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【jceks】使用keytool和hadoop credential生成和解析jceks文件（无密码storepass）

news 来源：原创 2025/4/29 9:03:18

build.gradle文件：

plugins {id 'org.jetbrains.kotlin.jvm' version '1.9.23'
}group = 'com.xxx.test'
version = '1.0-SNAPSHOT'repositories {mavenCentral()
}dependencies {implementation("org.apache.hadoop:hadoop-common:3.0.0")testImplementation 'org.jetbrains.kotlin:kotlin-test'
}test {useJUnitPlatform()
}
kotlin {jvmToolchain(8)
}

koltin语言编写。
ranger中的org.apache.ranger.credentialapi.CredentialReader工具类：

import org.apache.commons.lang3.StringUtils
import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.security.alias.CredentialProvider.CredentialEntry
import org.apache.hadoop.security.alias.CredentialProviderFactory
import org.apache.hadoop.security.alias.JavaKeyStoreProvider
import java.util.*object CredentialReader {fun getDecryptedString(CrendentialProviderPath: String?, alias: String?, storeType: String?): String? {var CrendentialProviderPath = CrendentialProviderPathvar alias = aliasvar credential: String? = nulltry {if (CrendentialProviderPath == null || alias == null) {return null}var pass: CharArray? = nullval conf = Configuration()var crendentialProviderPrefixJceks = JavaKeyStoreProvider.SCHEME_NAME + "://file"val crendentialProviderPrefixLocalJceks = "localjceks://file"crendentialProviderPrefixJceks = crendentialProviderPrefixJceks.lowercase(Locale.getDefault())var crendentialProviderPrefixBcfks = "bcfks" + "://file"var crendentialProviderPrefixLocalBcfks = "localbcfks" + "://file"crendentialProviderPrefixBcfks = crendentialProviderPrefixBcfks.lowercase(Locale.getDefault())crendentialProviderPrefixLocalBcfks = crendentialProviderPrefixLocalBcfks.lowercase(Locale.getDefault())CrendentialProviderPath = CrendentialProviderPath.trim { it <= ' ' }alias = alias.trim { it <= ' ' }if (CrendentialProviderPath.lowercase(Locale.getDefault()).startsWith(crendentialProviderPrefixJceks) ||CrendentialProviderPath.lowercase(Locale.getDefault()).startsWith(crendentialProviderPrefixLocalJceks) ||CrendentialProviderPath.lowercase(Locale.getDefault()).startsWith(crendentialProviderPrefixBcfks) ||CrendentialProviderPath.lowercase(Locale.getDefault()).startsWith(crendentialProviderPrefixLocalBcfks)) {conf[CredentialProviderFactory.CREDENTIAL_PROVIDER_PATH] = CrendentialProviderPath} else {if (CrendentialProviderPath.startsWith("/")) {if (StringUtils.equalsIgnoreCase(storeType, "bcfks")) {conf[CredentialProviderFactory.CREDENTIAL_PROVIDER_PATH] = CrendentialProviderPath} else {conf[CredentialProviderFactory.CREDENTIAL_PROVIDER_PATH] =JavaKeyStoreProvider.SCHEME_NAME + "://file" + CrendentialProviderPath}} else {conf[CredentialProviderFactory.CREDENTIAL_PROVIDER_PATH] =JavaKeyStoreProvider.SCHEME_NAME + "://file/" + CrendentialProviderPath}}val providers = CredentialProviderFactory.getProviders(conf)var aliasesList: List<String?> = ArrayList()var credEntry: CredentialEntry? = nullfor (provider in providers) {//System.out.println("Credential Provider :" + provider);aliasesList = provider.aliasesif (aliasesList != null && aliasesList.contains(alias.lowercase(Locale.getDefault()))) {credEntry = nullcredEntry = provider.getCredentialEntry(alias.lowercase(Locale.getDefault()))pass = credEntry.credentialif (pass != null && pass.size > 0) {credential = String(pass)break}}}} catch (ex: Exception) {ex.printStackTrace()credential = null}return credential}
}

测试案例：

import org.junit.jupiter.api.Test
class CredentialReaderTest {val storeType = "jceks"@Testfun testDecrypted() {var path: String = "D:\\projects\\CredientialReader\\src\\test\\resources\\rangeradmin.jceks"path=path.replace("\\","/")val alias: String = "unixauthtruststorealias"val cred = CredentialReader.getDecryptedString(path, alias, storeType)println(cred) // success: somepassword}/*** method: 1, using `keytool` command!* [root@ranger conf]# keytool -importpass -alias ranger -storetype jceks -keystore tmp.jceks* Enter keystore password:* Re-enter new password:* Enter the password to be stored:* Re-enter password:* Enter key password for <ranger>*         (RETURN if same as keystore password):** [root@ranger conf]# keytool -list -v -storetype jceks -keystore tmp.jceks* Enter keystore password:* Keystore type: JCEKS* Keystore provider: SunJCE** Your keystore contains 1 entry** Alias name: ranger* Creation date: Apr 28, 2025* Entry type: SecretKeyEntry*/@Testfun testDecryptedTmp() {// failed : java.io.IOException: Keystore was tampered with, or password was incorrectvar path: String = "D:\\projects\\CredientialReader\\src\\test\\resources\\tmp.jceks"path=path.replace("\\","/")val alias: String = "ranger"val cred = CredentialReader.getDecryptedString(path, alias, storeType)println(cred)}/*** method: 2, using `hadoop credential` command* hadoop credential create -help* hadoop credential create ranger  -value 999 -provider localjceks:///home/someone/hdp.jceks* hdfs hdfs -copyToLocal /home/someone/hdp.jceks .* Note: "localjceks://file" is fixed,"/home/someone/hdp.jceks" is real path* hadoop credential create ranger  -value 999 -provider localjceks://file/home/someone/hdp.jceks* keytool -list -v -storetype jceks -keystore hdp.jceks* 999*/@Testfun testDecryptedHdp() {// success: 999var path: String = "D:\\projects\\CredientialReader\\src\\test\\resources\\hdp.jceks"path=path.replace("\\","/")val alias: String = "ranger"val cred = CredentialReader.getDecryptedString(path, alias, storeType)println(cred)}
}