diff --git a/diced/open_dice/src/dice.rs b/diced/open_dice/src/dice.rs
new file mode 100644
index 0000000..c08cc40
--- /dev/null
+++ b/diced/open_dice/src/dice.rs
@@ -0,0 +1,112 @@
+// Copyright 2023, The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Structs and functions about the types used in DICE.
+//! This module mirrors the content in open-dice/include/dice/dice.h
+
+use core::ptr;
+use open_dice_cbor_bindgen::{
+    DiceConfigType, DiceInputValues, DiceMode, DICE_HASH_SIZE, DICE_HIDDEN_SIZE,
+    DICE_INLINE_CONFIG_SIZE,
+};
+
+/// The size of a DICE hash.
+pub const HASH_SIZE: usize = DICE_HASH_SIZE as usize;
+/// The size of the DICE hidden value.
+pub const HIDDEN_SIZE: usize = DICE_HIDDEN_SIZE as usize;
+/// The size of a DICE inline config.
+const INLINE_CONFIG_SIZE: usize = DICE_INLINE_CONFIG_SIZE as usize;
+
+/// Array type of hashes used by DICE.
+pub type Hash = [u8; HASH_SIZE];
+/// Array type of additional input.
+pub type Hidden = [u8; HIDDEN_SIZE];
+/// Array type of inline configuration values.
+pub type InlineConfig = [u8; INLINE_CONFIG_SIZE];
+
+/// Configuration descriptor for DICE input values.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum Config<'a> {
+    /// Reference to an inline descriptor.
+    Inline(&'a InlineConfig),
+    /// Reference to a free form descriptor that will be hashed by the implementation.
+    Descriptor(&'a [u8]),
+}
+
+impl Config<'_> {
+    fn dice_config_type(&self) -> DiceConfigType {
+        match self {
+            Self::Inline(_) => DiceConfigType::kDiceConfigTypeInline,
+            Self::Descriptor(_) => DiceConfigType::kDiceConfigTypeDescriptor,
+        }
+    }
+
+    fn inline_config(&self) -> InlineConfig {
+        match self {
+            Self::Inline(inline) => **inline,
+            Self::Descriptor(_) => [0u8; INLINE_CONFIG_SIZE],
+        }
+    }
+
+    fn descriptor_ptr(&self) -> *const u8 {
+        match self {
+            Self::Descriptor(descriptor) => descriptor.as_ptr(),
+            _ => ptr::null(),
+        }
+    }
+
+    fn descriptor_size(&self) -> usize {
+        match self {
+            Self::Descriptor(descriptor) => descriptor.len(),
+            _ => 0,
+        }
+    }
+}
+
+/// Wrap of `DiceInputValues`.
+#[derive(Clone, Debug)]
+pub struct InputValues(DiceInputValues);
+
+impl InputValues {
+    /// Creates a new `InputValues`.
+    pub fn new(
+        code_hash: &Hash,
+        code_descriptor: Option<&[u8]>,
+        config: Config,
+        authority_hash: &Hash,
+        authority_descriptor: Option<&[u8]>,
+        mode: DiceMode,
+        hidden: Option<&Hidden>,
+    ) -> Self {
+        Self(DiceInputValues {
+            code_hash: *code_hash,
+            code_descriptor: code_descriptor.map_or(ptr::null(), |d| d.as_ptr()),
+            code_descriptor_size: code_descriptor.map_or(0, |d| d.len()),
+            config_type: config.dice_config_type(),
+            config_value: config.inline_config(),
+            config_descriptor: config.descriptor_ptr(),
+            config_descriptor_size: config.descriptor_size(),
+            authority_hash: *authority_hash,
+            authority_descriptor: authority_descriptor.map_or(ptr::null(), |d| d.as_ptr()),
+            authority_descriptor_size: authority_descriptor.map_or(0, |d| d.len()),
+            mode,
+            hidden: hidden.map_or([0; HIDDEN_SIZE], |h| *h),
+        })
+    }
+
+    /// Returns a raw pointer to the wrapped `DiceInputValues`.
+    pub fn as_ptr(&self) -> *const DiceInputValues {
+        &self.0 as *const DiceInputValues
+    }
+}
diff --git a/diced/open_dice/src/lib.rs b/diced/open_dice/src/lib.rs
new file mode 100644
index 0000000..96e2569
--- /dev/null
+++ b/diced/open_dice/src/lib.rs
@@ -0,0 +1,22 @@
+// Copyright 2023, The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Implements safe wrappers around the public API of libopen-dice for
+//! both std and nostd usages.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+mod dice;
+
+pub use dice::{Config, Hash, Hidden, InlineConfig, InputValues, HASH_SIZE, HIDDEN_SIZE};