fixed API reference
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README.md
170
README.md
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@ -18,7 +18,7 @@ npm install bigint-crypto-utils
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NPM installation defaults to the ES6 module for browsers and the CJS one for Node.js.
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For web browsers, you can also directly download the [IIFE bundle](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.js) or the [ES6 bundle module](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.mod.js) from GitHub.
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For web browsers, you can also directly download the [IIFE bundle](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.js) or the [ES6 bundle module](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.min.mod.js) from GitHub.
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## Usage examples
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@ -96,6 +96,77 @@ primeTesting()
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## API reference documentation
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### Functions
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<dl>
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<dt><a href="#abs">abs(a)</a> ⇒ <code>bigint</code></dt>
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<dd><p>Absolute value. abs(a)==a if a>=0. abs(a)==-a if a<0</p>
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</dd>
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<dt><a href="#bitLength">bitLength(a)</a> ⇒ <code>number</code></dt>
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<dd><p>Returns the bitlength of a number</p>
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</dd>
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<dt><a href="#eGcd">eGcd(a, b)</a> ⇒ <code><a href="#egcdReturn">egcdReturn</a></code></dt>
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<dd><p>An iterative implementation of the extended euclidean algorithm or extended greatest common divisor algorithm.
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Take positive integers a, b as input, and return a triple (g, x, y), such that ax + by = g = gcd(a, b).</p>
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</dd>
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<dt><a href="#gcd">gcd(a, b)</a> ⇒ <code>bigint</code></dt>
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<dd><p>Greatest-common divisor of two integers based on the iterative binary algorithm.</p>
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</dd>
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<dt><a href="#lcm">lcm(a, b)</a> ⇒ <code>bigint</code></dt>
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<dd><p>The least common multiple computed as abs(a*b)/gcd(a,b)</p>
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</dd>
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<dt><a href="#max">max(a, b)</a> ⇒ <code>bigint</code></dt>
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<dd><p>Maximum. max(a,b)==a if a>=b. max(a,b)==b if a<=b</p>
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</dd>
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<dt><a href="#min">min(a, b)</a> ⇒ <code>bigint</code></dt>
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<dd><p>Minimum. min(a,b)==b if a>=b. min(a,b)==a if a<=b</p>
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</dd>
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<dt><a href="#modInv">modInv(a, n)</a> ⇒ <code>bigint</code></dt>
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<dd><p>Modular inverse.</p>
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</dd>
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<dt><a href="#modPow">modPow(b, e, n)</a> ⇒ <code>bigint</code></dt>
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<dd><p>Modular exponentiation b**e mod n. Currently using the right-to-left binary method</p>
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</dd>
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<dt><a href="#toZn">toZn(a, n)</a> ⇒ <code>bigint</code></dt>
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<dd><p>Finds the smallest positive element that is congruent to a in modulo n</p>
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</dd>
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<dt><a href="#isProbablyPrime">isProbablyPrime(w, [iterations])</a> ⇒ <code>Promise.<boolean></code></dt>
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<dd><p>The test first tries if any of the first 250 small primes are a factor of the input number and then passes several
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iterations of Miller-Rabin Probabilistic Primality Test (FIPS 186-4 C.3.1)</p>
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</dd>
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<dt><a href="#prime">prime(bitLength, [iterations])</a> ⇒ <code>Promise.<bigint></code></dt>
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<dd><p>A probably-prime (Miller-Rabin), cryptographically-secure, random-number generator.
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The browser version uses web workers to parallelise prime look up. Therefore, it does not lock the UI
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main process, and it can be much faster (if several cores or cpu are available).
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The node version can also use worker_threads if they are available (enabled by default with Node 11 and
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and can be enabled at runtime executing node --experimental-worker with node >=10.5.0).</p>
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</dd>
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<dt><a href="#primeSync">primeSync(bitLength, [iterations])</a> ⇒ <code>bigint</code></dt>
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<dd><p>A probably-prime (Miller-Rabin), cryptographically-secure, random-number generator.
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The sync version is NOT RECOMMENDED since it won't use workers and thus it'll be slower and may freeze thw window in browser's javascript. Please consider using prime() instead.</p>
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</dd>
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<dt><a href="#randBetween">randBetween(max, [min])</a> ⇒ <code>bigint</code></dt>
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<dd><p>Returns a cryptographically secure random integer between [min,max]</p>
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</dd>
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<dt><a href="#randBits">randBits(bitLength, [forceLength])</a> ⇒ <code>Buffer</code> | <code>Uint8Array</code></dt>
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<dd><p>Secure random bits for both node and browsers. Node version uses crypto.randomFill() and browser one self.crypto.getRandomValues()</p>
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</dd>
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<dt><a href="#randBytes">randBytes(byteLength, [forceLength])</a> ⇒ <code>Promise.<(Buffer|Uint8Array)></code></dt>
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<dd><p>Secure random bytes for both node and browsers. Node version uses crypto.randomFill() and browser one self.crypto.getRandomValues()</p>
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</dd>
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<dt><a href="#randBytesSync">randBytesSync(byteLength, [forceLength])</a> ⇒ <code>Buffer</code> | <code>Uint8Array</code></dt>
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<dd><p>Secure random bytes for both node and browsers. Node version uses crypto.randomFill() and browser one self.crypto.getRandomValues()</p>
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</dd>
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</dl>
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### Typedefs
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<dl>
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<dt><a href="#egcdReturn">egcdReturn</a> : <code>Object</code></dt>
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<dd><p>A triple (g, x, y), such that ax + by = g = gcd(a, b).</p>
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</dd>
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</dl>
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<a name="abs"></a>
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### abs(a) ⇒ <code>bigint</code>
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@ -226,6 +297,103 @@ Finds the smallest positive element that is congruent to a in modulo n
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| a | <code>number</code> \| <code>bigint</code> | An integer |
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| n | <code>number</code> \| <code>bigint</code> | The modulo |
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<a name="isProbablyPrime"></a>
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### isProbablyPrime(w, [iterations]) ⇒ <code>Promise.<boolean></code>
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The test first tries if any of the first 250 small primes are a factor of the input number and then passes several
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iterations of Miller-Rabin Probabilistic Primality Test (FIPS 186-4 C.3.1)
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**Kind**: global function
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**Returns**: <code>Promise.<boolean></code> - A promise that resolves to a boolean that is either true (a probably prime number) or false (definitely composite)
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| Param | Type | Default | Description |
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| --- | --- | --- | --- |
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| w | <code>number</code> \| <code>bigint</code> | | An integer to be tested for primality |
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| [iterations] | <code>number</code> | <code>16</code> | The number of iterations for the primality test. The value shall be consistent with Table C.1, C.2 or C.3 |
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<a name="prime"></a>
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### prime(bitLength, [iterations]) ⇒ <code>Promise.<bigint></code>
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A probably-prime (Miller-Rabin), cryptographically-secure, random-number generator.
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The browser version uses web workers to parallelise prime look up. Therefore, it does not lock the UI
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main process, and it can be much faster (if several cores or cpu are available).
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The node version can also use worker_threads if they are available (enabled by default with Node 11 and
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and can be enabled at runtime executing node --experimental-worker with node >=10.5.0).
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**Kind**: global function
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**Returns**: <code>Promise.<bigint></code> - A promise that resolves to a bigint probable prime of bitLength bits.
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| Param | Type | Default | Description |
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| --- | --- | --- | --- |
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| bitLength | <code>number</code> | | The required bit length for the generated prime |
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| [iterations] | <code>number</code> | <code>16</code> | The number of iterations for the Miller-Rabin Probabilistic Primality Test |
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<a name="primeSync"></a>
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### primeSync(bitLength, [iterations]) ⇒ <code>bigint</code>
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A probably-prime (Miller-Rabin), cryptographically-secure, random-number generator.
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The sync version is NOT RECOMMENDED since it won't use workers and thus it'll be slower and may freeze thw window in browser's javascript. Please consider using prime() instead.
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**Kind**: global function
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**Returns**: <code>bigint</code> - A bigint probable prime of bitLength bits.
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| Param | Type | Default | Description |
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| --- | --- | --- | --- |
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| bitLength | <code>number</code> | | The required bit length for the generated prime |
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| [iterations] | <code>number</code> | <code>16</code> | The number of iterations for the Miller-Rabin Probabilistic Primality Test |
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<a name="randBetween"></a>
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### randBetween(max, [min]) ⇒ <code>bigint</code>
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Returns a cryptographically secure random integer between [min,max]
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**Kind**: global function
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**Returns**: <code>bigint</code> - A cryptographically secure random bigint between [min,max]
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| Param | Type | Default | Description |
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| --- | --- | --- | --- |
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| max | <code>bigint</code> | | Returned value will be <= max |
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| [min] | <code>bigint</code> | <code>BigInt(1)</code> | Returned value will be >= min |
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<a name="randBits"></a>
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### randBits(bitLength, [forceLength]) ⇒ <code>Buffer</code> \| <code>Uint8Array</code>
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Secure random bits for both node and browsers. Node version uses crypto.randomFill() and browser one self.crypto.getRandomValues()
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**Kind**: global function
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**Returns**: <code>Buffer</code> \| <code>Uint8Array</code> - A Buffer/UInt8Array (Node.js/Browser) filled with cryptographically secure random bits
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| Param | Type | Default | Description |
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| --- | --- | --- | --- |
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| bitLength | <code>number</code> | | The desired number of random bits |
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| [forceLength] | <code>boolean</code> | <code>false</code> | If we want to force the output to have a specific bit length. It basically forces the msb to be 1 |
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<a name="randBytes"></a>
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### randBytes(byteLength, [forceLength]) ⇒ <code>Promise.<(Buffer\|Uint8Array)></code>
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Secure random bytes for both node and browsers. Node version uses crypto.randomFill() and browser one self.crypto.getRandomValues()
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**Kind**: global function
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**Returns**: <code>Promise.<(Buffer\|Uint8Array)></code> - A promise that resolves to a Buffer/UInt8Array (Node.js/Browser) filled with cryptographically secure random bytes
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| Param | Type | Default | Description |
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| --- | --- | --- | --- |
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| byteLength | <code>number</code> | | The desired number of random bytes |
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| [forceLength] | <code>boolean</code> | <code>false</code> | If we want to force the output to have a bit length of 8*byteLength. It basically forces the msb to be 1 |
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<a name="randBytesSync"></a>
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### randBytesSync(byteLength, [forceLength]) ⇒ <code>Buffer</code> \| <code>Uint8Array</code>
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Secure random bytes for both node and browsers. Node version uses crypto.randomFill() and browser one self.crypto.getRandomValues()
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**Kind**: global function
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**Returns**: <code>Buffer</code> \| <code>Uint8Array</code> - A Buffer/UInt8Array (Node.js/Browser) filled with cryptographically secure random bytes
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| Param | Type | Default | Description |
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| --- | --- | --- | --- |
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| byteLength | <code>number</code> | | The desired number of random bytes |
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| [forceLength] | <code>boolean</code> | <code>false</code> | If we want to force the output to have a bit length of 8*byteLength. It basically forces the msb to be 1 |
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<a name="egcdReturn"></a>
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### egcdReturn : <code>Object</code>
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@ -8,17 +8,19 @@ const pkgJson = require('../package.json')
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const rootDir = path.join(__dirname, '..')
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const template = path.join(rootDir, pkgJson.directories.src, 'doc', 'readme-template.md')
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const input = path.join(rootDir, pkgJson.directories.lib, 'index.node.js')
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const input = path.join(rootDir, pkgJson.directories.lib, 'index.browser.bundle.mod.js')
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const source = fs.readFileSync(input, { encoding: 'UTF-8' }).replace(/([0-9]+)n([,\s\n)])/g, '$1$2')
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const options = {
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source: fs.readFileSync(input, { encoding: 'UTF-8' }), // we need to use this instead of files in order to avoid issues with esnext features
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source, // we need to use this instead of files in order to avoid issues with esnext features
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template: fs.readFileSync(template, { encoding: 'UTF-8' }),
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'heading-depth': 3, // The initial heading depth. For example, with a value of 2 the top-level markdown headings look like "## The heading"
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'global-index-format': 'none' // none, grouped, table, dl.
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'heading-depth': 3 // The initial heading depth. For example, with a value of 2 the top-level markdown headings look like "## The heading"
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// 'global-index-format': 'none' // none, grouped, table, dl.
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}
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const readmeContents = jsdoc2md.renderSync(options)
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jsdoc2md.clear().then(() => {
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const readmeContents = jsdoc2md.renderSync(options)
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const readmeFile = path.join(rootDir, 'README.md')
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fs.writeFileSync(readmeFile, readmeContents)
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const readmeFile = path.join(rootDir, 'README.md')
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fs.writeFileSync(readmeFile, readmeContents)
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})
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@ -29,7 +29,7 @@ module.exports = [
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input: input,
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output: [
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{
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file: path.join(dstDir, 'index.browser.mod.js'),
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file: path.join(rootDir, pkgJson.browser),
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format: 'esm'
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}
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],
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@ -46,7 +46,17 @@ module.exports = [
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{
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file: path.join(dstDir, 'index.browser.bundle.js'),
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format: 'iife',
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name: pkgCamelisedName
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name: pkgCamelisedName,
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plugins: [
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terser()
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]
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},
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{
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file: path.join(dstDir, 'index.browser.bundle.min.mod.js'),
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format: 'es',
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plugins: [
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terser()
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]
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},
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{
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file: path.join(dstDir, 'index.browser.bundle.mod.js'),
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@ -59,10 +69,6 @@ module.exports = [
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}),
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resolve({
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browser: true
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}),
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terser({
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// mangle: false,
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// compress: false
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})
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]
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},
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@ -21,7 +21,7 @@ const dstDir = path.join(rootDir, pkgJson.directories.test, 'browser')
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const dstFileName = path.join(dstDir, 'index.html')
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const template = fs.readFileSync(templatePath, 'utf-8')
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const bundleFile = path.join(rootDir, pkgJson.directories.lib, 'index.browser.bundle.mod.js')
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const bundleFile = path.join(rootDir, pkgJson.directories.lib, 'index.browser.bundle.min.mod.js')
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const testsJs = `
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<script type="module">
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import * as _pkg from '${path.relative(templatePath, bundleFile)}'
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File diff suppressed because one or more lines are too long
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@ -53,7 +53,7 @@
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"ignore": [
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"/test/browser/",
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"/lib/index.browser.bundle.js",
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"/lib/index.browser.bundle.mod.js"
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"/lib/index.browser.bundle.min.mod.js"
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]
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},
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"devDependencies": {
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@ -18,7 +18,7 @@ npm install bigint-crypto-utils
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NPM installation defaults to the ES6 module for browsers and the CJS one for Node.js.
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For web browsers, you can also directly download the [IIFE bundle](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.js) or the [ES6 bundle module](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.mod.js) from GitHub.
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For web browsers, you can also directly download the [IIFE bundle](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.js) or the [ES6 bundle module](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/lib/index.browser.bundle.min.mod.js) from GitHub.
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## Usage examples
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@ -13,7 +13,7 @@
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<script>mocha.setup('bdd'); mocha.setup({ timeout: 90000 });</script>
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<script type="module">
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import * as _pkg from '../../../lib/index.browser.bundle.mod.js'
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import * as _pkg from '../../../lib/index.browser.bundle.min.mod.js'
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window._pkg = _pkg;
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import './tests.js';
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mocha.run();
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