Online SHA1 Hash Generator

I need to RSA sign some data using a combination of the MD5 and SHA1 hashes. I can easily do this for just one or the other but having a combination makes it tricky. It's for the certificate verify message in DTLS 1.0, so it's not like I can just choose to do just one unfortunately.

I believe the steps to be to hash in MD5, then hash in SHA1 and concatenate. Then I need to encrypt with the private key. That's where I'm stuck.

I have an RSACryptoServiceProvider that has the proper private key (it's not exportable). I know I cannot do

rsa.SignHash(hash, HashAlgorithmName.SHA1, RSASignaturePadding.Pkcs1);

because it's not just a SHA1 hash so this function sees the hash as invalid since it's 36 bytes instead of 20 bytes as expected.

I also know I cannot do

rsa.SignData(hash, HashAlgorithmName.SHA1, RSASignaturePadding.Pkcs1);

because that's going to hash again.

I believe I'm closer with

rsa.Encrypt(hash, RSAEncryptionPadding.Pkcs1);

however that's using the public key instead of the private key like I need.

Any suggests on how I can either encrypt with the private key or do the signing with MD5+SHA1?

I am obtaining a Google Play API key from Google, and it is asking to enter SHA1 fingerprint. I want to know what is SHA1 fingerprint? I also wanted to know weather this API key can be used from another computer/pc?

An SHA-1 code is readily available thru net but in the case of aforgotten password, how can a hashed one be reversed given this code?

please see link for SHA1 Code

I'm writing a test class for a keystore reading java class. But when I compare expected string with actual string from my test class, It gives below error.

org.opentest4j.AssertionFailedError: <Click to see difference>    at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:52)    at org.junit.jupiter.api.AssertEquals.failNotEqual(AssertEquals.java:197)    at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:186)    at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:181)    at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:486)    at KeyStoreReadUtilTest.readAllCertificates(KeyStoreReadUtilTest.java:29)    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.base/java.lang.reflect.Method.invoke(Method.java:566)    at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:436)    at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:115)    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:170)    at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:166)    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:113)    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:58)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:112)    at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:120)    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)    at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)    at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)    at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)    at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)    at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)    at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)    at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)    at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:120)    at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:120)    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)    at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)    at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)    at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)    at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)    at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)    at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)    at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)    at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:120)    at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:55)    at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)    at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:69)    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

I'm using IntelliJ IDEA Community Edition and when I click the "Click to see difference" link in above error it says both strings are identical. When I checked 2 strings in "https://www.diffchecker.com/" online tool, it also says that both string are same. Still I find a solution for this error.Below I included my KeyStore read class.

package util;import java.io.File;import java.io.FileInputStream;import java.security.KeyStore;import java.security.cert.Certificate;import java.util.Base64;import java.util.Enumeration;public class KeyStoreReadUtil {    private FileInputStream fileInputStream;    private KeyStore keystore;    private Enumeration enumeration;    private String certificatePrefix;    private String certificatePostfix;    public KeyStoreReadUtil(File inputKeystoreFile, String keystorePassword) throws Exception {        fileInputStream = new FileInputStream(inputKeystoreFile);        char[] keystorePasswordAsCharArray = keystorePassword.toCharArray();        keystore = KeyStore.getInstance("PKCS12");        keystore.load(fileInputStream, keystorePasswordAsCharArray);        enumeration = keystore.aliases();        certificatePrefix = "\n==============================BEGIN CERTIFICATE==============================";        certificatePostfix = "\n===============================END CERTIFICATE==============================\n";    }    public String readCertificates() throws Exception{        String readings = "";        while (enumeration.hasMoreElements()){            String alias = (String) enumeration.nextElement();            readings += readCertificates(alias);        }        return readings;    }    public String readCertificates(String alias) throws Exception{        Certificate certificate = keystore.getCertificate(alias);        byte[] encodedCertificateKey = certificate.getEncoded();        String b64CertificateKey = "\nAlias:\t" + alias + "\n" + Base64.getMimeEncoder().encodeToString(encodedCertificateKey);        String certificateKeyString = certificatePrefix + b64CertificateKey + certificatePostfix;        return certificateKeyString;    }}

Below I included my test class.

import org.junit.jupiter.api.Test;import util.KeyStoreReadUtil;import java.io.File;import java.nio.file.Files;import java.nio.file.Path;import java.nio.file.Paths;import org.apache.commons.codec.digest.DigestUtils;import static org.junit.jupiter.api.Assertions.assertEquals;public class KeyStoreReadUtilTest {    private KeyStoreReadUtil keyStoreReadUtil;    private KeyStoreReadUtilTest() throws Exception{        File keystoreFile = new File("src/test/java/testKeystore.p12");        keyStoreReadUtil = new KeyStoreReadUtil(keystoreFile, "pass123");    }    @Test    void readAllCertificates() throws Exception{        String resultString = keyStoreReadUtil.readCertificates();        String result = DigestUtils.sha1Hex(resultString);        Path expectedResultFile = Paths.get("src/test/java/readAllCertificatesExpected.txt");        String expectedString = Files.readString(expectedResultFile);        String expected = DigestUtils.sha1Hex(expectedString);//        assertEquals(expected, result);        assertEquals(expectedString, resultString);    }}

In test class I take expected result from a .txt file. Below I included content of that text file.

==============================BEGIN CERTIFICATE==============================Alias:  sftpkeyMIIDfzCCAmegAwIBAgIEeSu3RDANBgkqhkiG9w0BAQsFADBwMQswCQYDVQQGEwJMSzELMAkGA1UECBMCV1AxEDAOBgNVBAcTB0NvbG9tYm8xGjAYBgNVBAoTEUNyZWF0aXZlIFNvZnR3YXJlMQ8wDQYDVQQLEwZQYWdlcm8xFTATBgNVBAMMDER1c2h5YW50aGFfMzAeFw0xOTA5MzAwNDA5NDFaFw0xOTEyMjkwNDA5NDFaMHAxCzAJBgNVBAYTAkxLMQswCQYDVQQIEwJXUDEQMA4GA1UEBxMHQ29sb21ibzEaMBgGA1UEChMRQ3JlYXRpdmUgU29mdHdhcmUxDzANBgNVBAsTBlBhZ2VybzEVMBMGA1UEAwwMRHVzaHlhbnRoYV8zMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4IdzRnOkZOErqr2WJCRoOSKhtDLRvGn4zhT/+b53aYsL8vC9ItLSWdgQ4Jb3Gup6clU7/+gKl553BuDe/2Ckym4RRdtwqNH4BW2mv6hLVu7SdUaOyYvh8wQuBv1BFXRj1Lg0+q6r9+qNfnGglAy7WYTKUQdppnm9PnC6zETzNBaodN2Ks+kvrj9yU6zenlHxXkCYIFOjWYGTsZ0ny7MY3d0cTyKocNqpnMXjB9n2RDSP9LNIj5p1km8RSf47wyV69EaQm0R8NToIvt2aDqs6hlomovlhrwac52R2nW06xZ2ek99lusXHh9Fb3wN3lRhUt42ixAzh9jowHKr6UWYBOwIDAQABoyEwHzAdBgNVHQ4EFgQUDZ53d6xHv0RvbLXQnuJub+EtX6EwDQYJKoZIhvcNAQELBQADggEBAC39tfBpRu6Y70njXAB2CCR8+zet6BE2zkM+7vkWFgViV6Emf20fcRcxB4AAa0juydCgC/MofrwSqm7QvNoNEp3XNWCH1eSBmv5zJmItzTHtgpAJiF76BoEWB8A+HkCMNOxw//iuomJ5xNFPtZtHhi2CvMG6Bp7O6XEf5guIDxjOpQ4bxxJ2sBJUye5FnXe44+CHsMfuUVVOb6jsyQsQmd9d5QQM6HHkrx1YifZ/b9t1E35jPnc+TVcEYYe8je+c796l27b18k6IeaFeIu+8uPakm1bmqWTydlTXkY2/RVcM0R+Q0AvPRl50vP6z1gePj9N+GogDi0u0OMKg/C7kg48================================END CERTIFICATE============================================================BEGIN CERTIFICATE==============================Alias:  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=============================END CERTIFICATE==============================

I am using the Google Maps Android API and I'm running into some issues.

I am signing my apk with android studio (created one at .android/keystore.jks). Also I'm selecting "release" as type in it. I have used the command

keytool -list -v -keystore C:\Users\Toshiba\.android\keystore.jks

to get the SHA1 fingerprint out of the keystore.

The SHA1 is correct, but the Map is not shown on a signed APK. It is shown in a debug APK.

Using keytool with the release keystore (keystore.jks) will get me this:

 SHA1: 33:46:07:82:5B:D4:45:D2:60:CE:5A:29:97:9F:6C:44:XX:XX:XX:XX

The debug one works fine (I have added 2 to the API console in Google)

33:46:07:82:5B:D4:45:D2:60:CE:5A:29:97:9F:6C:44:XX:XX:XX:XX;yac.breakingpoint7C:28:61:5B:C3:4A:5C:50:44:AA:FD:58:69:E9:70:91:XX:XX:XX:XX;yac.breakingpoint

XX is blacked out.

The keytool says it is using SHA256withRSA as signature algorithm for both, the debug and the release keystore.

What am I doing wrong?

UPDATESo I've tried a new API key, clean project and rebuild it, new keystore - still not working on release... debug is fine!

UPDATE 2Still not found a working solution... Help me!

UPDATE 3 Allright, got it working using a signed APK with build type debug. Extracted the CERT.RSA and runned keytool -printcert -file ./CERT.SA. Got the same result as for the release build type. In release it is not working!

UPDATE 4Here's another try I made:

• Created a new GIT Repository, commited to it.
• The /buildfolders are not beeing commited since they are in the .gitignore files.
• Created a new API key in the API console and added only the release SHA1 key to it.
• Added that API key to the app and made a full clean with rebuild.
• Generated a new signed APK file

It did not work.

UPDATE 5 A friend of mine tried to reproduce this issue. He has the exact same issue when working with android studio. Probably a android studio bug?