diff --git a/FSCS630_Cryptography/labs/Classic/Shift.pptx b/FSCS630_Cryptography/labs/Classic/Shift_Modular.pptx similarity index 95% rename from FSCS630_Cryptography/labs/Classic/Shift.pptx rename to FSCS630_Cryptography/labs/Classic/Shift_Modular.pptx index 6d214bf..2106739 100644 Binary files a/FSCS630_Cryptography/labs/Classic/Shift.pptx and b/FSCS630_Cryptography/labs/Classic/Shift_Modular.pptx differ diff --git a/FSCS630_Cryptography/labs/Classic/XOR.pptx b/FSCS630_Cryptography/labs/Classic/XOR_Stream_Cipher.pptx similarity index 100% rename from FSCS630_Cryptography/labs/Classic/XOR.pptx rename to FSCS630_Cryptography/labs/Classic/XOR_Stream_Cipher.pptx