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Complexity Analysis of Euclidian Algorithm and RSA Cryptosystem Square and Multiply Algorithm, by Sugata Gangopadhyay

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Cryptanalysis and its Variants, Linear Attack, by Sugata Gangopadhyay

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Efficien Computation of Jacobi Symbol Primality Testing:Solovay-Stassen Algorithm, by Sugata Gangopadhyay

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Iterated Hash Functions, by Sugata Gangopadhyay

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Lecture 01-Introduction Caeser Cipher, by Sugata Gangopadhyay

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Lecture 02-Modular Arithmetic, Shift Cipher, by Sugata Gangopadhyay

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Lecture 03-Affine Cipher, Vigenere Cipher, by Sugata Gangopadhyay

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Lecture 04-Prefect Secrecy, Application of Shift Cipher, by Sugata Gangopadhyay

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Lecture 05-Problem discussion on Affine Cipher and Perfect Secrecy, by Sugata Gangopadhyay

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Lecture 1: Introduction to Cryptography., by Sourav Mukhopadhyay

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Lecture 10: Pseudorandom Sequence, by Sourav Mukhopadhyay

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Lecture 12: Mathematical background., by Sourav Mukhopadhyay

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Lecture 13: Abstract Algebra (contd.), by Sourav Mukhopadhyay

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Lecture 14: Number Theory, by Sourav Mukhopadhyay

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Lecture 15: Modular Inverse., by Sourav Mukhopadhyay

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Lecture 16: Modular Inverse, by Sourav Mukhopadhyay

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Lecture 17: Extended Euclid Algorithm, by Sourav Mukhopadhyay

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Lecture 18: Fermat’s Little Theorem, Eular PhiFunction, by Sourav Mukhopadhyay

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Lecture 19: Eular’s Theorem, Quadratic Residue, by Sourav Mukhopadhyay

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Lecture 2: Classical Cryptosystem., by Sourav Mukhopadhyay

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Lecture 20: Polynomial Arithmetic., by Sourav Mukhopadhyay

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Lecture 21: Advanced Encryption Standard (AES), by Sourav Mukhopadhyay

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Lecture 22: Advanced Encryption Standard (AES) (Contd.), by Sourav Mukhopadhyay

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Lecture 23: Introduction to Public Key Cryptosystem, Diffie-Hellman Key Exchange., by Sourav Mukhopadhyay

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Lecture 24: Knapsack Cryptosystem., by Sourav Mukhopadhyay

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Lecture 25: RSA Cryptosystem, by Sourav Mukhopadhyay

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Lecture 26: More on RSA, by Sourav Mukhopadhyay

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Lecture 27: Primarily Testing, by Sourav Mukhopadhyay

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Lecture 28: Elgamal Cryptosystem., by Sourav Mukhopadhyay

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Lecture 29: Elliptic Curve over the Reals, by Sourav Mukhopadhyay

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Lecture 3: Cryptanalysis on Substitution Cipher (Frequency Analysis) ., by Sourav Mukhopadhyay

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Lecture 30: Elliptic Curve Modulo a Prime., by Sourav Mukhopadhyay

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Lecture 31: Generalised ElGamal Public Key Cryptosystem, by Sourav Mukhopadhyay

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Lecture 32: Chinese Remainder Theorem, by Sourav Mukhopadhyay

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Lecture 33: Rabin Cryptosystem, by Sourav Mukhopadhyay

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Lecture 34: Legendre and Jacobi Symbol, by Sourav Mukhopadhyay

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Lecture 35: Jacobi Symbol (Contd.), by Sourav Mukhopadhyay

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Lecture 36: Message Authentication., by Sourav Mukhopadhyay

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Lecture 37: Digital Signature., by Sourav Mukhopadhyay

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Lecture 38 : Key Management., by Sourav Mukhopadhyay

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Lecture 39 : Key Exchange, by Sourav Mukhopadhyay

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Lecture 4: Play Fair Cipher., by Sourav Mukhopadhyay

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Lecture 40 : Hash Function, by Sourav Mukhopadhyay

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Lecture 41 : Universal Hashing., by Sourav Mukhopadhyay

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Lecture 42: Cryptographic Hash Function, by Sourav Mukhopadhyay

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Lecture 44: Digital Signature Standard (DSS), by Sourav Mukhopadhyay

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Lecture 45: More on Key Exchange Protocol, by Sourav Mukhopadhyay

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Lecture 46: Cryptanalysis, by Sourav Mukhopadhyay

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Lecture 47: Time-Memory Trade-Off Attack, by Sourav Mukhopadhyay

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Lecture 48: Differential Cryptanalysis, by Sourav Mukhopadhyay

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