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2022-07-15 10:00
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java SHA256WithRSA 转C#

求大师java SHA256WithRSA 以下代码 转C#
签名规则:
(1)、将参数key以ASCII码表顺序排序
 (2)、以key1=value1&key2=value2的方式拼接签名字符串,其中剔除空值和sign字段
 (3)、以sha256算法对签名字符串进行哈希得到hash
(4)、用RSASSA-PKCS1-V1_5-SIGN对hash进行签名

问题相关代码

(1)、将参数key以ASCII码表顺序排序
(2)、以key1=value1&key2=value2的方式拼接签名字符串,其中剔除空值和sign字段
(3)、以sha256算法对签名字符串进行哈希得到hash
(4)、用RSASSA-PKCS1-V1_5-SIGN对hash进行签名
转成.net代码

package com.inspur.icity;

import org.json.JSONObject;

import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SignatureException;
import java.security.spec.InvalidKeySpecException;
import java.util.*;

public class AuthUtil {

private static final String BASE_URL = "https://app.zwfw.nmg.goc.cn:4443";


public static class AuthToken {
    private String token;
    private String refreshToken;
    private Date tokenExpiredTime;
    private Date refreshTokenExpiredTime;
    private String openId;


    public AuthToken() {
    }

    public String getToken() {
        return token;
    }

    public void setToken(String token) {
        this.token = token;
    }

    public String getRefreshToken() {
        return refreshToken;
    }

    public void setRefreshToken(String refreshToken) {
        this.refreshToken = refreshToken;
    }

    public Date getTokenExpiredTime() {
        return tokenExpiredTime;
    }

    public void setTokenExpiredTime(Date tokenExpiredTime) {
        this.tokenExpiredTime = tokenExpiredTime;
    }

    public Date getRefreshTokenExpiredTime() {
        return refreshTokenExpiredTime;
    }

    public void setRefreshTokenExpiredTime(Date refreshTokenExpiredTime) {
        this.refreshTokenExpiredTime = refreshTokenExpiredTime;
    }

    public String getOpenId() {
        return openId;
    }

    public void setOpenId(String openId) {
        this.openId = openId;
    }

}

public static class UserFaceInfo {
    private String realName;
    private String idCard;
    private String openId;
    private String faceUrl;

    public String getRealName() {
        return realName;
    }

    public void setRealName(String realName) {
        this.realName = realName;
    }

    public String getIdCard() {
        return idCard;
    }

    public void setIdCard(String idCard) {
        this.idCard = idCard;
    }

    public String getOpenId() {
        return openId;
    }

    public void setOpenId(String openId) {
        this.openId = openId;
    }

    public String getFaceUrl() {
        return faceUrl;
    }

    public void setFaceUrl(String faceUrl) {
        this.faceUrl = faceUrl;
    }
}

public static class UserAuthInfo {
    private String realName;
    private String idCard;
    private String openId;
    private String checkPhone;
    private String mobilePhone;


    public String getMobilePhone() {
        return mobilePhone;
    }

    public void setMobilePhone(String mobilePhone) {
        this.mobilePhone = mobilePhone;
    }

    public String getOpenId() {
        return openId;
    }

    public void setOpenId(String openId) {
        this.openId = openId;
    }

    public String getCheckPhone() {
        return checkPhone;
    }

    public void setCheckPhone(String checkPhone) {
        this.checkPhone = checkPhone;
    }


    public String getRealName() {
        return realName;
    }

    public void setRealName(String realName) {
        this.realName = realName;
    }

    public String getIdCard() {
        return idCard;
    }

    public void setIdCard(String idCard) {
        this.idCard = idCard;
    }
}

/**
 * 使用code 获取token
 *
 * @param appId      应用appId
 * @param code       获取到的code
 * @param privateKey 应用私钥
 * @return AuthToken
 * @throws Exception 签名失败或者返回值出错
 */

public static AuthToken getTokenByCode(String appId, String code, String privateKey) throws Exception {
    Map<String, String> params = new HashMap<>();
    params.put("app_id", appId);
    params.put("code", code);
    params.put("grant_type", "authorization_code");

    params.put("sign", getSign(params, privateKey));

    String res = OkHttp3ClientUtil.getInstance().postSync(BASE_URL + "/icity/auth2.0/token", null, params);
    return parseAuthTokenResult(res);
}


public static AuthToken getServiceToken(String appId, String privateKey) throws Exception {
    Map<String, String> params = new HashMap<>();
    params.put("app_id", appId);
    params.put("grant_type", "service_token");

    params.put("sign", getSign(params, privateKey));

    String res = OkHttp3ClientUtil.getInstance().postSync(BASE_URL + "/icity/auth2.0/token", null, params);
    return parseAuthTokenResult(res);
}


/**
 * 使用refresh_token刷新token
 * refresh_token存在过期的情况,调用者应处理refresh_token过期时的 TokenExpiredException
 *
 * @param appId        应用appId
 * @param refreshToken 之前获取的refresh_token
 * @param privateKey   应用私钥
 * @return AuthToken
 * @throws Exception
 */
public static AuthToken refreshToken(String appId, String refreshToken, String privateKey) throws Exception {
    Map<String, String> params = new HashMap<>();
    params.put("app_id", appId);
    params.put("grant_type", "refresh_token");
    params.put("refresh_token", refreshToken);

    params.put("sign", getSign(params, privateKey));
    String res = OkHttp3ClientUtil.getInstance().postSync(BASE_URL + "/icity/auth2.0/token", null, params);
    JSONObject result = new JSONObject(res);
    if (result.optInt("code") == 1008) {
        throw new TokenExpiredException("refresh_token已过期");
    }
    return parseAuthTokenResult(res);
}


/**
 * 当使用token获取用户信息时候,token存在过期的情况,如果token过期
 * 此时应重新授权,获取使用refresh_token刷新,
 * 调用者应处理token过期时的 TokenExpiredException
 */
public static UserAuthInfo getUserAuthInfo(String appId, String token, String privateKey) throws Exception {
    Map<String, String> params = getRequestInfoParams(appId, token, privateKey);
    String res = OkHttp3ClientUtil.getInstance().getSync(BASE_URL + "/icity/auth2.0/get_user_info", null, params);
    System.out.println(res);
    JSONObject result = new JSONObject(res);
    int code = result.optInt("code");
    if (code == 1000) {
        JSONObject data = result.optJSONObject("data");
        JSONObject authInfo = data.getJSONObject("auth_info");
        UserAuthInfo userAuthInfo = new UserAuthInfo();
        userAuthInfo.setIdCard(authInfo.optString("id_card"));
        userAuthInfo.setRealName(authInfo.optString("real_name"));
        userAuthInfo.setCheckPhone(authInfo.optString("check_phone"));
        userAuthInfo.setMobilePhone(authInfo.optString("mobile_phone"));
        userAuthInfo.setOpenId(authInfo.optString("open_id"));
        return userAuthInfo;
    } else if (code == 1008) {//token已过期
        throw new TokenExpiredException("token已过期");
    } else {
        throw new Exception("getUserFaceAuthInfo error,result " + res);
    }
}



private static Map<String, String> getRequestInfoParams(String appId, String token, String privateKey) throws NoSuchAlgorithmException, InvalidKeySpecException, InvalidKeyException, SignatureException {
    Map<String, String> params = new HashMap<>();
    params.put("app_id", appId);
    params.put("auth_token", token);

    params.put("sign", getSign(params, privateKey));
    return params;
}

private static AuthToken parseAuthTokenResult(String res) throws Exception {
    JSONObject result = new JSONObject(res);
    System.out.println(res);
    if (result.optInt("code") == 1000) {
        JSONObject data = result.optJSONObject("data");
        JSONObject authTokenJson = data.optJSONObject("auth_token");
        AuthToken authToken = new AuthToken();
        authToken.setToken(authTokenJson.optString("auth_token"));
        authToken.setRefreshToken(authTokenJson.optString("refresh_token"));
        authToken.setTokenExpiredTime(new Date(authTokenJson.optLong("token_expired_time")));
        authToken.setRefreshTokenExpiredTime(new Date(authTokenJson.optLong("refresh_token_expired_time")));
        authToken.setOpenId(authTokenJson.optString("open_id"));
        return authToken;
    } else {
        throw new Exception("get token by code error,result is :" + res);
    }
}


public static String getSign(Map<String, String> params, String privateKey) throws NoSuchAlgorithmException, InvalidKeySpecException, InvalidKeyException, SignatureException {
    List<String> keys = new ArrayList<>();
    for (String k : params.keySet()) {
        if (params.get(k) != null && params.get(k).length() > 0) {
            keys.add(k);
        }
    }
    Collections.sort(keys);
    StringBuilder signBuilder = new StringBuilder();
    int count = 0;
    for (String k : keys) {
        if (count > 0) {
            signBuilder.append("&");
        }
        signBuilder.append(k);
        signBuilder.append("=");
        signBuilder.append(params.get(k));
        count++;
    }
    return RsaSignUtil.sign(privateKey, signBuilder.toString());
}

}

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