[botan-devel] Block Size of AES-128?

Eugene N neverov.biks.07.1 at gmail.com
Mon Mar 7 05:27:23 EST 2011


Hello

For God's sake try reading about crypto first!

B. Shneier - Practical Crypto (or earlier Applied Crypto) book would do.

How can you develop crypto-app  without understanding the basics??

Eugene

2011/3/6 <larry_lindstrom at comcast.net>

> Hello Folks:
>
>    Developing 32 bit app on Windows 7 Ultra 64, VS 2010 Pro, Botan 1.9.14.
>
>
>    Jack, thanks for your swift reply to my last question, and thanks again
> for Botan.
>
>    I'm puzzled by the values generated with these statements:
>
>         int block_size_128 = Botan::block_size_of("AES-128");
>         int block_size_256 = Botan::block_size_of("AES-256");
>
>    The values for both variables is 16.
>
>    I'm probably the most ignorant person, on the subjects of math of
> cryptology, who posts here.  Shouldn't the block size of AES-128 be 32?
>
>    Or am I confused.
>
>               Thanks
>               Larry
>
>
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