Android examples for java.security:Sha
SHA-1 key generate
//package com.java2s; import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.Arrays; import javax.crypto.spec.SecretKeySpec; public class Main { public static SecretKeySpec keygenerate(String passphrase) { SecretKeySpec sks = null; try {/*from w ww . ja v a 2 s.c om*/ byte[] key = passphrase.getBytes("UTF-8"); MessageDigest sha = MessageDigest.getInstance("SHA-1"); key = sha.digest(key); key = Arrays.copyOf(key, 16); // use only first 128 bit sks = new SecretKeySpec(key, "AES"); } catch (NoSuchAlgorithmException e) { } catch (UnsupportedEncodingException e) { } return sks; } }