How to do PGP encryption in Java?

In order to do PGP encryption, you need the PGP public key file. In this post I will tell how to encrypt data with PGP public key in Java. Dependencies Welcome to the home of the Legion of the Bouncy Castle. A fun place to stay, if you've got some time to kill. bouncycastle.orgHome of open source libraries of the Legion of the Bouncy Castle and their Java cryptography and C# cryptography resources https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk15on/1.70 The Bouncy Castle Cry

Post, Code and Quiet Time. How to do PGP encryption in Java? By Errong Leng – 22 Apr 2023 – View online → Photo by Allec Gomes / Unsplash In order to do PGP encryption, you need the PGP public key file. In this post I will tell how to encrypt data with PGP public key in Java. Dependencies Welcome to the home of the Legion of the Bouncy Castle. A fun place to stay, if you've got some time to kill. bouncycastle.org Home of open source libraries of the Legion of the Bouncy Castle and their Java cryptography and C# cryptography resources https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk15on/1.70 The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 and up. https://mvnrepository.com/artifact/org.bouncycastle/bcpkix-jdk15on/1.70 The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 and up. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs. Read PGPPublicKey from file Now we have The Bouncy Castle Java APIs, let's try to load the PGP public file into PGPPublicKey object. The main idea is iterator the keys in the ring collection and find the key isEncryptionKey. Encrypt Data Key points: PGPEncryptedDataGenerator::addMethod(new BcPublicKeyKeyEncryptionMethodGenerator(pgpPublicKey)); PGPLiteralDataGenerator::open That is it. Hope you find it helps. I will write another post for PGP decryption. Post, Code and Quiet Time. © 2023 – Unsubscribe

How to Generate your PGP Key pairs?

Strong recommend PGP Tool - Online PGP Key Generator Encryption Decryption Tool. Notes: All the required options are import to generate the key pairs. Especially the name, email address and passphrase are critical for PGP decryption. "Name <Email address>" will be the user id of the generated PGP private key. You will use it with passphrase to decrypt the encrypted message by PGP public key. I will write another 2 posts to guide how you can encrypt message using PGP public key and decrypt the

Post, Code and Quiet Time. How to Generate your PGP Key pairs? By Errong Leng – 22 Apr 2023 – View online → Photo by Christoph Nolte / Unsplash Strong recommend PGP Tool - Online PGP Key Generator Encryption Decryption Tool. Notes: All the required options are import to generate the key pairs. Especially the name, email address and passphrase are critical for PGP decryption. "Name <Email address>" will be the user id of the generated PGP private key. You will use it with passphrase to decrypt the encrypted message by PGP public key. I will write another 2 posts to guide how you can encrypt message using PGP public key and decrypt the data via PGP private key in Java. Stay tuned! PGP Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting, and decrypting texts, e-mails, files, directories, and whole disk partitions and to increase the security of e-mail communications. It was created by Phil Zimmermann in 1991. PGP and similar software follow the OpenPGP standard (RFC 4880) for encrypting and decrypting data. Source: Wikipedia PGP Tool - Online PGP Key Generator Encryption Decryption Tool A simple and secure online client-side PGP Key Generator, Encryption and Decryption tool. Generate your PGP Key pairs, encrypt or decrypt messages easily with a few clicks. Online PGP Key Generator Encryption Decryption Tool•Heiswayi Nrird, Bjar GPG GPG, or GNU Privacy Guard, is an open-source implementation of PGP encryption. It is functionally similar to PGP, but is available for free and can be used on a wider range of devices. GPG, or "GNU Privacy Guard", is a newer encryption software that was released in 1997. It works in a similar way to PGP, but offers more features and is more widely-used. It's also free and open source, which means that its code can be examined and modified by anyone. How to create GPG keypairs Creating GPG keypairs in Linux is a simple process, but understanding how it works can enhance your security. Enable Sysadmin•slauber PGP vs GPG Difference between PGP and GPG Difference between PGP and GPG - PGP and GPG are both very powerful tools for encrypting your data. Some differences are there between the two which you should be aware of before making a decision about which one to use. Read this article to find out more about PGP and GPG and how they are different… Technical Questions and Answers•Md. Sajid Post, Code and Quiet Time. © 2023 – Unsubscribe

How to get OAuth 2.0 access token with a certificate on the Microsoft identity platform?

if you are familiar with OAuth 2.0, you should know how to make the request to the token endpoint with client id, client secret, scope and grant type. Azure Active Directory (Azure AD) supports two types of authentication for service principals: password-based authentication (app secret) and certificate-based authentication. While app secrets can easily be created in the Azure portal or using a Microsoft API like Microsoft Graph, they're long-lived, and not as secure as certificates. It's there

Post, Code and Quiet Time. How to get OAuth 2.0 access token with a certificate on the Microsoft identity platform? By Errong Leng – 18 Apr 2023 – View online → Photo by Adam Przeniewski / Unsplash if you are familiar with OAuth 2.0, you should know how to make the request to the token endpoint with client id, client secret, scope and grant type. Azure Active Directory (Azure AD) supports two types of authentication for service principals: password-based authentication (app secret) and certificate-based authentication. While app secrets can easily be created in the Azure portal or using a Microsoft API like Microsoft Graph, they're long-lived, and not as secure as certificates. It's therefore recommended that your application uses a certificate rather than a secret. to be more secure, you might want to try with certificate-based authentication. According to this Microsoft Learn guide, the key part is to compute a client assertion from your ceritficate file. In another Microsoft Learn link, MSAL.NET has four methods to provide either credentials or assertions to the confidential client app. But how can you do the same compute in your Spring Boot java backend application as a OAuth 2.0 client? use Spring Boot Starter for Azure Active Directory? yup, Spring Boot Starter for Azure AD is a good fit for your java backend application if your app uses servelet. but you can't able to use if you used Reactive Spring WebFlux framework. Since spring-cloud-azure-starter-active-directory not support Reactive yet. Spring Boot Starter for Azure Active Directory developer’s guide This guide describes the features, issues, workarounds, and diagnostic steps to be aware of when you use the Azure Active Directory starter. Microsoft Learn•KarlErickson AadJwtEncoder.java it is easy to make the request that post application/x-www-form-urlencoded body with required query to the access token endpoint according to OAuth 2.0 spec. You can do it in declarative way using a WebClient. As you see, there is An assertion (a JSON web token) that you need to create and sign with the certificate you registered as credentials for your application. Though we can't use spring-cloud-azure-starter-active-directory in our Reactive Spring Boot app. but we still be able to use or refer to this AadJwtEncode::encode implementation and see how we can compute the client_assertion with the private key from your certificate. How spring-cloud-azure-starter-active-directory compute client_assertion? An assertion (a JSON web token) that you need to create and sign with the certificate you registered as credentials for your application. Read about certificate credentials to learn how to register your certificate and the format of the assertion. azure-sdk-for-java/AadJwtClientAuthenticationParametersConverter.java at main · Azure/azure-sdk-for-java This repository is for active development of the Azure SDK for Java. For consumers of the SDK we recommend visiting our public developer docs at https://docs.microsoft.com/java/azure/ or our versio... GitHub•Azure References OAuth 2.0 client credentials flow on the Microsoft identity platform - Microsoft Entra Build web applications by using the Microsoft identity platform implementation of the OAuth 2.0 authentication protocol. Microsoft Learn•OwenRichards1 Microsoft identity platform certificate credentials - Microsoft Entra This article discusses the registration and use of certificate credentials for application authentication. Microsoft Learn•OwenRichards1 Create a self-signed public certificate to authenticate your application - Microsoft Entra Create a self-signed public certificate to authenticate your application. Microsoft Learn•henrymbuguakiarie Post, Code and Quiet Time. © 2023 – Unsubscribe