Dear Indocrypt members Given two elements a, b in a finite field K, what is the criterion for deciding whether there exists r such that b=a^r? Can this be done...
Hello, As far as I know there is no way, unless you know 'a' is a primitive element. If there is a way for finding membership in a subgroup, the discrete log...
... Yes, the case where $a$ is a generator makes everything trivial. ... This is a decision problem and I feel this problem cannot be of any help to discrete...
Hello, ... If we choose the polynomial f(x) to be irreducible but not primitive,the element 'alpha' which is a root of f(x) in the extension field will not be...
Thanks Sarad and Sudarshan. This is indeed a decision problem (DP) and does not explicitly ask for the DL (discrete log in the subgroup). Depending on the...
Hello, ... You appear to assume that b belongs to <a> from the second line of your statement. That is what we need to prove. You are also assuming that the...
Sarad AV <jtrjtrjtr2001@...> wrote: Hello, ... Sarad. You appear to assume that b belongs to <a> from the second line of your statement. That is what we...
http://www.amazon.com/gp/product/0201853930/qid=1129255994/sr=1-4/ref=sr_1_4/103-8830381-2947028?s=books&v=glance&n=283155 please check this link... I don't...
The theme of RSA conference was Aryabhata and -- Modern Codes in Ancient Sutras. http://2006.rsaconference.com/us/conference/theme.aspx I could not find much...
More info here http://math.iisc.ernet.in/~imi/sacc.htm __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the...
Dear All I have some querries on Elliptic Curve Cryptography. Can you help? 1. Why are elliptic curves over rationals E(Q) not used in cryptography? These...
perhaps this is due to the limiatations of representing rational points on an elliptic curve in a finite number of bits.. is there a theorem that proves that...
dear sir, the link that u sent for hashclash is bad. Kindly plz check it and let the group know. Thank you very much Murtaza Masalawala Indian Institute of...
Hi, 1. I'm Ashish Sharma of Army Institute of Technology, Pune, India 2. My paper titled "FastFlex: A New Fast and Flexible Cryptographic Function" has been...
Hi there. I saw ur website. Seems to be some good work. If ur looking out for software companies in Pune dealing in security, the Kodito Security Systems is...
Well, Both Salsa and my function are based on Add-Rotate-Xor structure which has found some mention in literature. And Salsa 20 is not faster. For 20 rounds,...
Dear Mr Sarad, 1. There seems to be a confusion about the number of rounds in FastFlex and in Salsa20. 2. A Salsa20 round is essentially a single iteration of...
Dear Ashsih, ... okay, we know Salsa20(x)=x+ [double round(x) iterated ten times]. Lets try fix our notations. Let 'w' be the word size and 'r' be the number...
Hi, 1. Can anyone help me with calculating the linear and differential branch numbers for the Add-Rotate-Xor structure used in FastFlex or Salsa20 or TEA? 2....
hello i am sorry i donot know what you are saying about this is the first time i am hearing about salsa and fastflex if you donot mind could you tell me what...
Hi, Salsa20 and FastFlex are both Stream Cipher Functions (Although they can be conjectured to have more applications such as hash functions, MACs, etc) Stream...
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