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The random number generator implemented by 'new Random()' cannot withstand a cryptographic attack.Standard pseudorandom number generators cannot withstand cryptographic attacks.

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This commit is contained in:
dftre 2025-01-07 12:34:12 +08:00
parent 6496ae7000
commit 55e428ea9d
2 changed files with 5 additions and 4 deletions
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4
ruoyi-auth/ruoyi-auth-common/src/main/java/com/ruoyi/auth/common/utils/RandomCodeUtil.java
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@ -1,12 +1,12 @@
package com.ruoyi.auth.common.utils; package com.ruoyi.auth.common.utils;
import java.util.Random; import java.security.SecureRandom;
public class RandomCodeUtil { public class RandomCodeUtil {
public static String randomString(String characters, int length) { public static String randomString(String characters, int length) {
StringBuilder result = new StringBuilder(); StringBuilder result = new StringBuilder();
Random random = new Random(); SecureRandom random = new SecureRandom();
for (int i = 0; i < length; i++) { for (int i = 0; i < length; i++) {
int index = random.nextInt(characters.length()); int index = random.nextInt(characters.length());

5
ruoyi-framework/src/main/java/com/ruoyi/framework/config/KaptchaTextCreator.java
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@ -1,6 +1,7 @@
package com.ruoyi.framework.config; package com.ruoyi.framework.config;
import java.util.Random; import java.security.SecureRandom;
import com.google.code.kaptcha.text.impl.DefaultTextCreator; import com.google.code.kaptcha.text.impl.DefaultTextCreator;
/** /**
@ -16,7 +17,7 @@ public class KaptchaTextCreator extends DefaultTextCreator
public String getText() public String getText()
{ {
Integer result = 0; Integer result = 0;
Random random = new Random(); SecureRandom random = new SecureRandom();
int x = random.nextInt(10); int x = random.nextInt(10);
int y = random.nextInt(10); int y = random.nextInt(10);
StringBuilder suChinese = new StringBuilder(); StringBuilder suChinese = new StringBuilder();