Cloud computing and security 02
•Download as PPTX, PDF•
1 like•102 views
Basics of security including principles, various types of attacks, introduction to some basic network security terms like 'cryptography'.
Report
Share
Report
Share
Recommended
3min tech talk on cryptography
Cryptography is the art of securing messages through encryption to make them immune to attacks. It addresses issues of confidentiality, end-point authentication, message integrity, nonrepudiation, and entity authentication. Cryptography algorithms can be divided into symmetric key algorithms like DES and AES that use secret keys, and asymmetric key algorithms like RSA that use public keys. Famous cryptography algorithms and ciphers include DES, AES, and RSA, and they find applications in banking, commerce, records, networking, and government/military uses to keep secrets secret.
Ss
Computer encryption uses cryptography to secure online transactions. There are two main types of encryption: symmetric-key encryption where both computers share the same key, and public-key encryption which uses different keys for encryption and decryption. Encryption encodes data during transmission while authentication verifies the identity of the sender and confirms the data has not been altered. Together, encryption and authentication create a secure online environment for sharing information.
S&Wweek12
Encryption is used to secure information transmitted online. It works by encoding information using a key so that only someone with the key can decode it. There are two main types of encryption: symmetric-key encryption which uses the same key to encrypt and decrypt, and asymmetric or public-key encryption which uses two different but linked keys, a private key and a public key. Public-key encryption involves encrypting a symmetric key with the recipient's public key and then encrypting the message with the symmetric key. A popular implementation of public-key encryption is Secure Sockets Layer (SSL) which transmits sensitive information securely over the internet.
Encryption.ppt
This document provides an introduction to encryption. It defines encryption as the process of converting data into an unrecognizable form. Encryption is important for achieving data security and privacy. It allows users to securely protect passwords, personal data, and ensure files have not been altered. Examples of encryption applications include web browsing, email, and hard drive encryption. The document then describes how encryption works by encrypting a message using an encryption key. It also outlines different encryption methods like hashing, symmetric, and asymmetric encryption.
Encryption technology
The document discusses encryption technology and its importance for securing electronic data. It describes how encryption works using encryption keys to scramble plaintext into ciphertext. Symmetric key algorithms like DES and asymmetric key algorithms like RSA are explained. The document also covers digital signatures, latest encryption methods like virtual matrix encryption, and quantum cryptography. It concludes that encryption technology is an emerging field with better, more secure algorithms being developed to transfer information securely over networks.
Cloud Computing Presentation
This document discusses network security considerations for cloud computing. It begins with an introduction to different cloud deployment models including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It then covers each model in more detail, describing features and benefits. The document also discusses virtualization techniques, risks of cloud computing including loss of control and operational risks, and security best practices such as host hardening and securing inter-host communication. Standard organizations developing cloud computing security standards are also mentioned.
Vision20of20smart20home20report
The document discusses the vision for a smart home of the future enabled by mobile connectivity. It predicts that the average home will contain 15-30 connected devices and sensors linked through a home network and to backend systems. These devices will range from appliances to utility meters that generate and consume electricity. The combined market for smart metering, home automation and energy management is estimated to exceed $44 billion by 2016. Mobile connectivity will be crucial to connecting devices and providing remote access and control via mobile handsets. The smart home vision is expected to deliver services around utilities monitoring, home automation, security, medical monitoring and entertainment through connected devices and the data they provide.
data storage security technique for cloud computing
Stenographic approach to ensure data storage security in cloud computing using Huffman coding. The system embeds data into images using steganography after encoding the data and frequency of characters using Huffman coding. This is done to provide security when storing data in the cloud. The encoding and embedding processes ensure the data is not readable without the decoding algorithm and Huffman tree, providing protection from unauthorized access.
Recommended
3min tech talk on cryptography
Cryptography is the art of securing messages through encryption to make them immune to attacks. It addresses issues of confidentiality, end-point authentication, message integrity, nonrepudiation, and entity authentication. Cryptography algorithms can be divided into symmetric key algorithms like DES and AES that use secret keys, and asymmetric key algorithms like RSA that use public keys. Famous cryptography algorithms and ciphers include DES, AES, and RSA, and they find applications in banking, commerce, records, networking, and government/military uses to keep secrets secret.
Ss
Computer encryption uses cryptography to secure online transactions. There are two main types of encryption: symmetric-key encryption where both computers share the same key, and public-key encryption which uses different keys for encryption and decryption. Encryption encodes data during transmission while authentication verifies the identity of the sender and confirms the data has not been altered. Together, encryption and authentication create a secure online environment for sharing information.
S&Wweek12
Encryption is used to secure information transmitted online. It works by encoding information using a key so that only someone with the key can decode it. There are two main types of encryption: symmetric-key encryption which uses the same key to encrypt and decrypt, and asymmetric or public-key encryption which uses two different but linked keys, a private key and a public key. Public-key encryption involves encrypting a symmetric key with the recipient's public key and then encrypting the message with the symmetric key. A popular implementation of public-key encryption is Secure Sockets Layer (SSL) which transmits sensitive information securely over the internet.
Encryption.ppt
This document provides an introduction to encryption. It defines encryption as the process of converting data into an unrecognizable form. Encryption is important for achieving data security and privacy. It allows users to securely protect passwords, personal data, and ensure files have not been altered. Examples of encryption applications include web browsing, email, and hard drive encryption. The document then describes how encryption works by encrypting a message using an encryption key. It also outlines different encryption methods like hashing, symmetric, and asymmetric encryption.
Encryption technology
The document discusses encryption technology and its importance for securing electronic data. It describes how encryption works using encryption keys to scramble plaintext into ciphertext. Symmetric key algorithms like DES and asymmetric key algorithms like RSA are explained. The document also covers digital signatures, latest encryption methods like virtual matrix encryption, and quantum cryptography. It concludes that encryption technology is an emerging field with better, more secure algorithms being developed to transfer information securely over networks.
Cloud Computing Presentation
This document discusses network security considerations for cloud computing. It begins with an introduction to different cloud deployment models including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It then covers each model in more detail, describing features and benefits. The document also discusses virtualization techniques, risks of cloud computing including loss of control and operational risks, and security best practices such as host hardening and securing inter-host communication. Standard organizations developing cloud computing security standards are also mentioned.
Vision20of20smart20home20report
The document discusses the vision for a smart home of the future enabled by mobile connectivity. It predicts that the average home will contain 15-30 connected devices and sensors linked through a home network and to backend systems. These devices will range from appliances to utility meters that generate and consume electricity. The combined market for smart metering, home automation and energy management is estimated to exceed $44 billion by 2016. Mobile connectivity will be crucial to connecting devices and providing remote access and control via mobile handsets. The smart home vision is expected to deliver services around utilities monitoring, home automation, security, medical monitoring and entertainment through connected devices and the data they provide.
data storage security technique for cloud computing
Stenographic approach to ensure data storage security in cloud computing using Huffman coding. The system embeds data into images using steganography after encoding the data and frequency of characters using Huffman coding. This is done to provide security when storing data in the cloud. The encoding and embedding processes ensure the data is not readable without the decoding algorithm and Huffman tree, providing protection from unauthorized access.
Attaining data security in cloud computing
This document discusses attaining data security in cloud computing. It aims to address security issues like insider attacks and identity theft. The challenges of storing data across distributed cloud systems while maintaining integrity and control are examined. Traditional cryptographic techniques like encryption, decryption, and digital signatures are explored as well as symmetric and asymmetric ciphers. A system model involving users, cloud service providers, and third party auditors is proposed. Simulation tools and references are also provided.
Firechat[2]
Firechat is a chat application, which can work even without internet where there is no network coverage. It is helpful in the areas where our mobile communication fails to work.
Cloud Computing Security
The document discusses security issues related to cloud computing. It provides an introduction to cloud computing, discussing its evolution and key concepts. The majority of the document focuses on security challenges in cloud computing, addressing issues such as administrative access to servers and applications, virtual machine vulnerabilities, encryption and data protection, and identity management. It also discusses security advantages and disadvantages of cloud environments.
Cloud Computing Security Issues
This presentation will give complete information regarding security issues related to cloud computing. To learn cloud computing fill up a simple form.
http://bit.ly/aDegGN
Ensuring data security in cloud computing. - Anusha Tuke
This document discusses ensuring data storage security in cloud computing. It begins by defining cloud computing and noting the security challenges it poses since users lose control of their data. It then proposes a distributed scheme using error-correcting codes to ensure correctness of user data in the cloud while supporting dynamic operations like updates, deletes and appends. The scheme provides data error localization. Analysis shows it is efficient and resilient against attacks while reducing overhead compared to replication techniques.
Cloud Security - Security Aspects of Cloud Computing
The document discusses security aspects of cloud computing. It outlines the essential characteristics of cloud computing including on-demand service, broad network access, resource pooling and others. It also describes different service models, deployment models and common cloud examples. The document then discusses top security concerns for cloud computing including threats from abuse and nefarious use, insecure interfaces, malicious insiders, shared technology issues and others. It provides guidance on security best practices when operating in the cloud.
Cloud Computing Security
This document discusses the history and definitions of cloud computing. It begins with various definitions of cloud computing from Wikipedia between 2007-2009 which evolved to emphasize dynamically scalable virtual resources provided over the internet. It then covers common characteristics of cloud computing like multi-tenancy, location independence, pay-per-use pricing and rapid scalability. The rest of the document details cloud computing models including public, private and hybrid clouds. It also outlines the different architectural layers of cloud computing from Software as a Service to Infrastructure as a Service. The document concludes with a discussion of security issues in cloud computing and a case study of security features in Amazon Web Services.
Cloud security ppt
This document discusses cloud security and provides an overview of McAfee's cloud security solutions. It summarizes McAfee's cloud security program, strengths, weaknesses, opportunities, threats, and competitors in the cloud security market. It also discusses Netflix's migration to the cloud for its infrastructure and content delivery and outlines Netflix's cloud security strategy.
Cloud computing security issues and challenges
This document discusses security issues and challenges in cloud computing. It outlines the three main cloud deployment models (private, public, hybrid cloud) and three service delivery models (IaaS, PaaS, SaaS). Key challenges discussed include costing and charging models, service level agreements, interoperability issues, and security concerns such as data loss and unauthorized access. While cloud computing provides benefits, the document cautions that security risks must be carefully understood and addressed for its safe adoption.
Cloud security and security architecture
This document discusses security architecture in cloud computing. It provides an overview of cloud risk assessments and how they differ from traditional assessments. It also compares cloud security architectures to traditional security architectures. Finally, it outlines the key domains covered by the Cloud Security Alliance, including governance, operations, and others.
Data security in cloud computing
Cloud computing provides a way for organizations to share distributed resources over a network. However, data security is a major concern in cloud computing since data is stored remotely. The document discusses several techniques used for data security in cloud computing including authentication, encryption, data masking, and data traceability. The latest technologies discussed are a cloud information gateway that can control data transmission and secure logic migration that transfers applications to an internal sandbox for secure execution.
Enterprise Cloud Security - Concepts Mash-up
Dileep Kalidindi presented on securing enterprise and cloud applications. He began with an overview of common cyber threats and their impact. He then discussed cryptography concepts like hashing, symmetric and asymmetric encryption. Next, he covered considerations for securing data in the cloud, including issues around data residency, encryption key management and shared infrastructure vulnerabilities. Finally, he outlined secure coding practices for Java like preventing injection attacks and cross-site scripting, and discussed penetration testing tools and methodologies.
Introduction To PKI Technology
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.
6. cryptography
The document discusses cryptography concepts such as encryption algorithms, key management, digital signatures, and cryptanalysis attacks. It covers symmetric and asymmetric cryptographic systems as well as specific algorithms like DES, RSA, and elliptic curve cryptography. The document also examines requirements for secrecy, authenticity and properties of cryptographic systems.
security issue
This document discusses security issues related to mobile technology. It begins by explaining the importance of understanding threats when building a security system. It then discusses different types of attacks like interception, modification, and interruption that can target both static and dynamic assets. The document also covers security concepts like confidentiality, integrity, authorization, and availability. It explains symmetric and asymmetric encryption techniques as well as protocols like SSL, TLS, and WTLS that use these techniques to securely transmit data over networks.
Cryptography
Cryptography involves encrypting and decrypting information using algorithms and keys. There are two main types: public key cryptography uses different keys for encryption and decryption while private (symmetric) key cryptography uses the same key. Digital signatures provide authentication by encrypting a hash of a message with a private key so receivers can validate the sender. Key management and distribution present challenges to ensure secrecy and prevent unauthorized access.
Computersystemssecurity 090529105555-phpapp01
Computer security involves protecting digital information and systems from theft or damage. Common threats include hackers, viruses, spyware, and identity theft. Effective security uses encryption, firewalls, antivirus software, strong passwords, and user awareness. Security measures should be appropriate for the type of network, such as basic protections for homes and strong physical security for government systems.
Computer Systems Security
Computer systems security involves protecting digital information from threats like identity theft, hackers, viruses, and data breaches. Key aspects of security include encryption, firewalls, VPNs, email security, web security, wireless security, and securing applications and computers. Proper security requires awareness of threats and using tools like antivirus software, firewalls, access controls, encryption, and regular updates and backups.
Encryption Primer por Cathy Nolan
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.
Cryptography
The document discusses various cryptographic concepts and algorithms. It begins with basic terms in cryptography like plain text, cipher text, encryption, decryption, and keys. It then explains symmetric and asymmetric key cryptography. Specific algorithms discussed include MD5, SHA-1, SHA-256, RIPEMD-160, and crypt. Code examples are provided to demonstrate generating hashes using these algorithms.
E-commerce- Security & Encryption
This document discusses dimensions of e-commerce security including integrity, non-denial, authenticity, confidentiality, privacy and availability. It also outlines security threats such as malicious code, phishing, hacking and credit card fraud. Finally, it describes various technology solutions for protecting internet communications through encryption, securing communication channels using SSL and VPNs, protecting networks with firewalls, and protecting servers and clients with access controls and anti-virus software.
Data encryption algorithm(edit)
The document discusses data encryption algorithms and their importance for securing communications. It describes several common algorithms such as DES, 3DES, AES, Blowfish, and RSA. These algorithms encrypt data to make it secure during transmission and storage. The document also differentiates between symmetric and asymmetric encryption algorithms, and discusses factors like key size, encryption speed, and security level. It concludes that data encryption algorithms provide critical security and ensure availability of data.
More Related Content
Viewers also liked
Attaining data security in cloud computing
This document discusses attaining data security in cloud computing. It aims to address security issues like insider attacks and identity theft. The challenges of storing data across distributed cloud systems while maintaining integrity and control are examined. Traditional cryptographic techniques like encryption, decryption, and digital signatures are explored as well as symmetric and asymmetric ciphers. A system model involving users, cloud service providers, and third party auditors is proposed. Simulation tools and references are also provided.
Firechat[2]
Firechat is a chat application, which can work even without internet where there is no network coverage. It is helpful in the areas where our mobile communication fails to work.
Cloud Computing Security
The document discusses security issues related to cloud computing. It provides an introduction to cloud computing, discussing its evolution and key concepts. The majority of the document focuses on security challenges in cloud computing, addressing issues such as administrative access to servers and applications, virtual machine vulnerabilities, encryption and data protection, and identity management. It also discusses security advantages and disadvantages of cloud environments.
Cloud Computing Security Issues
This presentation will give complete information regarding security issues related to cloud computing. To learn cloud computing fill up a simple form.
http://bit.ly/aDegGN
Ensuring data security in cloud computing. - Anusha Tuke
This document discusses ensuring data storage security in cloud computing. It begins by defining cloud computing and noting the security challenges it poses since users lose control of their data. It then proposes a distributed scheme using error-correcting codes to ensure correctness of user data in the cloud while supporting dynamic operations like updates, deletes and appends. The scheme provides data error localization. Analysis shows it is efficient and resilient against attacks while reducing overhead compared to replication techniques.
Cloud Security - Security Aspects of Cloud Computing
The document discusses security aspects of cloud computing. It outlines the essential characteristics of cloud computing including on-demand service, broad network access, resource pooling and others. It also describes different service models, deployment models and common cloud examples. The document then discusses top security concerns for cloud computing including threats from abuse and nefarious use, insecure interfaces, malicious insiders, shared technology issues and others. It provides guidance on security best practices when operating in the cloud.
Cloud Computing Security
This document discusses the history and definitions of cloud computing. It begins with various definitions of cloud computing from Wikipedia between 2007-2009 which evolved to emphasize dynamically scalable virtual resources provided over the internet. It then covers common characteristics of cloud computing like multi-tenancy, location independence, pay-per-use pricing and rapid scalability. The rest of the document details cloud computing models including public, private and hybrid clouds. It also outlines the different architectural layers of cloud computing from Software as a Service to Infrastructure as a Service. The document concludes with a discussion of security issues in cloud computing and a case study of security features in Amazon Web Services.
Cloud security ppt
This document discusses cloud security and provides an overview of McAfee's cloud security solutions. It summarizes McAfee's cloud security program, strengths, weaknesses, opportunities, threats, and competitors in the cloud security market. It also discusses Netflix's migration to the cloud for its infrastructure and content delivery and outlines Netflix's cloud security strategy.
Cloud computing security issues and challenges
This document discusses security issues and challenges in cloud computing. It outlines the three main cloud deployment models (private, public, hybrid cloud) and three service delivery models (IaaS, PaaS, SaaS). Key challenges discussed include costing and charging models, service level agreements, interoperability issues, and security concerns such as data loss and unauthorized access. While cloud computing provides benefits, the document cautions that security risks must be carefully understood and addressed for its safe adoption.
Cloud security and security architecture
This document discusses security architecture in cloud computing. It provides an overview of cloud risk assessments and how they differ from traditional assessments. It also compares cloud security architectures to traditional security architectures. Finally, it outlines the key domains covered by the Cloud Security Alliance, including governance, operations, and others.
Data security in cloud computing
Cloud computing provides a way for organizations to share distributed resources over a network. However, data security is a major concern in cloud computing since data is stored remotely. The document discusses several techniques used for data security in cloud computing including authentication, encryption, data masking, and data traceability. The latest technologies discussed are a cloud information gateway that can control data transmission and secure logic migration that transfers applications to an internal sandbox for secure execution.
Viewers also liked (11)
Ensuring data security in cloud computing. - Anusha Tuke
Ensuring data security in cloud computing. - Anusha Tuke
Cloud Security - Security Aspects of Cloud Computing
Cloud Security - Security Aspects of Cloud Computing
Similar to Cloud computing and security 02
Enterprise Cloud Security - Concepts Mash-up
Dileep Kalidindi presented on securing enterprise and cloud applications. He began with an overview of common cyber threats and their impact. He then discussed cryptography concepts like hashing, symmetric and asymmetric encryption. Next, he covered considerations for securing data in the cloud, including issues around data residency, encryption key management and shared infrastructure vulnerabilities. Finally, he outlined secure coding practices for Java like preventing injection attacks and cross-site scripting, and discussed penetration testing tools and methodologies.
Introduction To PKI Technology
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.
6. cryptography
The document discusses cryptography concepts such as encryption algorithms, key management, digital signatures, and cryptanalysis attacks. It covers symmetric and asymmetric cryptographic systems as well as specific algorithms like DES, RSA, and elliptic curve cryptography. The document also examines requirements for secrecy, authenticity and properties of cryptographic systems.
security issue
This document discusses security issues related to mobile technology. It begins by explaining the importance of understanding threats when building a security system. It then discusses different types of attacks like interception, modification, and interruption that can target both static and dynamic assets. The document also covers security concepts like confidentiality, integrity, authorization, and availability. It explains symmetric and asymmetric encryption techniques as well as protocols like SSL, TLS, and WTLS that use these techniques to securely transmit data over networks.
Cryptography
Cryptography involves encrypting and decrypting information using algorithms and keys. There are two main types: public key cryptography uses different keys for encryption and decryption while private (symmetric) key cryptography uses the same key. Digital signatures provide authentication by encrypting a hash of a message with a private key so receivers can validate the sender. Key management and distribution present challenges to ensure secrecy and prevent unauthorized access.
Computersystemssecurity 090529105555-phpapp01
Computer security involves protecting digital information and systems from theft or damage. Common threats include hackers, viruses, spyware, and identity theft. Effective security uses encryption, firewalls, antivirus software, strong passwords, and user awareness. Security measures should be appropriate for the type of network, such as basic protections for homes and strong physical security for government systems.
Computer Systems Security
Computer systems security involves protecting digital information from threats like identity theft, hackers, viruses, and data breaches. Key aspects of security include encryption, firewalls, VPNs, email security, web security, wireless security, and securing applications and computers. Proper security requires awareness of threats and using tools like antivirus software, firewalls, access controls, encryption, and regular updates and backups.
Encryption Primer por Cathy Nolan
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.
Cryptography
The document discusses various cryptographic concepts and algorithms. It begins with basic terms in cryptography like plain text, cipher text, encryption, decryption, and keys. It then explains symmetric and asymmetric key cryptography. Specific algorithms discussed include MD5, SHA-1, SHA-256, RIPEMD-160, and crypt. Code examples are provided to demonstrate generating hashes using these algorithms.
E-commerce- Security & Encryption
This document discusses dimensions of e-commerce security including integrity, non-denial, authenticity, confidentiality, privacy and availability. It also outlines security threats such as malicious code, phishing, hacking and credit card fraud. Finally, it describes various technology solutions for protecting internet communications through encryption, securing communication channels using SSL and VPNs, protecting networks with firewalls, and protecting servers and clients with access controls and anti-virus software.
Data encryption algorithm(edit)
The document discusses data encryption algorithms and their importance for securing communications. It describes several common algorithms such as DES, 3DES, AES, Blowfish, and RSA. These algorithms encrypt data to make it secure during transmission and storage. The document also differentiates between symmetric and asymmetric encryption algorithms, and discusses factors like key size, encryption speed, and security level. It concludes that data encryption algorithms provide critical security and ensure availability of data.
Ericas-Security-Plus-Study-Guide
This document provides a study guide for the Security+ certification exam, covering topics such as:
- Symmetric and asymmetric encryption algorithms including AES, DES, RSA, and Diffie-Hellman.
- Network security devices like firewalls, routers, switches and their functions.
- Common ports and protocols including FTP, SSH, SMTP, HTTP, SNMP, LDAP.
- Authentication methods like Kerberos, CHAP, certificates, usernames/passwords and tokens.
- Other security concepts and attacks like hashing, PKI, DoS, spoofing, replay and man-in-the-middle.
- Access controls including MAC, DAC, RBAC and their characteristics.
Overview Of Cryptography
Cryptography is a method of securing communication and information by encoding messages in such a way that only authorized parties can access it. It involves encrypting plaintext using an algorithm and key to create ciphertext, which can then be decrypted using the same key. Common uses of cryptography include ensuring data privacy, authenticity, integrity, and non-repudiation. Symmetric key encryption uses the same key for encryption and decryption while asymmetric key encryption uses different public and private keys.
Cryptography
Cryptography is a method of protecting information through codes so that only intended recipients can access it. It provides confidentiality, integrity, accuracy, and authentication. There are two main categories: symmetric cryptography which uses the same key for encryption and decryption, and asymmetric cryptography which uses different public and private keys. Encryption converts plain text into cipher text while decryption reverses the process. Cryptography has applications in defense, e-commerce, banking, and other areas where secure transmission of information is needed.
Cryptography - An Overview
I presented this overview lecture at Computer Applications for the 21st century – Synergies and Vistas organized by Vidyasagar College, Kolkata in 2008
The Time-Consuming Task Of Preparing A Data Set For...
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.
10 system.security.cryptography
This document outlines concepts related to system security and cryptography. It discusses security requirements like confidentiality, integrity, and authentication. It also explains different security mechanisms like symmetric and asymmetric encryption, hash functions, digital signatures, and their uses in message authentication and non-repudiation. Public key infrastructure and entity authentication using random numbers are also mentioned.
Achieving data integrity by forming the digital signature using RSA and SHA-1...
This document discusses achieving data integrity through digital signatures using the RSA and SHA-1 algorithms. It first provides background on data integrity and cryptography. It then explains the RSA algorithm for public key encryption and digital signatures. The document describes an implementation of RSA and SHA-1 to encrypt messages and generate message digests at the sender and receiver ends to verify data integrity by ensuring the digests match. Graphical interfaces are provided to enhance understanding and the system is designed with client and server architecture to demonstrate the process across different computers.
Cryptography : The Art of Secured Messaging
Cryptography is the art of securing messages by encrypting information into an unreadable cipher text format that can only be decrypted by those with the secret key. Modern cryptography techniques are virtually unbreakable. Cryptography is commonly used to protect email, credit cards, and corporate data on the internet. There are two main types of cryptography - symmetric which uses one shared key for encryption and decryption, and asymmetric which uses two mathematically related keys, a public and private key. Cryptography ensures confidentiality, integrity, and authenticity of messages.
Review on variants of Security aware AODV
Mobile ad-hoc network (MANET) is very sensitive network to security due to challenging characteristic such as decentralization, dynamic changing topology, and neighbor based routing. All existing MANET protocol are simply trust their neighbor and make route through them due to neighbor based routing network is disturbed by malicious node or intruder. Trust calculation is challenging task due to computation complexity constraints in MANET. In this paper we have presented variants of trust based security protocol in an on demand distance vector routing protocol and also proposed new mechanism for Network coding with RSA based Encryption and Decryption in an AODV which will improve the security level of MANET with acceptable overhead limit.
Similar to Cloud computing and security 02 (20)
The Time-Consuming Task Of Preparing A Data Set For...
The Time-Consuming Task Of Preparing A Data Set For...
Achieving data integrity by forming the digital signature using RSA and SHA-1...
Achieving data integrity by forming the digital signature using RSA and SHA-1...
Recently uploaded
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
The History of NZ 1870-1900.
Making of a Nation.
From the NZ Wars to Liberals,
Richard Seddon, George Grey,
Social Laboratory, New Zealand,
Confiscations, Kotahitanga, Kingitanga, Parliament, Suffrage, Repudiation, Economic Change, Agriculture, Gold Mining, Timber, Flax, Sheep, Dairying,
Gender and Mental Health - Counselling and Family Therapy Applications and In...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Wound healing PPT
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
Benner "Expanding Pathways to Publishing Careers"
This presentation was provided by Rebecca Benner, Ph.D., of the American Society of Anesthesiologists, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
Practical manual for National Examination Council, Nigeria.
Contains guides on answering questions on the specimens provided
Lifelines of National Economy chapter for Class 10 STUDY MATERIAL PDF
The chapter Lifelines of National Economy in Class 10 Geography focuses on the various modes of transportation and communication that play a vital role in the economic development of a country. These lifelines are crucial for the movement of goods, services, and people, thereby connecting different regions and promoting economic activities.
HYPERTENSION - SLIDE SHARE PRESENTATION.
IT WILL BE HELPFULL FOR THE NUSING STUDENTS
IT FOCUSED ON MEDICAL MANAGEMENT AND NURSING MANAGEMENT.
HIGHLIGHTS ON HEALTH EDUCATION.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
Stack Memory Organization of 8086 Microprocessor
The stack memory organization of 8086 microprocessor.
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Physical pharmaceutics notes for B.pharm students
How to Setup Warehouse & Location in Odoo 17 Inventory
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
How to Make a Field Mandatory in Odoo 17
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
Leveraging Generative AI to Drive Nonprofit Innovation
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
Recently uploaded (20)
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
Gender and Mental Health - Counselling and Family Therapy Applications and In...
Gender and Mental Health - Counselling and Family Therapy Applications and In...
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
Lifelines of National Economy chapter for Class 10 STUDY MATERIAL PDF
Lifelines of National Economy chapter for Class 10 STUDY MATERIAL PDF
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
SWOT analysis in the project Keeping the Memory @live.pptx
SWOT analysis in the project Keeping the Memory @live.pptx
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
REASIGNACION 2024 UGEL CHUPACA 2024 UGEL CHUPACA.pdf
REASIGNACION 2024 UGEL CHUPACA 2024 UGEL CHUPACA.pdf
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
Cloud computing and security 02
- 1. Cloud Computing and Security Issues with Cloud and security
- 2. Principles of security Confidentiality – only sender and receiver have access to data Authentication – who is who? Integrity – data/msg travels without alteration(Modification) Non-repudation – do not allow sender/r to deny the claim of not sending/r the msg Availability – resource/service must be available to authentic users(DOS) Access Control – Role & Rule mgmt.
- 3. Types of attacks Passive – doesn’t involve modification(traffic analysis) Active - modification happens in some way(Modification,DOS) Packet sniffing Packet spoofing Phishing – fraudal attempt to steal info. Socially engineered
- 4. Cryptography Plain text – message – language easily understood Cipher text – encrypted message – language cannot be understood Cryptography – Art of hiding messages Cryptos=hidden/secret Graphein=to write
- 5. Cryptography techniques Substitution cipher – subs one alphabet with another (Caesar) Transposition cipher – changing the position/arrangement of alphabets (Rail Fence)
- 6. Basic terms Encryption – plain -> cipher Decryption – cipher -> plain Algorithm + key (algo=technique) Key size determines time to crack
- 7. Types of cryptography Symmetric key Same key for enc. dec. very fast Key distribution prob Asymmetric key Key pair Slow Exponentiation & Modulus RSA-(Rivest-Shamir-Adleman)
- 8. Hashing and Digital Sign. Hash – unique representation of a message similar to human fingerprint Digital signature – Hashing algos – MD5(128),SHA-1(160),SHA-2
- 9. Data level security SaaS App Middleware Guest OS Hypervisor Storage H/W N/W PaaS App Middleware Guest OS Hypervisor Storage H/W N/W IaaS App Middleware Guest OS Hypervisor Storage H/W N/W
- 10. Data Security Create Store Use Share Archive Destroy Fig.- Life cycle of data
- 11. Issues with Service Providers Creation – What is confidential/can be shared? Rights & permissions while creation Storage – Where is my data? How its separated from other users’ data? Which data will be encrypted & how? Key types and permissions? Is govt. Able to seize it? Backup & recovery
- 12. Issues with Service Providers Usage and Sharing - Is the data intact? (auditing and accounting) Logs? Is it encrypted while in transit? Achieving – Type of media used? Destruction(Data Remanence) – Are all the redundant copies deleted? How to ensure that?
- 13. Fin. Thank you!