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Yes, it is because it will use DES (CBC) mode of operation. DES only has an effective key size of 56 bits. Attacks on DES are able to shave a few bits off of that. So the key and the can be brute forced regardless of the (PBKDF1) key derivation. MD5, while considered broken by itself, is less of an issue when it is used within PBKDF1 - as long as the ...


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For a definitive answer, you really should see the documentation for the data format you're dealing with, but just quickly looking at the XML response, it would seem that you're dealing with a hybrid encryption scheme. That is, your encrypted message consists of two parts: The actual data (in xenc:EncryptedData), encrypted using AES-CBC with a single-use ...



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