[checkstyle] (javadoc) MissingJavadocType
diff --git a/checkstyle-suppressions.xml b/checkstyle-suppressions.xml
index d6277ee..df53a17 100644
--- a/checkstyle-suppressions.xml
+++ b/checkstyle-suppressions.xml
@@ -19,4 +19,5 @@
-->
<!DOCTYPE suppressions PUBLIC "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN" "https://checkstyle.org/dtds/suppressions_1_2.dtd">
<suppressions>
+ <suppress checks="MissingJavadocType" files=".*\/internal\/.*\.java"/>
</suppressions>
diff --git a/src/main/java/org/apache/sling/commons/crypto/CryptoService.java b/src/main/java/org/apache/sling/commons/crypto/CryptoService.java
index aa4b424..e16ebe7 100644
--- a/src/main/java/org/apache/sling/commons/crypto/CryptoService.java
+++ b/src/main/java/org/apache/sling/commons/crypto/CryptoService.java
@@ -21,6 +21,9 @@
import org.jetbrains.annotations.NotNull;
import org.osgi.annotation.versioning.ProviderType;
+/**
+ * Service for encrypting messages and decrypting ciphertexts.
+ */
@ProviderType
public interface CryptoService {
diff --git a/src/main/java/org/apache/sling/commons/crypto/PasswordProvider.java b/src/main/java/org/apache/sling/commons/crypto/PasswordProvider.java
index 095ce31..999aaf0 100644
--- a/src/main/java/org/apache/sling/commons/crypto/PasswordProvider.java
+++ b/src/main/java/org/apache/sling/commons/crypto/PasswordProvider.java
@@ -21,6 +21,11 @@
import org.jetbrains.annotations.NotNull;
import org.osgi.annotation.versioning.ProviderType;
+/**
+ * Provider of passwords to use for example with password-based encryption (PBE).
+ *
+ * @see javax.crypto.spec.PBEKeySpec
+ */
@ProviderType
public interface PasswordProvider {
diff --git a/src/main/java/org/apache/sling/commons/crypto/SaltProvider.java b/src/main/java/org/apache/sling/commons/crypto/SaltProvider.java
index 5b63b8e..835cdbc 100644
--- a/src/main/java/org/apache/sling/commons/crypto/SaltProvider.java
+++ b/src/main/java/org/apache/sling/commons/crypto/SaltProvider.java
@@ -21,6 +21,11 @@
import org.jetbrains.annotations.NotNull;
import org.osgi.annotation.versioning.ProviderType;
+/**
+ * Provider of salts to use for example with password-based encryption (PBE).
+ *
+ * @see javax.crypto.spec.PBEKeySpec
+ */
@ProviderType
public interface SaltProvider {
diff --git a/src/main/java/org/apache/sling/commons/crypto/SecretKeyProvider.java b/src/main/java/org/apache/sling/commons/crypto/SecretKeyProvider.java
index e8f6a02..b6acba0 100644
--- a/src/main/java/org/apache/sling/commons/crypto/SecretKeyProvider.java
+++ b/src/main/java/org/apache/sling/commons/crypto/SecretKeyProvider.java
@@ -23,6 +23,11 @@
import org.jetbrains.annotations.NotNull;
import org.osgi.annotation.versioning.ProviderType;
+/**
+ * Provider of secret keys for encryption and decryption.
+ *
+ * @see javax.crypto.SecretKey
+ */
@ProviderType
public interface SecretKeyProvider {
