rspec/rules/S5542/java/how-to-fix-it/java-cryptography-extension.adoc
Loris S 96811524d7
Modify JVM Crypto rules: Change framework name (#3550)
* Modify JVM Crypto rules: Change title

* changed names

* Apply suggestions from code review

* fixed includes
2024-01-25 15:18:07 +01:00

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== How to fix it in Java Cryptography Extension
=== Code examples
==== Noncompliant code example
include::../../common/fix/aes-noncompliant-example.adoc[]
[source,java,diff-id=1,diff-type=noncompliant]
----
import javax.crypto.Cipher;
import java.security.NoSuchAlgorithmException;
import javax.crypto.NoSuchPaddingException;
public static void main(String[] args) {
try {
Cipher.getInstance("AES/CBC/PKCS5Padding"); // Noncompliant
} catch(NoSuchAlgorithmException|NoSuchPaddingException e) {
// ...
}
}
----
include::../../common/fix/rsa-noncompliant-example.adoc[]
[source,java,diff-id=2,diff-type=noncompliant]
----
import javax.crypto.Cipher;
import java.security.NoSuchAlgorithmException;
import javax.crypto.NoSuchPaddingException;
public static void main(String[] args) {
try {
Cipher.getInstance("RSA/None/NoPadding"); // Noncompliant
} catch(NoSuchAlgorithmException|NoSuchPaddingException e) {
// ...
}
}
----
==== Compliant solution
include::../../common/fix/aes-compliant-example.adoc[]
[source,java,diff-id=1,diff-type=compliant]
----
import javax.crypto.Cipher;
import java.security.NoSuchAlgorithmException;
import javax.crypto.NoSuchPaddingException;
public static void main(String[] args) {
try {
Cipher.getInstance("AES/GCM/NoPadding");
} catch(NoSuchAlgorithmException|NoSuchPaddingException e) {
// ...
}
}
----
include::../../common/fix/rsa-compliant-example.adoc[]
[source,java,diff-id=2,diff-type=compliant]
----
import javax.crypto.Cipher;
import java.security.NoSuchAlgorithmException;
import javax.crypto.NoSuchPaddingException;
public static void main(String[] args) {
try {
Cipher.getInstance("RSA/ECB/OAEPWITHSHA-256ANDMGF1PADDING");
} catch(NoSuchAlgorithmException|NoSuchPaddingException e) {
// ...
}
}
----
=== How does this work?
include::../../common/fix/fix.adoc[]