diff --git a/README.md b/README.md
index 69d705e..5b5d8d7 100644
--- a/README.md
+++ b/README.md
@@ -102,6 +102,7 @@ A curated list of cryptography resources and links.
 
 ### Courses
 
+- [A Self-Study Course In Block-Cipher Cryptanalysis](https://www.schneier.com/academic/paperfiles/paper-self-study.pdf) -This paper attempts to organize the existing literature of block-cipher cryptanalysis in a way that students can use to learn cryptanalytic techniques and ways to break algorithms, by Bruce Schneier.
 - [Applied Cryptography](https://www.udacity.com/course/applied-cryptography--cs387) - Cryptography is present in everyday life, from paying with a credit card to using the telephone. Learn all about making and breaking puzzles in computing.
 - [Crypto Strikes Back!](https://www.youtube.com/watch?v=ySQl0NhW1J0) - This talk will cover crypto vulnerabilities in widely-deployed systems and how the smallest oversight resulted in catastrophe.
 - [Cryptography](https://www.coursera.org/learn/cryptography) - A practical oriented course in Cryptography by University of Maryland College Park.
@@ -121,7 +122,7 @@ A curated list of cryptography resources and links.
 - [certbot](https://github.com/certbot/certbot) - Previously the Let's Encrypt Client, is EFF's tool to obtain certs from Let's Encrypt, and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.
 - [cryptomator](https://github.com/cryptomator/cryptomator) - Multi-platform transparent client-side encryption of your files in the cloud.
 - [gpg](https://www.gnupg.org/) - Complete and free implementation of the OpenPGP standard. It allows to encrypt and sign your data and communication, features a versatile key management system. GnuPG is a command line tool with features for easy integration with other applications.
-- [ironssh](https://ironcorelabs.com/products/ironsftp) - End-to-end encrypt transferred files using sftp/scp and selectively share with others. Automatic key management works with any SSH server. Encrypted files are gpg compatible.
+- [ironssh](https://github.com/IronCoreLabs/ironssh) - End-to-end encrypt transferred files using sftp/scp and selectively share with others. Automatic key management works with any SSH server. Encrypted files are gpg compatible.
 - [Nipe](https://github.com/GouveaHeitor/nipe) - Nipe is a script to make Tor Network your default gateway.
 
 ### Plugins