Trabalho de Topicos III

Universidade Federal de Santa Catarina

Desenvolvido por

Matheus Francisco Batista Machado

Ramon Tramontin

pdf-explicando - PDF da explicando o problema a ser desenvolvido.

1. Implement the RSA cryptographic scheme.

• Encryption application: The user enters a text (.txt) and a public key. The application returns an encrypted text (.txt) through the RSA encryption scheme.

• Application of decrypt: The user enters with a text (encrypted .txt) and your private key. The application returns a decrypted text (.txt).

2. Implement the digital signature via RSA.

• Signature application: The user enters a text (.txt) and with your private key. The application returns the the text (another .txt).

• Signature verification application: User enters with a text (.txt), enters a signature on that text (.txt), and enter with the public key of who signed. The application returns YES (signature is valid) or NO (signature is invalid).

3. Implement the Di? E-Hellman distribution scheme.

Let us suppose that A wants to send a message m to B, and that there is a public key (p, α), where p is a large prime number and α is a Zp generator