Questions tagged [camellia]

Camellia is a 128-bit, symmetrical block cipher jointly developed by Mitsubishi and NTT of Japan.

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Why Camellia paper declares that it is faster than Rijndael while it is actually much slower?

I'm writing an assignment on Camellia cipher, reading the [NTT paper][1] they declare a speed at least comparable with Rijndael, but, searching around, I found that it is actually much slower [2]. I ...
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Block Ciphers with encryption speed similar to AES

What all block ciphers can achieve encryption speed similar/near to AES on general purpose computers with AES-NI enabled and disabled. Camellia seems to be near to AES, and Twofish seems to be much ...
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Cryptographic algorithms comparison, AES vs Camellia

Which parameters should be used to compare AES vs Camellia? Their runtime ? The size of the encrypted data output?
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Linear Approximation and Linear Probability of Camellia Sbox

In this article,Analysis of Camellia (para 2. Differential and linear cryptanalysis, page 3), it says The maximum bias of a linear approximation through one S-box is $2^{-4}$ , which gives a ...
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Camellia Sbox - Linear Approximation Probability [duplicate]

One Page 7, of Document Camellia Design and Analysis The author says, In the case of Camellia, the maximum diferential/linear probabilities of s-boxes are $2^{-6}$. Since Camellia S-boxes are ...
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Side Channel Attacks

How to make cipher resist against Side channel Attacks. Specially Timing Attack, Cachet Timing Attach, Simple/ Differential Power Analysis. Uptil now it seems all Standard Algorithms like AES, ...
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Why Camellia has 4 Sbox

I asked a question about using 16 different Sboxes in AES each for one state byte instead of using same One Sbox for substituting 16 state bytes (See the Question Increase in AES SBox). The answers i ...
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Countering Cryptographic Attacks

By reading Camellia Design and Analysis document following is my understanding about few cryptographic attacks from designer point of view. Differential and Linear Crypt-analysis. Number of Active S-...
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Camellia Key Schedule

Camellia is widely used, an international standard now. Its key schedule seems to be too simple compared to other famous ciphers like Twofish and CAST-256. What are the prerequisites for the key ...
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Symmetric cipher speed (AES vs Camellia vs Twofish)

If I have understood correctly, Twofish is more secure (harder to break) than AES and Camellia, but it's slower than both. How can I measure the speed difference between AES vs Twofish and Camellia ...
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HW acceleration for Camellia cipher (x86_64/AES-NI/AVX2)

Modern processors support hardware acceleration for various crypto functions such as AES directly, or general vector operations which can be used in crypto ...
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How to calculate the avalanche effect in aes-256?

I am a beginner in cryptography. I'm testing AES-128 bit key, AES-256 bit key, and Camellia-256 bit key. I'm using AES-256, 9 character salt, CBC mode, PKCS #5 padding, and the ciphertext using ...
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Do any non-US ciphers exist?

Plenty of ciphers come out of the USA from government research or selection competitions. AES and DES are examples. Are there any public ciphers produced by other states, China or Iran for example? ...
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Camellia or AES - which should I use? [closed]

Imagine I am a software developer. I want a block cipher, and I have the choice of using AES or Camellia. Which should I use? Which makes more sense from a technical perspective, and why? I need ...
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Camellia cipher - is it a symmetric or asymmetric cipher?

I read a wiki page about Camellia cipher and know that it is a block cipher that can use 128-bit, 192-bit or 256-bit keys. But I cant find any information about if its a symmetric cipher (uses one key ...
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Why is CAMELLIA suddenly so widely used?

When nowadays I point my browser to https sites, the cipher that is on most occasions used is Camellia. My browsers (Chrome and Firefox) seem to prefer it, even when AES is available. Is that not ...
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Why does nobody use (or break) the Camellia Cipher?

If Camellia is of equivalent security and speed to AES, concerns arise. First of all, assuming the above, why is Camellia so rarely used in practice? Why aren't there any breaks in Camellia? Does ...