diff --git a/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/BccHandover.aidl b/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/BccHandover.aidl
index ab50c36..8baca94 100644
--- a/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/BccHandover.aidl
+++ b/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/BccHandover.aidl
@@ -35,7 +35,7 @@
 /* @hide */
 @RustDerive(Clone=true, Eq=true, Hash=true, Ord=true, PartialEq=true, PartialOrd=true) @VintfStability
 parcelable BccHandover {
-  byte[] cdiAttest;
-  byte[] cdiSeal;
+  byte[32] cdiAttest;
+  byte[32] cdiSeal;
   android.hardware.security.dice.Bcc bcc;
 }
diff --git a/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/InputValues.aidl b/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/InputValues.aidl
index 79583fb..e43c429 100644
--- a/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/InputValues.aidl
+++ b/security/dice/aidl/aidl_api/android.hardware.security.dice/current/android/hardware/security/dice/InputValues.aidl
@@ -35,10 +35,10 @@
 /* @hide */
 @RustDerive(Clone=true, Eq=true, Hash=true, Ord=true, PartialEq=true, PartialOrd=true) @VintfStability
 parcelable InputValues {
-  byte[] codeHash;
+  byte[64] codeHash;
   android.hardware.security.dice.Config config;
-  byte[] authorityHash;
+  byte[64] authorityHash;
   @nullable byte[] authorityDescriptor;
   android.hardware.security.dice.Mode mode = android.hardware.security.dice.Mode.NOT_INITIALIZED;
-  byte[] hidden;
+  byte[64] hidden;
 }
diff --git a/security/dice/aidl/android/hardware/security/dice/BccHandover.aidl b/security/dice/aidl/android/hardware/security/dice/BccHandover.aidl
index d522cef..6ca862c 100644
--- a/security/dice/aidl/android/hardware/security/dice/BccHandover.aidl
+++ b/security/dice/aidl/android/hardware/security/dice/BccHandover.aidl
@@ -27,13 +27,13 @@
 @RustDerive(Clone=true, Eq=true, PartialEq=true, Ord=true, PartialOrd=true, Hash=true)
 parcelable BccHandover {
     /**
-     * CDI_attest. Must a exactly 32 bytes of data.
+     * CDI_attest. Must be exactly 32 bytes of data.
      */
-    byte[] cdiAttest;
+    byte[32] cdiAttest;
     /**
-     * CDI_seal. Must a exactly 32 bytes of data.
+     * CDI_seal. Must be exactly 32 bytes of data.
      */
-    byte[] cdiSeal;
+    byte[32] cdiSeal;
     /**
      * CBOR encoded BCC.
      *
diff --git a/security/dice/aidl/android/hardware/security/dice/InputValues.aidl b/security/dice/aidl/android/hardware/security/dice/InputValues.aidl
index e44ef22..711d523 100644
--- a/security/dice/aidl/android/hardware/security/dice/InputValues.aidl
+++ b/security/dice/aidl/android/hardware/security/dice/InputValues.aidl
@@ -34,7 +34,7 @@
     /**
      * The target code hash. Must be exactly 64 bytes.
      */
-    byte[] codeHash;
+    byte[64] codeHash;
     /**
      * The configuration data.
      */
@@ -42,7 +42,7 @@
     /**
      * The authority hash. Must be exactly 64 bytes. Must be all zero if unused.
      */
-    byte[] authorityHash;
+    byte[64] authorityHash;
     /**
      * Optional free form authorityDescriptor.
      */
@@ -54,5 +54,5 @@
     /**
      * Optional hidden values. Must be exactly 64 bytes. Must be all zero if unused.
      */
-    byte[] hidden;
+    byte[64] hidden;
 }