RSA-OAEP is a symmetric encryption scheme based on RSA and the Optimal Asymmetric Encryption Padding (OAEP) method.

Decreasing the key size of a cipher is useful to make an exhaustive key search harder.

An ambulance is generating a siren sound at a frequency of 2,000 Hz. The speed of sound is 345.0 m/s. The observer and the ambulance are traveling toward each other at a velocity of 24.00 m/s. If the observer is stationary, what is the frequency of the siren perceived by the observer?

A combination of an encryption algorithm and a decryption algorithm is called a key.

What is the remainder when 98 is divided by 9?

Which of the following statements is/are true about Data Encryption Standard (DES)? (Select all that apply.)

What is a result of 32 mod 5?

A rod is 2.40 m long and has a diameter of 2.50 mm. A force of 2000 N is applied to the end, stretching the rod by 1.40 mm. What is the elastic modulus for this rod?

Two point charges are on the x-axis. One charge, q1 = 10.0 nC, is located at the origin, and the other charge, q2 = 18.0 nC, is located at x = 9.00 m. What is the force on q2? (Note: nC = x 10-9 C;  nN = x 10-9 N:  pN = x 10-12 N)

For MD5, finding short colliding messages is feasible.