main.java

来自「提供JAVA源码」· Java 代码 · 共 45 行

/*
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package sha1lab;

/**
 *
 * @author Fredrik
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // Hash the test messages in the SHA-1 standard document
        String message="abc";
        byte[] messageByte=message.getBytes();
        for(int i=0;i<messageByte.length;i++)
            System.out.printf("%02x ",messageByte[i]);
        System.out.println();
        SHA1 hashFunction = new SHA1();
        byte[] hashVal=hashFunction.hash(messageByte);
        for(int i=0;i<20;i++)
            System.out.printf("%02x ",hashVal[i]);
        System.out.println();
        message="abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
        messageByte=message.getBytes();
        hashVal=hashFunction.hash(messageByte);
        for(int i=0;i<20;i++)
            System.out.printf("%02x ",hashVal[i]);
        System.out.println();
        messageByte=new byte[1000000];
        for(int i=0;i<1000000;i++)
            messageByte[i]="a".getBytes()[0];
        hashVal=hashFunction.hash(messageByte);
        for(int i=0;i<20;i++)
            System.out.printf("%02x ",hashVal[i]);
        System.out.println();
        
    }

}