SANDI DATA MENGGUNAKAN KRIPTOGRAFI KLASIK HILL CIPHER YANG DIPERKUAT DENGAN VIGEN`ERE CIPHER

KHOIRUZ ZAHRA, . (2015) SANDI DATA MENGGUNAKAN KRIPTOGRAFI KLASIK HILL CIPHER YANG DIPERKUAT DENGAN VIGEN`ERE CIPHER. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Kriptografi adalah studi teknik matematika yang berhubungan dengan aspek keamanan informasi. Hill cipher dan Vigen`ere cipher merupakan bagian dari metode kriptografi. Pada skripsi ini dibahas metode modifikasi Hill cip- her yang diperkuat dengan Vigen`ere cipher. Proses enkripsi plaintext dengan Hill cipher menggunakan persamaan Ci = K.Pi (mod m). Enkripsi pada Hill cipher menghasilkan ciphertext sementara, kemudian dilanjutkan dengan enkripsi Vigen`ere cipher menggunakan persamaan Ci = Ki +Pi (mod m), sehingga meng- hasilkan ciphertext. Proses dekripsi ciphertext dengan persamaan Vigen`ere cipher Pi = Ki − Ci (mod m)yang menghasilkan plaintext sementara, kemudian dilan- jutkan dengan dekripsi Hill cipher Pi = K−1.Ci (mod m) menghasilkan plaintext semula. Cryptography is the study of mathematical techniques related to aspects of information security. Both Hill cipher and Vigen`ere cipher are parts of crypto- graphy methode. In this thesis, discussed the modified method of Hill cipher which is reinforced by Vigen`ere cipher is the combination of both cipher. the plaintext is encrypted by Hill cipher using equation Ci = KPi (mod m). The encryption using Hill cipher results temporal ciphertext, which is continued then by Vigen`ere cipher encryption using equation Ci = Ki + Pi (mod m). This will result cipher- text. Conversely, to get back the plaintext, the ciphertext is decrypted by vigen`ere cipher Pi = Ki −Ci (mod m) in order to get the temporal plaintext. Subsequently, it is continued by Hill cipher decryption Pi = K−1.Ci (mod m) to get the former plaintext.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Drs. Mulyono, M.Kom. ; 2). Ria Arafiyah, M.Si.
Subjects:	Sains > Matematika
Divisions:	FMIPA > S1 Matematika
Depositing User:	Users 8922 not found.
Date Deposited:	25 May 2022 06:12
Last Modified:	25 May 2022 06:12
URI:	http://repository.unj.ac.id/id/eprint/28699

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