megabit

One million bits, exactly. It is the unit domestic and business internet connections are sold in — a "100 Mbit" line moves 100 million bits per second, which is about 12.5 megabytes.

Watch out: Internet plans are advertised in megabits and download managers report megabytes, so the number you were sold looks eight times bigger than the number you see. Both are honest; they are different units.

One megabit in every information unit

• Password Entropy (Uniform Random Generation)
• Passphrase Entropy (Diceware and Word Lists)
• Average Brute-Force Time
• Hash Collision Resistance (Birthday Bound)
• Truncated Hash Strength
• Elliptic Curve Security Strength

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