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@@ -0,0 +1,48 @@
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+/**
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+ * @author h [h]
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+ * @copyright Crown Copyright 2019
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+ * @license Apache-2.0
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+ */
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+
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+import Operation from "../Operation";
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+import blakejs from "blakejs";
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+
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+/**
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+ * BLAKE2b operation
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+ */
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+class BLAKE2b extends Operation {
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+
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+ /**
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+ * BLAKE2b constructor
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+ */
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+ constructor() {
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+ super();
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+
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+ this.name = "BLAKE2b";
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+ this.module = "Hashing";
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+ this.description = "Performs BLAKE2b hashing on the input. Returns the output HEX encoded.";
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+ this.infoURL = "https://en.wikipedia.org/wiki/BLAKE_(hash_function)#BLAKE2";
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+ this.inputType = "string";
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+ this.outputType = "string";
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+ this.args = [
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+ {
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+ "name": "Size",
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+ "type": "option",
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+ "value": ["512", "384", "256", "160", "128"]
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+ }
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+ ];
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+ }
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+
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+ /**
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+ * @param {string} input
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+ * @param {Object[]} args
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+ * @returns {string} The input having been hashed with BLAKE2b, HEX encoded.
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+ */
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+ run(input, args) {
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+ const [outSize] = args;
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+ return blakejs.blake2bHex(input, null, outSize / 8);
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+ }
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+
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+}
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+
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+export default BLAKE2b;
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