Cipher

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CIPHER. An arithmetical character, used for numerical notation. Vide Figures, and 13 Vin. Ab. 210; 18 Eng. C. L. R. 95; 1 Ch. Cr. Law, 176.
     2. By cipher is also understood a mode of secret writing. Public ministers and other public agents frequently use ciphers in their correspondence, and it is sometimes very useful so to correspond in times of war. A key is given to each minister before his departure, namely, the cipher for writing ciphers, (chiffre chiffrant,) and the cipher for deciphering (chiffre dechiffrant.) Besides these, it is usual to give him a common cipher, (chiffre banal,) which is known to all the ministers of the same power, who occasionally use it in their correspondence with each other.
     3. When it is suspected that, a cipher becomes known to the cabinet where the minister is residing, recourse is had to a preconcerted sign in order to annul, entirely or in part, what has been written in cipher, or rather to indicate that the contents are to be understood in an inverted or contrary sense. A cipher of reserve is also employed in extraordinary cases.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Gorgon, "Pipeline implementation of the 128-bit block cipher CLEFIA in FPGA," in Proceedings of the 2009 International Conference on Field Programmable Logic and Applications, pp.
The Simeck family block cipher encryption and decryption round functions have ARX (AND ([*]), rotation (rotation left, (<<<)), eXclusive-OR ([cross product])) operations.
In this paper, we show that the lightweight block cipher HIGHT is prone to algebraic fault analysis, which can be feasible with a stealthy HT.
The Tiny Encryption Algorithm (TEA) is a block cipher encryption algorithm that uses a symmetric key encryption technique (Needham, 1994; Wheeler, 1997).
Step 3: Sender encrypts the data using block cipher mechanism with encrypted cluster key [N.sub.ck] to the next hop cluster member.
Regazzoni, "Midori: A Block Cipher for Low Energy (Extended Version)," ASIACRYPT, Vol.
Mahmood, "A novel method for designing nonlinear component for block cipher based on TD-ERCS chaotic sequence," Nonlinear Dynamics, vol.
Six block cipher are selected for analysis purpose.
The second shortcoming comes from usage of block cipher, which forces to align data to single block sizes.
After that, it encrypts into a block cipher algorithm which is the same as AES or Blowfish by using a common secret key which the PHD and the gateway allocate in advance.
Block Cipher. Block cipher is an algorithm operating on blocks which is fixed length of bits; the blocks which have the fixed length of bits are encrypted using the symmetric key [14].