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321Program32.docx
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I need some help with homework due on Monday by midnight
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<!DOCTYPE html PUBLIC "-//ABISOURCE//DTD XHTML plus AWML 2.2//EN" "http://www.abisource.com/2004/xhtml-awml/xhtml-awml.mod"><div> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:awml="http://www.abisource.com/2004/xhtml-awml/"> <head> <meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" /> <title> Abiword HTML Document </title> </head> <body> <p awml:style="header"> CS 1450Program 3Spring 2017 </p> </body> <div> <p> In Bitcoin, a value called a Nonce is used to secure a block in the blockchain. The Nonce is a value which when hashed with the overall hash of the block produces a value with 61 leading zeroes (in binary). Recall that the Bitcoin hash is SHA256 which is a 256-bit binary value. </p> <p> </p> <p> For this program, compute the hash of the string “ABCDEFGHIJ” and find the nonce such that the 32-bit hash value has eight leading zeroes. In hex, this would be 0x00_ _ _ _ _ _. Use the hashCode(int, int) method from Program 2. You must find the nonce via trial and error. The hashCode method is weak from a cryptographic viewpoint, and so an analytical solution is possible. Do not do an analytical solution. </p> <p> </p> <p> Here’s what your output should look like: </p> <p> <img style="width:62.2mm; height:11.6mm" src="321Program32.docx.txt_files/rId6.png" title="" alt="" align="" /> <a name="_GoBack"> </a> </p> <p> </p> <p> </p> <p> Name your project HW3_<your Name>.java, e.g., HW3_glock.java. Post your java file only to Blackboard. </p> <p> </p> <p awml:style="header"> </p> </div> </html> </div> ">
