cipher
algorithms in order to get stronger . From
the test results obtained that the combination of stream ciphers and
cipher vigenere have good performance in terms of file size and the time to do
exactly the encryption process.
Penulis: F. Wiwiek Nurwiyati,
Indra Yatini B
Kode Jurnal: jptmesindd130313
