This component can be used to either MIME encode, sign or encrypt an outgoing message with encryption and signing certificates. That way you just have to suck in, decode and import. mkv. de/base-128-decoder. 509 (. FromBase64String chokes on non-base64 characters like the hyphen otherwise. exe utility and one for the signature that is used in the INF file. com Base 128 Decoder. Convert]::ToBase64String($pfx_cert) Write-Host $base64 This will read the certificate from your local machine, and print out a long string as Base64. So here are two very very very simple scripts that use certutil to decode and encode base64 string (and dealing with begin and end tags) (there are no checks for file existence and if the parameters are correct - I rely on certutil error messages): Passive Detection Monitoring networks for potential security violations can uncover some interesting events and surprising aspects of applications. Export certificates from the local certificate store as Base-64 X. Encoding]::Unicode. And decoding back. I’ve just published my X509Details PowerShell Module to the PowerShell Gallery. co. However, many of  15 May 2014 powershell - Converting base64 string to X509 certifcate - when writing out object file system (i believe cert files asn 1 encode binary files). This certificate viewer tool will decode certificates so you can easily see their contents. Convert]::FromBase64String($cert. light  the run window. The official documentation is pretty clear if you want to pass a text or binary file as an attachment the SendGrid API is requiring a couple of strings: filename and content in base64, but in case May 31, 2020 · The idea of encoding and decoding to- and from Base64 using PowerShell is based on the very same algorithm as we used in our Python example. CER)’ radio button in the ‘Certificate Export Wizard’ using the GUI (see screenshot below) See full list on sid-500. Converts Encode me! into a base-64 string. Our site has an easy to use online tool to convert your data. Enter CSR or: Decode; HTML #1 HTML #2 . crt. Convert]::ToBase64String($pfx_cert) The above command will save it in $base64 variable, and now you can use this variable or output it to a file depending on your scenario. Use the public key extracted from the signing certificate to decrypt the encrypted signature to produce the asserted hash value. Most development environments contain a native "base64" utility to encode a binary image into ASCII text data. Base64 is a binary-to-text encoding scheme, so a PEM file, which is a Base64 encoded DER file, is that same X. Base64 encode your data without hassles or decode it into a human-readable format. txt Decoding Strings. txt"; [System. Basically, I want to extract all certificate information from Azure, decode it from Base64, create the certificate (X509Certificate2) in memory and check the NotAfter property against the date I wanted. This will read  10 Sep 2016 Exporting a Base-64 Encoded x. 509 digital certificate encoded in binary – 1’s and 0’s. 509 certificate received from The PEM certificates are encoded in the text ASCII Base64 format, Try to open your . L'image sera encodée en base64 puis incluse dans le document. Encoding. msc or load directly to Powershell SET-LOCATION  21 Jan 2020 Yesterday we needed to convert the SSL x. https://dev. Convert]::FromBase64String("SGVsbG8gV29ybGQ=") PS C:\Temp>[System. $sEncodedString=[Convert]::ToBase64String ([System. lnk file. I figured out that the -EncodedCommand parameter of PowerShell. Encoding]::ASCII) Shows how to specify a custom encoding in case your string isn't in Unicode text encoding. We just need to leverage [convert]::tostring(12345,16) To quickly convert a number to hexadecimal, I would type this. Finally, the Powershell window will produce the summary of the provided i 9 Jun 2020 In this tutorial, we are going to show you how to encode and decode Powershell commands on a computer running Windows. . Change ". cer, . Export() with an appropriate X509ContentType argument and then convert to base64 with line breaks: Provides PowerShell cmdlets to do base64 encoding and decoding. Text. the certificate as base64 encoded; Convert the base64 encoded certificate to byte  To Base64; From Base64; To Hex; From Hex; To Hexdump; From Hexdump; URL Decode; Regular expression; Entropy; Fork; Magic. Generates 32 random characters (256bits): openssl rand 32 SSL & CSR Decoder. Convert-CertificateBinaryToBase64 -Sourcefile 'C:\myBinary. 18 Nov 2020 Generating The Self Signed Certificate Using Powershell. GetBytes". String Converting pfx certificate to Base64 encoded string is really easy using the powershell. $Cert  But I'm not a command-line guy, I'm a developer, and I like to have my code in a file where I can edit it, modify it, re-use it, and run it. They trust us. For printable certificate formats (Base64), the Base64 data represents a series of ASCII characters. PSMDTAG:DOTNET: System. Data format. In cryptography X. Example output: EnhancedKeyUsageList : {} DnsNameList : {BlaBla} SendAsTrustedIssuer  9 Apr 2018 How to convert a binary encoded DER security certificate into a Base 64 encoded certificate file using only Windows PowerShell. base64 certificate example. To base64 encode a file. But wait, there’s more. cer' -DestinationFile 'C:\myCertificate. crt) and fetches information about the cert. txt Input Length = 11 Output Length = 6 CertUtil: -decode command completed successfully. lv Sep 18, 2013 · That being the case can the Template name be specified as part of the CSR (e. Convert, System. txt" and output. That's just a batch file. bin as needed - this will take . base64 /path/to/file. cer) format so it can be successfully imported into a PSE. Save this into notepad and move onto the next step. Convert the file, retaining the source file. I have updated this post with a better example since it gets a fair amount of traffic every day. der. Jan 27, 2021 · Luckily for base64 encryption there is plenty of solutions for every system and preferrence out there. . I noticed that exporting to Base64 format using both 'certutil -encode' and the MMC Certificate  Vadims Podans on Public Key Infrastructure and PowerShell. Simply use Encode files into Base64 format. It also contains the public key. CertUtil can replace PowerShell for specific tasks such as downloading a file from a remote URL and encoding and decoding a Base64 obfuscated payload. Sep 01, 2020 · Base64 Encoding a File. Tangentally: If you have access to . $Text = "This was encoded using Base64" Replace Tenable Nessus Essentials Self-Signed CertificateIn " After we have embedded the base64 string representation of the file we need to decode it to a dll file before we can use it. cer format certificate to Import into my Websense proxy server. The x. A DER file is an X. It supports 7bit, 8bit, binary, quoted-printable, base64, and UUencode encoding. Convert]::ToBase64String($b) SGVsbG8gV29ybGQ= And here is the example how to decode Base64 string using FromBase64String method: PS C:\Temp>$b = [System. $Certfile = " Enter your UNC Path" [System. Waht is an SSL Certificate? SSL Certificate provides security for your website by encrypting communications between the server and the person visiting the website. What is Ask SSL Support Desk? It is a summary of random questions that have one to the attention of Acmetek’s most awesome technical support reps. Simple Obfuscation with PowerShell using Base64 Encoding Mike F Apr 25, 2006 · PSMDTAG:FAQ: How do I base64 encode/decode a string? PSMDTAG:PHILOSOPHY: Whenever you are adding some functions, you should make a conscious decision about whether those functions are best exposed as a “function” or as a “type extension”. Convert]::FromBase64String((Get-Content $file)) | Set-Content output. py to unveil the Powershell pivot. crt file using any text editor, or list its contents using 12 Apr 2017 Now, we have to convert the SecretValueText property to a certificate. Once you have the certificate as a Base64 string, then actually, the rest is easy. cer is interchangeable with *. pfx' -Encoding Byte. Sep 18, 2013 · That being the case can the Template name be specified as part of the CSR (e. How do I export a certificate using Base 64 . GetString($b) Hello World Jun 19, 2017 · The first variable sets the certificate name, or friendly name, and the next two variables are the paths to the certificate request files, one for the path to the INF file that will be used as a template for the certreq. Par conséquent, la commande tentera automatiquement de le décoder en base64. Mar 06, 2014 · Certificates exported with the two different options looks and acts the same on the file level: The file extention *. favicons in Firefox's exported bookmarks. Localized data character set changes do not affect the encoding. Fear not, we don't need to sort out how to ASN. This process is used for things like SSL certificates, the stuff inside here is BASE64 encoded: -----BEGIN CERTIFICATE----- MIIF2zCCBMOgAwIBAgIQMj8HjgweXk The real BASE64 and BASE32 do not split bytes in half, because they can do better and the output won’t be so much bigger. microsoft. To decode with base64 you need to use the --decode flag. 509 Certificate Details PowerShell Module contains the Get-X509Details cmdlet that decodes a base64 encoded PEM/CER format x. base64 der certificate. Here is an example of using certutil to base64 decode a file: C:\Users\vagrant>echo aGVsbG8K >hello. g. 2 days ago · I'm then able to copy the base64-encoded part that's in parenthesis, paste it into a file, and decode the contents of the file with [System. txt out. You will be required to provide the password for the  15 Jun 2017 One of the questions had an encoded command which you were to decode. A Certificate value (with the contained values filled in) is encoded using the DER format, which is a binary format. Encoding: $Text = 'This is a secret and should be hidden' $Bytes = [  18 Oct 2018 To get Certificate data from PFX File Run below Script in powershell. Question: I need a Base64 encoded . Convert]::  20 Dec 2019 Also the block of text can be Base64 decoded to reveal the Request Headers to for this blog post, I will start with runs powershell decoding base64 string: This would make detecting the default certificates of Posh 24 Jan 2018 Code in PowerShell to encode and decode a string to/from base64. Overview. KeyVault. Loads a digital certificate from a base64 encoded DER X. Here’s the C# code you need. GetBytes("Hello World") PS C:\Temp>[System. then view it in Windows certmgr. Base64 Encoding of certificate. Submit your base64 encoded CSR or certificate in the field below. # Install Choco ( look for instructions in this blog) # Install openssl. Then the batch file runs the exe because they are impatient and don't want to wait for your next startup. Nov 13, 2018 · This article shows how to decode a script block that a PowerShell process is currently running. bas64 /path/to/file > output. I had a scenario where I was required to use base64 encoding to upload certificate to Azure  You should only need to convert the format from Binary to Base64 and vice versa if some application demands it. The problem is that PewrShell is Unicode by default, while CryptoAPI decoder expects an ASCII encoding (where each character is encoded by  4 Dec 2019 509 Certificate Details PowerShell Module contains the Get-X509Details cmdlet that decodes a base64 encoded PEM/CER format x. I really needed to find a Powershell Base64 Decode - Online base64, base64 decode, base64 encode, base64 converter, python, to text _decode decode image, javascript, convert to image, to string java b64 decode, decode64 , file to, java encode, to ascii php, decode php , encode to file, js, _encode, string to text to decoder, url characters, atob javascript, html img, c# encode, 64 bit decoder, decode linuxbase decode Jun 10, 2020 · The only way I could get this to work was by using "Convert. Thanks all Ernie Mar 05, 2016 · Convert pfx certificate to base64 string using Powershell March 5, 2016 March 5, 2016 Siva Use the below script to convert to pfx certificate to convert to Base64 string using Powershell How to read Certificates and CRLs using PowerShell. 𝗗𝗼𝗻'𝘁 𝗳𝗼𝗿𝗴𝗲𝘁 𝘁𝗼 𝘀𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝗮𝗻𝗱 𝘀𝗺𝗮𝘀𝗵 𝘁𝗵𝗲  p7b file into Base64 (. 1. 7. Loading Your Base64 Encoded Certificate. DESCRIPTION Can get various certificate fileds from the Certificate Authority database. Decrypt(data, RSAEncryptionPadding. SecretValueText) $  14 Nov 2018 All examples below uses base64 decoded text (eWVhaGh1Yg==) for simplicity, but this is not a typical use case, In Windows PowerShell – How to Enable Self-Signed Certificates for Local Apache Webserver – LINUX. My followers know what’s coming next: I don’t care much of 3rd party tools and yes, of course, I am going to use only Windows PowerShell. So, we spent most of the weekend un-packing. Update: I updated this Encode string using Base64. dll -Value $Content -Encoding Byte Apr 02, 2020 · Now we just need one final thing, support for outputting a base64-encoded version of the certificate as a string. Therefore the command will automatically attempt to decode it in base64. Lets dive in to some options to help you stay more secure. 2 Sep 2019 You can run below PowerShell command to generate . 509 certificate, but encoded in text, which (remember!) is represented as ASCII. Jul 19, 2019 · Masked as a certificate file, we can decode the content with via Didier Stevens base64dump. 509  15 Feb 2018 NET namespace available in PowerShell to convert. Once you do the SSL install on your server, you can check to make sure it is installed correctly by using the SSL Checker. Simple Base64 encoding and decoding in VBScript. These extensions generally map to two major encoding schemes for X. $fileContentBytes = get-content 'C:\users\preet\downloads\wildcard. In this blog post I am going to play with encryption and decryption of data. NET 4. Certutil decodes it and turns it into an executable file that runs at startup. @ewanm89 Ok but what is the base 64 encoded key for? – TerrorKid Nov 10 '12 at 13:44 it's the public key, base64 encoding is to send it as ascii text rather than pure binary so that it can go across any protocol. der and Base64 encoded certificates sometimes have the file extention *. Look at that, six times longer than the See full list on sysadmins. crt, . mein-mobina. FromBase64String" instead of "Encoding. Personally, if you have control over how the cert is sent or created like if on windows using Powershell also then instead of saving it out as a PFX, PEM or der, I would just dump the raw bytes to a variable and base64 encode that and send, or save as string, it trimmed of all ending lines. 17 Nov 2014 PowerShell provides an easy method for Base64 encoding and decoding. $file = ". This will output a very long, base64 encoded string. Encode to Base64 format or decode from it with various advanced options. Here is a simple way to encode text as a Base64 string: #requires -Version 1 $ text PowerShell. Base64 Decode Mysql. Echo "Base64 encoding . Your certificate should start with "-----BEGIN CERTIFICATE----- " and end with "-----END CERTIFICATE----- ". 27 Dec 2016 It also contains the public key. 509 certificates and keys: PEM (Base64 ASCII), and DER (binary). Convert]::FromBase64String($Base64) Set-Content -Path $env:temp\AM. if you have loose files that are required by your script, you can include those files inside your script. Encoding]::UTF8. 509 Details PowerShell Module contains the Get-X509Details cmdlet that decodes a base64 encoded PEM/CER format x. To Hexdump  2 Apr 2020 Can we get similar functionality out of say, PowerShell 5. Base64 encoding is used by many applications to "obscure" the password when it travels across the network. 509 Details PowerShell Module is because through automation I need […] Nov 02, 2017 · Obtaining the certificates is easy through the SslCertificates property of the Application Gateway instance. Encodes Encode me, please! into a base-64 string. But I've been in the process of updating a PowerShell script of mine. Converts PEM ( Privacy Enhanced Mail) certificate with embedded private key to a PEM file must be encoded in Base64 encoding and should have the following contents. Then you can import your certificates and view details. Security tip Because the SAML response data that you are viewing might contain sensitive security data, we recommend that you do not use an online base64 decoder. 509 Certificate (. The reason I created the x. php?pfc=base64-encoding. Convert]::FromBase64String in PowerShell or base64 --decode in WSL to get a PFX file. Generates 32 random bytes (256bits) in a base64 encoded output: openssl rand -base64 32 Plaintext. We will attempt to decode and analyze it to detect issues with it if any. cer, . EXAMPLE 3 'Encode me!' | ConvertTo-Base64. However, it took me a while to figure out how to actually extract the base64-encoded data into an X509Certificate2 instance. – ewanm89 Nov 10 '12 at 13:48 Once you find the Base64-encoded SAML response element in your browser, copy it and use your favorite Base-64 decoding tool to extract the XML tagged response. be encoded along with the other Base64 encoding) and if so is it possible to turn this base64 CSR into human readable format without access to the private key of the machine that create the CSR in the first instance. $Content = [System. Base64 Encode & Decode Online Base64 is a group of similar binary-to-text encoding schemes Base64 to hex: Encode and decode bytes online Base64 encoding schemes are used when (PowerShell) Base64 Encode/Decode a String. Pkcs1). Aint nobody got time fo dat. Answered and shared for the SSL Support Desk’s SSL Library which is designed to teach and educate the community. I can then open that PFX file up and import it into my local user store: Oct 02, 2019 · My first reflex was to use PowerShell to call Azure Resource Graph to automate this. # Use this script to create a certificate that you can use to secure a Service Fabric Cluster or other VM/SSL scenario. 2. Decode from Base64 or Encode to Base64 - Here with our simple online tool. It generates certificate signing request (CSR) and private key Save both files in a safe place. Run these OpenSSL commands, to decode your SSL Certificate, and verify that it contains the correct information  I'm working on a script that needs a certificate to sign a JWT for I'm assuming this to be a base-64 encoded cer/pem file. \input. You may want to write the stdout to file instead. • Windows 7 • . cer'. Sep 14, 2020 · Convert certificate from pfx to base64 with PowerShell 15 Feb 2018 – 1 min read 1 post → Get Issued Certificate data from one or more certificate athorities. Now is this starting to make a little more sense? Ok, let’s keep going. Spoiler alert: the resulting Base64 string will be 'YUFB=='. Convert-CertificateBinaryToBase64 -Sourcefile 'C:\myCertificate. And it prints decoded file in lines with max length of 64 symbols. Base64 Bounced Email Box CAdES CSR CSV Certificates Compression DKIM / DomainKey DSA Diffie-Hellman Digital Signatures Dropbox Dynamics CRM ECC Ed25519 Email Object Encryption FTP FileAccess Firebase GMail REST API GMail SMTP/IMAP/POP Geolocation Google APIs Google Calendar Google Cloud SQL Google Cloud Storage Google Drive Google Photos Google It contains information that will be included in your certificate, such as your organization name, common name (domain name), locality, and country. 3. kr/etroi/pcr38. CER certificate using pfx certificate. Run these OpenSSL commands, to decode your Certificate Signing Request, and verify that it contains the correct information. To demonstrate this scenario, open a new PowerShell window and run the following code. X-Base64; VBScript Code: Option Explicit Dim errResult WScript. [string]$sStringToEncode="My string to encode". Base64 encoding schemes are commonly used when there is a need to encode binary data, especially when that data needs to be stored and transferred over media that are designed to deal with text. Oct 29, 2017 · PowerShell is a Windows built-in tool and you can use it for cryptography as well. #Requires -Module AzureRM. What if we need to install an SSL certificate for the service other than IIS and there is no IIS Manager Also, make sure that File Format is set to Base64. Doing Some Conversions. FROM_BASE64() Decode base64 encoded string and return result HEX() Hexadecimal . 6 API in your powershell scope you would be better served by changing from casting cert. base64 certificate extension. PowerShell: Convert Between Various SSL Certificate Formats. $base64 = [System. There are certificates/keys for which the old way doesn't work, and the new You may have seen digital certificate files with a variety of filename extensions, such as . There is various things that people tend to convert to base64 to use as a Kubernetes secret such as a password, token, or even ingress certificate. PSMDTAG:TYPEEXTENSION: System. com. html. klwines. Powershell. https://ttaa. GetString([System. Use this Certificate Decoder to decode your certificates in PEM format. I can then open that PFX file up and import it into my local user store: See full list on docs. cer' -DestinationFile 'C:\myBase64. I don’t think we can convert a number to an ASCII character. If you want to decode certificates on your own computer, run this OpenSSL command: 2 days ago · I'm then able to copy the base64-encoded part that's in parenthesis, paste it into a file, and decode the contents of the file with [System. $certBytes = [System. To convert certificate in base64, execute below command. PARAMETER ExpireInDays Maximum number of days from now that a certificate will expire. com You can use this certificate viewer by simply pasting the text of your certificate into the box below and the Certificate Decoder will do the rest. UTF8. Base64 is often used to embed binary data in an XML file, using a syntax similar to <data encoding="base64">…</data> e. Run these OpenSSL commands, to decode your SSL Certificate, and verify that it contains the correct […] Jun 21, 2019 · PowerShell – Base64 Encode/Decode Posted on June 21, 2019 May 15, 2020 Author MrNetTek This is how you embed resource files right into your PowerShell script, meaning…. Is there any option/ability for us to save the certificate in GitHub Secrets so we can securely use it within an workflow? If not, what is a current recommended method? -----END CERTIFICATE-----and -----BEGIN CERTIFICATE-----at begining and at the of base64 file. 509 Certificate Details PowerShell Module is because through automation I need to know what is the ‘Expiry Date’ for a certificate. bin -Encoding Byte The x. Base64 Encoding You can provide image data to the AutoML Vision API by sending the image data as base64-encoded text. Feb 15, 2018 · In order to convert to base64 format, we will use system namespace from windows system. GetRSAPrivateKey() and using the newer RSA. How to en- and decode base64 strings. Apr 25, 2020 · Today I’ve answered a question in one of my blog articles on SendGrid API and PowerShell on how to add attachments to an email when using the API. Convert the binary file, overwriting it with the Base64 file. Thanks all Ernie Decoding the file. Usfull for exporting certificates or checking what is about to expire . - Generate a SHA-1 hash value from the full HTTPS request body to produce the derived hash value base64 certificate decoder online. 19 Sep 2016 How do I export a certificate using Base 64 . GetBytes ($sStringToEncode)) write-host "Encoded String:" $sEncodedString. txt, base 64 decode it, and then write the bytes out to output. pem, or . light choco install openssl. To get this Convert]:: ToBase64String($pfx_cert) Write-Host $base64. Example usage. Base64. bin exactly as they were when the file was encoded. exe, for example, can run commands that are Base64- encoded. Where can I get that? Short Aug 11, 2020 · PowerShell Encoding & Decoding (Base64) By Sean Metcalf in PowerShell , Technical Reference PowerShell provides an easy method for Base64 encoding and decoding. Note: DER-encoded certificates somtimes have the file extension *. Well, in the case of Application Gateway, it turned out to Nov 18, 2020 · $pfx_cert = get-content 'MySelfSignedCertificate. txt C:\Users\vagrant>certutil -decode hello. With encoded string, you can pipe an echo command into base64 as PowerShell Encoding & Decoding (Base64) Securing Domain Controllers to Improve Active… Kerberos & KRBTGT: Active Directory’s… Finding Passwords in SYSVOL & Exploiting Group… Securing Windows Workstations: Developing a Secure Baseline; The Most Common Active Directory Security Issues and… Building an Effective Active Directory Lab… PowerShell Encoding & Decoding (Base64) Securing Windows . 509 is a standard defining the format of public key certificates. 509 files I am looking at using GitHub Actions to go through a build and deployment process for a module to the PowerShell Gallery. Base64 is used to encode binary files such as images within scripts, to avoid depending on external files. 1 encode the thing first, we can simply call X509certificate2. This is not PowerShell. Sometimes the Certificate Authorities provide the signed certificates in a . cer). It also contains the public key that will be included in your certificate. After we have embedded the base64 string representation of the file we need to decode it to a dll file before we can use it. Turns out that the certificate is returned in PKCS7 format (also known as P7B), so you need to use the SignedCms class to decode it. pem, usually in non Windows environment. It contains information about your Organization and Certificate Authority. movieparking. PS C:\Temp>$b = [System. Base64 encoding does not implement a cryptographic algorithm to protect sensitive information, yet is often used in many networks and end The picture will be encoded in base64 then embedded in the document. Thus, to save the certificate data as a file, the data must first be Base64 decoded, then encoded as an ASCII string. The malware is base64-encoded in that . Create a long running process. 29 Nov 2020 PowerShell or CLI for Microsoft 365 in your YAML pipeline. pfx' -Encoding Byte $base64 = [System. Encode a string. 1 or Certificate chain ( as sent by the server); The peer certificate (base64 Export() with an appropriate X509ContentType argument and then convert to base64 21 Nov 2019 Learn how X509 certificates work including public and private key Related: Managing Certs with Windows Certificate Manager and PowerShell Base64 – Base64 defines a scheme to encode binary content within the . Jan 22, 2021 · OpenSSL is well known for its ability to generate certificates but it can also be used to generate random data. For binary certificate data (DER, PKCS #7 and PKCS #12), the Base64 data can be simply decoded as a byte array and written to disk. In this process we use a code-signing certificate from an authorized CA. It executes a PowerShell command that outputs a number every minute for 10 minutes. 509 certificate using PowerShell is trivial if you have the Export-Certificate cmdlet available. PrivateKey to RSACryptoServiceProvider to calling cert. CER format with PowerShell ? The Export-Certificate cmdlet has a ‘Type’ parameter with a P7B value, but I’m not sure if that’s the same as selecting the ‘Base-64 encoded X. But why do that when both PowerShell and bash already have tools to encode/ decode base64 contents? 4 Nov 2018 Encoding & Decoding Base64 using PowerShell. EXAMPLE 2 ConvertTo-Base64 -Value 'Encode me, please!' -Encoding ([Text. " Meet Base64 Decode and Encode, a simple online tool that does exactly what it says: decodes from Base64 encoding as well as encodes into it quickly and easily. In addition, I get the impression  Convert]::FromBase64String($certBase64)) $cert | Format-List *. Jan 07, 2017 · Windows base64 Encoding and Decoding Using certutil. Note the -urlcache verb that can be employed for this purpose: Aug 11, 2020 · PowerShell Encoding & Decoding (Base64) By Sean Metcalf in PowerShell , Technical Reference PowerShell provides an easy method for Base64 encoding and decoding. 509 Certificate and converts it to a PowerShell Object. In this short article we go through the process of encoding and then decoding the single letter 'a'. I also had to parse out the "-----BEGIN CERTIFICATE-----" and "-----END CERTIFICATE-----" text from the "rawSIgningCert" field because Convert.