Good morning, I managed to separate the SecureSession code out of Mushroom and I have published it into the SqueakSource Cryptography repository. Version 4 is this release, though I expect name refactoring to occur, so just take the latest. This requires the loading of Cryptography, though I did not set a package dependency in Monticello for SecureSession. Should I? Note to Pharo: Please load version 37 of Cryptography. WARNING: the Performance test will fail without the crypto plugins installed. Resulting performance data, with and without crypto plugins...there is 275% increase in performance with crypto plugins. With crypto plugins: 100 KB data chunks received: 10 send time: 272 ms, rate: 3.676 MB/sec. receive time: 600 ms. rate: 1.667 MB/sec. Without crypto plugins: 100 KB data chunks received: 1 send time: 8469 ms, rate: 0.012 MB/sec. receive time: 17233 ms. rate: 0.006 MB/sec. Regards, Robert