From 702aafd60398b40a384426eec38da535958ef839 Mon Sep 17 00:00:00 2001 From: Bill Buchanan Date: Mon, 2 Feb 2026 13:56:28 +0000 Subject: [PATCH] Change DES to 3DES in encryption instructions Updated instructions for 64-bit 3DES ECB encryption and modified the table headers accordingly. --- unit02_symmetric/lab/README.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/unit02_symmetric/lab/README.md b/unit02_symmetric/lab/README.md index 640c1f8..ce36a13 100644 --- a/unit02_symmetric/lab/README.md +++ b/unit02_symmetric/lab/README.md @@ -389,10 +389,10 @@ Now modify your coding for 256-bit AES ECB encryption so that you can enter the | 029c4dd71cdae632ec33e2be7674cc14 | “changeme”| | | d8f11e13d25771e83898efdbad0e522c | “123456”| | -Now modify your coding for 64-bit DES ECB encryption so that you can enter the ciphertext and an encryption key, and the code will decrypt to provide the result. You should use CMS for padding. With this, determine the plaintext for the following (note, all the plain text values are countries around the World): +Now modify your coding for 64-bit 3DES ECB encryption so that you can enter the ciphertext and an encryption key, and the code will decrypt to provide the result. You should use CMS for padding. With this, determine the plaintext for the following (note, all the plain text values are countries around the World): -| CMS Cipher (64-bit DES ECB) | Key | Plain text | +| CMS Cipher (64-bit 3DES ECB) | Key | Plain text | |-----------|-----------|-----------| | f37ee42f2267458d | “hello” | | | 67b7d1162394b868 | “ankle” | |