From the course: CISSP Cert Prep (2021): 3 Security Architecture and Engineering

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Elliptic-curve and quantum cryptography

Elliptic-curve and quantum cryptography

From the course: CISSP Cert Prep (2021): 3 Security Architecture and Engineering

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Elliptic-curve and quantum cryptography

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- Let's take a look at two more encryption technologies that are covered on the exam, but they're a little less commonly used. Elliptic curve cryptography and quantum cryptography. All public key cryptography is based upon the difficulty of solving complex mathematical problems. In the case of the RSA algorithm, the security of the algorithm depends upon the difficulty of factoring the product of two large prime numbers. You might recall from a math class that prime numbers are those that are divisible only by themselves and the number one. Common examples of prime numbers include two, three, five, seven and 11. Now if I told you that I was going to multiply two prime numbers together and provide you with the answer, you might think that you'd be able to perform that calculation. For example if I tell you that 15 is the product of two prime numbers, you can easily determine that those numbers are three and five. Or…

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