• Outlook For Android Certificate
• Install Certificate Android

• • Authentication Certificates

This document explains how you can import your CPAC/Email onto Android devices.

Download free and secure Encryption software and apps for Security. Download free and secure Encryption software and apps for Security. Tom's Guide / Tom's Hardware / Laptop Mag / TopTenReviews / AnandTech; Go. Product Reviews. Encrypt your data for. CipherMail for Android is an Android application which can be used with your existing Android mail application to send and receive S/MIME digitally signed and encrypted email with an Android smartphone. Features: - S/MIME 3.1 (X.509, RFC 3280), email encryption and digital signing - Can be used with the Android Gmail application - Compatible with existing S/MIME clients (like Outlook. Learn how to use email digital certificates in Microsoft Intune to sign and encrypt emails on devices. These certificates are called S/MIME and are configured using device configuration profiles. Signing and encryption certificates use PKCS, or private certificates, and use a connector to import certificates.

Background notes

• The native Android mail client does not support signing or encryption of emails. Signing and encryption is, however, supported by some 3rd party apps and by some manufacturer-specific mail clients such as the one found on Samsung Galaxy devices. For help in this area, see List of SMIME compatible Android clients and Android – Djigzo app. We will add more documents as support grows for SMIME on Android.

• If you originally downloaded your certificate to your desktop or laptop then you first need to export it using one of the browsers listed on the CPAC main page. When doing this, please make sure you export the private key and include all certificates in the certificate path if possible. You must also specify a strong password to protect the certificate file.

• Once exported from your computer, you need to transfer it to your Android device (for example, copy to a USB drive or upload then download from online storage or email it to your device). The example in this document shows installation of a certificate that has been transferred to an SD card.

Import your certificate to Android:

1. Tap Settings > Security. Under 'Credential Storage' select 'Install from SD card'.

2. Enter the password you set up for the certificate when it was exported and click 'OK'.

3. In the 'Name the certificate' screen, enter a friendly name to identify the certificate and tap OK.

4. If you have not yet set a passcode or pattern to lock your home screen then you will be prompted to do so before proceeding. This is required before you can install your certificate and will be requested in future to access the Android certificate store (Settings > Trusted Credentials). If you have already set a screen passcode this step will be skipped and the certificate will be installed.

5. Click OK. The Certificate will be installed.

You can confirm tcertificate installation by viewing the User Certificates under Trusted Credentials.

• Open the Settings panel and tap Security > Trusted Credentials

• Tap the User tab. You will see the list of user authentication certificates installed on your Android device.

Contact us for consultation on your security needs.

Outlook For Android Certificate

Encryption and digital certificates are important considerations in any organization. By default, Exchange Server is configured to use Transport Layer Security (TLS) to encrypt communication between internal Exchange servers, and between Exchange services on the local server. But, Exchange administrators need to consider their encryption requirements for communication with internal and external clients (computers and mobile devices), and external messaging servers.

Note

Exchange Server 2019 includes important changes to improve the security of client and server connections. The default configuration for encryption will enable TLS 1.2 only and disable support for older algorithms (namely, DES, 3DES, RC2, RC4 and MD5). It will also configure elliptic curve key exchange algorithms with priority over non-elliptic curve algorithms. In Exchange Server 2016 and later, all cryptography settings are inherited from the configuration specified in the operating system. For additional information, see Exchange Server TLS Guidance.

This topic describes the different types of certificates that are available, the default configuration for certificates in Exchange, and recommendations for additional certificates that you'll need to use with Exchange.

For the procedures that are required for certificates in Exchange Server, see Certificate procedures in Exchange Server.

Digital certificates overview

Digital certificates are electronic files that work like an online password to verify the identity of a user or a computer. They're used to create the encrypted channel that's used for client communications. A certificate is a digital statement that's issued by a certification authority (CA) that vouches for the identity of the certificate holder and enables the parties to communicate in a secure manner by using encryption.

Digital certificates provide the following services:

• Encryption: They help protect the data that's exchanged from theft or tampering.

• Authentication: They verify that their holders (people, web sites, and even network devices such as routers) are truly who or what they claim to be. Typically, the authentication is one-way, where the source verifies the identity of the target, but mutual TLS authentication is also possible.

Certificates can be issued for several uses. For example: web user authentication, web server authentication, Secure/Multipurpose Internet Mail Extensions (S/MIME), Internet Protocol security (IPsec), and code signing.

A certificate contains a public key and attaches that public key to the identity of a person, computer, or service that holds the corresponding private key. The public and private keys are used by the client and the server to encrypt data before it's transmitted. For Windows users, computers, and services, trust in the CA is established when the root certificate is defined in the trusted root certificate store, and the certificate contains a valid certification path. A certificate is considered valid if it hasn't been revoked (it isn't in the CA's certificate revocation list or CRL), or hasn't expired.

The three primary types of digital certificates are described in the following table.

To prove that a certificate holder is who they claim to be, the certificate must accurately identify the certificate holder to other clients, devices, or servers. The three basic methods to do this are described in the following table.

Certificates in Exchange

When you install Exchange 2016 or Exchange 2019 on a server, two self-signed certificates are created and installed by Exchange. A third self-signed certificate is created and installed by Microsoft Windows for the Web Management service in Internet Information Services (IIS). These three certificates are visible in the Exchange admin center (EAC) and the Exchange Management Shell, and are described in the following table:

The properties of these self-signed certificates are described in the Properties of the default self-signed certificates section.

These are the key issues that you need to consider when it comes to certificates in Exchange:

• You don't need to replace the Microsoft Exchange self-signed certificate to encrypt network traffic between Exchange servers and services in your organization.

• You need additional certificates to encrypt connections to Exchange servers by internal and external clients.

• You need additional certificates to force the encryption of SMTP connections between Exchange servers and external messaging servers.

The following elements of planning and deployment for Exchange Server are important drivers for your certificate requirements:

• Load balancing: Do you plan to terminate the encrypted channel at load balancer or reverse proxy server, use Layer 4 or Layer 7 load balancers, and use session affinity or no session affinity? For more information, see Load Balancing in Exchange 2016.

• Namespace planning: What versions of Exchange are present, are you using the bound or unbound namespace model, and are you using split-brain DNS (configuring different IP addresses for the same host based on internal vs. external access)? For more information, see Namespace Planning in Exchange 2016.

• Client connectivity: What services will your clients use (web-based services, POP, IMAP, etc.) and what versions of Exchange are involved? For more information, see the following topics:

Certificate requirements for Exchange services

The Exchange services that certificates can be assigned to are described in the following table.

^* Kerberos authentication and Kerberos encryption are used for remote PowerShell access, from both the Exchange admin center and the Exchange Management Shell. Therefore, you don't need to configure your certificates for use with remote PowerShell, as long as you connect directly to an Exchange server (not to a load balanced namespace). To use remote PowerShell to connect to an Exchange server from a computer that isn't a member of the domain, or to connect from the Internet, you need to configure your certificates for use with remote PowerShell.

Best practices for Exchange certificates

Although the configuration of your organization's digital certificates will vary based on its specific needs, information about best practices has been included to help you choose the digital certificate configuration that's right for you.

• Use as few certificates as possible: Very likely, this means using SAN certificates or wildcard certificates. In terms of interoperability with Exchange, both are functionally equivalent. The decision on whether to use a SAN certificate vs a wildcard certificate is more about the key capabilities or limitations (real or perceived) for each type of certificate as described in the Digital certificates overview.

  For example, if all of your common names will be in the same level of contoso.com, it doesn't matter if you use a SAN certificate or a wildcard certificate. But, if need to use the certificate for autodiscover.contoso.com, autodiscover.fabrikam.com, and autodiscover.northamerica.contoso.com, you need to use a SAN certificate.

• Use certificates from a commercial CA for client and external server connections: Although you can configure most clients to trust any certificate or certificate issuer, it's much easier to use a certificate from a commercial CA for client connections to your Exchange servers. No configuration is required on the client to trust a certificate that's issued by a commercial CA. Many commercial CAs offer certificates that are configured specifically for Exchange. You can use the EAC or the Exchange Management Shell to generate certificate requests that work with most commercial CAs.

• Choose the right commercial CA: Compare certificate prices and features between CAs. For example:

  • Verify that the CA is trusted by the clients (operating systems, browsers, and mobile devices) that connect to your Exchange servers.

  • Verify that the CA supports the kind of certificate that you need. For example, not all CAs support SAN certificates, the CA might limit the number of common names that you can use in a SAN certificate, or the CA may charge extra based on the number of common names in a SAN certificate.

  • See if the CA offers a grace period during which you can add additional common names to SAN certificates after they're issued without being charged.

  • Verify that the certificate's license allows you to use the certificate on the required number of servers. Some CAs only allow you to use the certificate on one server.

• Use the Exchange certificate wizard: A common error when you create certificates is to forget one or more common names that are required for the services that you want to use. The certificate wizard in the Exchange admin center helps you include the correct list of common names in the certificate request. The wizard lets you specify the services that will use the certificate, and includes the common names that you need to have in the certificate for those services. Run the certificate wizard when you've deployed your initial set of Exchange 2016 or Exchange 2019 servers and determined which host names to use for the different services for your deployment.

• Use as few host names as possible: Minimizing the number of host names in SAN certificates reduces the complexity that's involved in certificate management. Don't feel obligated to include the host names of individual Exchange servers in SAN certificates if the intended use for the certificate doesn't require it. Typically, you only need to include the DNS names that are presented to the internal clients, external clients, or external servers that use the certificate to connect to Exchange.

  For a simple Exchange Server organization named Contoso, this is a hypothetical example of the minimum host names that would be required:

  • mail.contoso.com: This host name covers most connections to Exchange, including Outlook, Outlook on the web, OAB distribution, Exchange Web Services, Exchange admin center, and Exchange ActiveSync.

  • autodiscover.contoso.com: This specific host name is required by clients that support Autodiscover, including Outlook, Exchange ActiveSync, and Exchange Web Services clients. For more information, see Autodiscover service.

Install Certificate Android

Properties of the default self-signed certificates

Some of the more interesting properties of the default self-signed certificates that are visible in the Exchange admin center and/or the Exchange Management Shell on an Exchange server are described in the following table.

^*These properties aren't visible in the standard view in the Exchange Management Shell. To see them, you need to specify the property name (exact name or wildcard match) with the Format-Table or Format-List cmdlets. For example:

• Get-ExchangeCertificate -Thumbprint <Thumbprint> | Format-List *

• Get-ExchangeCertificate -Thumbprint <Thumbprint> | Format-Table -Auto FriendlyName,*PrivateKey*

For more information, see Get-ExchangeCertificate.

Further details about the default self-signed certificates that are visible in Windows Certificate Manger are described in the following table.

Typically, you don't use Windows Certificate Manger to manage Exchange certificates (use the Exchange admin center or the Exchange Management Shell). Note that the WMSVC certificate isn't an Exchange certificate.