ENEE/CMSC/MATH456 Cryptography: Spring 2026 Lecture Summaries

• Lecture 1 (1/26, corresponds to pre-recorded Lecture 1).
• Lecture 2 (2/2, corresponds to pre-recorded Lecture 3). See also Class Exercise. Some additional notes here (Updated).
• Lecture 3 (2/4, corresponds to pre-recorded Lecture 4). See also Class Exercise Solutions. Some additional notes here (Updated).
• Lecture 4 (2/9, corresponds to pre-recorded Lecture 5). Some additional notes here.
• Lecture 5 (2/11, corresponds to pre-recorded Lecture 6). See also Class Exercise. See also Class Exercise Solutions. Some additional notes here (Updated).
• Lecture 6 and 7 (2/16 and 2/23, corresponds to pre-recorded Lecture 7). See also Class Exercise. Some additional notes here.
• Lecture 8 (2/25, corresponds to pre-recorded Lecture 8). See also Class Exercise Solutions. Some additional notes here.
• Lecture 9 (3/2, corresponds to pre-recorded Lecture 9 and 10). Some additional notes here (Updated).
• Lecture 10 (3/4, corresponds to pre-recorded Lecture 10 and 11). See also Class Exercise and Class Exercise Solutions. Some additional notes here (Updated).
• Lecture 11 (3/9, corresponds to pre-recorded Lecture 11 and 12). Some additional notes here.
• Lecture 12 (3/23, corresponds to pre-recorded Lecture 12 and 13). Some additional notes here (Updated).
• Lecture 13 and 14 (3/25 and 3/30, corresponds to pre-recorded Lectures 16 and 17). Some additional notes here and here. See also SPN Diagram.
• Lecture 15 (4/1, corresponds to pre-recorded Lecture 18). Some addtional notes here.
• Lecture 16 (4/6, corresponds to pre-recorded Lecture 19). Some addtional notes here.
• Lecture 17 (4/13, corresponds to pre-recorded Lecture 20 and 21). See also Class Exercise and Class Exercise Solutions. Some additional notes here (Updated).
• Lecture 18 (4/20, corresponds to pre-recorded Lecture 21 and 22). Some addtional notes here (Updated).
• Lecture 19 (4/22, corresponds to pre-recorded Lecture 23 and 24). Some additional notes here (Updated). Repeated Squaring algorithm for modular exponentiation is here.
• Lecture 20 (4/27, corresponds to pre-recorded Lecture 25 and optional Discrete-Log-based Signature lecture). Some additional notes here (Updated).
• Lecture 21 (4/29, corresponds to "Optional Special Topic Lattice-Based Cryptography"). Some additional notes here (Updated).
• Lecture 22 and 23 (5/4 and 5/6) Some additional notes here (Updated).