This presentation summarizes Secure Socket Layer (SSL) technology. It discusses how SSL uses encryption to provide security and integrity for data transmission. The presentation covers SSL architecture, including the certificate and hashing components. It also describes the SSL handshake process and how symmetric and asymmetric encryption algorithms are used to securely transfer data. Common algorithms like RSA, Diffie-Hellman, DES, and AES are also mentioned.

1. “Secure Socket Layer”
Project Presentation by:
 Dwiti Gajab
 Mihir Trivedi
 Aman Chaurasia
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2. Contents:
 Cryptography and Secure Socket Layer
(SSL)
 Establishment of Secured connection for “Encryption”
 Briefing on Asymmetric Encryption algorithms
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3. Cryptography:
 Security and Integrity
 Encryption helps in achieving this.
 SSL is one such type of protocols. Its two main
functions are:
 Encryption
 Identification
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4. Why SSL exists?
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5. SSL Architecture:
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6. Few terms:
 Certificate:
- It is used to authenticate the website.
- Issued by Certificate Authority (CA).
- Mainly contains:
 Public Key
 Digital Signature
 Hashing:
- It is a process that compresses text to a single number.
- Used in a certificate and in SSL handshaking.
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7. Data Transfer:
 Asymmetric Data Transfer
- Used in handshaking
- Two Keys are involved:
 Public Key: It is used to encrypt.
 Private Key: It is used to decrypt.
 Symmetric Data Transfer
 Used in application data transfer.
 Same key is used in encryption & decryption.
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8. SSL Handshaking:
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9. Encryption Algorithms:
Computers agree how to encrypt !
A B
Key Cipher Hash Key Cipher Hash
RSA DES HAC- MD5
RSA DES HAC- MD5
Diffie Hellman Triple DES HMAC- SHA Diffie Hellman Triple DES HMAC- SHA
AES AES
RC4 RC4
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15. Asymmetric Key Cryptography:
 Diffi Hellman algorithm
 Rivest, Shamir and Adleman (RSA) algorithm
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16. Symmetric key Cryptography:
 Used for encryption of data.
 Substitution/Transposition/Simple round ciphers.
 Modern round ciphers: DES, Triple DES, AES
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17. Future Scope:
 Development of RSA algorithm for better security.
References:
 Data communication and Networking, 4E, by Behrouz A.
Forouzan
 Computer Networks by Ross & Kurose
 Network Security IOS by CISCO.
 http://en.wikipedia.org/wiki/Secure_Sockets_Layer
 http://httpd.apache.org/docs/2.0/ssl/ssl_intro.html
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18. Any Questions???
Thank You…
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