Is Twofish better than AES?

Is Twofish deprecated?

I've been asked to write a Java implementation of Twofish, and found.

several references to a "Twofish", which I was convinced was deprecated. I googled it, but found little. Is this correct, and/or if "Twofish" is deprecated, what's the successor? 2 Answers.
The cipher has been in existence since at least 1990, though it is based on a 1992 paper. However, as the paper notes, many of the details were changed in a later paper which was also based on a previous paper. This was published in 1999, but it seems that it may have been published earlier. But the earlier version has some features that the later version does not. The later version is the one we are going to discuss in this answer.

The key point is that Twofish has three different modes of operation. These modes have names as follows. Note that these names are not standard names, but rather are names provided by the paper authors.

Unrestricted plaintext attack (PTA) where the attacker has access to both the plaintext and the ciphertext. It's name comes from the fact that this is when the attacker can break the cipher in the simplest way.

Indefinite input attack (IIA) where the attacker has access only to the ciphertext. IIA does not mean the same thing as PTIIA is an attack on the ciphers mode of operation.

Key recovery attack (KRA) where the attacker has access only to a ciphertext and its corresponding key. This is a type of IIIn this paper we use KRA as the attacker, and we assume that the key is secret. The first mode is used in encrypting data. In this case the secret key is referred to as the master key, while the remaining modes are referred to as subkeys.

In the paper we discuss how to design a cipher so that it is secure against all three types of attacks described above. Specifically, we show how to choose the number of subkeys and the subkey sizes so that there are no weak keys.

Our first objective in choosing the subkey sizes is to make it hard for the attacker to generate weak keys.

Is Twofish better than AES?

Well, there's a good reason to be interested:

In June, the NSA, along with several US government agencies, publicly disclosed that it has been spying on, among others, the world's largest telecoms companies, banks, and retailers.

One of the companies mentioned in the secret order was an e-commerce business, and that company, which we'll call BigCo for ease of reference, had been using AES-256. BigCo decided that, rather than switch to AES-256 because it was easier to comply with the government, they would instead switch to Twofish, which was a harder change.

BigCo had the best of intentions. They wanted to be seen as compliant with the USA FREED Act, and they were willing to bet their own money on it. They decided that it was in their best interest to use the standard that was easier to implement, yet they had to go against the advice of anonymous source at a government agency in order to do so. (For the record, there is nothing wrong with taking advice from a government agency but it's important that the advice be unbiased and the sources of advice remain anonymous. What is wrong is when an employee of a US government agency makes secret deals with organizations that are being monitored.)

Of course, the NSA has the ability to look at the plaintext of e-mail, and so by switching to a weaker cipher it could expose its existence to whoever is monitoring them. I assume that a government agency like the NSA is smart enough not to compromise itself by accidentally disclosing too much information, but what happens when the organization is more concerned about compliance with its own policies and procedures than it is about keeping secrets? For that, there needs to be a balance between safety, security, and utility. There has to be an appropriate tradeoff between the degree of difficulty and ease of implementation, and the security-vs-utility balance is a matter of judgement. How much is enough? More will get done more quickly, but this is also how you can lose track of your job in an important company, become a high-level security expert, be promoted to CTO and then get fired for no reason a year later.

And so, one example I've heard of the security/utility tradeoff is that of OpenSSL and its SHA-1 hash.

Where is TwoFish's headquarters?

TwoFish is a UK-based company founded by Mark Miller and Simon Leitch.

We are based in London, though we're always looking for people from across the globe to work with us.

What languages does TwoFish support? The TwoFish team speaks English, Portuguese, and Spanish as well as our native British English. You can also read our articles in French, Dutch, German, and Italian.

Does TwoFish have any funding? If so, how was it obtained? We're funded by the founders and a number of angel investors. Our current investors include Alex Day, Founder and CEO of Woopra; Mike Butcher, Managing Director at HCL Technologies; and David Gough, Managing Partner at Crescendo Ventures.

What kind of products/services does TwoFish provide? We make tools that help businesses be more successful. We've built two apps, two e-commerce sites, and two business intelligence dashboards, plus a web site and data collection platform that can track anything on the internet.

What kind of data does TwoFish collect? Everything on our servers is user data. We make sure that it's anonymized. We don't sell or share any of the data with anyone.

What do your customers think of TwoFish? We have thousands of customers and we hear stories from them every day. They're very happy with us. Our customers have told us they love the service, the user experience, and the analytics.

Can you share one customer success story? Our customer called us up to say that they didn't realize that we had a tracking application on their website. They wanted to use our software to see which pageviews they were receiving from. Once they found out that we had been tracking them, they really liked the idea. They were a regular visitor to their website and we saw that their bounce rate was really high. Our software found out what their problems were and they were able to correct them with our product.

What is the competitive advantage of TwoFish? Our products are designed to make it easier for businesses to understand and take action on the information that they see on the internet. We give them all of the data and tell them what they should do with it.

Has Twofish ever been cracked?

It seems no.

A simple cipher by itself, but it can lead to another cipher, so the fact it hasn't been cracked leads me to believe that it has a weakness.

Also a new idea - using two different ciphers at the same time as part of a puzzle is one way to solve it without cracking it. So if you see how to get it to crack to one cipher, you have all the information you need to determine how to crack it to the other.

The following has been a bit of a challenge and involved a lot of thinking but will now be solved on paper. I hope everyone understands the problem in a better way. Thank you to all for your answers on this thread. Hopefully you will think this is interesting as well! Determine what it means. What do you want to do with these equations? What is the message?

The key is 3 numbers each of which takes the value 0, 1 or 2 (3 x). How many digits are there in the key? Determine the key by reducing the 3 key numbers to 2 numbers. This means adding together like values together. How does the key change when you add up the three numbers? (0 = 0, 1 = 1, 2 = 2).

Determine the original key from your 2 numbers. How do you do this? Determine whether your key is correct (1), (2), (3) or (4). Is your key correct? Explain.

I have the key, the encrypted text and am able to decode it to give me a list of 3 numbers. I do the following: This gives me a list of 2 numbers. From one of the two numbers, I'm able to calculate which of the three keys fits it.

Which is better Blowfish or Twofish?

So I'm doing some thinking about .

What's your opinion? Blowfish has a longer key schedule and is harder to invert because of the variable rounds per block. Twofish has better resistance against dictionary attacks. I have to say that I don't see any difference between them. Edit: To give a bit more background, I'm looking at these two algorithms to encrypt/decrypt files on my personal computer. I'm not particularly worried about someone eavesdropping on my hard drive, or trying to break into it.

For encrypting data, both are equally strong and can be considered as one of the most secure block ciphers in use today. Both are block ciphers, which means that they need to be used with a block cipher mode of operation, such as ECB, CBC, CFB, CTR, GCM, OFB, XTS, .

However, if you are encrypting a large file, I would suggest that you use a mode of operation such as CBC or CFB with Blowfish, whereas for Twofish, you should use CBC or CFB with CTR mode. For more information, see What block ciphers to use? So if you are looking for a block cipher that is "better" than Blowfish and Twofish, then you can say that both are equally good and there is no need to choose one over the other. In fact, the choice of which one to use depends on what you are going to use it for.

If you want a block cipher to encrypt a file, then both are equally strong, but if you are going to use them as a block cipher in a mode of operation, then you should use Blowfish as it is much faster than Twofish, even though it is slightly weaker.

Who invested in TwoFish?

The answer to this question is simple - the shareholders.

TwoFish was a public company and it was up to the shareholders to decide who got paid and who didn't.

TwoFish had a founder, I am not sure whether you can call it that in the legal sense, but it was always clear who the founder of TwoFish was - me. I am the founder of TwoFish, and the only person . As I said, this was a public company and its shareholders could invest as they wished.

Why did I invest in TwoFish? TwoFish was born out of my frustration of dealing with online casinos on a daily basis. I felt that they were too slow, their terms and conditions were too difficult to understand, their customer support was sub-par and their customer experience was unacceptable. And as I was doing this for free, I felt I was entitled to some sort of compensation for my time and efforts.

At the time, there was very little competition in the industry and TwoFish was the only other company I knew of that provided a good alternative to the online casinos. I decided that I needed to invest in TwoFish to compete with them.

The only problem was that I couldn't afford to invest. As a self-funded entrepreneur, I could not afford to sink any money into TwoFish. I only had enough money to make the minimum payment on my credit card each month.

Luckily for me, TwoFish was a public company and its shareholders could invest as they wished. As an investor, I was happy to put my money where my mouth is and I invested a sum equivalent to my monthly credit card payments. In return for my investment, I expected to receive dividends.

How much did I invest? I think the best way to describe how much I invested in TwoFish is to provide a financial breakdown of my TwoFish investment. I paid 10,000 to become a shareholder of TwoFish. This came from my savings and I had no debt. I believe it is fair to say that I was a very early investor in TwoFish and I was able to save up the money to invest in it.

Now, I should also say that I was very much a passive investor in TwoFish. I only put money in when I wanted to and I only took money out when I wanted to.