-- /css/** = anon /images/** = anon /js/**...org.apache.shiro.crypto.RandomNumberGenerator; import org.apache.shiro.crypto.SecureRandomNumberGenerator; import org.apache.shiro.crypto.hash.SimpleHash...return */ public static String createCredentials(String credentials, String salt) { SimpleHash...simpleHash = new SimpleHash(hashAlgorithmName, credentials, salt, hashIterations);...simpleHash.toHex() : simpleHash.toBase64(); } /** * 进行密码验证 * * @param credentials
[] func = new SimpleHash[seeds.length]; /** * 设置布隆过滤器所对应k个哈希函数 */ public SimpleBloomFilter...() { for (int i = 0; i < seeds.length; i++) { func[i] = new SimpleHash(DEFAULT_SIZE..., seeds[i]); } } /** * 内部类SimpleHash函数 */ public static class SimpleHash...seed; /** * 默认构造器,哈希表长默认为DEFAULT_SIZE大小,此哈希函数的种子为seed */ public SimpleHash...boolean ret = true; //根据此URL得到在布隆过滤器中的对应位,并判断其标志位(k个不同的哈希函数产生k种不同的映射) for (SimpleHash
11, 13, 31, 37, 61};//这里要选取质数,能很好的降低错误率 private BitSet bits = new BitSet(DEFAULT_SIZE); private SimpleHash...[] func = new SimpleHash[seeds.length]; public Bloomfilter() { for (int i = 0; i < seeds.length...; i++) { func[i] = new SimpleHash(DEFAULT_SIZE, seeds[i]); } } private void addValue(String...value) { for(SimpleHash f : func)//将字符串value哈希为8个或多个整数,然后在这些整数的bit上变为1 bits.set(f.hash(value),...{//这玩意相当于C++中的结构体 private int cap; private int seed; public SimpleHash(int cap, int seed) { this.cap
Md5Hash("yby6", "it6666", 2); System.out.println(md5Hash);}Md5Hash的几个参数主要是:第一个:需要加密的信息第二个:盐第三个:散列次数SimpleHash...@Testpublic void encryption() { SimpleHash simpleHash = new SimpleHash("md5", "yby6", "it6666", 2)...; System.out.println(simpleHash);}SimpleHash的几个参数主要是:第一个:算法名称第二个:需要加密的信息第三个:盐第四个:散列次数最后本期结束咱们下次再见~
org.apache.shiro.crypto.RandomNumberGenerator; import org.apache.shiro.crypto.SecureRandomNumberGenerator; import org.apache.shiro.crypto.hash.SimpleHash...密码加盐 authAdmin.setSalt(randomNumberGenerator.nextBytes().toHex()); String newPassword = new SimpleHash.../ 密码加盐 admin.setSalt(randomNumberGenerator.nextBytes().toHex()); String newPassword = new SimpleHash...密码加盐 authAdmin.setSalt(randomNumberGenerator.nextBytes().toHex()); String newPassword = new SimpleHash.../ 密码加盐 admin.setSalt(randomNumberGenerator.nextBytes().toHex()); String newPassword = new SimpleHash
这里我们直接使用我之前所写文章 布隆过滤器你值得拥有的开发利器 中定义的 SimpleHash 类,然后分别对 semlinker、kakuqo 和 test 3 个键进行哈希运算并取余,具体代码如下:...public class SimpleHash { private int cap; private int seed; public SimpleHash(int cap,...simpleHash = new SimpleHash(2 << 12, 8); System.out.println("node_number=hash(\"semlinker\")...% 3 -> " + simpleHash.hash("semlinker") % 3); System.out.println("node_number=hash...Hashing)原理剖析及Java实现 Codeproject - consistent-hashing 欢迎小伙伴们订阅前端全栈修仙之路,及时阅读 Angular、TypeScript、Node.js
,"salt",3); System.out.println("md5 带盐三次加密:"+md5Hash3.toHex()); // 使用父类实现加密 SimpleHash...simpleHash = new SimpleHash("MD5",password,"salt",3); System.out.println("父类带盐三次加密:"+simpleHash.toHex
import org.apache.shiro.crypto.hash.SimpleHash; import org.apache.shiro.util.ByteSource; import org.junit.Test...//密码 Object source = password; //加密次数 int hashIterations = 10; SimpleHash...result = new SimpleHash(hashAlgorithmName, source, byteSalt, hashIterations); return result.toString
位数组,数组中的元素只能是 0 或者 1 private BitSet bits = new BitSet(DEFAULT_SIZE); // hash函数 private SimpleHash...[] func = new SimpleHash[SEEDS.length]; public MyBloomFilter() { for (int i = 0; i < SEEDS.length...; i++) { func[i] = new SimpleHash(DEFAULT_SIZE, SEEDS[i]); } } // 添加元素到位数组...public void add(Object value) { for (SimpleHash f : func) { bits.set(f.hash(...{ private int cap; private int seed; public SimpleHash(int cap, int seed)
function HashTable() { this.table = new Array(137); this.simpleHash = simpleHash; this.showDistro...这种散列方式称为除留余数法 function simpleHash(data) { var total = 0; for (var i = 0; i < data.length; ++i) {...{ return this.table[this.betterHash(key)]; } // 用来将数据存入散列表 function put(data) { var pos = this.simpleHash
bitset */ private BitSet bits = new BitSet(DEFAULT_SIZE); /* 哈希函数对象用于判断元素是否存在于表中 */ private SimpleHash...[] func = new SimpleHash[seeds.length]; //构造函数 public BloomFilter() { for (int i = 0...; i < seeds.length; i++) { func[i] = new SimpleHash(DEFAULT_SIZE, seeds[i]); }...} // 将字符串标记到bits中 public void add(String value) { for (SimpleHash f : func) {...为hash函数的容量 private int cap; //不同hash函数的种子 private int seed; public SimpleHash
输入key,输出hash后的整数 * @param $key * @return int */ private function simpleHash($key){...param $value * @return bool */ public function set($key, $value){ $hash = $this->simpleHash...* @param $key * @return mixed */ public function get($key){ $hash = $this->simpleHash...return $asciiTotal % $this->size; } public function set($key, $value){ $hash = $this->simpleHash...$hash] = $newNode; return true; } public function get($key){ $hash = $this->simpleHash
]{5, 7, 11 , 13 , 31 , 37 , 61}; private BitSet bits = new BitSet(DEFAULT_SIZE); private SimpleHash...[] func = new SimpleHash[seeds.length]; public static void main(String[] args) { String...SimpleBloomFilter() { for( int i= 0 ; i < seeds.length; i ++ ) { func[i] = new SimpleHash...(DEFAULT_SIZE, seeds[i]); } } public void add(String value) { for(SimpleHash...{ private int cap; private int seed; public SimpleHash(int cap, int seed)
private BitSet bits = new BitSet(DEFAULT_SIZE); /** * 存放包含 hash 函数的类的数组 */ private SimpleHash...[] func = new SimpleHash[SEEDS.length]; /** * 初始化多个包含 hash 函数的类的数组,每个类中的 hash 函数都不一样 *...; } } /** * 添加元素到位数组 */ public void add(Object value) { for (SimpleHash...*/ public static class SimpleHash { private int cap; private int seed;...public SimpleHash(int cap, int seed) { this.cap = cap; this.seed = seed;
[] func =new SimpleHash[seeds.length]; public BloomFilter() { for (int i =0; i < seeds.length; i++) {...func[i] =new SimpleHash(DEFAULT_SIZE, seeds[i]); } } // 将字符串标记到bits中 publicvoid add(String value) {...for (SimpleHash f : func) { bits.set(f.hash(value), true); } } //判断字符串是否已经被bits标记 publicboolean contains...(String value) { if (value ==null) { returnfalse; } boolean ret =true; for (SimpleHash f : func) { ret...= ret && bits.get(f.hash(value)); } return ret; } /* 哈希函数类 */ publicstaticclass SimpleHash { privateint
org.apache.shiro.crypto.RandomNumberGenerator; import org.apache.shiro.crypto.SecureRandomNumberGenerator; import org.apache.shiro.crypto.hash.SimpleHash...SecureRandomNumberGenerator(); String salt = randomNumberGenerator.nextBytes().toHex(); String newPassword = new SimpleHash
61,}; // bit 数组 private BitSet bits = new BitSet(DEFAULT_SIZE); // 存放哈希函数的数组 private SimpleHash...[] func = new SimpleHash[seeds.length]; public static void main(String[] args) { SimpleBloomFilterTest...SimpleBloomFilterTest() { for (int i = 0; i < seeds.length; i++) { func[i] = new SimpleHash.../** * 向布隆过滤器添加元素 * @param value */ public void add(String value) { for (SimpleHash...{ private int cap; private int seed; public SimpleHash(int cap, int seed) {
};//这里要选取质数,能很好的降低错误率 private static BitSet bits = new BitSet(DEFAULT_SIZE); private static SimpleHash...[] func = new SimpleHash[seeds.length]; public static void addValue(String value) {...for(SimpleHash f : func)//将字符串value哈希为8个或多个整数,然后在这些整数的bit上变为1 bits.set(f.hash(value),true...String value) { if(value == null) return false; boolean ret = true; for(SimpleHash...{//这玩意相当于C++中的结构体 private int cap; private int seed; public SimpleHash(int cap, int seed
final int[] SEEDS = new int[]{3, 13, 46}; /** * 存放包含 hash 函数的类的数组 */ private SimpleHash...[] func = new SimpleHash[SEEDS.length]; /** * 初始化多个包含 hash 函数的类的数组,每个类中的 hash 函数都不一样 *...*/ public static class SimpleHash { private int cap; private int seed;...public SimpleHash(int cap, int seed) { this.cap = cap; this.seed = seed;...具体代码如下: /** * 添加元素到位数组 */ public void add(Object value) { for (SimpleHash f :
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