Tagged Questions
1
vote
1answer
51 views
Counter Mode: static IV but different keys [duplicate]
Given we are using AES counter mode, suppose we randomly generate several keys, all of them are using same IV (say, zeros). Does this lead to any security issue?
I know that in CTR mode, same key-iv ...
1
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1answer
98 views
Proper uses for CTR and CBC AES block cipher modes
Assuming the following:
Key is randomly generated is being used (32 bytes+)
IV is also randomly generated
Crypto random key generator is used
Data being encrypted contains common bytes like ...
1
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2answers
161 views
AES+CTR+HMAC Encryption and Authentication on an Arduino
In my project we would like to encrypt and authenticate the the communication channel between our server and our Arduino nodes, which relies on an underlying TCP channel.
We have chosen AES in CTR ...
1
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1answer
223 views
AES CBC mode or AES CTR mode recommended?
what's benefits and disadvantages of CBC vs CTR ? which one is more secure ?
0
votes
1answer
740 views
Counter Mode in Advanced Encryption Standard(AES) Algorithm
In Advanced Encryption Standard, If I used "Counter Mode", in it's nonce value, what should I do?
ex. should I divide the nonce value into two? ex. I have 128-bit of nonce, should I divide it from ...
4
votes
2answers
206 views
Is it safe to store initial counter value for AES-CTR alongside with ciphertext?
The initial counter value can actually be thought of as a sort of IV, which I assume is safe to transmit with the ciphertext, but I really want to be sure that this is indeed safe.
