rspec/rules/S2277/java/rule.adoc

== Why is this an issue?

Without OAEP in RSA encryption, it takes less work for an attacker to decrypt the data or infer patterns from the ciphertext. This rule logs an issue as soon as a literal value starts with ``++RSA/NONE++``. 

=== Noncompliant code example

[source,java]
----
Cipher rsa = javax.crypto.Cipher.getInstance("RSA/NONE/NoPadding");
----

=== Compliant solution

[source,java]
----
Cipher rsa = javax.crypto.Cipher.getInstance("RSA/ECB/OAEPWITHSHA-256ANDMGF1PADDING");
----

include::../see.adoc[]

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

Use an RSA algorithm with an OAEP (Optimal Asymmetric Encryption Padding).


'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]

endif::env-github,rspecator-view[]