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@stablelib/constant-time
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@stablelib/constant-time is a JavaScript library that provides functions for performing constant-time operations. These operations are designed to take the same amount of time regardless of the input values, which is crucial for cryptographic applications to prevent timing attacks.
Constant-time string comparison
This feature allows you to compare two strings in constant time, which is useful for preventing timing attacks that could exploit the time it takes to compare different strings.
const { equal } = require('@stablelib/constant-time');
const a = 'hello';
const b = 'hello';
const c = 'world';
console.log(equal(a, b)); // true
console.log(equal(a, c)); // false
Constant-time byte array comparison
This feature allows you to compare two byte arrays in constant time, which is useful for cryptographic operations where you need to ensure that the comparison does not leak information through timing.
const { equal } = require('@stablelib/constant-time');
const a = new Uint8Array([1, 2, 3]);
const b = new Uint8Array([1, 2, 3]);
const c = new Uint8Array([4, 5, 6]);
console.log(equal(a, b)); // true
console.log(equal(a, c)); // false
tsscmp is a library for performing timing-safe string comparisons. It is similar to @stablelib/constant-time in that it aims to prevent timing attacks by ensuring that string comparisons take the same amount of time regardless of the input values.
secure-compare is another library that provides constant-time comparison functions for strings and buffers. It is designed to be simple and lightweight, making it a good alternative to @stablelib/constant-time for basic constant-time comparison needs.
FAQs
Algorithmically constant-time utility functions
The npm package @stablelib/constant-time receives a total of 319,754 weekly downloads. As such, @stablelib/constant-time popularity was classified as popular.
We found that @stablelib/constant-time demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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