Rainbow tables are not usable

Rainbow tables are not usable - why

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Reference no: EM132091623

Password hashes can be reversed using Rainbow Tables. Suppose a file (English text) is encrypted using a password, using the following scheme:

The password is hashed, and the hash is used to encrypt the file via AES. The cipher is stores, the password and the hash are thrown away. Explain:

1. Dictionary attacks can be used to recover the password(how?)

2. Rainbow tables are not usable - why?

3. Rainbow tables can be used, if the file has a known standard header(how?)

Reference no: EM132091623

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