Secure Socket Layer (SSL)
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The document presents an overview of Secure Socket Layer (SSL) technology. It discusses how SSL establishes encrypted connections to provide security and integrity. It describes SSL architecture including certificates, hashing, asymmetric and symmetric data transfer, and the SSL handshake process. It also covers encryption algorithms like RC4, AES, Triple DES, and RSA that are used. Finally, it discusses asymmetric key cryptography algorithms like Diffie-Hellman and RSA, as well as symmetric key cryptography and the future scope of encryption standards.
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The document provides an overview of a course on PKI (Public Key Infrastructure) technology. It outlines the topics that will be covered over two days, including secret key cryptography algorithms like AES and RSA, digital certificates, certificate authorities, and practical PKI applications like S/MIME, SSL, and IPSEC. The objectives of the course are to understand cryptographic fundamentals, public key infrastructure elements and how they interact, and why PKI is useful for enabling e-commerce and enhancing security.Web cryptography javascript
Web cryptography javascriptJose Manuel Ortega Candel
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The document discusses introducing cryptography concepts from a developer perspective using JavaScript. It covers authentication and encryption methods like AES, RSA, and hashing algorithms. It also discusses browser storage, the Web Cryptography API, cryptography libraries for JavaScript like CryptoJS, encrypting data on servers with Node.js, and tools for analyzing encryption. Practical examples are provided on implementing cryptography in apps.The Time-Consuming Task Of Preparing A Data Set For...
The Time-Consuming Task Of Preparing A Data Set For...Kimberly Thomas
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The document discusses preparing data sets for analysis in data mining and privacy preserving techniques. It states that preparing data sets is a time-consuming task that requires complex SQL queries, joining tables, and aggregating columns. Significant manual effort is needed to build data sets in a horizontal layout. It also discusses the need for privacy-preserving algorithms to protect sensitive data during the data mining process. The document proposes using case, pivot and SPJ methods to horizontally aggregate data, then employing a homomorphic encryption scheme to preserve privacy during the aggregations. Homomorphic encryption allows computations on encrypted data to produce an encrypted result that matches the result of operations on plaintext.Secrity project keyvan
Secrity project keyvanitrraincity
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1. Cryptography is used to provide security in electronic commerce by ensuring privacy, authenticity, and preventing forgery, alteration, eavesdropping and tracing of messages.
2. There are two main types of cryptography - symmetric which uses the same key for encryption and decryption, and asymmetric (public key) which uses different keys for encryption and decryption.
3. Common symmetric algorithms are DES and AES while RSA is an example of an asymmetric algorithm commonly used for digital signatures and encryption.Sw prezen3pdf
Sw prezen3pdfs1190088
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Encryption is used to secure private information such as credit card details, bank account information, and personal correspondence from unauthorized access. There are different types of encryption including symmetric key encryption where both parties use the same secret key, public key encryption which uses separate keys for encryption and decryption, and TLS which provides security for communications through protocols like SSL. Hash functions are also used for encryption through computing hash values from inputs and incorporating them into algorithms to detect tampering of data.Encryption Primer por Cathy Nolan
Encryption Primer por Cathy NolanJoao Galdino Mello de Souza
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The document provides an overview of encryption:
1) Encryption is the process of encoding information to prevent unauthorized access. It involves transforming plain text into ciphertext using cryptographic algorithms and encryption keys.
2) There are two main types of encryption - symmetric which uses the same key for encryption and decryption, and asymmetric which uses a public/private key pair.
3) When implementing encryption, organizations must determine what data needs protection, how it will be encrypted both in transit and at rest, and how encryption keys will be managed. Failure to properly manage keys could result in permanent data loss.Sw2 prezen3pdf
Sw2 prezen3pdfs1190088
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This document discusses different types of encryption used to secure information. It introduces symmetric key encryption, which uses the same key to encrypt and decrypt, and public key encryption, which uses separate keys. It also mentions TLS/SSL protocols for secure communication and hash functions, which are incorporated into algorithms to detect tampering and enable faster data processing and comparison.Secure Socket Layer (SSL)
- 1. Secure Socket Layer Project Presentation by: Dwiti Gajab Mihir Trivedi Aman Chaurasia
- 2. Contents: Cryptography and Secure Socket Layer (SSL) Establishment of Secured connection for Encryption Briefing on Asymmetric Encryption algorithms
- 3. Cryptography: Security and Integrity Encryption helps in achieving this. SSL is one such type of protocols. Its two main functions are: Encryption Identification
- 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.
- 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.
- 9. Encryption Algorithms: A B Computers agree how to encrypt ! 油 RC4 油 油 AES 油 HMAC- SHA Triple DES Diffie Hellman HAC- MD5 DES RSA 油 油 油 Hash Cipher Key 油 RC4 油 油 AES 油 HMAC- SHA Triple DES Diffie Hellman HAC- MD5 DES RSA 油 油 油 Hash Cipher Key
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- 15. Asymmetric Key Cryptography: Diffi Hellman algorithm Rivest, Shamir and Adleman (RSA) algorithm
- 16. Symmetric key Cryptography: Used for encryption of data. Substitution/Transposition/Simple round ciphers. Modern round ciphers: DES, Triple DES, AES
- 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
- 18. Any Questions??? Thank 額看顎