diff --git a/FSCS630_Cryptography/labs/01_Cryptograph_Introduction/Cryptology_Introduction.pptx b/FSCS630_Cryptography/labs/01_Cryptograph_Introduction/1_Cryptology_Introduction.pptx similarity index 95% rename from FSCS630_Cryptography/labs/01_Cryptograph_Introduction/Cryptology_Introduction.pptx rename to FSCS630_Cryptography/labs/01_Cryptograph_Introduction/1_Cryptology_Introduction.pptx index a4caf3c..a154950 100644 Binary files a/FSCS630_Cryptography/labs/01_Cryptograph_Introduction/Cryptology_Introduction.pptx and b/FSCS630_Cryptography/labs/01_Cryptograph_Introduction/1_Cryptology_Introduction.pptx differ diff --git a/FSCS630_Cryptography/labs/03_Stream_cipher/Shift_Modular.pptx b/FSCS630_Cryptography/labs/01_Cryptograph_Introduction/2_Caesar_Modular.pptx similarity index 95% rename from FSCS630_Cryptography/labs/03_Stream_cipher/Shift_Modular.pptx rename to FSCS630_Cryptography/labs/01_Cryptograph_Introduction/2_Caesar_Modular.pptx index 2106739..0bfa12a 100644 Binary files a/FSCS630_Cryptography/labs/03_Stream_cipher/Shift_Modular.pptx and b/FSCS630_Cryptography/labs/01_Cryptograph_Introduction/2_Caesar_Modular.pptx differ diff --git a/FSCS630_Cryptography/labs/03_Stream_cipher/encrypted.TXT b/FSCS630_Cryptography/labs/01_Cryptograph_Introduction/encrypted.TXT similarity index 100% rename from FSCS630_Cryptography/labs/03_Stream_cipher/encrypted.TXT rename to FSCS630_Cryptography/labs/01_Cryptograph_Introduction/encrypted.TXT diff --git a/FSCS630_Cryptography/labs/02_History_Substitution/01_Substitution_Cipher_Intro.pptx b/FSCS630_Cryptography/labs/02_History_Substitution/01_Substitution_Cipher_Intro.pptx index ff92475..f6ff670 100644 Binary files a/FSCS630_Cryptography/labs/02_History_Substitution/01_Substitution_Cipher_Intro.pptx and b/FSCS630_Cryptography/labs/02_History_Substitution/01_Substitution_Cipher_Intro.pptx differ diff --git a/FSCS630_Cryptography/labs/03_Stream_cipher/XOR_Stream_Cipher.pptx b/FSCS630_Cryptography/labs/03_Stream_cipher/XOR_Stream_Cipher.pptx index eb14b6b..2043d9c 100644 Binary files a/FSCS630_Cryptography/labs/03_Stream_cipher/XOR_Stream_Cipher.pptx and b/FSCS630_Cryptography/labs/03_Stream_cipher/XOR_Stream_Cipher.pptx differ