How deeply does Spring Security in Action, Second Edition cover hash function?

Explains the security role and configuration boundary but stops short of comparing individual hashing algorithms or implementation internals.

Hash function

As explained in Spring Security in Action, Second Edition

A hashing algorithm deterministically transforms input data into an output from which the original input is intended to be impractical to recover.

A hash function deterministically transforms input data into an output designed to make recovering the original input impractical. In Spring Security, hashing is applied where protected data is stored, especially passwords. section 4.3 section 1.1

Use hashing as part of an explicitly configured security design:

Select a suitable hashing implementation through PasswordEncoder when implementing authentication logic. section 4.3
Add and configure the required component wherever stored data needs hashing; Spring Security supplies the contract, not the application-specific design. section 1.1
Keep hashing distinct from encryption: encryptors support encryption and decryption, while hashing is listed among the data-protection choices. section 4.3 section 1.1

How Spring Security in Action, Second Edition covers it

Cover of Spring Security in Action, Second Edition

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Also explained in

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Real-World CryptographyA hash function maps input data to a fixed-size output and may provide cryptographic properties such as one-wayness and collision resistance.
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Hacking CryptographyA function that maps input data to a fixed-size digest, typically designed so that recovering or finding inputs with specified relationships is computationally infeasible.
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Grokking Algorithms, Second EditionA hash function is a deterministic function that maps a key to a value used to determine its storage location in a hash table.
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Grokking Data StructuresA hash function is a function that maps input data to a bounded hash value used to compute or organize lookup keys.
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Troubleshooting Java, Second EditionHashing is the transformation of data into a fixed-size digest that can be compared to detect content differences without transmitting the original data.
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Grokking Relational Database DesignA hash function is a function that maps variable-length input data to a fixed-length output value.
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The Joy of JavaScriptThe process of computing a fixed-size digest or hash value from input data using a hash function.
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First-Party Data ActivationThe transformation of input data into a fixed-length value designed for integrity checking, lookup, or comparison without retaining the original representation.
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Effective Data AnalysisA hash algorithm is a computational procedure that deterministically maps data to a fixed-size hash code.
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Grokking Web Application SecurityA hashing algorithm deterministically maps input data to a fixed-size hash value while being designed to make different inputs produce different values with high probability.
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Python How-ToHashing is the computation of a compact hash value from input data using a hash function.
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ASP.NET Core in Action, 3eA hash is a deterministic compact value computed from data such that modifying the data normally changes the resulting value.
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Akka in Action, Second EditionA hashing algorithm is an algorithm that deterministically maps input data to hash values.
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Acing the CCNA Exam: Volume 2 Advanced Networking and SecurityA hashing algorithm transforms input data into a fixed-size digest that can support password protection and integrity verification.
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Python Workout, Second EditionA hash function is a function that maps a hashable Python object to an integer hash value used by hash-based data structures.

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Related concepts

hash valueproduces · A hash value is a deterministic, typically fixed-size value produced by applying a hash function to input data, often for lookup, comparison, identification, or integrity checking.
SHA-256includes · SHA-256 is a standardized cryptographic hash function in the SHA-2 family that maps arbitrary input data to a fixed-length 256-bit digest.
cryptographic hashproduces · A cryptographic hash is a fixed-length digest computed from input data by a deterministic function designed to resist preimage, second-preimage, and collision attacks.
bloom filterused by · A Bloom filter is a space-efficient probabilistic data structure for testing set membership that permits false positives but not false negatives.
SHA-2includes · SHA-2 is a standardized family of cryptographic hash algorithms that produces fixed-length digests, including SHA-224, SHA-256, SHA-384, and SHA-512.
HMACused by · HMAC is a keyed message authentication code constructed from a cryptographic hash function and a secret key to authenticate data and verify its integrity.

This explainer was generated by Manning's knowledge graph from the text of Spring Security in Action, Second Edition. The section links point to the parts of the book it draws on.