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fix(SHA2): correct rounds logic for SHA-512 family in UI and library

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This commit is contained in:
mansiverma897993 2026-06-19 19:55:12 +05:30
parent 7a28e0534b
commit 7c401f0a57
3 changed files with 25 additions and 4 deletions
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12
src/core/config/scripts/fixCryptoApiImports.mjs
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@ -35,7 +35,7 @@ function walk(dir) {
const content = readFileSync(fullPath, "utf8");
// Add .mjs to imports if not present
const updated = content.replace(
let updated = content.replace(
/from "(\.[^"]*)";/g,
(match, p1) => {
if (p1.endsWith(".mjs")) return match;
@ -43,6 +43,16 @@ function walk(dir) {
}
);
// Patch sha512.mjs default rounds and loop step logic
if (entry.name === "sha512.mjs") {
updated = updated
.replace("options.rounds = options.rounds || 160;", "options.rounds = options.rounds || 80;")
.replace("for (let i = 0; i < this.options.rounds; i += 2) {", "for (let i = 0; i < this.options.rounds * 2; i += 2) {")
.replace("this.W = new Array(160);", "this.W = new Array(this.options.rounds * 2);")
.replace("options.rounds=160", "options.rounds=80")
.replace("(Must be greater than 32)", "(Must be greater than 16)");
}
if (updated !== content) {
writeFileSync(fullPath, updated, "utf8");
}

6
src/core/operations/SHA2.mjs
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@ -20,7 +20,7 @@ class SHA2 extends Operation {
this.name = "SHA2";
this.module = "Crypto";
this.description = "The SHA-2 (Secure Hash Algorithm 2) hash functions were designed by the NSA. SHA-2 includes significant changes from its predecessor, SHA-1. The SHA-2 family consists of hash functions with digests (hash values) that are 224, 256, 384 or 512 bits: SHA224, SHA256, SHA384, SHA512.<br><br><ul><li>SHA-512 operates on 64-bit words.</li><li>SHA-256 operates on 32-bit words.</li><li>SHA-384 is largely identical to SHA-512 but is truncated to 384 bits.</li><li>SHA-224 is largely identical to SHA-256 but is truncated to 224 bits.</li><li>SHA-512/224 and SHA-512/256 are truncated versions of SHA-512, but the initial values are generated using the method described in Federal Information Processing Standards (FIPS) PUB 180-4.</li></ul> The message digest algorithm for SHA256 variants consists, by default, of 64 rounds, and for SHA512 variants, it is, by default, 160.";
this.description = "The SHA-2 (Secure Hash Algorithm 2) hash functions were designed by the NSA. SHA-2 includes significant changes from its predecessor, SHA-1. The SHA-2 family consists of hash functions with digests (hash values) that are 224, 256, 384 or 512 bits: SHA224, SHA256, SHA384, SHA512.<br><br><ul><li>SHA-512 operates on 64-bit words.</li><li>SHA-256 operates on 32-bit words.</li><li>SHA-384 is largely identical to SHA-512 but is truncated to 384 bits.</li><li>SHA-224 is largely identical to SHA-256 but is truncated to 224 bits.</li><li>SHA-512/224 and SHA-512/256 are truncated versions of SHA-512, but the initial values are generated using the method described in Federal Information Processing Standards (FIPS) PUB 180-4.</li></ul> The message digest algorithm for SHA256 variants consists, by default, of 64 rounds, and for SHA512 variants, it is, by default, 80.";
this.infoURL = "https://wikipedia.org/wiki/SHA-2";
this.inputType = "ArrayBuffer";
this.outputType = "string";
@ -70,8 +70,8 @@ class SHA2 extends Operation {
{
name: "Rounds", // For SHA512 variants
type: "number",
value: 160,
min: 32
value: 80,
min: 16
}
];
}

11
tests/operations/tests/Hash.mjs
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@ -118,6 +118,17 @@ TestRegister.addTests([
}
]
},
{
name: "SHA2 512 with 80 rounds",
input: "Hello, World!",
expectedOutput: "374d794a95cdcfd8b35993185fef9ba368f160d8daf432d08ba9f1ed1e5abe6cc69291e0fa2fe0006a52570ef18c19def4e617c33ce52ef0a6e5fbe318cb0387",
recipeConfig: [
{
"op": "SHA2",
"args": ["512", null, 80]
}
]
},
{
name: "SHA2 512/224",
input: "Hello, World!",