La cryptographie vise à sécuriser des informations et à les dissimuler aux yeux des tiers via le chiffrement. Bien que cette méthode existe sous une certaine forme depuis des millénaires, l’impact de la cryptographie moderne dans la sécurité des informations est plus récent. Dans cet article, nous expliquons en quoi consiste la cryptographie, son importance…
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Le tue e-mail e i tuoi messaggi sono protetti da crittografia? Se sì, è probabile che lo siano grazie alla crittografia asimmetrica con l’obiettivo di salvaguardare i tuoi dati sensibili da accessi non autorizzati. Vediamo, quindi, che cos’è questa tecnica di crittografia assieme ai suoi vantaggi e agli svantaggi rispetto alla crittografia simmetrica. Che cos’è…
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Rivest-Shamir-Adleman (RSA) -salaus on yksi vanhimmista julkisen avaimen salakirjoitusjärjestelmistä, mutta sitä käytetään laajasti nykyäänkin. RSA-salakirjoitusjärjestelmää käytetään monissa yhteyksissä, aina VPN-yhteyden luomisesta sähköpostien salaamiseen. Mutta miten RSA-salaus toimii, ja onko algoritmi todella turvallinen? Näihin kysymyksiin perehdytään alla yksityiskohtaisesti. RSA-salauksen määritelmä RSA on julkisen avaimen salakirjoitusjärjestelmä, jota käytetään turvallisten yhteyksien ja digitaalisten allekirjoitusten luomiseen. RSA-salauksen nimi perustuu…
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Steganography is a word for the old art of hiding secrets in plain sight. As communication has changed, so have the methods for hiding it. Discover the tool used by spies, government agencies, and other mysterious individuals. What is steganography? Steganography is a centuries-old tradition. In the past, people wrote their secret messages in invisible…
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Cryptography is the process of securing and hiding information from unauthorized parties. While it has existed in some form for thousands of years, modern cryptography only became an integral part of everyday information security over the last few decades. So, what is cryptographic technology, how does it work, and why is it important? Read on…
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Block and stream ciphers are the two main types of symmetric key algorithms. Both ciphers use the same cryptographic key to encrypt and decrypt data, but that’s where their similarity ends. Find out how block and stream ciphers work, how they defer, and the best contexts to use them. Contents What is a block cipher?…
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Elliptic curve cryptography is a modern asymmetric cryptographic approach. ECC’s security and efficiency make it an excellent option for encrypting digital communications and creating digital signatures. In this article, we’ll discuss how elliptic curve cryptography works, whether it’s secure, and its real-life applications and benefits. Contents What is elliptic curve cryptography (ECC)? What are elliptic…
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The Enigma machine was a device that created encoded messages, specifically to protect wartime communications. Its creation was a result of wartime necessity, because the Germans had already created a powerful machine to protect their secrets. The Allies needed to catch up with something of their own. In creating the Enigma machine, the Allies helped…
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