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A CA is supposed to make sure that the certificates it issues contain only truthful information. How they do that is their business; serious CA are supposed to publish detailed "Certification Practice Statements" that document their procedures. In practice, when you want to buy a certificate for a domain, the CA "challenges" you, so that you demonstrate that you indeed have control of that domain.
A CA is supposed to make sure that the certificates it issues contain only truthful information. How they do that is their business; serious CA are supposed to publish detailed "Certification Practice Statements" that document their procedures. In practice, when you want to buy a certificate for a domain, the CA "challenges" you, so that you demonstrate that you indeed have control of that domain.
By itself, your home-brew algorithm is a form of security through obscurity. However, when applied in combination with a known good encryption, your home-brew algorithm may be considered a defense in depth strategy.
As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.