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crypto: cleanup validation
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Many of the validations could be simplified and cleaned up by using
validators and to keep consistency.

PR-URL: #39841
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
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@VoltrexKeyva
VoltrexKeyva committed Apr 4, 2022
1 parent 9256728 commit aed18df
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Showing 2 changed files with 210 additions and 78 deletions.
61 changes: 26 additions & 35 deletions lib/internal/crypto/keygen.js
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Original file line number Diff line number Diff line change
Expand Up @@ -41,13 +41,14 @@ const {
const { customPromisifyArgs } = require('internal/util');

const {
isInt32,
isUint32,
validateFunction,
validateBuffer,
validateString,
validateInteger,
validateObject,
validateOneOf,
validateInt32,
validateUint32,
} = require('internal/validators');

const {
Expand Down Expand Up @@ -174,16 +175,13 @@ function createJob(mode, type, options) {
{
validateObject(options, 'options');
const { modulusLength } = options;
if (!isUint32(modulusLength))
throw new ERR_INVALID_ARG_VALUE('options.modulusLength', modulusLength);
validateUint32(modulusLength, 'options.modulusLength');

let { publicExponent } = options;
if (publicExponent == null) {
publicExponent = 0x10001;
} else if (!isUint32(publicExponent)) {
throw new ERR_INVALID_ARG_VALUE(
'options.publicExponent',
publicExponent);
} else {
validateUint32(publicExponent, 'options.publicExponent');
}

if (type === 'rsa') {
Expand All @@ -201,22 +199,20 @@ function createJob(mode, type, options) {

const pendingDeprecation = getOptionValue('--pending-deprecation');

if (saltLength !== undefined && (!isInt32(saltLength) || saltLength < 0))
throw new ERR_INVALID_ARG_VALUE('options.saltLength', saltLength);
if (hashAlgorithm !== undefined && typeof hashAlgorithm !== 'string')
throw new ERR_INVALID_ARG_VALUE('options.hashAlgorithm', hashAlgorithm);
if (mgf1HashAlgorithm !== undefined &&
typeof mgf1HashAlgorithm !== 'string')
throw new ERR_INVALID_ARG_VALUE('options.mgf1HashAlgorithm',
mgf1HashAlgorithm);
if (saltLength !== undefined)
validateInt32(saltLength, 'options.saltLength', 0);
if (hashAlgorithm !== undefined)
validateString(hashAlgorithm, 'options.hashAlgorithm');
if (mgf1HashAlgorithm !== undefined)
validateString(mgf1HashAlgorithm, 'options.mgf1HashAlgorithm');
if (hash !== undefined) {
pendingDeprecation && process.emitWarning(
'"options.hash" is deprecated, ' +
'use "options.hashAlgorithm" instead.',
'DeprecationWarning',
'DEP0154');
if (typeof hash !== 'string' ||
(hashAlgorithm && hash !== hashAlgorithm)) {
validateString(hash, 'options.hash');
if (hashAlgorithm && hash !== hashAlgorithm) {
throw new ERR_INVALID_ARG_VALUE('options.hash', hash);
}
}
Expand All @@ -226,8 +222,8 @@ function createJob(mode, type, options) {
'use "options.mgf1HashAlgorithm" instead.',
'DeprecationWarning',
'DEP0154');
if (typeof mgf1Hash !== 'string' ||
(mgf1HashAlgorithm && mgf1Hash !== mgf1HashAlgorithm)) {
validateString(mgf1Hash, 'options.mgf1Hash');
if (mgf1HashAlgorithm && mgf1Hash !== mgf1HashAlgorithm) {
throw new ERR_INVALID_ARG_VALUE('options.mgf1Hash', mgf1Hash);
}
}
Expand All @@ -246,15 +242,13 @@ function createJob(mode, type, options) {
{
validateObject(options, 'options');
const { modulusLength } = options;
if (!isUint32(modulusLength))
throw new ERR_INVALID_ARG_VALUE('options.modulusLength', modulusLength);
validateUint32(modulusLength, 'options.modulusLength');

let { divisorLength } = options;
if (divisorLength == null) {
divisorLength = -1;
} else if (!isInt32(divisorLength) || divisorLength < 0) {
throw new ERR_INVALID_ARG_VALUE('options.divisorLength', divisorLength);
}
} else
validateInt32(divisorLength, 'options.divisorLength', 0);

return new DsaKeyPairGenJob(
mode,
Expand All @@ -266,8 +260,7 @@ function createJob(mode, type, options) {
{
validateObject(options, 'options');
const { namedCurve } = options;
if (typeof namedCurve !== 'string')
throw new ERR_INVALID_ARG_VALUE('options.namedCurve', namedCurve);
validateString(namedCurve, 'options.namedCurve');
let { paramEncoding } = options;
if (paramEncoding == null || paramEncoding === 'named')
paramEncoding = OPENSSL_EC_NAMED_CURVE;
Expand Down Expand Up @@ -315,28 +308,26 @@ function createJob(mode, type, options) {
throw new ERR_INCOMPATIBLE_OPTION_PAIR('group', 'primeLength');
if (generator != null)
throw new ERR_INCOMPATIBLE_OPTION_PAIR('group', 'generator');
if (typeof group !== 'string')
throw new ERR_INVALID_ARG_VALUE('options.group', group);

validateString(group, 'options.group');

return new DhKeyPairGenJob(mode, group, ...encoding);
}

if (prime != null) {
if (primeLength != null)
throw new ERR_INCOMPATIBLE_OPTION_PAIR('prime', 'primeLength');
if (!isArrayBufferView(prime))
throw new ERR_INVALID_ARG_VALUE('options.prime', prime);

validateBuffer(prime, 'options.prime');
} else if (primeLength != null) {
if (!isInt32(primeLength) || primeLength < 0)
throw new ERR_INVALID_ARG_VALUE('options.primeLength', primeLength);
validateInt32(primeLength, 'options.primeLength', 0);
} else {
throw new ERR_MISSING_OPTION(
'At least one of the group, prime, or primeLength options');
}

if (generator != null) {
if (!isInt32(generator) || generator < 0)
throw new ERR_INVALID_ARG_VALUE('options.generator', generator);
validateInt32(generator, 'options.generator', 0);
}
return new DhKeyPairGenJob(
mode,
Expand Down
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