A pure Swift implementation of the SipHash-2-4 cryptographic hashing algorithm for secure hashing in Swift.
SipHash is a pure Swift implementation of the SipHash-2-4 cryptographic hashing algorithm, designed for secure and efficient hashing of short messages. It provides a `SipHashable` protocol and direct hasher usage to simplify hash implementation in Swift, though it is now obsoleted by Swift 4.2's standard `Hasher`.
Swift developers targeting versions before Swift 4.2 who need a secure, standardized hashing algorithm for data structures like sets and dictionary keys, or for network traffic authentication.
Developers choose SipHash for its implementation of a well-regarded cryptographic hash algorithm in pure Swift, offering security against collision attacks and a simpler API than custom hash functions, though it is no longer recommended for modern Swift code.
Simple and secure hashing in Swift with the SipHash algorithm
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Implements SipHash-2-4, a keyed hash function designed to defend against hash-flooding DoS attacks, providing secure hashing for short messages as per the algorithm's design.
Offers the SipHashable protocol as an alternative to the deprecated hashValue, making hash composition easier without custom blending logic, as shown in the Book struct sample.
Supports macOS, iOS, watchOS, tvOS, and Linux, ensuring it works across various Swift environments without platform-specific issues.
No external dependencies, implemented entirely in Swift, which simplifies integration and avoids C interop complexities.
Made obsolete by Swift 4.2's Hasher type and hash(into:) requirement, rendering it unnecessary and deprecated for modern Swift development.
Only applicable to Swift versions before 4.2, which are now outdated, limiting its usefulness to legacy codebases with no forward compatibility.
The author acknowledges potential bugs and relies on test vectors rather than extensive validation, though unit test coverage is high, as stated in the README.