diff --git a/lib/internal/crypto/keygen.js b/lib/internal/crypto/keygen.js
index a043a17f48deec..9ab21b7f2f17be 100644
--- a/lib/internal/crypto/keygen.js
+++ b/lib/internal/crypto/keygen.js
@@ -42,12 +42,15 @@ const { customPromisifyArgs } = require('internal/util');
 
 const {
   isInt32,
-  isUint32,
   validateFunction,
+  validateBuffer,
   validateString,
+  validateInt32,
   validateInteger,
   validateObject,
   validateOneOf,
+  validateInt32,
+  validateUint32,
 } = require('internal/validators');
 
 const {
@@ -174,16 +177,13 @@ 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') {
@@ -201,22 +201,20 @@ 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);
         }
       }
@@ -226,8 +224,8 @@ 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);
         }
       }
@@ -246,15 +244,13 @@ 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,
@@ -266,8 +262,7 @@ 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;
@@ -315,8 +310,8 @@ 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);
       }
@@ -324,19 +319,17 @@ function createJob(mode, type, options) {
       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,