Java Messagedigest Sha1
【メーカー在庫あり】 ザーレン・コーポレーション(株) マクノート グリスポンプ スーパーリューブ (缶別売) k3 jp,【送料無料】 195/55r16 16インチ inter milano インターミラノ クレール gs10j 6j 6. You're looking for the MessageDigest (import java. Implements the MD4 message digest algorithm in Java: 7. Advanced users who want partial digests should clone their MessageDigest before calling digest. InternalError: java. 字符串的MD5(下面的代码有详细注释). Major tech giants browsers like Microsoft, Google, Apple and Mozilla have stopped accepting SHA-1 SSL certificates by 2017. Se computo un digest di messaggio SHA1 e quindi criptolo quel digest utilizzando RSA, ottengo un risultato diverso nel chiedere alla class Signature di firmare la stessa cosa:. SHA-1 is a trap-door, one-way function. MessageDigest). getInstance() and passing in the name of the digest algorithm you want to use. Generate SHA or MD5 file checksum hash in java By Lokesh Gupta | Filed Under: Java I/O A checksum hash is an encrypted sequence of characters obtained after applying certain algorithms and manipulations on user provided content. The JDK JCE package offers the SHA1 algorithm through a generic message digest class, javax. NetBeans Platform Login Tutorial. The following code examples are extracted from open source projects. I tried to get the base64 encoded result of a SHA1 digest. I am new java developer. MessageDigest was removed from Honeycomb and later releases of Android, and must be replaced by java. How to generate a SHA1 hash from a String in Java. This Algorithms are initialize in static method called getInstance(). Unfortunately Java 7 doesn't support PBKDF2WithHmacSHA256 and it isn't recommended to generate a larger output key than your hashing algorithm (i. These algorithms are described in the MessageDigest section of the Java Cryptography Architecture Standard Algorithm Name Documentation. Through this exercise I am trying to show the usage of Java transformation in informatica to achieve this. A 384-bit hash may be obtained by truncating the SHA-512 output. Join GitHub today. package examples; import java. We don't save cookies for guest users. Learn Java Secure Hashing algorithms in-depth. The standard Java class MessageDigest can be used to return instances for various message digest algorithms. Java hash functions are implemented as a MessageDigest object, which you can’t instance directly but rather get an instance through the MessageDigest. If you don’t want to download and install any software, you can use Online Hash Value Calculator to calculate a hash (aka message digest) of data on FileFormat. AES encryption is a web tool to encrypt and decrypt text using AES encryption algorithm. 1, PKCS#1/5/8 private/public key, X. You can click to vote up the examples that are useful to you. The following are Jave code examples for showing how to use digest() of the java. MessageDigest for creating the SHA256 hash. How to convert MessageDigest in C#. Post summary: Speed performance comparison of MD5, SHA-1, SHA-256 and SHA-512 cryptographic hash functions in Java. How to calculate hash sum of a string (using Learn more about md5, sha1, java, hash, string MATLAB. 31 and Coldfusion 10, it was working fine with WebSphere version 7. It is a context for learning fundamentals of computer programming within the context of the electronic arts. SHA-1 is a member of the Secure Hash Algorithm family. Informatica expression transformation by default support encryption like MD5, though it does not support encryption like SHa-1 or SHA-256 etc. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. *; import java. FileInputStream; import java. Generate Hash of any message by using your given Algorithm. java * Execution: java OneWay password * Dependencies: StdOut. The JDK JCE package offers the SHA1 algorithm through a generic message digest class, javax. /* * [TestSHA. getInstance() static method. 这篇文章给大家分享了Java实现SHA1加密的相关实例代码,有兴趣的朋友可以测试参考下。. Proxy method for MessageDigest. For Implement secure API authentication over HTTP with Dropwizard post, a one-way hash function was needed. Also get the SHA-1 hash code generator's source code in C#. MessageDigest class. Public key cryptography. MessageDigest and Cipher 分享于 2019阿里云全部产品优惠券(新购或升级都可以使用,强烈推荐). If there is even a single change in the larger data set, the algorithm will create a different checksum value. Message digests are secure one-way hash functions that take arbitrary-sized data and output a fixed-length hash value. * (SHA used in DSA is SHA-1: FIPS 186 with Change No 1. java * * Comptue the SHA1 of the command line argument. There's also another pitfall: if you want to get the SHA-1 of a Java String, then you need to convert that String to a byte [] first (as the input of SHA-1 is a byte [] as well). 事前に準備する外部ライブラリ等はありません。 JavaSEに含まれるjava. SSH2KEXDHGroupNumSHA1 public SSH2KEXDHGroupNumSHA1() Method Detail. GitHub Gist: instantly share code, notes, and snippets. Message digests are secure one-way hash functions that take arbitrary-sized data and output a fixed-length hash value. This first release includes primarily cryptography functionality, which can be incorporated into Java-based applications. Get the built string from the StringBuilder method. If you're "trying to allocate an array 64 bytes in size", you may consider uint8_t Buffer[64]; instead of uint8_t *Buffer[64]; (the latter is an array of 64 pointers to byte) After doing this, you will have no need in malloc as your structure with a 64 bytes array inside is. MessageDigest tasks. [prev in list] [next in list] [prev in thread] [next in thread] List: xml-security-dev Subject: java. securityexception: sha messagedigest not available exception with concurrent scavenger Subscribe to this APAR By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. Hash algorithms defined in the FIPS PUB 180-2. Utilizzo di SHA1 e RSA con java. MD5 Digest: 6. MessageDigest; public class CommonUtils { public static String SHA256Encoder(String password) { try. BlockedNumbers; Browser; CalendarContract; CalendarContract. I have tried Java 6. Enter or paste your text in the first text box and click Generate MD5 Hash Code button. FileInputStream; import java. It is a way to ensure that the transmitted file is exactly the same as the source file. Learn Java Secure Hashing algorithms in-depth. Java Cryptography Architecture (JCA) is part of Java 2 run-time environment. SHA-1 produces an 160-bit (20 byte) message digest used for creating unforgeable digital signatures. 가) 의미 ① 패스워드를 해쉬하여 저장할 경우 복호화는 불가능하지만 모든 가능한 패스워드를 해쉬한 다음 비교해서 추즉하는게 가능함. getProvider() which is executed on the internal MessageDigest object. 如果我编码一个密码 - 让我们说“abcdef12” - 使用MessageDigest的digest()方法,然后将其转换为十六进制值,则String与使用PHP的SHA1方法执行相同操作时不同. MessageDigest (Java. MessageDigest was removed from Honeycomb and later releases of Android, and must be replaced by java. SHA1 Java: sha1 of a text string IOException { MessageDigest sha1. In this article let’s explore implementing SHA-1, SHA-256, SHA-512 and MD5 cryptographic hash functions in Java. sh script, you get the following error:. Informatica expression transformation by default support encryption like MD5, though it does not support encryption like SHa-1 or SHA-256 etc. Ø The Secure Hash Algorithm 1 (SHA-1) is a cryptographic computer security algorithm. MessageDigest (1)的更多相关文章. This MessageDigest class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256. - SHA (Secure Hash Algorithm) là một thuật toán băm dùng để chuyển một đoạn dữ liệu nhất định thành một đoạn dữ liệu có chiều dài không đổi với xác suất khác biệt cao. On a recent project I was asked to upgrade the security algorithm used from SHA1 to SHA256 The project was broken up into 2 code bases, the first being a Java code base which was used to communicate with Adobe LiveCycle ES2. propertiesMETA-INF/LICENSEMETA-INF/maven/org. Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. GitHub Gist: instantly share code, notes, and snippets. sha-1은 이전에 널리 사용되던 md5를 대신해서 쓰이기도 한다. Java equivalent of. 本稿では java 言語で sha-1, sha-256, sha-384, sha-512 のハッシュダイジェスト値を求める方法について解説します。. Instantiate a MessageDigest object with the static method getInstance("SHA") or getInstance("SHA-1″). The password can. MessageDigest和DigestUtils加密算法的更多相关文章. getInstance()) • Reset internal state of hash object (MessageDigest. As of Android 9 (API level 28), the Crypto Java Cryptography Architecture (JCA) provider has been removed. Style 2 - SecureRandom and MessageDigest. MessageDigest sha1. MessageDigest is a java class for algorithms such as SHA-1 or SHA-256. If the signatures differ, you know there is a bug in your SHA-1 signature code. Copy the above file to your jre/lib/security inside java home directory. Note: Code examples/snippets referenced in JavaDocs of MessageDigest class and Java Cryptography Architecture use "SHA" or "SHA-1" algorithms, which are not secured for many applications, as will be discussed below. Java已经实现了MD5、SHA1算法。 利用 java. MessageDigestの利用 (MessageDigestDemo. Hi Sorry if this question has been asked before, i searched but no where to be found I'm unable to start elasticsearch I did reinstall JAVA but nothing changed Trying to use elasticsearch with wordpress Following t…. SHA1 online | SHA256 in JAVA | Secure password generator | Linux SHA1 usage implementation in JAVA: sha1 of a text string and file's sha1 checksum verification. The MessageDigestAlgorithms class provides constants for standard digest algorithms that can be used with the getDigest(String) method and other methods that require the Digest algorithm name. BigInteger getGroupP() getGroupG public abstract java. This is simple example containing two methods – signup() and login(). 4) 7 R1 SR3 (7. GenerateUUID UUID One: 067e6162-3b6f-4ae2-a171-2470b63dff00 UUID Two: 54947df8-0e9e-4471-a2f9-9af509fb5889 If Java 5 is not available, then there are other more laborious ways to generate unique ids (see below). 29 and Java 7. DigestInputStream; import java. java * @version v1. first, string password converted sha1 , want add base64 encode , lastly add salt it. When you receive some encrypted data you cannot see from the data itself whether it was modified during transportation. We rely on OWASP's Password Storage Cheat Sheet to explain hashing best practice and theory. ¿Cómo encriptar en MD5 y SHA1 con Java? Antes de comenzar es importante saber que un dato encriptado es irreversible, esto quiere decir que no se puede obtener de ninguna manera el dato original a partir del hash generado, es por eso que solamente vamos a. To convert a given message to a message digest, follow the steps given below − Step 1: Create a MessageDigest object. MessageDigest sha1 = getMessageDigest(); /* * Java strings are UTF-16, so when digesting use the UTF-8 encoding as * that is standard practice on the Internet. To reproduce your API call, input all of the data from your original request. For Java developers that want to leverage the industry-leading wolfCrypt cryptography library implementation, wolfCrypt JNI provides a Java interface to the native C library. MessageDigest. When you receive some encrypted data you cannot see from the data itself whether it was modified during transportation. Trying with either SHA-256, SHA-1 (and even MD5), I have the following exception: Exception in thread "main" java. The following code examples are extracted from open source projects. getInstance()) • Reset internal state of hash object (MessageDigest. Let us see what is going on with it, first of all, we notice that the hash that I extracted from the password. MessageDigest class ('message digest' is a more formal name for 'hashing'): import java. Choosing two strings, hashing them, and comparing the first 8 hex characters of the hash should produce a match once every 2^32 iterations. Any modification in the original message, either intentional or unintentional, will most certainly result in a change of the digest value. Ø The Secure Hash Algorithm 1 (SHA-1) is a cryptographic computer security algorithm. 实现一个HttpsClient 请求工具. Digest string: 4. An implementation of a sha512(String s) method can be seen here, and the change for a SHA-1 hash would be changing line 71 to: MessageDigest md = MessageDigest. While Java has built in classes to compute SHA 1 hash, it's quite uneasy to use them for a simple task -- calculate SHA-1 hash and return 40 byte hexadecimal string. 这里给大家推荐一个在线软件复杂项交易平台:米鼠网 https://www. Returns the type MessageDigest of the input text with the input salt. We're giving away four copies of Java 13 Revealed: For Early Adoption and Migration and have Kishori Sharan on-line! See this thread for details. After having passed in all the input bytes, get the digest by calling digest. The following java examples will help you to understand the usage of java. /***** * Compilation: javac OneWay. For Java developers that want to leverage the industry-leading wolfCrypt cryptography library implementation, wolfCrypt JNI provides a Java interface to the native C library. However, after only a few hours of researching between Java Cryptography Architecture and PHP Cryptography Architecture, I'm more comfortable with coding security module that will handle security messaging in Java than PHP. A MessageDigest object starts out initialized. Argparse4j - The Java command-line argument parser library¶. SHA2 has 3 variants: SHA256, SHA384 and SHA512. In the same manner I have to use below java code into my PLSQL code to get checksum of the given file name, I have tried using select standard_hash ('MPR_YES_CDC_11122018_V1_. [Java] SHA-1 Encrypter - posted in Source Codes: The question was to develop a small (< 100 lines) program in Java that could be used for holding a password. SHA-1 is a least common denominator available pretty much anywhere the MessageDigest class is. AlarmClock; BlockedNumberContract; BlockedNumberContract. The term Cipher is standard term for an encryption algorithm in the world of cryptography. SHA-1 is commonly displayed as 40 character Hexa-decimal number. Here are general steps to generate a hash value from an input (message):. step1-install eclipse step2-copy main. Calculating a MD5, SHA1, SHA256, SHA384, SHA512 Hash in Java 1 Reply Hi, today I will show you with examples how to evaluate Hashes in Java programming languages. This class is immutable and thread-safe. SHA2 has 3 variants: SHA256, SHA384 and SHA512. BitTorrent uses SHA-1 to verify downloads. If the three axioms above are valid, then digital cryptography exists. The passwords are encoded using MessageDigest's digest() method. どんな長さのデータを渡しても、sha-1では20バイト、md5では16バイトになる。 update()はdigest()を呼び出すまで複数回呼べる。 MessageDigestインスタンス を使い回したいなら、digest()を呼び出すと自動的に計算結果がリセットされるので、そのまま次のデータをupdate. MessageDigest (Java. Raw byte arrays cannot usually be interpreted as character encodings like UTF-8, because not every byte in every order is an legal that encoding. MessageDigest Class in Java Starting from JDK 9 , we can simply use the built-in SHA3-256 algorithm: final MessageDigest digest = MessageDigest. Sun's implementation of SHA1 can be accessed through a generic class called MessageDigest. Java已经实现了MD5、SHA1算法。 利用 java. FileInputStream; import java. The implementation implements the Secure Hash Algorithm (SHA-1), as defined in the National Institute for Standards and Technology's (NIST) FIPS 180-2 document. A US government standard, FIPS 180-1. Informatica expression transformation by default support encryption like MD5, though it does not support encryption like SHa-1 or SHA-256 etc. This tutorial demonstrates how to generate MD5 and SHA hash values from String or file using Java. Argparse4j is available in Maven central repository:. Join GitHub today. It is a way to ensure that the transmitted file is exactly the same as the source file. Implementing a simple factory helps you to return these instances in a type safe way without magic strings and preventing catch blocks with NoSuchAlgorithmException in your code. This MessageDigest class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256. Please note that a lot of these algorithms are now deemed INSECURE. MessageDigest. InternalError: java. Below, I’m giving a Java example of how to do password hashing in an login module. This is the code that we will model our discussion after, some pieces of the code have been moved around to make the discussion flow better, the results are the same though. The SHA1 variant is probably the most useful format for DBD authentication. Note: Code examples/snippets referenced in JavaDocs of MessageDigest class and Java Cryptography Architecture use "SHA" or "SHA-1" algorithms, which are not secured for many applications, as will be discussed below. MD5 Digest: 6. 这里给大家推荐一个在线软件复杂项交易平台:米鼠网 https://www. 方法----MessageDigest和DigestUtils加密算法. getProvider() which is executed on the internal MessageDigest object. Future releases of this API will include more primitives supporting system security and secure distributed computing. Java基础—数据摘要算法解析 数据摘要算法是密码学算法中非常重要的一个分支,它通过对所有数据提取指纹信息以实现数据签名、数据完整性校验等功能,由于其不可逆性,有时候会被用做敏感信息的加密。. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. To convert a given message to a message digest, follow the steps given below − Step 1: Create a MessageDigest object. (!) This plugin is updated to Grails 1. Cela signifie que (en Java) ils produisent un byte[]. Chilkat Android™ Downloads. Review the parameters of the encryption implementation. getInstance()) • Reset internal state of hash object (MessageDigest. The first two characters of SHA1 is a directory name, and the rest of the characters are the file name. In Java, the MessageDigest class provides functionality for creating a digest of any arbitrary data. Trying with either SHA-256, SHA-1 (and even MD5), I have the following exception: Exception in thread "main" java. AlarmClock; BlockedNumberContract; BlockedNumberContract. The following code examples are extracted from open source projects. SHA-1 is a member of the Secure Hash Algorithm family. NoSuchAlgorithmExce… SHA2の16進文字列を簡単に取得できるライブラリが無いので書いた。 書いたと言ってもアルゴリズムはjava. The login will be implemented with the DialogDisplayer class of the NetBeans APIs. Cipher) class represents an encryption algorithm. SHA1 is a one-way hash function and it computes a 160-bit message digest. Net, Java and PHP. The trick was that the password had to be encrypted well enough that it couldn't be cracked without a brute force attack. On a recent project I was asked to upgrade the security algorithm used from SHA1 to SHA256 The project was broken up into 2 code bases, the first being a Java code base which was used to communicate with Adobe LiveCycle ES2. Hashing With SHA-256 in Oracle 11g R2 I will use the ability to create Java classes within the Oracle database. public Object clone() throws CloneNotSupportedException See Also: Cloneable, MessageDigestSpi. digest(string. DigestInputStream; import java. getInstance()) • Reset internal state of hash object (MessageDigest. Also I tried to use a javascript function. Nowadays many, if not all, smartphones offer, in addition to the traditional password lock protection, a pattern lock one, which is a mix of gestures done by the phone owner joining points on a matrix in order to unlock his phone. pades package. Java基础—数据摘要算法解析. SHA256, provided by TBS INTERNET since 2008, will in the coming few years replace SHA1. Now i am doing one struts application. Java provides a class named MessageDigest which belongs to the package java. MD4 Digest: 5. SHA-1 is a least common denominator available pretty much anywhere the MessageDigest class is. One important consideration is to always use the same String encoding when generating the digest, for this reason we get the message bytes in UTF-8. The following java examples will help you to understand the usage of java. ai; import java. xml like that:. This program uses the built-in class java. The MD5 hash code for the entered text appears in the second box. org) */ public class JKS extends KeyStoreSpi. SHA1 is a one-way hash function and it computes a 160-bit message digest. After calling the digest method, the Message Digest object is reset to its original state. 5, we got an NullPointerException at org. I configured my standalone. Your votes will be used in our system to get more good examples. A benchmark test is a tool that you can use to compare the speed and performance of any given set-up/device. java): import java. getBytes(); md. Hi, With Sonar-Java 3. Java 中文件MD5和SHA1的比较. Every implementation of the Java platform is required to support the following standard MessageDigest algorithms: MD5. Is there anyway by which we can use below java code into my PLSQL. *; import java. I'm not sure if this is actually possible, so I just went with something that still does take a fair while to crack. Since the SHA1 and Base64 functions are commonly available, other software can populate a database with encrypted passwords that are usable by Apache basic authentication. Note that the factory method getInstance is the only way to create a MessageDigest object. This MessageDigest class provides the functionality of a message digest algorithm, such as MD5 or SHA. The result is a. 字符串的MD5(下面的代码有详细注释). But the result is not compatible with the same operation in Java. MessageDigest. SHA-1 is a member of the Secure Hash Algorithm family. Signature vs. Operations to simplifiy common java. To generate hashes using any possible algorithms, I use digest method of a Java class:. 利用Java自带的MD5加密java.security.MessageDigest;. Java Code Examples for javax. If you don’t want to download and install any software, you can use Online Hash Value Calculator to calculate a hash (aka message digest) of data on FileFormat. The Java platform provides two implementation of hashing functions: MD5 (produces 128-bit hash value), SHA-1 (160-bit) and SHA-2 (256-bit). The following are Jave code examples for showing how to use digest() of the java. If the three axioms above are valid, then digital cryptography exists. The following program shows how to generate SHA256 hash in Java. List All Provider And Its Algorithms /* Buildfile: build. 而基于hash函数的各种算法的产生和运用,为信息上一把牢固的安全之锁,md5、sha-1文件校验,加密存储,数字签名,PKI建设等对各种信息有充分的安全保障,能有效地防止攻击,保. MessageDigest org. Processing is an electronic sketchbook for developing ideas. MD5 hash considered to be one of the most widely-used used secure hashing functions, producing a 128-bit digest (32 hex numbers) from any data. Ø SHA-1 is commonly used in cryptographic applications and environments where the requirements for data integrity is high. How to calculate hash sum of a string (using Learn more about md5, sha1, java, hash, string MATLAB. 解决encryption - Using SHA1 and RSA with java. 0 (the "License"); * you may not use this file except in. I am using Windows 7 Professional with SP1. SHA1 is a one-way hash function and it computes a 160-bit message digest. The first two characters of SHA1 is a directory name, and the rest of the characters are the file name. (Java) Hash Algorithms: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512. 1(Lollipop)源码的下载、编译(eng版本)并烧录到Ne 15 Android为Button按钮添加监听事件的几种方式. It fails due to SHA-1 digest mismatch between the ones present in manifest file (abc. If the signatures differ, you know there is a bug in your SHA-1 signature code. Key; import java. I had managed to get below code but its not working. JAVA SHA1 and MD5 Implementation with Cryptography Library ( API ) by - Huzaif Sayyed on - October 18, 2017 Write a program in C++, C# or Java to implement RSA algorithm using Libraries (API). KeyPair; import java. ” You forgot SHA-224 algorithm. org) */ public class JKS extends KeyStoreSpi. Then it uses the DigestUtils class from Apache commons. IllegalArgumentException - when a NoSuchAlgorithmException is caught, which should never happen because SHA-1 is a built-in algorithm Since: 1. This tutorial demonstrates how to generate MD5 and SHA hash values from String or file using Java. This week's book giveaway is in the Java in General forum. 哈希算法可用于验证数据完整性,具有防篡改检测的功能; 常用的哈希算法有MD5、SHA-1等; 用哈希存储口令时要考虑彩虹表攻击。. 另外还有一种常用的消息摘要算法SHA1。如果想了解这些的话,可以去百度百科:MD5、SHA1、消息摘要算法。 Java已经实现了MD5、SHA1算法。利用java. Java String to SHA1. * * @author Abhishek Verma. For example, the getInstance() method may throw an exception if the SHA-256 algorithm is not implemented by the Java Runtime Environment (JRE) which is part of the Informatica platform installation (and hence part of the PowerCenter installation), but this exception is the only exception caught in the Java code you've posted. Future releases of this API will include more primitives supporting system security and secure distributed computing. Argparse4j is available in Maven central repository:. MessageDigest and Cipher 分享于 2019阿里云全部产品优惠券(新购或升级都可以使用,强烈推荐). Even sha can be done by default using java, but need some extra work to do. Both Java and PHP did a great job at encrypting string and were very easy to develop. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. getInstance(Unknown Source) at message. This program uses the built-in class java. Solution would be to use getDigestLength() or the length of the returned digest and add some proper unit tests. SecretKeySpec. Proxy method for MessageDigest. This method uses the MessageDigest class from the java. クスコ クラウン マジェスタ uzs141/143/145 (91. Any failures are because the Solaris 10 installed is too old as the bug was in Solaris, not in Java. public Object clone() throws CloneNotSupportedException See Also: Cloneable, MessageDigestSpi. How We Use Encryption Today¶. update,我的理解update就是提交数据。. Crypto provider. This page was generated on: 06/11/2018. How to check Signature Algorithm of SSL certificate using OpenSSL Command?. * * @param algorithm * the name of the algorithm requested. (!) This plugin is updated to Grails 1. 这里给大家推荐一个在线软件复杂项交易平台:米鼠网 https://www. 字符串的MD5(下面的代码有详细注释). SHA-1 often appears in security protocols for example, many HTTPS websites use RSA with SHA-1 to secure their connections. That is, it is possible to do all of the previous tasks digitally. But with this certificate I always created sha1 signatures for our. NoClassDefFoundError: javax/crypto/e From: Sanga. Use the method update to pass in an array of bytes on which you want to compute a hash (you can call this method several times successively). The Java Security API is a new Java core API, built around the java. Java examples of MD5, SHA256, SHA512, PBKDF2, BCrypt, SCrypt algorithms with salt to create secure passwords. The method you are looking for is not specific to Android, but to Java in general.