30: The Expected Heat Death of the Universe
Grinding hard on Run Your Own Mail Server.
Modern DKIM uses 2048-bit keys. With current mathematical understanding, they are not brute-force breakable before the expected heat death of the universe. Modern cryptographic algorithms don’t fall to brute force, however. Mathematicians nibble at them, discovering weak point after weak point until, eventually, someone figures out how to break them in a reasonable time. Computer speed might not be accelerating the way it did a couple decades ago, but processing power is far more accessible than ever. Every year, any definition of “reasonable time”…
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