Examples of 's-box' in a sentence
Meaning of "s-box"
S-box (noun) - In cryptography, an S-box is a substitution box that is used to perform substitution operations on blocks of data
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- A basic component of symmetric-key algorithms, which performs substitution, transforming one set of bits into another.
How to use "s-box" in a sentence
Basic
Advanced
s-box
An S-box is usually not simply a permutation of the bits.
Thus any input value can be provided to any S-box.
Both the S-box and the mix columns operations are involutions.
The round function uses only XORs and S-box lookups.
The Rijndael S-Box was specifically designed to be resistant to linear and differential cryptanalysis.
Apparatus in accordance with claim 2 wherein said lookup table is derived from a DES S-Box.
It uses the same S-box as AES in a custom construction.
The nonlinear function can comprise a lookup table, which could be advantageously derived from a DES S-Box.
Biham and Shamir found that even small modifications to an S-box could significantly weaken DES.
The S-box of the NewDES cipher is derived from the United States Declaration of Independence.
Linear transformation matrix After the S-box substitution function, a linear transformation I is performed.
Each row can be checked independently, and the expected number of solutions is 2 per S-Box.
The S-Box taps unused space.
By introducing a new composite field, the S-Box structure is also optimized.
In the attack, an algebraic function is used to represent an S-box.
See also
Any suitable S-box layer may be used.
S-boxes In principle any suitable S-box layer may be used in the block cipher.
Did you try using an S-box inversion on that keycard?
There are two versions of the Anubis cipher ; the original implementation uses a pseudo-random S-box.
Did you try using an S-box inversion on that key card?
This continues, replacing the entire P-array and all the S-box entries.
In cryptography, an S-box ( substitution-box ) is a basic component of symmetric key algorithms which performs substitution.
Generating the S-Box.
Each round consists of S-box lookups, key additions, and an unkeyed two-round Feistel network.
Element of S-Box.
Did you try using an S-box inversion on that keycard? No.
S-Box is a little bit like Mightyfew.
A first characteristic of the S-box transformation unit 21 shown in Fig.
The S-Box illustrated above ( S ₁ ) has this desirable property.
Did you try using an S-box inversion on that key card? No.
In FIG . 1 a, a datum x is combined on input to the S-box 1 with a cryptography key k.
Inside the S-box first transformation unit 13, a transformation table T is provided.
A nonlinear function is then applied, an S-box 213 being able to be used to implement it.
The mask m ′ on output from S-box S ′ is that actually used by the masked variable.
In a preferred embodiment described here, each S-box operates on a 4-bit sub-block.
The output of the S-box layer is a 32 bit data block.
