PUBLIC KEY CRYPTOSYSTEMS Symmetric Cryptosystems 23/10/2015 | pag. 2.

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PUBLIC KEY CRYPTOSYSTEMS Symmetric Cryptosystems 23/10/2015 | pag. 2

Why? Cryptography 23/10/2015 | pag. 3

Why? Cryptography 23/10/2015 | pag. 4

Public Key Cryptosystems Cryptography 23/10/2015 | pag. 5 before.

Public Key Cryptosystems Cryptography 23/10/2015 | pag. 6 addressed by identification.

Public Key Cryptosystems Cryptography 23/10/2015 | pag. 7

Public Key Cryptosystems RSA Cryptosystem Rabin Encryption ElGamal Encryption (based on Diffie-Hellman Key Exchange) Cryptography 23/10/2015 | pag. 8

RSA Cryptography 23/10/2015 | pag. 9

RSA: Key generation Cryptography 23/10/2015 | pag. 10

RSA: Key generation Cryptography 23/10/2015 | pag. 11

RSA: Encryption Cryptography 23/10/2015 | pag. 12

RSA: Encryption – Block cipher Cryptography 23/10/2015 | pag. 13

RSA: Encryption – Block cipher Cryptography 23/10/2015 | pag. 14

RSA: Decryption Cryptography 23/10/2015 | pag. 15 We need a little of Fermat!

Intermezzo: Fermat’s Little Theorem Cryptography 23/10/2015 | pag. 16

Intermezzo: Fermat’s Little Theorem Cryptography 23/10/2015 | pag. 17

RSA: Decryption Cryptography 23/10/2015 | pag. 18

RSA: Decryption Cryptography 23/10/2015 | pag. 19

Example: RSA Cryptography 23/10/2015 | pag

Security of the RSA Cryptography 23/10/2015 | pag. 21

Rabin Encryption Cryptography 23/10/2015 | pag. 22

Rabin Encryption: Key generation Cryptography 23/10/2015 | pag. 23

Rabin Encryption: Encryption Cryptography 23/10/2015 | pag. 24

Rabin Encryption: Decryption Cryptography 23/10/2015 | pag. 25

Rabin Encryption: Decryption Cryptography 23/10/2015 | pag. 26