Generate or Create ECDSA - Elliptic Curve Digital Signature Algorithm Keys using OpenSSL in Windows

 Hi folks,

Today we will see how we can create ECDSA (Elliptic Curve Digital Signature Algorithm) Keys

Pre-requisites

OpenSSL

Add openssl bin directory to the environment PATH variable 

Generate Keys

Open Powershell and execute the following commands

1. Get the ECC curves list

openssl ecparam -list_curves

2. Generate a private key using your chosen curve

openssl ecparam -name prime256v1 -genkey -noout -out private-key.pem

3. Generate public key from the private key

openssl ec -in private-key.pem -pubout -out public-key.pem

4. Create a self-signed certificate with 1 year validity

openssl req -new -x509 -config "<opensslDirPath>/share/openssl.cnf" -key private-key.pem -out cert.pem -days 360

5. Convert pem to pfx

get-content private-key.pem, cert.pem | out-file cert-with-private-key

openssl pkcs12 -export -inkey private-key.pem -in cert-with-private-key -out cert.pfx

 Note: Enter the password when prompted (Optional)

Now, you can install the PFX file and check the certificate properties and make use of it.

Send your valuable feedback and comments to psrdotcom@gmail.com

Microsoft Azure DevOps Boards move or copy tasks between projects

 Hi all,

Today we will go through the different ways to organize the work items in Microsoft Azure DevOps Boards.

Pre-requisites

User should have appropriate permissions in both the projects.

Moving the work items between projects

• Select the required items from Boards -> Work items
• Select the more options icon (...) from any one of the selected work item
• Choose "Open selected items in Queries" options
• 
• Queries page navigation will happen
• Select all the items from query results (Ctrl+A)
• Select the more options icon (...) from any one of the selected work item
• Choose "Move to team project" options
• 
• 
  
• Move work item dialog opens up
• 
• 
  
• Choose appropriate options and click Ok.
• All the items would be listed in moved project queries window.
• Click on "Save items" option.

Copy work items between projects

Export work items

• Select the required work items
• Select the more options icon (...) from any one of the selected work item
• Choose "Open selected items in Queries" options
• 
• Queries page navigation will happen
• Select all the items from query results (Ctrl+A)
• Export the work items to CSV file
• 

Import the work items

• Navigate to the required project boards section where the work items has to be created
• Click on "Import work items" option
• 
• 
  
• Queries page navigation will happen
• 
• 
  
• Choose the exported CSV file and click on "Import" button
• The work items would be listed in queries section
• Click on "Save items"
• Navigate to "Work items" section to view the added work items.

Request you send your comments and feedback below or send mail : psrdotcom@gmail.com

Download Chrome Extension for offline Installation

 Hi folks,

I tried to use my extension for offline usage for a VM based PC browser which doesn't have internet to download the extension.

So, I have come up with this approach where you can download the chrome extension (.crx) file.

Find the extension ID

Sample browser extension URL in chrome web store is below

https://chrome.google.com/webstore/detail/previous-next-page/fmichikmgflpgibapdhepmodjdjemmda

Last word is the extension ID (fmichikmgflpgibapdhepmodjdjemmda)

Download the extension file

Browser: Use Mozilla Firefox or other browser but not chrome

Syntax

https://clients2.google.com/service/update2/crx?response=redirect&prodversion=<<browser_version>>&acceptformat=crx2,crx3&x=id%3D<<extensionID>>%26uc

Example

https://clients2.google.com/service/update2/crx?response=redirect&prodversion=85.0.4183.121&acceptformat=crx2,crx3&x=id%3Dfmichikmgflpgibapdhepmodjdjemmda%26uc

Install the extension

1. Copy the .crx file to your offline computer
2. Open Chrome browser
3. Navigate to chrome://extensions
4. Enable developer mode
5. Drag and drop the .crx file

Hope you will be able to use the offline extensions in chrome.

Request you send your comments and feedback in blog or mail : psrdotcom@gmail.com

Convert JSON file to CSV with Python

 Hi folks,

Today I will explain the code to implement the Json2CSV conversion.

Make sure you have valid JSON file with an array of objects.

Sample:

"Users":[

{"id": 1, "Name": "Suresh Raju", "Age": 35},

{"id":2, "Name": "PSR", "Age": 34}

]

I have chosen Python language to convert because of inbuilt library support for json and csv and command line execution with Notepad++ as editor.

Source Code Snippet: GitHub Gist

Please send your valuable feedback and comments to psrdotcom@gmail.com

Base 64 Encode with Powershell Script

 Hi all,

Today I will explain the snippet which gives you a base 64 encoded string

$enc = [system.Text.Encoding]::UTF8

$guid = "42f930c2-2ba2-4d5a-a102-898321122414"

$base64encodedstring = [System.Convert]::ToBase64String($enc.GetBytes($guid))

Write-Host "bBse64 Encoded String: $base64encodedstring"

Hope this helps when you are planning to generate and use/store the base64 encoded value