Add description for S3329 for Go

rules/S3329/go/rule.adoc

@@ -1,44 +1,75 @@
-FIXME: add a description
 
-// If you want to factorize the description uncomment the following line and create the file.
-//include::../description.adoc[]
+include::../summary.adoc[]
 
 == Why is this an issue?
 
-FIXME: remove the unused optional headers (that are commented out)
+include::../rationale.adoc[]
 
-//=== What is the potential impact?
+include::../impact.adoc[]
 
 == How to fix it
-//== How to fix it in FRAMEWORK NAME
 
 === Code examples
 
 ==== Noncompliant code example
 
 [source,go,diff-id=1,diff-type=noncompliant]
 ----
-FIXME
+import (
+	"crypto/cipher"
+)
+
+func encrypt(block cipher.Block, plaintext []byte) {
+	iv := []byte("fixed IVfixed IV")
+	encrypter := cipher.NewCBCEncrypter(block, iv)
+	encrypter.CryptBlocks(plaintext, plaintext)
+}
 ----
 
 ==== Compliant solution
 
+include::../common/fix/explicit-fix.adoc[]
+
 [source,go,diff-id=1,diff-type=compliant]
 ----
-FIXME
+import (
+	"crypto/cipher"
+	"crypto/rand"
+)
+
+func encrypt(block cipher.Block, plaintext []byte) {
+	iv := make([]byte, block.BlockSize())
+	rand.Read(iv)
+	encrypter := cipher.NewCBCEncrypter(block, iv)
+	encrypter.CryptBlocks(plaintext, plaintext)
+}
 ----
 
-//=== How does this work?
+=== How does this work?
+
+include::../common/fix/fix.adoc[]
+
+
+
+== Resources
+
+include::../common/resources/docs.adoc[]
+
+include::../common/resources/articles.adoc[]
+
+include::../common/resources/presentations.adoc[]
+
+include::../common/resources/standards.adoc[]
+
+ifdef::env-github,rspecator-view[]
+
+'''
+== Implementation Specification
+(visible only on this page)
 
-//=== Pitfalls
+include::../message.adoc[]
 
-//=== Going the extra mile
+'''
 
+endif::env-github,rspecator-view[]
 
-//== Resources
-//=== Documentation
-//=== Articles & blog posts
-//=== Conference presentations
-//=== Standards
-//=== External coding guidelines
-//=== Benchmarks