In cryptography, a salt is random data that is used as an additional input to a one-way function that hashes data, a password or passphrase. Salts are used to safeguard passwords in storage. Historically, only the output from an invocation of a cryptographic hash function on the password was stored on a system, but, over time, additional safeguards were developed to protect against duplicate or common passwords being identifiable (as their hashes are identical). Salting is one such protection. A new salt is randomly generated for each password. Typically, the salt and the password (or its version after key stretching) are concatenated and fed to a cryptographic hash function, and the output hash value (but not the original password) is stored with the salt in a database. Hashing allows later authentication without keeping and therefore risking exposure of the plaintext password if the authentication data store is compromised. Salts don't need to be encrypted or stored separately from the hashed password itself, because even if an attacker has access to the database with the hash values and the salts, the correct use of said salts will hinder common attacks. Salts defend against attacks that use precomputed tables (e.g. rainbow tables), as they can make the size of table needed for a successful attack prohibitively large without burdening users. Since salts differ from one another, they also protect weak (e.g. commonly used, re-used) passwords, as different salted hashes are created for different instances of the same password. Cryptographic salts are broadly used in many modern computer systems, from Unix system credentials to Internet security. Salts are closely related to the concept of a cryptographic nonce. (Wikipedia).
Salted Password Scheme Solution - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
Salted Password Scheme - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
From playlist CS50 Walkthroughs
Thwarting Dictionary Attacks Solution - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
Thwarting Dictionary Attacks - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
Primality (1 of 2: Fermat's Test)
From playlist Cryptography
Cryptanalysis of Classical Ciphers
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist Computer - Cryptography and Network Security
Cryptography is a complex and confusing subject. In this talk you will learn about the core components of cryptography used in software development: securing data with encryption, ensuring data integrity with hashes and digital signatures, and protecting passwords with key derivation funct
From playlist Blockchain
Steganography Tutorial - Hide Messages In Images
Steganography is the hiding of a secret message within an ordinary message and the extraction of it at its destination. Steganography takes cryptography a step further by hiding an encrypted message so that no one suspects it exists. Ideally, anyone scanning your data will fail to know it
From playlist Ethical Hacking & Penetration Testing - Complete Course
OWASP AppSecUSA 2011:How NOT to Implement Cryptography for the OWASP Top 10 (Reloaded)
Speaker: Anthony J. Stieber This talk is an update of a talk in 2008 at the OWASP Minneapolis-St.Paul Chapter which was about encryption as it applies to parts of the OWASP Top Ten. The new talk uses fresh examples of application cryptography successes and failures, and also incorporates
From playlist OWASP AppSecUSA 2011
Cryptography is a complex and confusing subject. In this talk you will learn about the core components of cryptography used in software development: securing data with encryption, ensuring data integrity with hashes and digital signatures, and protecting passwords with key derivation funct
From playlist Blockchain
Top Hashing Algorithms In Cryptography | MD5 and SHA 256 Algorithms Explained | Simplilearn
In this video on Top Hashing Algorithms In Cryptography, we will cover the technical aspects of hashing while going through some well-known hash functions and algorithms at the end. We cover the basics of cryptography and its applications. We also have detailed MD5 and SHA265 Explained sec
From playlist Cyber Security Playlist [2023 Updated]🔥
Tim Taubert: Keeping secrets with JavaScript | JSConf EU 2014
With the web slowly maturing as a platform the demand for cryptography in the browser has risen, especially in a post-Snowden era. Many of us have heard about the upcoming Web Cryptography API but at the time of writing there seem to be no good introductions available. We will take a look
From playlist JSConf EU 2014
GoRuCo 2013 - Krypt. Semper Pi. by Martin Bosslet
Many people don't like Cryptography. Whenever he falls out of a bar, he carries this strong odor of ivory-towering, bikeshedding and plain, outright arrogance. He seems to be a loner and a smartass, rude, and it's hard to follow his boring, lengthy explanations. But once you get to know hi
From playlist GoRuCo 2013
OWASP AppSecUSA 2012: Web App Crypto - A Study in Failure
Speaker: Travis H. Seldom in cryptography do we have any unconditional proofs of the difficulty of defeating our cryptosystems. Furthermore, we are often defeated not by the attacks we anticipated, but the vectors we did not know about. Like fire and safety engineers, we learn from the mi
From playlist OWASP AppSecUSA 2012
Cyber Security Week Day - 1 |Cryptography Full Course | Cryptography & Network Security| Simplilearn
🔥Advanced Executive Program In Cybersecurity: https://www.simplilearn.com/pgp-advanced-executive-program-in-cyber-security 🔥Caltech Cybersecurity Bootcamp(US Only): https://www.simplilearn.com/cybersecurity-bootcamp This video on Cryptography full course will acquaint you with cryptograph
From playlist Simplilearn Live
Few other Cryptanalytic Techniques
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist Computer - Cryptography and Network Security