A long variable-length string can be converted into a short fixed-length string by usingGroup of answer choicesa digital time-stamping servicesecret-key encryptionpublic-key encryptiona hashing function
Question
A long variable-length string can be converted into a short fixed-length string by usingGroup of answer choicesa digital time-stamping servicesecret-key encryptionpublic-key encryptiona hashing function
Solution
A long variable-length string can be converted into a short fixed-length string by using a hashing function.
Similar Questions
What is the term for the process of converting data into a fixed-size string of characters, typically for hash code generation?Group of answer choicesSortingHashingEncryptionCompression
Select below the hashing algorithm that takes plaintext of any length and generates a digest 128 bits in length:
One key problem with a long modifier string is that it often slows a reader's comprehension.Group of answer choicesTrueFalse
You are given a string s and an integer k. Encrypt the string using the following algorithm:For each character c in s, replace c with the kth character after c in the string (in a cyclic manner).Return the encrypted string. Example 1:Input: s = "dart", k = 3Output: "tdar"Explanation:For i = 0, the 3rd character after 'd' is 't'.For i = 1, the 3rd character after 'a' is 'd'.For i = 2, the 3rd character after 'r' is 'a'.For i = 3, the 3rd character after 't' is 'r'.Example 2:Input: s = "aaa", k = 1Output: "aaa"Explanation:As all the characters are the same, the encrypted string will also be the same. Constraints:1 <= s.length <= 1001 <= k <= 104s consists only of lowercase English letters.
our encoding and decoding abilities are greatly appreciated by Chhota Bheem. Just as he is about to induct you into his team, he got a call from his friend Perry the Platypus. This is quite alarming, because Perry hardly speaks - a phone call is only in emergency situations.Perry has an important password to crack. Unfortunately, he is on medication now. So, your expertise is expected here. Design a custom encoding scheme that transforms a string into its encoded form. The encoding process involves the following steps:Apply a shift to each character in the message based on the key provided. The shift value for each character is determined by the index (or position number) of the character in the message in English Alphabet multiplied by the corresponding digit in the key.If the shift value exceeds the index of alphabet (26), loop through the alphabet repeatedly.The only special character allowed in the message is a blank space. It has to be encoded by the following rule. The first blank space character has to be encoded as ‘a’. Second blank space character has to be encoded as ‘z’. Then, by ‘b’ and then by ‘y’. This pattern continues for the remaining blank spaces of the input message. If there are more than 26 blank spaces, the encoding pattern is repeated.Same character may be associated with different key values. So they may have different shift values. If the key length is shorter than the message length, loop through the key repeatedly until each character in the message has a corresponding digit for the shift.Handle both uppercase and lowercase letters in the message. Return the encoded message as a string in UPPERCASE. For example, The message is Hardwork never failzKey is 152Encoded string is PFBHHSJNAPJBOJZJCRTZ In the following table, first row corresponds to the input message.Second row mentions the key (Repeated till the end of message). Key value is not assigned to blank space.Third row indicates the position number of each character (of an input message) in an English alphabet. Fourth row indicates the encoded string. (Output).Hardwork never failz15215215 21521 521528118423151811 14522518 6191226PFBHHSJNAPJBOJZJCRTZExplanationIndex of H in English Alphabet is 8. Its key value is 1. So, the shift value is 1*8 = 8. From H, P is available at 8th position. So, the corresponding encoded character of H is P. Similarly, Index of R in English Alphabet is 18. Its key value is 2. So, the shift value is 2*18 = 36. From R, B is available at 36th position. Find the encoded character according to the shift value in a cyclic manner. So, the corresponding encoded character of R is B. This explanation holds valid for the R which has its key value 2. In the input message, other R are also available. But, they have different key values. So, their shift values are different. Input formatRead the input messageRead the key Output formatDisplay the encoded message Sample Input:Hardwork never failz152 Sample Output:PFBHHSJNAPJBOJZJCRTZ
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