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A comment on The Cryptographic Doom Principle. Parent comment

Re:The Cryptographic Doom Principle by madez on Tuesday April 14, 2015 @01:51PM (#9376034)
Read this thread.

CC is a bijective function on (blocksize of KC) bits.

CC knows nothing at all about KC.

Implementation can be done in another computer without security problem while you get obscurity.

Read this thread.

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Re:The Cryptographic Doom Principle by angry_octet on Tuesday April 14, 2015 @02:05PM (#9376143)
You don't mention separate computers until now. It's a big difference. I thought we were discussing implementing crypto, not some theoretical properties you achieve when conditions are just right.

I'm not saying trust the Windows implementation of AES, you can put it through some other cipher with a strong implementation as well, but don't just make up your own one.

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