almodawan

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visits member for 1 year, 8 months
seen Feb 4 '13 at 16:51

Nov
16
awarded  Popular Question
Feb
1
comment How do I derive the time complexity of encryption and decryption based on modular arithmetic?
Thank you for all. but I have wondered simple in last algorithm MP = C * k^-1 mod N. I can say D = k ^ -1 mod N// here complexity equal O(n^2) and MP = D * C mod N // here complexity is O(n^2). Then Total time is O(n^2)+O(n^2)=O(2 n^2) = O(n^2)............Just to make sure
Feb
1
comment How do I derive the time complexity of encryption and decryption based on modular arithmetic?
Thank you for all.
Jan
29
comment How do I derive the time complexity of encryption and decryption based on modular arithmetic?
Mr Thomas you mean log N not log n where n number of bits in N .
Jan
29
revised How do I derive the time complexity of encryption and decryption based on modular arithmetic?
added 288 characters in body
Jan
29
revised How do I derive the time complexity of encryption and decryption based on modular arithmetic?
added 288 characters in body
Jan
29
asked How do I derive the time complexity of encryption and decryption based on modular arithmetic?
Jan
26
comment What is a block cipher?
Thanks a lot MrOleksi. on this clarification is useful.Just have a simple question when the data size is less than 256-bit how to deal with it.
Jan
26
comment What is a block cipher?
Thank you Mr Oleksi for your response. If I have data length of 512 bit and I have a 256-bit key length and encryption result rather (plain text) is 256 bit after decrypt process. I able to encrypt data has max length 256 bits. I can say that the length of block cipher is 256 bits. Because should be divide 512 bit to two chunk Each chunk has 256 bits. If that is true I am hope. please response me.
Jan
24
comment What is a block cipher?
Can I say DES cryptography algorithm type of block cipher.
Jan
24
comment What is a block cipher?
thank you for your response. Can I say RSA algorithm type of block cipher
Jan
24
asked What is a block cipher?
Jan
23
awarded  Editor
Jan
22
comment How can I calculate the time complexity of modular arithmetic?
Can I say that a . b mod n is takes less time from a^-1 . b mod n. If That's true I'm very hope.
Jan
22
awarded  Commentator
Jan
22
comment How compared encryption algorithm in terms of efficiency
thank you mr Thomas .BUT WHAT IS IMHO. If Can you give me link to read about IMHO. THANK YOU AGAIN Mr THOMAS.
Jan
21
comment How can I calculate the time complexity of modular arithmetic?
Thank you for your answer. In my thesis I have two algorithm first encrypt and second decrypt. I want know best in time complexity. Is it encrypt or decrypt? Is it good method for compare? or tell me any other way for compared
Jan
21
comment How compared encryption algorithm in terms of efficiency
Is there general way to calculate speed performance for encrypt and decrypt.to be able to compare between any two algorithms in terms of speed? I need that for my thesis.
Jan
21
comment How compared encryption algorithm in terms of efficiency
Compute time it isn't good measured. because give me time variable each runtime program. I want know. Is calculate Time Complexity good measured. I want link for any book to learn me. Thanks for all.
Jan
21
asked How compared encryption algorithm in terms of efficiency