An Extended Version of the Polybius Cipher

Kondo, Tabu S.; Mselle, Leonard J.

doi:10.5120/13803-1836

Cited by 9 publications

(17 citation statements)

References 3 publications

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“…Cryptography is the science of creating secret codes; Cryptanalysis is the science of breaking codes. These two aspects are closely related; when creating a secret code the analysis of its security plays an important role [3]. It has been an interesting part to understand.…”

Section: Introductionmentioning

confidence: 99%

Rail-Fence-Cryptography-in-Securing-Information

Siahaan¹

2017

Preprint

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Rail Fence Cipher is a further development method of Caesar Cipher. In Caesar algorithm, the results derived from the ciphertext letters shifting each character in the plaintext. While in the Rail Fence, it is taken from the ciphertext block formation matrix diagonally. The level of security in this method has advantages than in the previous method. In this study, the research tries to encrypt and decrypt the message using the Rail Fence algorithm. The ciphertext is obtained by taking a certain set of characters in the line that has been determined earlier.

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Section: Introductionmentioning

confidence: 99%

Rail-Fence-Cryptography-in-Securing-Information

Siahaan¹

2017

Preprint

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“…To encrypt a word; every letter of the word is shown as number of the row and column in the square. For example; The letter 'D' is encrypted as '14' and the letter 'S' as '43' [4]. When the POLYBIUS word is encrypted, ciphertext string is created with the line and column numbers as in Table 2.…”

Section: Methodsmentioning

confidence: 99%

“…• Since the letters I and J are encrypted with the same code, the decoder must interpret them. For this reason, there is a possibility of error in decryption [4]. An impoved version of Polybius encryption is developed in this study which uses a shifting key to get rid of those weaknesses.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Türkçe Karakter Destekli Genişletilmiş Kayan Polybius Karesi ile Şifrelenmiş Veriyi Gömme

Macit

Koyun

Yüksel

2019

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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The security of a message transmitted from one peer to another is a matter of many studies over centuries. Today, with digital communication, billions of data are transmitted from one point to another every milisecond. That is why data security has become one of the most studied topics. In this study, an ancient encryption method called Polybius square which has been a source of inspiration for today's encryption methods is introduced. In addition an expanded version of Polybius square was developed adding Turkish character support. An encryption key has also been added to the Polybius cipher. The entire message can be encrypted with a key or with different keys in each character of the message. The encrypted message is hidden within the pixels of the picture files using the LSB algorithm. Thus, when the message is transmitted to the other side, it is encrypted with a private key, hidden inside a cover data, and has become unsuspicious. To measure the change in cover data; MSE, PSNR and SSIM measurement methods are used. The method proposed in the study is coded with a visual programming language. The developed software has been introduced and its results are shown.

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“…To clarify the role of conduction electron, we divide the electron charge density p(r) into two parts, where q and R , are effective charge of m-th atom and P (r) =Pin(') +P c(r) ( 4 ) Consequently atomic distance from Fe nucleus to CO be divided into two atom plays very important role in determining the electric field Thereby the influence of CO atom to electric field gradient in Fe I1 site should be concluded to be much smaller than that in Fe I site because of the term of I R , I -3. This means that the change in Q.S.…”

Section: Sitementioning

confidence: 99%

Analysis of quadrupole splitting of transition metal doped β-FeSi/sub 2/

Kondo

Hasaka²,

Morimura³

Fifteenth International Conference on Thermoelectrics. Proceedings ICT '96

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Large quadrupole splittings(Q.S ) are observed in CO doped specimen , compared with other transition metal doped specimens while isomer shifts( 13.) do not show large value Since Q.S is associated with the electric field gradient at nucleus of iron atom ; we calculate the potential at nucleus site , assuming . the interaction between LA-phononconduction electron Through the calculations, it is found that electric field gradient increase with the number of phonons attached to a conduction electron (=< Nph >). Accordingly large Q S for CO doped specimen are considered to be due to large < N , , I, > in comparison with those for other transition metal doped specimen

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An Extended Version of the Polybius Cipher

Cited by 9 publications

References 3 publications

Rail-Fence-Cryptography-in-Securing-Information

Rail-Fence-Cryptography-in-Securing-Information

Türkçe Karakter Destekli Genişletilmiş Kayan Polybius Karesi ile Şifrelenmiş Veriyi Gömme

Analysis of quadrupole splitting of transition metal doped β-FeSi/sub 2/

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