MIRE
发表于 2025-3-23 11:23:55
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ARY
发表于 2025-3-23 17:00:05
Conclusions & Future Directions,In this chapter we show how public key cryptosystems can be used to create “digital” signatures.
crockery
发表于 2025-3-23 19:32:34
Location Methods and Impairments,The Vernam cipher of Section . is the only cryptosystem that has perfect secrecy (Definition .), because the key is a random sequence of bits of the same length as the message (Proposition .).
lethargy
发表于 2025-3-23 22:32:44
Conclusions & Future Directions,AES and other symmetric key cryptosystems are in wide use because they transmit data much faster than public key cryptosystems (e.g., RSA), but they need a shared secret key. Moreover, the Blum–Micali and Blum–Blum–Shub bit generators require both Alice and Bob to share an initial key consisting of a finite string of random bits.
现存
发表于 2025-3-24 06:19:52
Conclusions & Future Directions,The Diffie–Hellman protocol uses the group . to exchange keys. Other groups can be employed in a Diffie–Hellman-type protocol. For instance, we could use an elliptic curve group.
right-atrium
发表于 2025-3-24 10:25:26
Location Methods and Impairments,Let . be a field not of characteristic 2. Let .. denote the multiplicative group of non-zero elements of ..
一再遛
发表于 2025-3-24 12:11:34
Information Theory and Entropy,Let . be a fixed probability space. Let . = {.., .., .., …, ..} be a finite set, and let . : Ω → . be a random variable with distribution function .. : . → , ..
喊叫
发表于 2025-3-24 18:30:25
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FACT
发表于 2025-3-24 19:23:58
Algebraic Foundations: Groups,Algebraic concepts such as groups, rings, and fields are essential for the study of symmetric key and public key cryptography.
Visual-Acuity
发表于 2025-3-25 02:11:03
Algebraic Foundations: Rings and Fields,In contrast to a group, a ring is a set together with two binary operations.