Counter Mode (CTR) is an encryption mode, that builds a random-access stream-cipher from a block-cipher.

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AES-CTR with ephemeral keys vs IV

Let's say that we have a key exchange of some sort, which leaves A and B sharing the long-term secret $S$. Then, A and B want to use AES-CTR for the communication, which leaves us with several ...
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What is wrong with AES-CTR-HMAC-SHA256 - or why is it not in TLS?

It seems the only specified CTR mode ciphers in TLS are all GCM based. GCM ciphers run AES-CTR and do authenticated encryption with a MAC based on Galois-field ...
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Decryption returns different data

I am new to cryptography so forgive me if I am doing anything stupid. I am following the Cryptography in JAVA book. I am creating my own kerberos. I am stuck at a point. I have Message class which ...