Secret sharing schemes allow for distributing a secret amongst a group of participants such that the secret can only be reconstructed when shares are combined, but individual shares provide no information. A (t,n)-threshold scheme distributes shares such that any t or more shares can reconstruct the secret, but fewer than t shares provide no information. Secret sharing has applications in secure communications networks where secrets need protection by multiple keys.
We rely on secrets such as safe combinations, PIN codes, computer passwords, etc. But so many things happen to lose secretes.
1. Secrets can be lost.
2. Documents get destroyed.
3. Hard disks fail
4. People forget
5. People leave companies,
6. people die...
One way to avoid such problems :-
Divide secret data (D) in to pieces (n)
* Knowledge of some pieces (k) enables to derive secret data (D)
* Knowledge of any pieces (k-1) makes secret data (D) completely undetermined.
Such a scheme is called a (k, n) threshold scheme.
This presentation provides a in depth view of Shamir's Secret Sharing Scheme.
Pgp-Pretty Good Privacy is the open source freely available tool to encrypt your emails then you can very securely send mails to others over internet without fear of eavesdropping by cryptanalyst.
E-Mail Security: Pretty Good Privacy, S/MIME IP Security: IP Security overview, IP Security architecture, Authentication Header, Encapsulating security payload, Combining security associations, Internet Key Exchange Case Studies on Cryptography and security: Secure Multiparty Calculation, Virtual Elections, Single sign On, Secure Inter-branch Payment Transactions, Cross site Scripting Vulnerability.
The presentation describes basics of cryptography and information security. It covers goals of cryptography, history of cipher symmetric and public key cryptography
We rely on secrets such as safe combinations, PIN codes, computer passwords, etc. But so many things happen to lose secretes.
1. Secrets can be lost.
2. Documents get destroyed.
3. Hard disks fail
4. People forget
5. People leave companies,
6. people die...
One way to avoid such problems :-
Divide secret data (D) in to pieces (n)
* Knowledge of some pieces (k) enables to derive secret data (D)
* Knowledge of any pieces (k-1) makes secret data (D) completely undetermined.
Such a scheme is called a (k, n) threshold scheme.
This presentation provides a in depth view of Shamir's Secret Sharing Scheme.
Pgp-Pretty Good Privacy is the open source freely available tool to encrypt your emails then you can very securely send mails to others over internet without fear of eavesdropping by cryptanalyst.
E-Mail Security: Pretty Good Privacy, S/MIME IP Security: IP Security overview, IP Security architecture, Authentication Header, Encapsulating security payload, Combining security associations, Internet Key Exchange Case Studies on Cryptography and security: Secure Multiparty Calculation, Virtual Elections, Single sign On, Secure Inter-branch Payment Transactions, Cross site Scripting Vulnerability.
The presentation describes basics of cryptography and information security. It covers goals of cryptography, history of cipher symmetric and public key cryptography
The Internet Key Exchange (IKE) protocol, described in RFC 2409, is a key management protocol standard which is used in conjunction with the IPsec standard. IPsec can be configured without IKE, but IKE enhances IPsec by providing additional features, flexibility, and ease of configuration for the IPsec standard.
Pretty Good Privacy (PGP) is strong encryption software that enables you to protect your email and files by scrambling them so others cannot read them. It also allows you to digitally "sign" your messages in a way that allows others to verify that a message was actually sent by you. PGP is available in freeware and commercial versions all over the world.
PGP was first released in 1991 as a DOS program that earned a reputation for being difficult. In June 1997, PGP Inc. released PGP 5.x for Win95/NT. PGP 5.x included plugins for several popular email programs.
Key management: Introduction, How public key distribution done, Diffie Hellman Key Exchage Algorithm,Digital Certificate. Key Management using Digital certificate is done etc. wireshark screenshot showing digital cetificate.
Today in modern era of internet we share some sensitive data to information transmission. but need to ensure security. So we focus on Cryptography modern technique for secure transmission of information over network.
A detailed description about Cryptography explaining the topic from the very basics. Explaining how it all started, and how is it currently being applied in the real world. Mostly useful for students in engineering and mathematics.
The Internet Key Exchange (IKE) protocol, described in RFC 2409, is a key management protocol standard which is used in conjunction with the IPsec standard. IPsec can be configured without IKE, but IKE enhances IPsec by providing additional features, flexibility, and ease of configuration for the IPsec standard.
Pretty Good Privacy (PGP) is strong encryption software that enables you to protect your email and files by scrambling them so others cannot read them. It also allows you to digitally "sign" your messages in a way that allows others to verify that a message was actually sent by you. PGP is available in freeware and commercial versions all over the world.
PGP was first released in 1991 as a DOS program that earned a reputation for being difficult. In June 1997, PGP Inc. released PGP 5.x for Win95/NT. PGP 5.x included plugins for several popular email programs.
Key management: Introduction, How public key distribution done, Diffie Hellman Key Exchage Algorithm,Digital Certificate. Key Management using Digital certificate is done etc. wireshark screenshot showing digital cetificate.
Today in modern era of internet we share some sensitive data to information transmission. but need to ensure security. So we focus on Cryptography modern technique for secure transmission of information over network.
A detailed description about Cryptography explaining the topic from the very basics. Explaining how it all started, and how is it currently being applied in the real world. Mostly useful for students in engineering and mathematics.
Project consists of individual modules of encryption and decryption units. Standard T-DES algorithm is implemented. Presently working on to integrate DES with AES to develop stronger crypto algorithm and test the same against Side Channel Attacks and compare different algorithms.
This presentation introduces the Basics of Cryptography and Network Security concepts. Heavily derived from content from William Stalling's book with the same title.
A Review Paper on Secure authentication and data sharing in cloud storage usi...ijsrd.com
Cryptography is the study of mathematical techniques related to aspects of information security such as confidentiality, data integrity, entity authentication and data again authentication. We describe new public-key cryptosystems that produce constant-size cipher texts such that efficient delegation of decryption rights for any set of cipher texts is possible. Cryptosystem or cryptographic system is any sort of methodology for encoding and accessing that information. In this technique the master key holder can release a constant-size aggregate key for flexible choices of cipher text set in cloud storage, but the other encrypted files outside the set remain confidential. This compact aggregate key can be conveniently sent to others or be stored in a smart card with very limited secure storage. We provide formal security analysis of our schemes in the standard model. We also describe other application of our schemes. In particular, one can aggregate any set of secret keys and make them compact as a single key but encompassing the power of all the keys being aggregated.
This presentation consists of the Seminar, provided by me in the partial fulfillment of my Bachelors Degree in G B Pant Engineering College. Seminar included information about Encryption, Decryption, Cryptosystems and Authenticity in crytosystem.
BREAKING MIGNOTTE’S SEQUENCE BASED SECRET SHARING SCHEME USING SMT SOLVERijcsit
The secret sharing schemes are the important tools in cryptography that are used as building blocks in
many secured protocols. It is a method used for distributing a secret among the participants in a manner
that only the threshold number of participants together can recover the secret and the remaining set of
participants cannot get any information about the secret. Secret sharing schemes are absolute for storing
highly sensitive and important information. In a secret sharing scheme, a secret is divided into several
shares. These shares are then distributed to the participants’ one each and thus only the threshold (t)
number of participants can recover the secret. In this paper we have used Mignotte’s Sequence based
Secret Sharing for distribution of shares to the participants. A (k, m) Mignotte's sequence is a sequence of
pair wise co-prime positive integers. We have proposed a new method for reconstruction of secret even
with t-1 shares using the SMT solver.
The secret sharing schemes are the important tools in cryptography that are used as building blocks in many secured protocols. It is a method used for distributing a secret among the participants in a manner that only the threshold number of participants together can recover the secret and the remaining set of participants cannot get any information about the secret. Secret sharing schemes are absolute for storing highly sensitive and important information. In a secret sharing scheme, a secret is divided into several shares. These shares are then distributed to the participants’ one each and thus only the threshold (t) number of participants can recover the secret. In this paper we have used Mignotte’s Sequence based Secret Sharing for distribution of shares to the participants. A (k, m) Mignotte's sequence is a sequence of pair wise co-prime positive integers. We have proposed a new method for reconstruction of secret even with t-1 shares using the SMT solver.
The secret sharing schemes are the important tools in cryptography that are used as building blocks in many secured protocols. It is a method used for distributing a secret among the participants in a manner that only the threshold number of participants together can recover the secret and the remaining set of participants cannot get any information about the secret. Secret sharing schemes are absolute for storing highly sensitive and important information. In a secret sharing scheme, a secret is divided into several shares. These shares are then distributed to the participants’ one each and thus only the threshold (t) number of participants can recover the secret. In this paper we have used Mignotte’s Sequence based Secret Sharing for distribution of shares to the participants. A (k, m) Mignotte's sequence is a sequence of pair wise co-prime positive integers. We have proposed a new method for reconstruction of secret even with t-1 shares using the SMT solver.
Security+ Guide to Network Security Fundamentals, 3rd Edition, by Mark Ciampa
Knowledge and skills required for Network Administrators and Information Technology professionals to be aware of security vulnerabilities, to implement security measures, to analyze an existing network environment in consideration of known security threats or risks, to defend against attacks or viruses, and to ensure data privacy and integrity. Terminology and procedures for implementation and configuration of security, including access control, authorization, encryption, packet filters, firewalls, and Virtual Private Networks (VPNs).
CNIT 120: Network Security
http://samsclass.info/120/120_S09.shtml#lecture
Policy: http://samsclass.info/policy_use.htm
Many thanks to Sam Bowne for allowing to publish these presentations.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
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