How Are the Three Digits on the Back of Your Credit Card Computed?
The three digits that are printed on the back of a credit or debit card are computed by an algorithm which uses the 2-key Triple DES (Data Encryption Standar...
Recent Posts
Why the 3 Digits on the Back of Your Credit or Debit Card Matter
The three digits on the back of a credit/debit card (CVV2, which I will refer to as CVV), provide some assurance to a merchant and bank/card issuer that a gi...
The Relationship Between Cryptography and Cryptocurrencies
Cryptography and cryptocurrencies are very closely related; cryptography is used in the majority of cryptocurrencies to both control the creation of the curr...