1.cryptomator / cryptomator
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
+1,495 stars
from 14,918 · score 7.31
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6 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
2.beemdevelopment / Aegis
A free, secure and open source app for Android to manage your 2-step verification tokens.
+1,175 stars
from 12,269 · score 7.07
3.Peergos / Peergos
A p2p, secure file storage, social network and application protocol
+157 stars
from 2,389 · score 5.06
4.Password4j / password4j
Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.
+20 stars
from 418 · score 3.04
5.Hakky54 / ayza
🔐 An SSL library for configuring http client or server. Rich with features such as hot reloading ssl and trusting additional certificates during runtime, combining multiple keystores, loading pem files and os/jdk certificates, logging certificate information during ssl handshake, bypassing ssl configuration from other libraries and more
+13 stars
from 567 · score 2.64
6.Hakky54 / mutual-tls-ssl
🔐 Tutorial of setting up Security for your API with one way authentication with TLS/SSL and mutual authentication for a java based web server and a client with both Spring Boot. Different clients are provided such as Apache HttpClient, OkHttp, Spring RestTemplate, Spring WebFlux WebClient Jetty and Netty, the old and the new JDK HttpClient, the old and the new Jersey Client, Google HttpClient, Unirest, Retrofit, Feign, Methanol, vertx, Scala client Finagle, Featherbed, Dispatch Reboot, AsyncHttpClient, Sttp, Akka, Requests Scala, Http4s Blaze, Kotlin client Fuel, http4k, Kohttp and ktor. Also other server examples are available such as jersey with grizzly. Also gRPC, WebSocket and ElasticSearch examples are included
+8 stars
from 629 · score 2.20