From b3f30b241bda8dc426c3efc24d6c825c89361e07 Mon Sep 17 00:00:00 2001 From: wenc000 <450292408@qq.com> Date: Fri, 2 Aug 2019 15:34:28 +0800 Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9EToken=E7=AE=A1=E7=90=86?= =?UTF-8?q?=E5=86=85=E5=AE=B9=EF=BC=8C=E4=BF=AE=E6=94=B9HashMap=E5=B7=A5?= =?UTF-8?q?=E5=85=B7=E7=B1=BB=EF=BC=8C=E6=96=B0=E5=A2=9ETokenException?= =?UTF-8?q?=E5=BC=82=E5=B8=B8=E7=B1=BB?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../com/cm/common/base/AbstractService.java | 55 +- .../java/com/cm/common/filter/AppFilter.java | 100 +++ .../cm/common/token/app/AppTokenManager.java | 109 +++ .../cm/common/token/app/entity/AppToken.java | 55 ++ .../encoder/BCryptPasswordEncoderUtil.java | 705 ++++++++++++++++++ 5 files changed, 1019 insertions(+), 5 deletions(-) create mode 100644 cloud-common/src/main/java/com/cm/common/filter/AppFilter.java create mode 100644 cloud-common/src/main/java/com/cm/common/token/app/AppTokenManager.java create mode 100644 cloud-common/src/main/java/com/cm/common/token/app/entity/AppToken.java create mode 100644 cloud-common/src/main/java/com/cm/common/utils/encoder/BCryptPasswordEncoderUtil.java diff --git a/cloud-common/src/main/java/com/cm/common/base/AbstractService.java b/cloud-common/src/main/java/com/cm/common/base/AbstractService.java index 666bfd1..be82dcd 100644 --- a/cloud-common/src/main/java/com/cm/common/base/AbstractService.java +++ b/cloud-common/src/main/java/com/cm/common/base/AbstractService.java @@ -3,6 +3,9 @@ package com.cm.common.base; import com.cm.common.component.SecurityComponent; import com.cm.common.pojo.bos.UserInfoBO; import com.cm.common.pojo.dtos.ZTreeDTO; +import com.cm.common.token.app.AppTokenManager; +import com.cm.common.token.app.entity.AppToken; +import com.cm.common.token.app.entity.AppTokenUser; import com.cm.common.utils.DateUtil; import org.slf4j.Logger; import org.slf4j.LoggerFactory; @@ -30,29 +33,71 @@ public abstract class AbstractService { private HttpSession httpSession; /** - * 新增基础数据 + * 设置新增基础数据 * * @param params */ protected void setSaveInfo(Map params) { UserInfoBO userInfoBO = securityComponent.getCurrentUser(); + setSave(userInfoBO.getUserId(), params); + } + + /** + * token类型设置新增基础数据 + * + * @param token + * @param params + */ + protected void setSaveInfo(String token, Map params) { + AppTokenUser appTokenUser = AppTokenManager.getInstance().getToken(token).getAppTokenUser(); + setSave(appTokenUser.getId(), params); + } + + /** + * 设置新增 + * + * @param userId + * @param params + */ + private void setSave(String userId, Map params) { String currentDate = DateUtil.getTime(); - params.put("creator", userInfoBO.getUserId()); + params.put("creator", userId); params.put("gmtCreate", currentDate); - params.put("modifier", userInfoBO.getUserId()); + params.put("modifier", userId); params.put("gmtModified", currentDate); params.put("isDelete", 0); } /** - * 修改基础数据 + * 设置修改基础数据 * * @param params */ protected void setUpdateInfo(Map params) { UserInfoBO userInfoBO = securityComponent.getCurrentUser(); + setUpdate(userInfoBO.getUserId(), params); + } + + /** + * token类型设置修改基础数据 + * + * @param token + * @param params + */ + protected void setUpdateInfo(String token, Map params) { + AppTokenUser appTokenUser = AppTokenManager.getInstance().getToken(token).getAppTokenUser(); + setUpdate(appTokenUser.getId(), params); + } + + /** + * 设置修改 + * + * @param userId + * @param params + */ + private void setUpdate(String userId, Map params) { String currentDate = DateUtil.getTime(); - params.put("modifier", userInfoBO.getUserId()); + params.put("modifier", userId); params.put("gmtModified", currentDate); } diff --git a/cloud-common/src/main/java/com/cm/common/filter/AppFilter.java b/cloud-common/src/main/java/com/cm/common/filter/AppFilter.java new file mode 100644 index 0000000..db569e0 --- /dev/null +++ b/cloud-common/src/main/java/com/cm/common/filter/AppFilter.java @@ -0,0 +1,100 @@ +package com.cm.common.filter; + +import com.alibaba.fastjson.JSON; +import com.cm.common.enums.ErrorResultCodeEnum; +import com.cm.common.exception.TokenException; +import com.cm.common.result.ErrorResult; +import com.cm.common.token.app.AppTokenManager; +import com.cm.common.token.app.entity.AppToken; +import com.cm.common.token.app.entity.AppTokenUser; +import org.apache.commons.lang3.StringUtils; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.context.annotation.Configuration; +import org.springframework.http.HttpStatus; +import org.springframework.util.AntPathMatcher; + +import javax.servlet.*; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import java.io.IOException; + +/** + * When you feel like quitting. Think about why you started + * 当你想要放弃的时候，想想当初你为何开始 + * + * @ClassName: AppFilter + * @Description: app过滤器 + * @Author: WangGeng + * @Date: 2019-08-01 13:59 + * @Version: 1.0 + **/ +public class AppFilter implements Filter { + + private static final Logger LOG = LoggerFactory.getLogger(AppFilter.class); + private AntPathMatcher antPathMatcher; + private static final String URL_LOGIN = "/app/sign/login"; + + @Override + public void init(FilterConfig filterConfig) throws ServletException { + antPathMatcher = new AntPathMatcher(); + } + + @Override + public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { + HttpServletRequest request = (HttpServletRequest) servletRequest; + HttpServletResponse response = (HttpServletResponse) servletResponse; + String requestUri = request.getRequestURI(); + if (antPathMatcher.match(URL_LOGIN, requestUri)) { + filterChain.doFilter(request, response); + return; + } + String token = request.getHeader("token"); + if (StringUtils.isBlank(token)) { + errorResponse(response, "token不能为空"); + return; + } + LOG.debug("校验token"); + try { + checkToken(token); + } catch (TokenException e) { + errorResponse(response, e.getMessage()); + return; + } + filterChain.doFilter(request, response); + } + + /** + * 校验token + * + * @param token + * @return + * @throws TokenException + */ + private void checkToken(String token) throws TokenException { + AppTokenManager appTokenManager = AppTokenManager.getInstance(); + LOG.debug("检查token是否存在"); + AppToken appToken = appTokenManager.getToken(token); + if (appToken != null) { + return; + } + LOG.debug("解析token是否合法"); + AppTokenUser appTokenUser = appTokenManager.parseToAppTokenUser(token); + appTokenManager.addToken(token, appTokenUser); + } + + /** + * 错误返回 + * + * @param response + * @param errorInfo + * @throws IOException + */ + private void errorResponse(HttpServletResponse response, String errorInfo) throws IOException { + response.setStatus(HttpStatus.BAD_REQUEST.value()); + response.setHeader("Content-Type", "application/json;charset=UTF-8"); + ErrorResult result = new ErrorResult(ErrorResultCodeEnum.PARAMS_ERROR.getValue(), errorInfo); + response.getWriter().write(JSON.toJSONString(result)); + } + +} diff --git a/cloud-common/src/main/java/com/cm/common/token/app/AppTokenManager.java b/cloud-common/src/main/java/com/cm/common/token/app/AppTokenManager.java new file mode 100644 index 0000000..35545c6 --- /dev/null +++ b/cloud-common/src/main/java/com/cm/common/token/app/AppTokenManager.java @@ -0,0 +1,109 @@ +package com.cm.common.token.app; + +import com.alibaba.fastjson.JSONObject; +import com.cm.common.constants.ISystemConstant; +import com.cm.common.exception.TokenException; +import com.cm.common.token.app.entity.AppToken; +import com.cm.common.token.app.entity.AppTokenUser; +import com.cm.common.utils.AesUtil; +import org.apache.commons.codec.binary.Base64; +import org.apache.commons.lang3.StringUtils; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Date; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +/** + * When you feel like quitting. Think about why you started + * 当你想要放弃的时候，想想当初你为何开始 + * + * @ClassName: AppTokenManager + * @Description: AppToken管理 + * @Author: WangGeng + * @Date: 2019-08-02 11:08 + * @Version: 1.0 + **/ +public class AppTokenManager { + + private static final Logger LOG = LoggerFactory.getLogger(AppTokenManager.class); + private static AppTokenManager appTokenManager = AppTokenManagerBuilder.appTokenManager; + private static final Map tokens = new ConcurrentHashMap(); + + private AppTokenManager() { + } + + public static AppTokenManager getInstance() { + return appTokenManager; + } + + /** + * 获取token + * + * @param token + * @return + */ + public AppToken getToken(String token) { + AppToken appToken = tokens.get(token); + if (appToken != null) { + appToken.setLastTime(System.currentTimeMillis()); + } + return appToken; + } + + /** + * 添加token + * + * @param token + * @param appTokenUser + */ + public void addToken(String token, AppTokenUser appTokenUser) { + AppToken appToken = new AppToken(); + appToken.setToken(token); + appToken.setLastTime(System.currentTimeMillis()); + appToken.setAppTokenUser(appTokenUser); + tokens.put(token, appToken); + } + + public AppTokenUser parseToAppTokenUser(String token) throws TokenException { + String userInfo = null; + try { + userInfo = AesUtil.aesCommonDecoder(ISystemConstant.APP_TOKEN_AES_KEY, new String(Base64.decodeBase64(token), "UTF-8")); + } catch (Exception e) { + LOG.error(e.getMessage(), e); + throw new TokenException("Token解码异常"); + } + JSONObject userInfoObj = JSONObject.parseObject(userInfo); + if (userInfoObj == null) { + throw new TokenException("Token非法"); + } + String appTokenSign = userInfoObj.getString(ISystemConstant.APP_TOKEN_SIGN); + if (StringUtils.isBlank(appTokenSign)) { + LOG.debug("Token标识为空"); + throw new TokenException("Token非法"); + } + if (!StringUtils.startsWith(appTokenSign, ISystemConstant.APP_TOKEN_VERIFY)) { + LOG.debug("Token标识开头错误"); + throw new TokenException("Token非法"); + } + String[] appTokenSignArray = appTokenSign.split("_"); + if (appTokenSignArray.length != 3) { + LOG.debug("Token标识格式长度异常，应为3，这里为：{}", appTokenSignArray.length); + throw new TokenException("Token非法"); + } + try { + new Date(Long.parseLong(appTokenSignArray[2])); + } catch (NumberFormatException e) { + e.printStackTrace(); + LOG.debug("Token时间戳异常"); + throw new TokenException("Token非法"); + } + return JSONObject.toJavaObject(userInfoObj, AppTokenUser.class); + } + + private static class AppTokenManagerBuilder { + public static final AppTokenManager appTokenManager = new AppTokenManager(); + } + +} diff --git a/cloud-common/src/main/java/com/cm/common/token/app/entity/AppToken.java b/cloud-common/src/main/java/com/cm/common/token/app/entity/AppToken.java new file mode 100644 index 0000000..904c2ef --- /dev/null +++ b/cloud-common/src/main/java/com/cm/common/token/app/entity/AppToken.java @@ -0,0 +1,55 @@ +package com.cm.common.token.app.entity; + +/** + * When you feel like quitting. Think about why you started + * 当你想要放弃的时候，想想当初你为何开始 + * + * @ClassName: TokenInfo + * @Description: token信息 + * @Author: WangGeng + * @Date: 2019-08-02 11:19 + * @Version: 1.0 + **/ +public class AppToken { + + private String token; + private long lastTime; + private AppTokenUser appTokenUser; + + public String getToken() { + return token == null ? "" : token.trim(); + } + + public void setToken(String token) { + this.token = token; + } + + public long getLastTime() { + return lastTime; + } + + public void setLastTime(long lastTime) { + this.lastTime = lastTime; + } + + public AppTokenUser getAppTokenUser() { + return appTokenUser; + } + + public void setAppTokenUser(AppTokenUser appTokenUser) { + this.appTokenUser = appTokenUser; + } + + @Override + public String toString() { + final StringBuilder sb = new StringBuilder("{"); + sb.append("\"token\":") + .append("\"").append(token).append("\""); + sb.append(",\"lastTime\":") + .append(lastTime); + sb.append(",\"tokenUser\":") + .append(appTokenUser); + sb.append('}'); + return sb.toString(); + } +} diff --git a/cloud-common/src/main/java/com/cm/common/utils/encoder/BCryptPasswordEncoderUtil.java b/cloud-common/src/main/java/com/cm/common/utils/encoder/BCryptPasswordEncoderUtil.java new file mode 100644 index 0000000..931c011 --- /dev/null +++ b/cloud-common/src/main/java/com/cm/common/utils/encoder/BCryptPasswordEncoderUtil.java @@ -0,0 +1,705 @@ +package com.cm.common.utils.encoder; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.ByteArrayOutputStream; +import java.io.UnsupportedEncodingException; +import java.security.SecureRandom; +import java.util.regex.Pattern; + +/** + * When you feel like quitting. Think about why you started + * 当你想要放弃的时候，想想当初你为何开始 + * + * @ClassName: BCryptPasswordEncoderUtil + * @Description: BCrypt密码加密 + * @Author: WangGeng + * @Date: 2019-08-01 15:48 + * @Version: 1.0 + **/ +public class BCryptPasswordEncoderUtil { + private Pattern BCRYPT_PATTERN = Pattern.compile("\\A\\$2a?\\$\\d\\d\\$[./0-9A-Za-z]{53}"); + private final Logger LOG = LoggerFactory.getLogger(BCryptPasswordEncoderUtil.class); + + private final int strength; + + private final java.security.SecureRandom random; + + public BCryptPasswordEncoderUtil() { + this(-1); + } + + /** + * @param strength the log rounds to use, between 4 and 31 + */ + public BCryptPasswordEncoderUtil(int strength) { + this(strength, null); + } + + /** + * @param strength the log rounds to use, between 4 and 31 + * @param random the secure random instance to use + */ + public BCryptPasswordEncoderUtil(int strength, SecureRandom random) { + if (strength != -1 && (strength < BCrypt.MIN_LOG_ROUNDS || strength > BCrypt.MAX_LOG_ROUNDS)) { + throw new IllegalArgumentException("Bad strength"); + } + this.strength = strength; + this.random = random; + } + + public String encode(CharSequence rawPassword) { + String salt; + if (strength > 0) { + if (random != null) { + salt = BCrypt.gensalt(strength, random); + } else { + salt = BCrypt.gensalt(strength); + } + } else { + salt = BCrypt.gensalt(); + } + return BCrypt.hashpw(rawPassword.toString(), salt); + } + + public boolean matches(CharSequence rawPassword, String encodedPassword) { + if (encodedPassword == null || encodedPassword.length() == 0) { + LOG.warn("密码编码为空"); + return false; + } + + if (!BCRYPT_PATTERN.matcher(encodedPassword).matches()) { + LOG.warn("密码格式不是 BCrypt 类型"); + return false; + } + + return BCrypt.checkpw(rawPassword.toString(), encodedPassword); + } + + private static class BCrypt { + private static final int GENSALT_DEFAULT_LOG2_ROUNDS = 10; + private static final int BCRYPT_SALT_LEN = 16; + // Blowfish parameters + private static final int BLOWFISH_NUM_ROUNDS = 16; + // Initial contents of key schedule + private static final int P_orig[] = {0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, + 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, + 0xbe5466cf, 0x34e90c6c, 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, + 0x9216d5d9, 0x8979fb1b}; + private static final int S_orig[] = {0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, + 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7, + 0x0801f2e2, 0x858efc16, 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, + 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, + 0x9c30d539, 0x2af26013, 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, + 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, 0xd71577c1, 0xbd314b27, + 0x78af2fda, 0x55605c60, 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, + 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, + 0xb3ee1411, 0x636fbc2a, 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, + 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, 0x3b8f4898, 0x6b4bb9af, + 0xc4bfe81b, 0x66282193, 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, + 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, + 0x0f6d6ff3, 0x83f44239, 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, + 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, 0x6a51a0d2, 0xd8542f68, + 0x960fa728, 0xab5133a3, 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, + 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, + 0x7d84a5c3, 0x3b8b5ebe, 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, + 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, 0x37d0d724, 0xd00a1248, + 0xdb0fead3, 0x49f1c09b, 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, + 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, + 0x5e5c9ec2, 0x196a2463, 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, + 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, 0xbee3d004, 0xde334afd, + 0x660f2807, 0x192e4bb3, 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, + 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, + 0x8ea5e9f8, 0xdb3222f8, 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, + 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, 0x9e5c57bb, 0xca6f8ca0, + 0x1a87562e, 0xdf1769db, 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, + 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, + 0x4afcb56c, 0x2dd1d35b, 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, + 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, 0xef20cada, 0x36774c01, + 0xd07e9efe, 0x2bf11fb4, 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, + 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, + 0x8888b812, 0x900df01c, 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, + 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, 0xe5a0cc0f, 0xb56f74e8, + 0x18acf3d6, 0xce89e299, 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, + 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, + 0xc75442f5, 0xfb9d35cf, 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, + 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, 0x2464369b, 0xf009b91e, + 0x5563911d, 0x59dfa6aa, 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, + 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, + 0x1b510052, 0x9a532915, 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, + 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6, + 0xff34052e, 0xc5855664, 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d, + 0x9cee60b8, 0x8fedb266, 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, + 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, 0x3f54989a, 0x5b429d65, + 0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9, + 0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, + 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, 0xb03ada37, 0xf0500c0d, + 0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc, + 0xc8b57634, 0x9af3dda7, 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, + 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, 0x4e548b38, 0x4f6db908, + 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124, + 0x501adde6, 0x9f84cd87, 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, + 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, 0xef1c1847, 0x3215d908, + 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b, + 0x3c11183b, 0x5924a509, 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, + 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, 0x771fe71c, 0x4e3d06fa, + 0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d, + 0x1939260f, 0x19c27960, 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, + 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, 0xc332ddef, 0xbe6c5aa5, + 0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96, + 0x0334fe1e, 0xaa0363cf, 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, + 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, 0x648b1eaf, 0x19bdf0ca, + 0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77, + 0x11ed935f, 0x16681281, 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, + 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, 0xcdb30aeb, 0x532e3054, + 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea, + 0xdb6c4f15, 0xfacb4fd0, 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, + 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, 0xcf62a1f2, 0x5b8d2646, + 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea, + 0x1dadf43e, 0x233f7061, 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, + 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, 0xa6078084, 0x19f8509e, + 0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd, + 0x675fda79, 0xe3674340, 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, + 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, 0xe93d5a68, 0x948140f7, + 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, + 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, 0x1e39f62e, 0x97244546, + 0x14214f74, 0xbf8b8840, 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, + 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, 0x96eb27b3, 0x55fd3941, + 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, + 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, 0x4f3ffea2, 0xe887ad8c, + 0xb58ce006, 0x7af4d6b6, 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, + 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, 0x1dc9faf7, 0x4b6d1856, + 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, + 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, 0x55533a3a, 0x20838d87, + 0xfe6ba9b7, 0xd096954b, 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, + 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, 0xfdf8e802, 0x04272f70, + 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, + 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, 0x325f51eb, 0xd59bc0d1, + 0xf2bcc18f, 0x41113564, 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, + 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, 0x6b2395e0, 0x333e92e1, + 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, + 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, 0x5449a36f, 0x877d48fa, + 0xc39dfd27, 0xf33e8d1e, 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, + 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, 0xc67b5510, 0x6d672c37, + 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, + 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, 0xbb132f88, 0x515bad24, + 0x7b9479bf, 0x763bd6eb, 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, + 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, 0x6a124237, 0xb79251e7, + 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, + 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, 0x64af674e, 0xda86a85f, + 0xbebfe988, 0x64e4c3fe, 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, + 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, 0x83426b33, 0xf01eab71, + 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, + 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, 0x5366f9c3, 0xc8b38e74, + 0xb475f255, 0x46fcd9b9, 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, + 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, 0xb90bace1, 0xbb8205d0, + 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, + 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, 0x1ab93d1d, 0x0ba5a4df, + 0xa186f20f, 0x2868f169, 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, + 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, 0x9af88c27, 0x773f8641, + 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, + 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, 0xbbcbee56, 0x90bcb6de, + 0xebfc7da1, 0xce591d76, 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, + 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, 0xed545578, 0x08fca5b5, + 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, + 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, 0xd79a3234, 0x92638212, + 0x670efa8e, 0x406000e0, 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, + 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, 0xd5118e9d, 0xbf0f7315, + 0xd62d1c7e, 0xc700c47b, 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, + 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, + 0xd5730a1d, 0x4cd04dc6, 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, + 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, 0xc089c2b8, 0x43242ef6, + 0xa51e03aa, 0x9cf2d0a4, 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, + 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, + 0x3f046f69, 0x77fa0a59, 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, + 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, 0x96d5ac3a, 0x017da67d, + 0xd1cf3ed6, 0x7c7d2d28, 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, + 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, + 0xf8d56629, 0x79132e28, 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, + 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, 0xc3eb9e15, 0x3c9057a2, + 0x97271aec, 0xa93a072a, 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, + 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, + 0xabcc5167, 0xccad925f, 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, + 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, 0xa8b6e37e, 0xc3293d46, + 0x48de5369, 0x6413e680, 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, + 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, + 0xccd2017f, 0x6bb4e3bb, 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, + 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, 0xd29be463, 0x542f5d9e, + 0xaec2771b, 0xf64e6370, 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, + 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, + 0x06b89fb4, 0xce6ea048, 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, + 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, 0xa08839e1, 0x51ce794b, + 0x2f32c9b7, 0xa01fbac9, 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, + 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, + 0x8df9317c, 0xe0b12b4f, 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, + 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, 0xfae59361, 0xceb69ceb, + 0xc2a86459, 0x12baa8d1, 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, + 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, + 0xd3a0342b, 0x8971f21e, 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, + 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, 0xe54cda54, 0x1edad891, + 0xce6279cf, 0xcd3e7e6f, 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, + 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, + 0x6e163697, 0x88d273cc, 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, + 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, 0xc9aa53fd, 0x62a80f00, + 0xbb25bfe2, 0x35bdd2f6, 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, + 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, + 0x77afa1c5, 0x20756060, 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, + 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, 0x90d4f869, 0xa65cdea0, + 0x3f09252d, 0xc208e69f, 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6}; + // bcrypt IV: "OrpheanBeholderScryDoubt" + static private final int bf_crypt_ciphertext[] = {0x4f727068, 0x65616e42, + 0x65686f6c, 0x64657253, 0x63727944, 0x6f756274}; + // Table for Base64 encoding + static private final char base64_code[] = {'.', '/', 'A', 'B', 'C', 'D', 'E', 'F', + 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', + 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', + 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', + 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}; + // Table for Base64 decoding + static private final byte index_64[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 54, 55, + 56, 57, 58, 59, 60, 61, 62, 63, -1, -1, -1, -1, -1, -1, -1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, + -1, -1, -1, -1, -1, -1, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, -1, -1, -1, -1, -1}; + static final int MIN_LOG_ROUNDS = 4; + static final int MAX_LOG_ROUNDS = 31; + // Expanded Blowfish key + private int P[]; + private int S[]; + + /** + * Encode a byte array using bcrypt's slightly-modified base64 encoding scheme. Note + * that this is not compatible with the standard MIME-base64 + * encoding. + * + * @param d the byte array to encode + * @param len the number of bytes to encode + * @param rs the destination buffer for the base64-encoded string + * @throws IllegalArgumentException if the length is invalid + */ + static void encode_base64(byte d[], int len, StringBuilder rs) + throws IllegalArgumentException { + int off = 0; + int c1, c2; + + if (len <= 0 || len > d.length) { + throw new IllegalArgumentException("Invalid len"); + } + + while (off < len) { + c1 = d[off++] & 0xff; + rs.append(base64_code[(c1 >> 2) & 0x3f]); + c1 = (c1 & 0x03) << 4; + if (off >= len) { + rs.append(base64_code[c1 & 0x3f]); + break; + } + c2 = d[off++] & 0xff; + c1 |= (c2 >> 4) & 0x0f; + rs.append(base64_code[c1 & 0x3f]); + c1 = (c2 & 0x0f) << 2; + if (off >= len) { + rs.append(base64_code[c1 & 0x3f]); + break; + } + c2 = d[off++] & 0xff; + c1 |= (c2 >> 6) & 0x03; + rs.append(base64_code[c1 & 0x3f]); + rs.append(base64_code[c2 & 0x3f]); + } + } + + /** + * Look up the 3 bits base64-encoded by the specified character, range-checking + * against conversion table + * + * @param x the base64-encoded value + * @return the decoded value of x + */ + private static byte char64(char x) { + if (x > index_64.length) { + return -1; + } + return index_64[x]; + } + + /** + * Decode a string encoded using bcrypt's base64 scheme to a byte array. Note that + * this is *not* compatible with the standard MIME-base64 encoding. + * + * @param s the string to decode + * @param maxolen the maximum number of bytes to decode + * @return an array containing the decoded bytes + * @throws IllegalArgumentException if maxolen is invalid + */ + static byte[] decode_base64(String s, int maxolen) throws IllegalArgumentException { + ByteArrayOutputStream out = new ByteArrayOutputStream(maxolen); + int off = 0, slen = s.length(), olen = 0; + byte c1, c2, c3, c4, o; + + if (maxolen <= 0) { + throw new IllegalArgumentException("Invalid maxolen"); + } + + while (off < slen - 1 && olen < maxolen) { + c1 = char64(s.charAt(off++)); + c2 = char64(s.charAt(off++)); + if (c1 == -1 || c2 == -1) { + break; + } + o = (byte) (c1 << 2); + o |= (c2 & 0x30) >> 4; + out.write(o); + if (++olen >= maxolen || off >= slen) { + break; + } + c3 = char64(s.charAt(off++)); + if (c3 == -1) { + break; + } + o = (byte) ((c2 & 0x0f) << 4); + o |= (c3 & 0x3c) >> 2; + out.write(o); + if (++olen >= maxolen || off >= slen) { + break; + } + c4 = char64(s.charAt(off++)); + o = (byte) ((c3 & 0x03) << 6); + o |= c4; + out.write(o); + ++olen; + } + + return out.toByteArray(); + } + + /** + * Blowfish encipher a single 64-bit block encoded as two 32-bit halves + * + * @param lr an array containing the two 32-bit half blocks + * @param off the position in the array of the blocks + */ + private final void encipher(int lr[], int off) { + int i, n, l = lr[off], r = lr[off + 1]; + + l ^= P[0]; + for (i = 0; i <= BLOWFISH_NUM_ROUNDS - 2; ) { + // Feistel substitution on left word + n = S[(l >> 24) & 0xff]; + n += S[0x100 | ((l >> 16) & 0xff)]; + n ^= S[0x200 | ((l >> 8) & 0xff)]; + n += S[0x300 | (l & 0xff)]; + r ^= n ^ P[++i]; + + // Feistel substitution on right word + n = S[(r >> 24) & 0xff]; + n += S[0x100 | ((r >> 16) & 0xff)]; + n ^= S[0x200 | ((r >> 8) & 0xff)]; + n += S[0x300 | (r & 0xff)]; + l ^= n ^ P[++i]; + } + lr[off] = r ^ P[BLOWFISH_NUM_ROUNDS + 1]; + lr[off + 1] = l; + } + + /** + * Cycically extract a word of key material + * + * @param data the string to extract the data from + * @param offp a "pointer" (as a one-entry array) to the current offset into data + * @return the next word of material from data + */ + private static int streamtoword(byte data[], int offp[]) { + int i; + int word = 0; + int off = offp[0]; + + for (i = 0; i < 4; i++) { + word = (word << 8) | (data[off] & 0xff); + off = (off + 1) % data.length; + } + + offp[0] = off; + return word; + } + + /** + * Initialise the Blowfish key schedule + */ + private void init_key() { + P = (int[]) P_orig.clone(); + S = (int[]) S_orig.clone(); + } + + /** + * Key the Blowfish cipher + * + * @param key an array containing the key + */ + private void key(byte key[]) { + int i; + int koffp[] = {0}; + int lr[] = {0, 0}; + int plen = P.length, slen = S.length; + + for (i = 0; i < plen; i++) { + P[i] = P[i] ^ streamtoword(key, koffp); + } + + for (i = 0; i < plen; i += 2) { + encipher(lr, 0); + P[i] = lr[0]; + P[i + 1] = lr[1]; + } + + for (i = 0; i < slen; i += 2) { + encipher(lr, 0); + S[i] = lr[0]; + S[i + 1] = lr[1]; + } + } + + /** + * Perform the "enhanced key schedule" step described by Provos and Mazieres in + * "A Future-Adaptable Password Scheme" http://www.openbsd.org/papers/bcrypt-paper.ps + * + * @param data salt information + * @param key password information + */ + private void ekskey(byte data[], byte key[]) { + int i; + int koffp[] = {0}, doffp[] = {0}; + int lr[] = {0, 0}; + int plen = P.length, slen = S.length; + + for (i = 0; i < plen; i++) { + P[i] = P[i] ^ streamtoword(key, koffp); + } + + for (i = 0; i < plen; i += 2) { + lr[0] ^= streamtoword(data, doffp); + lr[1] ^= streamtoword(data, doffp); + encipher(lr, 0); + P[i] = lr[0]; + P[i + 1] = lr[1]; + } + + for (i = 0; i < slen; i += 2) { + lr[0] ^= streamtoword(data, doffp); + lr[1] ^= streamtoword(data, doffp); + encipher(lr, 0); + S[i] = lr[0]; + S[i + 1] = lr[1]; + } + } + + static long roundsForLogRounds(int log_rounds) { + if (log_rounds < 4 || log_rounds > 31) { + throw new IllegalArgumentException("Bad number of rounds"); + } + return 1L << log_rounds; + } + + /** + * Perform the central password hashing step in the bcrypt scheme + * + * @param password the password to hash + * @param salt the binary salt to hash with the password + * @param log_rounds the binary logarithm of the number of rounds of hashing to apply + * @return an array containing the binary hashed password + */ + private byte[] crypt_raw(byte password[], byte salt[], int log_rounds) { + int cdata[] = (int[]) bf_crypt_ciphertext.clone(); + int clen = cdata.length; + byte ret[]; + + long rounds = roundsForLogRounds(log_rounds); + + init_key(); + ekskey(salt, password); + for (long i = 0; i < rounds; i++) { + key(password); + key(salt); + } + + for (int i = 0; i < 64; i++) { + for (int j = 0; j < (clen >> 1); j++) { + encipher(cdata, j << 1); + } + } + + ret = new byte[clen * 4]; + for (int i = 0, j = 0; i < clen; i++) { + ret[j++] = (byte) ((cdata[i] >> 24) & 0xff); + ret[j++] = (byte) ((cdata[i] >> 16) & 0xff); + ret[j++] = (byte) ((cdata[i] >> 8) & 0xff); + ret[j++] = (byte) (cdata[i] & 0xff); + } + return ret; + } + + /** + * Hash a password using the OpenBSD bcrypt scheme + * + * @param password the password to hash + * @param salt the salt to hash with (perhaps generated using BCrypt.gensalt) + * @return the hashed password + * @throws IllegalArgumentException if invalid salt is passed + */ + public static String hashpw(String password, String salt) throws IllegalArgumentException { + BCrypt B; + String real_salt; + byte passwordb[], saltb[], hashed[]; + char minor = (char) 0; + int rounds, off = 0; + StringBuilder rs = new StringBuilder(); + + if (salt == null) { + throw new IllegalArgumentException("salt cannot be null"); + } + + int saltLength = salt.length(); + + if (saltLength < 28) { + throw new IllegalArgumentException("Invalid salt"); + } + + if (salt.charAt(0) != '$' || salt.charAt(1) != '2') { + throw new IllegalArgumentException("Invalid salt version"); + } + if (salt.charAt(2) == '$') { + off = 3; + } else { + minor = salt.charAt(2); + if (minor != 'a' || salt.charAt(3) != '$') { + throw new IllegalArgumentException("Invalid salt revision"); + } + off = 4; + } + + if (saltLength - off < 25) { + throw new IllegalArgumentException("Invalid salt"); + } + + // Extract number of rounds + if (salt.charAt(off + 2) > '$') { + throw new IllegalArgumentException("Missing salt rounds"); + } + rounds = Integer.parseInt(salt.substring(off, off + 2)); + + real_salt = salt.substring(off + 3, off + 25); + try { + passwordb = (password + (minor >= 'a' ? "\000" : "")).getBytes("UTF-8"); + } catch (UnsupportedEncodingException uee) { + throw new AssertionError("UTF-8 is not supported"); + } + + saltb = decode_base64(real_salt, BCRYPT_SALT_LEN); + + B = new BCrypt(); + hashed = B.crypt_raw(passwordb, saltb, rounds); + + rs.append("$2"); + if (minor >= 'a') { + rs.append(minor); + } + rs.append("$"); + if (rounds < 10) { + rs.append("0"); + } + rs.append(rounds); + rs.append("$"); + encode_base64(saltb, saltb.length, rs); + encode_base64(hashed, bf_crypt_ciphertext.length * 4 - 1, rs); + return rs.toString(); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method + * + * @param log_rounds the log2 of the number of rounds of hashing to apply - the work + * factor therefore increases as 2**log_rounds. Minimum 4, maximum 31. + * @param random an instance of SecureRandom to use + * @return an encoded salt value + */ + public static String gensalt(int log_rounds, java.security.SecureRandom random) { + if (log_rounds < MIN_LOG_ROUNDS || log_rounds > MAX_LOG_ROUNDS) { + throw new IllegalArgumentException("Bad number of rounds"); + } + StringBuilder rs = new StringBuilder(); + byte rnd[] = new byte[BCRYPT_SALT_LEN]; + + random.nextBytes(rnd); + + rs.append("$2a$"); + if (log_rounds < 10) { + rs.append("0"); + } + rs.append(log_rounds); + rs.append("$"); + encode_base64(rnd, rnd.length, rs); + return rs.toString(); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method + * + * @param log_rounds the log2 of the number of rounds of hashing to apply - the work + * factor therefore increases as 2**log_rounds. Minimum 4, maximum 31. + * @return an encoded salt value + */ + public static String gensalt(int log_rounds) { + return gensalt(log_rounds, new SecureRandom()); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method, selecting a reasonable + * default for the number of hashing rounds to apply + * + * @return an encoded salt value + */ + public static String gensalt() { + return gensalt(GENSALT_DEFAULT_LOG2_ROUNDS); + } + + /** + * Check that a plaintext password matches a previously hashed one + * + * @param plaintext the plaintext password to verify + * @param hashed the previously-hashed password + * @return true if the passwords match, false otherwise + */ + public static boolean checkpw(String plaintext, String hashed) { + return equalsNoEarlyReturn(hashed, hashpw(plaintext, hashed)); + } + + static boolean equalsNoEarlyReturn(String a, String b) { + char[] caa = a.toCharArray(); + char[] cab = b.toCharArray(); + + if (caa.length != cab.length) { + return false; + } + + byte ret = 0; + for (int i = 0; i < caa.length; i++) { + ret |= caa[i] ^ cab[i]; + } + return ret == 0; + } + } +}