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Results tagged with cbc-mac
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user 21765
Cipher Block Chaining MAC (CBC-MAC) is a method of building a message authentication code from a block-cipher.
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CBC-MAC: is it secure to authenticate a fixed length ciphertext?
Suppose I have a fixed-length arbitrary ciphertext.
To authenticate such ciphertext:
I generate a random AES Key $K_{auth}$.
Then I compute the CBC-MAC Tag of the ciphertext with $K_{auth}$.
Finall …
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