Lab Exercise Lab #2 Lynn Burgess

The National Security Agency of the United States developed the SHA1 hashing algorithm. What are the potential downsides of its use?

1) Digital forensics: Suppose that we a record but not sure which one is the original one and which one has been modified: A) Bob leaves the hotel at 7:00 pm B) Bob leaves the hotel at 6:00 pm Fortunately, we have the hash value of the original record, calculated by SHA-256: 2655a8151189efae706db96460d368ab6adb9f5a1b88e5aa5c6ea18ba65beadd Please tell which one is the original one, A or B?

In a well organized essay, not a series of bullets, explain what "hashing" is.  What is it used for?  What makes it particularly attractive.  In your essay be sure to indicate the order of magnitude required to store or to search for data using hashing.

The SHA1 hashing algorithm was developed by the United States' National Security Agency. Were you wondering why you should try to avoid using it at all costs?

Digital forensics: Suppose that we a record but not sure which one is the original one and which one has been modified: A) Bob leaves the hotel at 7:00 pm B) Bob leaves the hotel at 6:00 pm Fortunately, we have the hash value of the original record, calculated by SHA-256: 2655a8151189efae706db96460d368ab6adb9f5a1b88e5aa5c6ea18ba65beadd Please tell us which one is the original one, A or B?  (Hint: You can use the SHA-256 calculator at https://xorbin.com/tools/sha256-hash-calculator).

Data structures and algorithms

Hi, please answer this correctky and completely. Thanks! The subject is Data Structure and Algorithm. Hash and Collission

Construct a hash table for storing and retrieving data related to the residents of Oman. The civil number of residents stored using Folding Hashing. Assume that the array size is 10 and the civil numbers are 12038811, 31018131, 04117643, 12345679, 12345672. Find the Key value for each civil number after applying folding and division hashing. Attach File Browse My Computer

What are the advantage of hash over checksum.

Construct a hash table for storing and retrieving data related to the residents of Oman. The civil number of residents stored using Folding Hashing. Assume that the array size is 10 and the civil numbers are 12038811, 31018131, 04117643, 12345679, 12345672. Find the Key value for each civil number after applying folding each digit and division hashing.

Create a thorough note on Hashing. (Hashing, hash table, collision, collision detection algorithms, time complexity, and hashing applications). Describe in detail one application of hashing. Do you know of any Java libraries that can be used for this purpose?