What type of algorithm uses a mathematical transformation to convert a message into a fixed length data value that is unique to the corresponding source?

Science
Computer Science
Computer Security and Reliability

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What are the 3 main types of cryptographic algorithms?
Which type of cryptographic algorithm uses a single key to encrypt and decrypt messages?
Which algorithm is used in cryptography?
What is symmetric and asymmetric algorithm?

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COMPUTER SCIENCE

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COMPUTER SCIENCE

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COMPUTER SCIENCE

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COMPUTER SCIENCE

We are given a color picture consisting of an m × n array A[1..m, 1..n] of pixels, where each pixel specifies a triple of red, green, and blue (RGB) intensities. Suppose that we wish to compress this picture slightly. Specifically, we wish to remove one pixel from each of the m rows, so that the whole picture becomes one pixel narrower. To avoid disturbing visual effects, however, we require that the pixels removed in two adjacent rows be in the same or adjacent columns; the pixels removed form a “seam” from the top row to the bottom row where successive pixels in the seam are adjacent vertically or diagonally. a. Show that the number of such possible seams grows at least exponentially in m, assuming that n > 1. b. Suppose now that along with each pixel A[i, j], we have calculated a real-valued disruption measure d[i, j], indicating how disruptive it would be to remove pixel A[i, j]. Intuitively, the lower a pixel’s disruption measure, the more similar the pixel is to its neighbors. Suppose further that we define the disruption measure of a seam to be the sum of the disruption measures of its pixels. Give an algorithm to find a seam with the lowest disruption measure. How efficient is your algorithm?

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What are the 3 main types of cryptographic algorithms?

There are three general classes of NIST-approved cryptographic algorithms, which are defined by the number or types of cryptographic keys that are used with each..

Hash functions..

Symmetric-key algorithms..

Asymmetric-key algorithms..

Hash Functions..

Symmetric-Key Algorithms for Encryption and Decryption..

Which type of cryptographic algorithm uses a single key to encrypt and decrypt messages?

Difference Between Symmetric and Asymmetric Encryption.

Which algorithm is used in cryptography?

AES. The Advanced Encryption Standard (AES) is the algorithm trusted as the standard by the U.S. Government and numerous organizations. Although it is highly efficient in 128-bit form, AES also uses keys of 192 and 256 bits for heavy-duty encryption purposes.

What is symmetric and asymmetric algorithm?

The basic difference between these two types of encryption is that symmetric encryption uses one key for both encryption and decryption, and the asymmetric encryption uses public key for encryption and a private key for decryption.