Mortgage Payoff Date Calculator: When Will You Be Debt Free
How long until my mortgage is paid off? When’s it going to be over? This is the question all homeowners ask themselves at some point. … Read More
JSCalc
Mortgage Total Interest Calculator – Lifetime Loan Cost
It seems like a doable number. Your lender approves it because it works. It also fit into your budget. But what the monthly payment doesn’t … Read More
Encryption Key Bit Strength Calculator – NIST Equivalence
Use the Encryption Key Bit Strength Calculator to compare your crypto keys and see what all those bits mean. Sometimes when looking at a configuration … Read More
Keyspace Size Calculator: K = R^L Possible Keys and Bits
It’s a single clean question: How many unique passwords or keys are possible using a certain design? That’s the keyspace, the answer to that question, … Read More
Hash Collision Probability Calculator – Birthday Paradox Odds
Intuition might tell you that hashing one billion records with SHA-256 is fine, there’s just too many different possible outputs for it to go wrong. … Read More
Brute Force Time Estimator – Password Crack Time Calculator
Password strength is length times complexity. That’s what you think, anyway. You think that swapping an ‘a’ for a ‘4’ makes your password secure or … Read More
Password Strength Entropy Calculator – Bits and Crack Time
Every time some site warns me that my password is weak because it doesn’t have a symbol in it, I’m pissed off, and I know … Read More
Entropy of a String Calculator – Shannon Bits per Character
For example, you’d think that a lengthy password must be safe… but according to concept of entropy, it isn’t. If all 12 characters is the … Read More
Hamming Distance Calculator: Compare Two Words Bit by Bit
If we have two equal-length words, then the Hamming distance is a measure of their position differences. Sounds like a basic high-school math problem. But … Read More
Checksum Calculator: Sum, XOR & Internet Ones-Complement
You might say, “I am sending this packet across the network” or “I am sending this firmware update across this microcontroller,” hoping it arrives. “I … Read More