Elliptic Curve Cryptography, or ECC, is public-key cryptography that uses the properties of an elliptic curve over a finite field for encryption. ECC requires smaller keys than non-ECC cryptography to provide equivalent security. For example, a 256-bit ECC public key...
What is Blockchain? Blockchain is a distributed database that maintains a continuously growing list of data records that cannot be tampered with. It was the main technical innovation behind Bitcoin, and it is used as a public ledger of all transactions made with...
Every time we swipe our credit cards in a point-of-sale device, our credit card number is read. And we undoubtedly need to encrypt it to maintain security. Format Preserving Encryption, or FPE, is an encryption technology in which the format of the ciphertext output...
PGP is a widely known software program using which one can sign, encrypt, and decrypt documents, texts, or emails. It can even be used to encrypt a whole disk. But, we often see the terms PGP, OpenPGP, and GnuPG. Are they the same, or are they different? What is the...
SMTP, or Simple Mail Transfer Protocol, was first developed in 1982. At that time, it had very few security features. As a result, we gradually needed to make email communications more secure. We wanted features to digitally sign, encrypt, and decrypt emails. S/MIME...
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