Your Browser Failed To Generate A Key

Setting up public key authentication Generate an SSH Key Copy the key to a server Test the new key Troubleshooting How ssh-copy-id works Some best practices for SSH keys Use a passphrase when possible Add a command restriction when possible Managing SSH keys Command-line options Ssh-copy-id on Mac Installation using Homebrew Installation from. TLDR; To enable Google Maps support in your AppGini apps, you need to enable Maps Embed API and Maps Static API in your Google Cloud console, create an API key and copy it to AppGini. Obtaining a Google API key can be quite challenging due to the complex, ever. Find Safari in the Applications folder through the Finder. Select it by clicking on it once. Go to File Get Info. Under 'General', make sure Open using Rosetta is NOT checked. If it is, uncheck it, quit out of Safari and start it up again. And, when you change your AT&T email password, you won’t need to get a new secure mail key. Keep your secure mail key as long as you like Secure mail keys never expire. Create a new secure mail key for a blocked or locked account For safety reasons, we delete secure mail keys whenever we have to lock or block your account. Mar 31, 2020  A window opens where you can configure your key-generation settings. Click Generate and follow the on-screen instructions to generate a new key. For most cases, the default parameters are fine, but you must generate keys with at least 2,048 bits. When you have finished generating the key, the tool displays your public key value. Jul 28, 2016 HOW TO Become a contributor Create an article Comment on an article Add a term to the Glossary HELP Contact the Knowledge Base team Contact the Help Desk Search the archive Glossary of MIT IT terms BLOGS IS&T News.

Jul 09, 2019 Public Key Infrastructure (PKI) security is about using two unique keys: the Public Key is encrypted within your SSL Certificate, while the Private Key is generated on your server and kept secret. All the information sent from a browser to a website server is encrypted with the Public Key, and gets decrypted on the server side with the Private Key.

-->

Deleting and recreating encryption keys are activities that fall outside of routine encryption key maintenance. You perform these tasks in response to a specific threat to your report server, or as a last resort when you can no longer access a report server database.

  • Recreate the symmetric key when you believe the existing symmetric key is compromised. You can also recreate the key on a regular basis as a security best practice.

  • Delete existing encryption keys and unusable encrypted content when you cannot restore the symmetric key.

Recreating Encryption Keys

If you have evidence that the symmetric key is known to unauthorized users, or if your report server has been under attack and you want to reset the symmetric key as a precaution, you can recreate the symmetric key. When you recreate the symmetric key, all encrypted values will be re-encrypted using the new value. If you are running multiple report servers in a scale-out deployment, all copies of the symmetric key will be updated to the new value. The report server uses the public keys available to it to update the symmetric key for each server in the deployment.

You can only recreate the symmetric key when the report server is in a working state. Recreating the encryption keys and re-encrypting content disrupts server operations. You must take the server offline while re-encryption is underway. There should be no requests made to the report server during re-encryption.

You can use the Reporting Services Configuration tool or the rskeymgmt utility to reset the symmetric key and encrypted data. For more information about how the symmetric key is created, see Initialize a Report Server (SSRS Configuration Manager).

How to recreate encryption keys (Reporting Services Configuration Tool)

  1. Disable the Report Server Web service and HTTP access by modifying the IsWebServiceEnabled property in the rsreportserver.config file. This step temporarily stops authentication requests from being sent to the report server without completely shutting down the server. You must have minimal service so that you can recreate the keys.

    If you are recreating encryption keys for a report server scale-out deployment, disable this property on all instances in the deployment.

    1. Open Windows Explorer and navigate to drive:Program FilesMicrosoft SQL Serverreport_server_instanceReporting Services. Replace drive with your drive letter and report_server_instance with the folder name that corresponds to the report server instance for which you want to disable the Web service and HTTP access. For example, C:Program FilesMicrosoft SQL ServerMSRS10_50.MSSQLSERVERReporting Services.

    2. Open the rsreportserver.config file.

    3. For the IsWebServiceEnabled property, specify False, and then save your changes.

  2. Start the Reporting Services Configuration tool, and then connect to the report server instance you want to configure.

  3. On the Encryption Keys page, click Change. Click OK.

  4. Restart the Report Server Windows service. If you are recreating encryption keys for a scale-out deployment, restart the service on all instances.

  5. Re-enable the Web service and HTTP access by modifying the IsWebServiceEnabled property in the rsreportserver.config file. Do this for all instances if you are working with a scale out deployment.

How to recreate encryption keys (rskeymgmt)

  1. Disable the Report Server Web service and HTTP access. Use the instructions in the previous procedure to stop Web service operations.

  2. Run rskeymgmt.exe locally on the computer that hosts the report server. Use the -s argument to reset the symmetric key. No other arguments are required:

  3. Restart the Reporting Services Windows service.

Deleting Unusable Encrypted Content

If for some reason you cannot restore the encryption key, the report server will never be able to decrypt and use any data that is encrypted with that key. To return the report server to a working state, you must delete the encrypted values that are currently stored in the report server database and then manually re-specify the values you need.

Deleting the encryption keys removes all symmetric key information from the report server database and deletes any encrypted content. All unencrypted data is left intact; only encrypted content is removed. When you delete the encryption keys, the report server re-initializes itself automatically by adding a new symmetric key. The following occurs when you delete encrypted content:

  • Connection strings in shared data sources are deleted. Users who run reports get the error 'The ConnectionString property has not been initialized.'

  • Stored credentials are deleted. Reports and shared data sources are reconfigured to use prompted credentials.

  • Reports that are based on models (and require shared data sources configured with stored or no credentials) will not run.

  • Subscriptions are deactivated.

Your Browser Failed To Generate A Key Download

Once you delete encrypted content, you cannot recover it. You must re-specify connection strings and stored credentials, and you must activate subscriptions.

You can use the Reporting Services Configuration tool or the rskeymgmt utility to remove the values.

How to delete encryption keys (Reporting Services Configuration Tool)

  1. Start the Reporting Services Configuration tool, and then connect to the report server instance you want to configure.

  2. Click Encryption Keys, and then click Delete. Click OK.

  3. Restart the Report Server Windows service. For a scale-out deployment, do this on all report server instances.

How to delete encryption keys (rskeymmgt)

  1. Run rskeymgmt.exe locally on the computer that hosts the report server. You must use the -d apply argument. The following example illustrates the argument you must specify:

  2. Restart the Report Server Windows service. For a scale-out deployment, do this on all report server instances.

How to re-specify encrypted values

  1. For each shared data source, you must retype the connection string.

  2. For each report and shared data source that uses stored credentials, you must retype the user name and password, and then save. For more information, see Specify Credential and Connection Information for Report Data Sources.

  3. For each data-driven subscription, open each subscription and retype the credentials to the subscription database.

  4. For subscriptions that use encrypted data (this includes the File Share delivery extension and any third-party delivery extension that uses encryption), open each subscription and retype credentials. Subscriptions that use Report Server e-mail delivery do not use encrypted data and are unaffected by the key change.

See Also

Configure and Manage Encryption Keys (SSRS Configuration Manager)
Store Encrypted Report Server Data (SSRS Configuration Manager)

-->

by Kaushal Kumar Panday

Tools Used in this Troubleshooter:

  • SSLDiag
  • Network Monitor 3.4/Wireshark

This material is provided for informational purposes only. Microsoft makes no warranties, express or implied.

Your Browser Failed To Generate A Key

Overview

This document will help you in troubleshooting SSL issues related to IIS only. Client Certificates troubleshooting will not be covered in this document. Server Certificates are meant for Server Authentication and we will be dealing only with Server Certificates in this document.

If the Client certificates section is set to 'Require' and then you run into issues, then please don't refer this document. This is meant for troubleshooting SSL Server certificates issue only.

It is important to know that every certificate comprises of a public key (used for encryption) and a private key (used for decryption). The private key is known only to the server.

The default port for https is 443.

I am under the assumption the reader is well-versed in SSL Handshake and the Server Authentication process during the SSL handshake.

Description of the Secure Sockets Layer (SSL) Handshake:

Description of the Server Authentication Process during the SSL Handshake:

Scenarios

The following error message is seen while browsing the website over https:

The first thing that has to be checked is whether the website is accessible over http. If it is not, there likely is a separate issue not covered here. You will need to have the website working on http first before continuing with this troubleshooter.

Your Browser Failed To Generate A Key Number

Now let's assume the website is accessible over http and we get the above error when trying to browse over https. The problem is seen because the SSL handshake failed and hence the error message was seen. There could be many reasons. We will follow a step-by-step approach to solve this problem.

Scenario 1

Check if the server certificate has the private key corresponding to it. Refer the below picture:

If private key is missing, then you need to get a certificate containing the private key, which is essentially a .PFX file. There is a command that we could try to run in order to associate the private key with the certificate:

If the association is successful, then you would see the following window:

Note: 1a 1f 94 8b 21 a2 99 36 77 a8 8e b2 3f 42 8c 7e 47 e3 d1 33 is the thumbprint of the certificate. Open the certificate and click on the details tab. Scroll down to find the thumbprint section. Select the thumbprint section and click on the text below. Do a 'Ctrl+A' and then 'Ctrl+C' to select and copy it. Below is a snapshot for your reference:

Note: This command doesn't succeed always. If this fails, then you need to get a certificate containing the private key from the CA. The file extension for a certificate containing private key is .pfx.

Scenario 2

We went pass the first hurdle and now we have a server certificate containing the private key installed on the website. However, we still get the same error as above. The website is still not accessible over https.

The SSLDiag tool comes in handy here.

Windows Server 2003:

For IIS 7 and IIS 7.5, use vijaysk's SSL Diagnostics tool. Below is the link:

Install the tool and run it on the server. If you have a certificate containing private key and still not able to access the website, then you may want to run this tool or check the system event logs for SChannel related warnings/errors.

While running the SSLDiag tool you may get the following error:

You have a private key that corresponds to this certificate but CryptAcquireCertificatePrivateKey failed

There will also be a SChannel warning in the system event logs as shown below:

Event Type: Error
Event Source: Schannel
Event Category: None
Event ID: 36870
Date: 2/11/2012
Time: 12:44:55 AM
User: N/A
Computer:
Description: A fatal error occurred when attempting to access the SSL server credential private key. The error code returned from the cryptographic module is 0x80090016.

This event/error indicates that there was a problem acquiring certificate's private key. So let's try the below steps one by one:

  • Firstly, verify the permissions on the machinekeys folder as per the KB Article: https://support.microsoft.com/kb/278381. All the private keys are stored within the machinekeys folder, so we need to ensure that we have necessary permissions.

  • If the permissions are in place and if the issue is still not fixed. Then it must be a problem with the certificate. It may have been corrupted (You may see an error code of 0x8009001a in the SChannel event log).

    Event Type: Error
    Event Source: Schannel
    Event Category: None
    Event ID: 36870
    Date: 2/11/2012
    Time: 12:44:55 AM
    User: N/A
    Computer:
    A fatal error occurred when attempting to access the SSL server credential private key. The error code returned from the cryptographic module is 0x8009001a.
  • We will test if the website works with a test certificate. Take a back-up of the existing certificate and then replace it with a self-signed certificate. Try accessing the website via https. If it works then the certificate used earlier was corrupted and it has to be replaced with a new working certificate.

  • Sometimes the problem may not be with the certificate but with the issuer. You may see the following error in SSLDiag:

    CertVerifyCertificateChainPolicy will fail with CERT_E_UNTRUSTEDROOT (0x800b0109), if the root CA certificate is not trusted root.

    To fix this add the CA's certificate to the 'Trusted Root CA' store under My computer account on the server.

  • You may also get the following error:

    CertVerifyCertificateChainPolicy returned error -2146762480(0x800b0110).

    If the above error is received then we need to check the usage type of the certificate. Open the certificate, click on the 'Details' tab and then click on 'Edit Properties…' button. Under General tab make sure 'Enable all purposes for this certificate' is selected and most importantly 'Server Authentication' should be present in the list.

Scenario 3

The first 2 steps check the integrity of the certificate. Once we have confirmed that there are no issues with the certificate, a big problem is solved. But, what if the website is still not accessible over https. Check the HTTPS bindings of the website and determine what port and IP it is listening on. You could run the following command to ensure no other process is listening on the SSL port used by the website.

If there is another process listening on that port then check why that process is consuming that port. Try changing the IP-Port combination to check if the website is accessible or not.

Scenario 4

By now we are sure that we have a proper working certificate installed on the website and there is no other process using the SSL port for this website. However, I still get 'Page cannot be displayed' error while accessing over https. When a client connects and initiates an SSL negotiation, HTTP.sys looks in its SSL configuration for the 'IP:Port' pair to which the client connected. The HTTP.sys SSL configuration must include a certificate hash and the name of the certificate store before the SSL negotiation will succeed. The problem may be with the HTTP.SYS SSL Listener.

  • The Certificate hash registered with HTTP.SYS may be NULL or it may contain invalid GUID. Execute the following from a command prompt:

    Note

    httpcfg is part of Windows Support tools and is present on the installation disk. You could download it from here as well: https://www.microsoft.com/download/en/details.aspx?id=7911

    Below is a sample of a working and non-working scenario:

    Working scenario:

    IP0.0.0.0:443
    Hash
    Guid{00000000-0000-0000-0000-000000000000}
    CertStoreNameMY
    CertCheckMode0
    RevocationFreshnessTime0
    UrlRetrievalTimeout0
    SslCtlIdentifier0
    SslCtlStoreName0
    Flags0

    Non-working scenario:

    IP0.0.0.0:443
    Hashc09b416d6b 8d615db22 64079d15638e96823d
    Guid{4dc3e181-e14b-4a21-b022-59fc669b0914}
    CertStoreNameMY
    CertCheckMode0
    RevocationFreshnessTime0
    UrlRetrievalTimeout0
    SslCtlIdentifier0
    SslCtlStoreName0
    Flags0

    The Hash value seen above is the Thumbprint of your SSL certificate. Notice, that the Guid is all zero in a non-working scenario. You may see the Hash either having some value or blank. Even if we remove the certificate from the web site, and then run 'httpcfg query ssl', the website will still list Guid as all 0's. If you see the GUID as '{0000........000}, then there is a problem.

    You have now created a private/public key pair. For GIT the key must have a strength of 2048, must be located in the users.ssh directory and be called idrsa and idrsa.pub. When pasting the keys into the files make sure to use a program that does not add new lines like VIM. Failed to generate rsa key pair windows 10.

    We need to remove this entry by running the command:

    For example:

  • Delete any entries in the IP Listen list.

    To determine whether any IP addresses are listed, open a command prompt, and then run the following command:

    If the IP Listen list is empty, the command returns the following string:

    If the command returns a list of IP addresses, remove each IP address in the list by using the following command:

    Note

    restart IIS after this via command 'net stop http /y'

Scenario 5

After all this if you are still unable to browse the website on https, then capture a network trace either from the client or server. Filter the trace by 'SSL or TLS' to look at SSL traffic.

Below is a network trace snapshot of a non-working scenario:

Generate

Working scenario:

Well, this is definitely now how you look at a network trace. You need to expand the frame details and see what protocol and cipher was chosen by the server. Select 'Server Hello' from the description to get those details.

In the non-working scenario, the client was configured to use TLS 1.1 and TLS 1.2 only. However, the web server was IIS 6, which can support until TLS 1.0 and hence the handshake failed.

Do check the registry keys to determine what protocols are enabled or disabled. Here's the path:

The 'Enabled' DWORD should be set to '1'. If '0' then the protocol is disabled.

For example, SSL 2.0 is disabled by default.

Scenario 6

If everything has been verified and if you are still running into issues accessing the website over https, then it most likely is some update which is causing the SSL handshake to fail.

Microsoft has released an update to the implementation of SSL in Windows:

There is potential for this update to impact customers using Internet Explorer, or using an application that uses Internet Explorer to perform HTTPS requests.

There were actually two changes made to address information disclosure vulnerability in SSL 3.0 / TLS 1.0. The MS12-006 update implements a new behavior in schannel.dll, which sends an extra record while using a common SSL chained-block cipher, when clients request that behavior. The other change was in Wininet.dll, part of the December Cumulative Update for Internet Explorer (MS11-099), so that IE will request the new behavior.

If a problem exists, it may manifest as a failure to connect to a server, or an incomplete request. Internet Explorer 9 is able to display an 'Internet Explorer cannot display the webpage' error. Prior versions of IE may simply display a blank page.

Fiddler does not use the extra record when it captures and forwards HTTPS requests to the server. Therefore, if Fiddler is used to capture HTTPS traffic, the requests will succeed.

Registry keys

As documented in https://support.microsoft.com/kb/2643584, there is a SendExtraRecord registry value, which can:

  • Globally disable the new SSL behavior
  • Globally enable it, or
  • (Default) enable it for SChannel clients that opt in to the new behavior.

For Internet Explorer and for clients that consume IE components, there is a registry key in the FeatureControl section, FEATURE_SCH_SEND_AUX_RECORD_KB_2618444, which determines whether iexplore.exe or any other named application opts in to the new behavior. By default this is enabled for Internet Explorer, and disabled for other applications.

Other Resources