Suppose that you have a message consisting of 1024 bits. design a method that will extend a key that is 64 bits long into a string of 1024 bits, so that the resulting 1024 bits can be xored with the message, just like a one-time pad. is the resulting cipher as secure as a one-time pad? is it possible for any such cipher to be as secure as a one-time pad? 21. design

The law firm of furlan and benson accumulates costs associated with individual cases, using a job order cost system. the following transactions occurred during july: jul. 3 charged 175 hours of professional (lawyer) time to the obsidian co. breech of contract suit to prepare for the trial, at a rate of $150 per hour. 10 reimbursed travel costs to employees for depositions related to the obsidian case, $12,500. 14 charged 260 hours of professional time for the obsidian trial at a rate of $185 per hour. 18 received invoice from consultants wadsley and harden for $30,000 for expert testimony related to the obsidian trial. 27 applied office overhead at a rate of $62 per professional hour charged to the obsidian case. 31 paid administrative and support salaries of $28,500 for the month. 31 used office supplies for the month, $4,000. 31 paid professional salaries of $74,350 for the month. 31 billed obsidian $172,500 for successful defense of the case. required: a. provide the journal entries for each of these transactions. refer to the chart of accounts for exact wording of account titles. b. how much office overhead is over- or underapplied? c. determine the gross profit on the obsidian case, assuming that over- or underapplied office overhead is closed monthly to cost of services.