📄️ 2_0_legacyCode 2.1, Figure 2.2:📄️ 2_1_binaryCode 2.2, Figure 2.3:📄️ Exercise 2.1Calculation📄️ 2_2_hash1dCode 2.3, Figure 2.4:📄️ 2_3_hash2d3dCode 2.4, Figure 2.7: