initial setup for bssl crate with hmac and sha2 bindings
- update rust folder to split into `bssl` and `bssl-sys`
- add initial bindings for hmac and a subset of sha2

Change-Id: I09e0e778c1590de6818a49e19529ceb011e4d9f6
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/57285
Reviewed-by: Bob Beck <bbe@google.com>
Commit-Queue: Bob Beck <bbe@google.com>
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/.gitignore b/.gitignore
index 68dca6c..ac0ede8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@
 util/bot/sde-win32
 util/bot/sde-win32.tar.xz
 util/bot/win_toolchain.json
+target/
diff --git a/rust/CMakeLists.txt b/rust/CMakeLists.txt
index 422905f..fcdf3db 100644
--- a/rust/CMakeLists.txt
+++ b/rust/CMakeLists.txt
@@ -1,39 +1 @@
-# Additional interop for things like macros and inlined functions.
-add_library(rust_wrapper STATIC rust_wrapper.c)
-target_link_libraries(rust_wrapper crypto)
-
-# Generate architecture-specific wrappers.
-set(WRAPPER_TARGET ${CMAKE_CURRENT_BINARY_DIR}/src/wrapper_${RUST_BINDINGS}.rs)
-set(COMMAND ${BINDGEN_EXECUTABLE} "wrapper.h"
-            -o ${WRAPPER_TARGET}
-            --no-derive-default
-            --enable-function-attribute-detection
-            --use-core
-            --size_t-is-usize
-            --default-macro-constant-type="signed"
-            --rustified-enum="point_conversion_form_t"
-            --allowlist-file=".*/include/openssl/.*\\.h"
-            --allowlist-file=".*/rust_wrapper\\.h"
-            -- # these are LLVM arg passthroughs
-            -I../include
-            # https://doc.rust-lang.org/nightly/rustc/platform-support.html
-            --target=${RUST_BINDINGS})
-
-set(INCLUDES "include!(\"wrapper_${RUST_BINDINGS}.rs\");\n")
-
-add_custom_target(
-  bindgen_rust_${RUST_BINDINGS}
-  ALL
-  ${COMMAND}
-  BYPRODUCTS ${WRAPPER_TARGET}
-  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-)
-
-# move files into build directory
-configure_file("src/lib.rs" "src/lib.rs")
-
-if(NOT BUILD_SHARED_LIBS)
-  configure_file("build.rs" "build.rs" COPYONLY)
-endif()
-
-configure_file("Cargo.toml" "Cargo.toml" COPYONLY)
+add_subdirectory(bssl-sys)
\ No newline at end of file
diff --git a/rust/bssl-crypto/Cargo.lock b/rust/bssl-crypto/Cargo.lock
new file mode 100644
index 0000000..ed7fe34
--- /dev/null
+++ b/rust/bssl-crypto/Cargo.lock
@@ -0,0 +1,14 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "bssl-crypto"
+version = "0.1.0"
+dependencies = [
+ "bssl-sys",
+]
+
+[[package]]
+name = "bssl-sys"
+version = "0.1.0"
diff --git a/rust/bssl-crypto/Cargo.toml b/rust/bssl-crypto/Cargo.toml
new file mode 100644
index 0000000..57a6440
--- /dev/null
+++ b/rust/bssl-crypto/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "bssl-crypto"
+version = "0.1.0"
+edition = "2021"
+publish = false
+license = "MIT"
+
+[dependencies]
+# the crate will need to be generated at this path by running this command at root
+# `mkdir build && cd build && cmake -G Ninja .. -DRUST_BINDINGS="$(gcc -dumpmachine)" && ninja`
+bssl-sys = {path = "../../build/rust/bssl-sys"}
\ No newline at end of file
diff --git a/rust/bssl-crypto/README.md b/rust/bssl-crypto/README.md
new file mode 100644
index 0000000..9e10fad
--- /dev/null
+++ b/rust/bssl-crypto/README.md
@@ -0,0 +1,14 @@
+bssl-crypto
+============
+
+rust bindings to boringssl which wrap bssl-sys, a low level autogenerated binding
+
+Before using this crate, first generate the bssl-sys bindings by running this command from the root of the repo:
+```
+mkdir build && cd build && cmake -G Ninja .. -DRUST_BINDINGS="$(gcc -dumpmachine)" && ninja
+```
+
+Then to run all tests:
+```
+cd rust/bssl-crypto && cargo clippy && cargo deny check && cargo test
+```
\ No newline at end of file
diff --git a/rust/bssl-crypto/deny.toml b/rust/bssl-crypto/deny.toml
new file mode 100644
index 0000000..d398485
--- /dev/null
+++ b/rust/bssl-crypto/deny.toml
@@ -0,0 +1,212 @@
+# This template contains all of the possible sections and their default values
+
+# Note that all fields that take a lint level have these possible values:
+# * deny - An error will be produced and the check will fail
+# * warn - A warning will be produced, but the check will not fail
+# * allow - No warning or error will be produced, though in some cases a note
+# will be
+
+# The values provided in this template are the default values that will be used
+# when any section or field is not specified in your own configuration
+
+# If 1 or more target triples (and optionally, target_features) are specified,
+# only the specified targets will be checked when running `cargo deny check`.
+# This means, if a particular package is only ever used as a target specific
+# dependency, such as, for example, the `nix` crate only being used via the
+# `target_family = "unix"` configuration, that only having windows targets in
+# this list would mean the nix crate, as well as any of its exclusive
+# dependencies not shared by any other crates, would be ignored, as the target
+# list here is effectively saying which targets you are building for.
+targets = [
+    # The triple can be any string, but only the target triples built in to
+    # rustc (as of 1.40) can be checked against actual config expressions
+    #{ triple = "x86_64-unknown-linux-musl" },
+    # You can also specify which target_features you promise are enabled for a
+    # particular target. target_features are currently not validated against
+    # the actual valid features supported by the target architecture.
+    #{ triple = "wasm32-unknown-unknown", features = ["atomics"] },
+]
+
+# This section is considered when running `cargo deny check advisories`
+# More documentation for the advisories section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/advisories/cfg.html
+[advisories]
+# The path where the advisory database is cloned/fetched into
+db-path = "~/.cargo/advisory-db"
+# The url(s) of the advisory databases to use
+db-urls = ["https://github.com/rustsec/advisory-db"]
+# The lint level for security vulnerabilities
+vulnerability = "deny"
+# The lint level for unmaintained crates
+unmaintained = "warn"
+# The lint level for crates that have been yanked from their source registry
+yanked = "warn"
+# The lint level for crates with security notices. Note that as of
+# 2019-12-17 there are no security notice advisories in
+# https://github.com/rustsec/advisory-db
+notice = "warn"
+# A list of advisory IDs to ignore. Note that ignored advisories will still
+# output a note when they are encountered.
+ignore = [
+    #"RUSTSEC-0000-0000",
+]
+# Threshold for security vulnerabilities, any vulnerability with a CVSS score
+# lower than the range specified will be ignored. Note that ignored advisories
+# will still output a note when they are encountered.
+# * None - CVSS Score 0.0
+# * Low - CVSS Score 0.1 - 3.9
+# * Medium - CVSS Score 4.0 - 6.9
+# * High - CVSS Score 7.0 - 8.9
+# * Critical - CVSS Score 9.0 - 10.0
+#severity-threshold =
+
+# If this is true, then cargo deny will use the git executable to fetch advisory database.
+# If this is false, then it uses a built-in git library.
+# Setting this to true can be helpful if you have special authentication requirements that cargo-deny does not support.
+# See Git Authentication for more information about setting up git authentication.
+#git-fetch-with-cli = true
+
+# This section is considered when running `cargo deny check licenses`
+# More documentation for the licenses section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/licenses/cfg.html
+[licenses]
+# The lint level for crates which do not have a detectable license
+unlicensed = "deny"
+# List of explicitly allowed licenses
+# See https://spdx.org/licenses/ for list of possible licenses
+# [possible values: any SPDX 3.11 short identifier (+ optional exception)].
+allow = [
+    "MIT",
+    "Apache-2.0",
+    "Apache-2.0 WITH LLVM-exception",
+    "Unicode-DFS-2016",
+]
+# List of explicitly disallowed licenses
+# See https://spdx.org/licenses/ for list of possible licenses
+# [possible values: any SPDX 3.11 short identifier (+ optional exception)].
+deny = [
+    #"Nokia",
+]
+# Lint level for licenses considered copyleft
+copyleft = "warn"
+# Blanket approval or denial for OSI-approved or FSF Free/Libre licenses
+# * both - The license will be approved if it is both OSI-approved *AND* FSF
+# * either - The license will be approved if it is either OSI-approved *OR* FSF
+# * osi-only - The license will be approved if is OSI-approved *AND NOT* FSF
+# * fsf-only - The license will be approved if is FSF *AND NOT* OSI-approved
+# * neither - This predicate is ignored and the default lint level is used
+allow-osi-fsf-free = "neither"
+# Lint level used when no other predicates are matched
+# 1. License isn't in the allow or deny lists
+# 2. License isn't copyleft
+# 3. License isn't OSI/FSF, or allow-osi-fsf-free = "neither"
+default = "deny"
+# The confidence threshold for detecting a license from license text.
+# The higher the value, the more closely the license text must be to the
+# canonical license text of a valid SPDX license file.
+# [possible values: any between 0.0 and 1.0].
+confidence-threshold = 0.8
+# Allow 1 or more licenses on a per-crate basis, so that particular licenses
+# aren't accepted for every possible crate as with the normal allow list
+exceptions = [
+    # Each entry is the crate and version constraint, and its specific allow
+    # list
+    #{ allow = ["Zlib"], name = "adler32", version = "*" },
+]
+
+# Some crates don't have (easily) machine readable licensing information,
+# adding a clarification entry for it allows you to manually specify the
+# licensing information
+#[[licenses.clarify]]
+# The name of the crate the clarification applies to
+#name = "ring"
+# The optional version constraint for the crate
+#version = "*"
+# The SPDX expression for the license requirements of the crate
+#expression = "MIT AND ISC AND OpenSSL"
+# One or more files in the crate's source used as the "source of truth" for
+# the license expression. If the contents match, the clarification will be used
+# when running the license check, otherwise the clarification will be ignored
+# and the crate will be checked normally, which may produce warnings or errors
+# depending on the rest of your configuration
+#license-files = [
+    # Each entry is a crate relative path, and the (opaque) hash of its contents
+    #{ path = "LICENSE", hash = 0xbd0eed23 }
+#]
+
+[licenses.private]
+# If true, ignores workspace crates that aren't published, or are only
+# published to private registries.
+# To see how to mark a crate as unpublished (to the official registry),
+# visit https://doc.rust-lang.org/cargo/reference/manifest.html#the-publish-field.
+ignore = false
+# One or more private registries that you might publish crates to, if a crate
+# is only published to private registries, and ignore is true, the crate will
+# not have its license(s) checked
+registries = [
+    #"https://sekretz.com/registry
+]
+
+# This section is considered when running `cargo deny check bans`.
+# More documentation about the 'bans' section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/bans/cfg.html
+[bans]
+# Lint level for when multiple versions of the same crate are detected
+multiple-versions = "warn"
+# Lint level for when a crate version requirement is `*`
+wildcards = "allow"
+# The graph highlighting used when creating dotgraphs for crates
+# with multiple versions
+# * lowest-version - The path to the lowest versioned duplicate is highlighted
+# * simplest-path - The path to the version with the fewest edges is highlighted
+# * all - Both lowest-version and simplest-path are used
+highlight = "all"
+# List of crates that are allowed. Use with care!
+allow = [
+    #{ name = "ansi_term", version = "=0.11.0" },
+]
+# List of crates to deny
+deny = [
+    # Each entry the name of a crate and a version range. If version is
+    # not specified, all versions will be matched.
+    #{ name = "ansi_term", version = "=0.11.0" },
+    #
+    # Wrapper crates can optionally be specified to allow the crate when it
+    # is a direct dependency of the otherwise banned crate
+    #{ name = "ansi_term", version = "=0.11.0", wrappers = [] },
+]
+# Certain crates/versions that will be skipped when doing duplicate detection.
+skip = [
+    #{ name = "ansi_term", version = "=0.11.0" },
+]
+# Similarly to `skip` allows you to skip certain crates during duplicate
+# detection. Unlike skip, it also includes the entire tree of transitive
+# dependencies starting at the specified crate, up to a certain depth, which is
+# by default infinite
+skip-tree = [
+    #{ name = "ansi_term", version = "=0.11.0", depth = 20 },
+]
+
+# This section is considered when running `cargo deny check sources`.
+# More documentation about the 'sources' section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/sources/cfg.html
+[sources]
+# Lint level for what to happen when a crate from a crate registry that is not
+# in the allow list is encountered
+unknown-registry = "warn"
+# Lint level for what to happen when a crate from a git repository that is not
+# in the allow list is encountered
+unknown-git = "warn"
+# List of URLs for allowed crate registries. Defaults to the crates.io index
+# if not specified. If it is specified but empty, no registries are allowed.
+allow-registry = ["https://github.com/rust-lang/crates.io-index"]
+# List of URLs for allowed Git repositories
+allow-git = []
+
+[sources.allow-org]
+# 1 or more github.com organizations to allow git sources for
+#github = [""]
+# 1 or more gitlab.com organizations to allow git sources for
+#gitlab = [""]
+# 1 or more bitbucket.org organizations to allow git sources for
+#bitbucket = [""]
diff --git a/rust/bssl-crypto/src/digest.rs b/rust/bssl-crypto/src/digest.rs
new file mode 100644
index 0000000..cecdfdf
--- /dev/null
+++ b/rust/bssl-crypto/src/digest.rs
@@ -0,0 +1,80 @@
+/* Copyright (c) 2023, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+use crate::ForeignTypeRef;
+
+/// The BoringSSL implemented SHA-256 digest algorithm.
+#[derive(Clone)]
+pub struct Sha256 {}
+
+/// The BoringSSL implemented SHA-512 digest algorithm.
+#[derive(Clone)]
+pub struct Sha512 {}
+
+/// A reference to an [`Md`], which abstracts the details of a specific hash function allowing code
+/// to deal with the concept of a "hash function" without needing to know exactly which hash function
+/// it is.
+pub(crate) struct MdRef;
+
+unsafe impl ForeignTypeRef for MdRef {
+    type CType = bssl_sys::EVP_MD;
+}
+
+/// Used internally to get a BoringSSL internal MD
+pub(crate) trait Md {
+    /// gets a reference to a message digest algorithm to be used by the hkdf implementation
+    fn get_md() -> &'static MdRef;
+}
+
+impl Md for Sha256 {
+    fn get_md() -> &'static MdRef {
+        // Safety:
+        // - this always returns a valid pointer to an EVP_MD
+        unsafe { MdRef::from_ptr(bssl_sys::EVP_sha256() as *mut _) }
+    }
+}
+
+impl Md for Sha512 {
+    fn get_md() -> &'static MdRef {
+        // Safety:
+        // - this always returns a valid pointer to an EVP_MD
+        unsafe { MdRef::from_ptr(bssl_sys::EVP_sha512() as *mut _) }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_sha256_c_type() {
+        unsafe {
+            assert_eq!(
+                MdRef::from_ptr(bssl_sys::EVP_sha256() as *mut _).as_ptr(),
+                bssl_sys::EVP_sha256() as *mut _
+            )
+        }
+    }
+
+    #[test]
+    fn test_sha512_c_type() {
+        unsafe {
+            assert_eq!(
+                MdRef::from_ptr(bssl_sys::EVP_sha512() as *mut _).as_ptr(),
+                bssl_sys::EVP_sha512() as *mut _
+            )
+        }
+    }
+}
diff --git a/rust/bssl-crypto/src/hmac.rs b/rust/bssl-crypto/src/hmac.rs
new file mode 100644
index 0000000..829816c
--- /dev/null
+++ b/rust/bssl-crypto/src/hmac.rs
@@ -0,0 +1,391 @@
+/* Copyright (c) 2023, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+use crate::{
+    digest::{Md, Sha256, Sha512},
+    CSlice, ForeignTypeRef as _, PanicResultHandler,
+};
+use core::{
+    ffi::{c_uint, c_void},
+    marker::PhantomData,
+    ptr,
+};
+
+/// Computes the HMAC-SHA-256 of `data` as a one-shot operation.
+///
+/// Calculates the HMAC of data, using the given `key` and returns the result.
+/// It returns the computed hmac or `InvalidLength` of the input key size is too large.
+/// Can panic if memory allocation fails in the underlying BoringSSL code.
+pub fn hmac_sha_256(key: &[u8], data: &[u8]) -> Result<[u8; 32], InvalidLength> {
+    hmac::<32, Sha256>(key, data)
+}
+
+/// Computes the HMAC-SHA-512 of `data` as a one-shot operation.
+///
+/// Calculates the HMAC of data, using the given `key` and returns the result.
+/// It returns the computed hmac or `InvalidLength` of the input key size is too large.
+/// Can panic if memory allocation fails in the underlying BoringSSL code.
+pub fn hmac_sha_512(key: &[u8], data: &[u8]) -> Result<[u8; 64], InvalidLength> {
+    hmac::<64, Sha512>(key, data)
+}
+
+/// The BoringSSL HMAC-SHA-256 implementation. The operations may panic if memory allocation fails
+/// in BoringSSL.
+pub struct HmacSha256(Hmac<32, Sha256>);
+
+impl HmacSha256 {
+    /// Create a new hmac from a fixed size key.
+    pub fn new(key: [u8; 32]) -> Self {
+        Self(Hmac::new(key))
+    }
+
+    /// Create new hmac value from variable size key.
+    pub fn new_from_slice(key: &[u8]) -> Result<Self, InvalidLength> {
+        Hmac::new_from_slice(key).map(Self)
+    }
+
+    /// Update state using the provided data.
+    pub fn update(&mut self, data: &[u8]) {
+        self.0.update(data)
+    }
+
+    /// Obtain the hmac computation consuming the hmac instance.
+    pub fn finalize(self) -> [u8; 32] {
+        self.0.finalize()
+    }
+
+    /// Check that the tag value is correct for the processed input.
+    pub fn verify_slice(self, tag: &[u8]) -> Result<(), MacError> {
+        self.0.verify_slice(tag)
+    }
+
+    /// Check that the tag value is correct for the processed input.
+    pub fn verify(self, tag: [u8; 32]) -> Result<(), MacError> {
+        self.0.verify(tag)
+    }
+
+    /// Check truncated tag correctness using left side bytes of the calculated tag.
+    pub fn verify_truncated_left(self, tag: &[u8]) -> Result<(), MacError> {
+        self.0.verify_truncated_left(tag)
+    }
+}
+
+/// The BoringSSL HMAC-SHA-512 implementation. The operations may panic if memory allocation fails
+/// in BoringSSL.
+pub struct HmacSha512(Hmac<64, Sha512>);
+
+impl HmacSha512 {
+    /// Create a new hmac from a fixed size key.
+    pub fn new(key: [u8; 64]) -> Self {
+        Self(Hmac::new(key))
+    }
+
+    /// Create new hmac value from variable size key.
+    pub fn new_from_slice(key: &[u8]) -> Result<Self, InvalidLength> {
+        Hmac::new_from_slice(key).map(Self)
+    }
+
+    /// Update state using the provided data.
+    pub fn update(&mut self, data: &[u8]) {
+        self.0.update(data)
+    }
+
+    /// Obtain the hmac computation consuming the hmac instance.
+    pub fn finalize(self) -> [u8; 64] {
+        self.0.finalize()
+    }
+
+    /// Check that the tag value is correct for the processed input.
+    pub fn verify_slice(self, tag: &[u8]) -> Result<(), MacError> {
+        self.0.verify_slice(tag)
+    }
+
+    /// Check that the tag value is correct for the processed input.
+    pub fn verify(self, tag: [u8; 64]) -> Result<(), MacError> {
+        self.0.verify(tag)
+    }
+
+    /// Check truncated tag correctness using left side bytes of the calculated tag.
+    pub fn verify_truncated_left(self, tag: &[u8]) -> Result<(), MacError> {
+        self.0.verify_truncated_left(tag)
+    }
+}
+
+/// Error type for when the provided key material length is invalid.
+#[derive(Debug)]
+pub struct InvalidLength;
+
+/// Error type for when the output of the hmac operation is not equal to the expected value.
+#[derive(Debug)]
+pub struct MacError;
+
+/// Private generically implemented function for computing hmac as a oneshot operation.
+/// This should only be exposed publicly by types with the correct output size `N` which corresponds
+/// to the output size of the provided generic hash function. Ideally `N` would just come from `M`,
+/// but this is not possible until the Rust language can support the `min_const_generics` feature.
+/// Until then we will have to pass both separately: https://github.com/rust-lang/rust/issues/60551
+#[inline]
+fn hmac<const N: usize, M: Md>(key: &[u8], data: &[u8]) -> Result<[u8; N], InvalidLength> {
+    let mut out = [0_u8; N];
+    let mut size: c_uint = 0;
+
+    // Safety:
+    // - buf always contains N bytes of space
+    // - If NULL is returned on error we panic immediately
+    unsafe {
+        bssl_sys::HMAC(
+            M::get_md().as_ptr(),
+            CSlice::from(key).as_ptr(),
+            key.len(),
+            CSlice::from(data).as_ptr(),
+            data.len(),
+            out.as_mut_ptr(),
+            &mut size as *mut c_uint,
+        )
+    }
+    .panic_if_error();
+
+    Ok(out)
+}
+
+/// Private generically implemented hmac  instance given a generic hash function and a length `N`,
+/// where `N` is the output size of the hash function. This should only be exposed publicly by
+/// wrapper types with the correct output size `N` which corresponds to the output size of the
+/// provided generic hash function. Ideally `N` would just come from `M`, but this is not possible
+/// until the Rust language can support the `min_const_generics` feature. Until then we will have to
+/// pass both separately: https://github.com/rust-lang/rust/issues/60551
+struct Hmac<const N: usize, M: Md> {
+    ctx: *mut bssl_sys::HMAC_CTX,
+    _marker: PhantomData<M>,
+}
+
+impl<const N: usize, M: Md> Hmac<N, M> {
+    /// Infallible HMAC creation from a fixed length key.
+    fn new(key: [u8; N]) -> Self {
+        #[allow(clippy::expect_used)]
+        Self::new_from_slice(&key).expect("output length of hash is always a valid hmac key size")
+    }
+
+    /// Create new hmac value from variable size key. Panics on allocation failure
+    /// returns InvalidLength if the key length is greater than the max message digest block size.
+    fn new_from_slice(key: &[u8]) -> Result<Self, InvalidLength> {
+        (validate_key_len(key.len()))
+            .then(|| {
+                // Safety:
+                // - HMAC_CTX_new panics if allocation fails
+                let ctx = unsafe { bssl_sys::HMAC_CTX_new() };
+                ctx.panic_if_error();
+
+                // Safety:
+                // - HMAC_Init_ex must be called with a context previously created with HMAC_CTX_new,
+                //   which is the line above.
+                // - HMAC_Init_ex may return an error if key is null but the md is different from
+                //   before. This is avoided here since key is guaranteed to be non-null.
+                // - HMAC_Init_ex returns 0 on allocation failure in which case we panic
+                unsafe {
+                    bssl_sys::HMAC_Init_ex(
+                        ctx,
+                        CSlice::from(key).as_ptr() as *const c_void,
+                        key.len(),
+                        M::get_md().as_ptr(),
+                        ptr::null_mut(),
+                    )
+                }
+                .panic_if_error();
+
+                Self {
+                    ctx,
+                    _marker: Default::default(),
+                }
+            })
+            .ok_or(InvalidLength)
+    }
+
+    /// Update state using the provided data, can be called repeatedly.
+    fn update(&mut self, data: &[u8]) {
+        unsafe {
+            // Safety: HMAC_Update will always return 1, in case it doesnt we panic
+            bssl_sys::HMAC_Update(self.ctx, data.as_ptr(), data.len())
+        }
+        .panic_if_error()
+    }
+
+    /// Obtain the hmac computation consuming the hmac instance.
+    fn finalize(self) -> [u8; N] {
+        let mut buf = [0_u8; N];
+        let mut size: c_uint = 0;
+        // Safety:
+        // - hmac has a fixed size output of N which will never exceed the length of an N
+        // length array
+        // - on allocation failure we panic
+        unsafe { bssl_sys::HMAC_Final(self.ctx, buf.as_mut_ptr(), &mut size as *mut c_uint) }
+            .panic_if_error();
+        buf
+    }
+
+    /// Check that the tag value is correct for the processed input.
+    fn verify(self, tag: [u8; N]) -> Result<(), MacError> {
+        self.verify_slice(&tag)
+    }
+
+    /// Check truncated tag correctness using all bytes
+    /// of calculated tag.
+    ///
+    /// Returns `Error` if `tag` is not valid or not equal in length
+    /// to MAC's output.
+    fn verify_slice(self, tag: &[u8]) -> Result<(), MacError> {
+        tag.len().eq(&N).then_some(()).ok_or(MacError)?;
+        self.verify_truncated_left(tag)
+    }
+
+    /// Check truncated tag correctness using left side bytes
+    /// (i.e. `tag[..n]`) of calculated tag.
+    ///
+    /// Returns `Error` if `tag` is not valid or empty.
+    fn verify_truncated_left(self, tag: &[u8]) -> Result<(), MacError> {
+        let len = tag.len();
+        if len == 0 || len > N {
+            return Err(MacError);
+        }
+
+        let result = &self.finalize()[..len];
+
+        // Safety:
+        // - if a != b is undefined, it simply returns a non-zero result
+        unsafe {
+            bssl_sys::CRYPTO_memcmp(
+                CSlice::from(result).as_ptr() as *const c_void,
+                CSlice::from(tag).as_ptr() as *const c_void,
+                result.len(),
+            )
+        }
+        .eq(&0)
+        .then_some(())
+        .ok_or(MacError)
+    }
+}
+
+impl<const N: usize, M: Md> Drop for Hmac<N, M> {
+    fn drop(&mut self) {
+        unsafe { bssl_sys::HMAC_CTX_free(self.ctx) }
+    }
+}
+
+// make sure key len is within a valid range
+fn validate_key_len(len: usize) -> bool {
+    if len > bssl_sys::EVP_MAX_MD_BLOCK_SIZE as usize {
+        return false;
+    }
+    true
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn hmac_sha256_test() {
+        let expected_hmac = [
+            0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53, 0x5c, 0xa8, 0xaf, 0xce, 0xaf, 0xb,
+            0xf1, 0x2b, 0x88, 0x1d, 0xc2, 0x0, 0xc9, 0x83, 0x3d, 0xa7, 0x26, 0xe9, 0x37, 0x6c,
+            0x2e, 0x32, 0xcf, 0xf7,
+        ];
+
+        let key: [u8; 20] = [0x0b; 20];
+        let data = b"Hi There";
+
+        let mut hmac = HmacSha256::new_from_slice(&key).expect("length is valid");
+        hmac.update(data);
+        let hmac_result: [u8; 32] = hmac.finalize();
+
+        // let hmac_result =
+        //     hmac(Md::sha256(), &key, data, &mut out).expect("Couldn't calculate sha256 hmac");
+        assert_eq!(&hmac_result, &expected_hmac);
+    }
+
+    #[test]
+    fn hmac_sha256_fixed_size_key_test() {
+        let expected_hmac = [
+            0x19, 0x8a, 0x60, 0x7e, 0xb4, 0x4b, 0xfb, 0xc6, 0x99, 0x3, 0xa0, 0xf1, 0xcf, 0x2b,
+            0xbd, 0xc5, 0xba, 0xa, 0xa3, 0xf3, 0xd9, 0xae, 0x3c, 0x1c, 0x7a, 0x3b, 0x16, 0x96,
+            0xa0, 0xb6, 0x8c, 0xf7,
+        ];
+
+        let key: [u8; 32] = [0x0b; 32];
+        let data = b"Hi There";
+
+        let mut hmac = HmacSha256::new(key);
+        hmac.update(data);
+        let hmac_result: [u8; 32] = hmac.finalize();
+        assert_eq!(&hmac_result, &expected_hmac);
+    }
+
+    #[test]
+    fn hmac_sha256_update_test() {
+        let expected_hmac = [
+            0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53, 0x5c, 0xa8, 0xaf, 0xce, 0xaf, 0xb,
+            0xf1, 0x2b, 0x88, 0x1d, 0xc2, 0x0, 0xc9, 0x83, 0x3d, 0xa7, 0x26, 0xe9, 0x37, 0x6c,
+            0x2e, 0x32, 0xcf, 0xf7,
+        ];
+        let key: [u8; 20] = [0x0b; 20];
+        let data = b"Hi There";
+        let mut hmac: HmacSha256 = HmacSha256::new_from_slice(&key).expect("");
+        hmac.update(data);
+        let result = hmac.finalize();
+        assert_eq!(&result, &expected_hmac);
+        assert_eq!(result.len(), 32);
+    }
+
+    #[test]
+    fn hmac_sha256_test_big_buffer() {
+        let expected_hmac = [
+            0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53, 0x5c, 0xa8, 0xaf, 0xce, 0xaf, 0xb,
+            0xf1, 0x2b, 0x88, 0x1d, 0xc2, 0x0, 0xc9, 0x83, 0x3d, 0xa7, 0x26, 0xe9, 0x37, 0x6c,
+            0x2e, 0x32, 0xcf, 0xf7,
+        ];
+        let key: [u8; 20] = [0x0b; 20];
+        let data = b"Hi There";
+        let hmac_result = hmac_sha_256(&key, data).expect("Couldn't calculate sha256 hmac");
+        assert_eq!(&hmac_result, &expected_hmac);
+    }
+
+    #[test]
+    fn hmac_sha256_update_chunks_test() {
+        let expected_hmac = [
+            0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53, 0x5c, 0xa8, 0xaf, 0xce, 0xaf, 0xb,
+            0xf1, 0x2b, 0x88, 0x1d, 0xc2, 0x0, 0xc9, 0x83, 0x3d, 0xa7, 0x26, 0xe9, 0x37, 0x6c,
+            0x2e, 0x32, 0xcf, 0xf7,
+        ];
+        let key: [u8; 20] = [0x0b; 20];
+        let mut hmac = HmacSha256::new_from_slice(&key).expect("key is valid length");
+        hmac.update(b"Hi");
+        hmac.update(b" There");
+        let result = hmac.finalize();
+        assert_eq!(&result, &expected_hmac);
+    }
+
+    #[test]
+    fn hmac_sha256_verify_test() {
+        let expected_hmac = [
+            0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53, 0x5c, 0xa8, 0xaf, 0xce, 0xaf, 0xb,
+            0xf1, 0x2b, 0x88, 0x1d, 0xc2, 0x0, 0xc9, 0x83, 0x3d, 0xa7, 0x26, 0xe9, 0x37, 0x6c,
+            0x2e, 0x32, 0xcf, 0xf7,
+        ];
+        let key: [u8; 20] = [0x0b; 20];
+        let data = b"Hi There";
+        let mut hmac: HmacSha256 = HmacSha256::new_from_slice(&key).expect("");
+        hmac.update(data);
+        assert!(hmac.verify(expected_hmac).is_ok())
+    }
+}
diff --git a/rust/bssl-crypto/src/lib.rs b/rust/bssl-crypto/src/lib.rs
new file mode 100644
index 0000000..166f999
--- /dev/null
+++ b/rust/bssl-crypto/src/lib.rs
@@ -0,0 +1,118 @@
+/* Copyright (c) 2023, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#![deny(
+    missing_docs,
+    clippy::indexing_slicing,
+    clippy::unwrap_used,
+    clippy::panic,
+    clippy::expect_used
+)]
+
+//! Rust boringssl binding
+
+extern crate core;
+use core::ops::Not;
+
+/// BoringSSL implemented hmac operations.
+pub mod hmac;
+
+/// BoringSSL implemented hash functions.
+pub mod digest;
+
+/// Used for handling result types from C APIs.
+trait PanicResultHandler {
+    /// Panics if a C api returns an invalid result
+    /// Used for APIs which return error codes for allocation failures.
+    fn panic_if_error(&self);
+}
+
+impl PanicResultHandler for i32 {
+    /// BoringSSL APIs return 1 on success or 0 on allocation failure.
+    #[allow(clippy::expect_used)]
+    fn panic_if_error(&self) {
+        self.gt(&0).then_some(()).expect("allocation failed!")
+    }
+}
+
+impl<T> PanicResultHandler for *mut T {
+    /// Boringssl APIs return NULL on allocation failure for APIs that return a CTX.
+    #[allow(clippy::expect_used)]
+    fn panic_if_error(&self) {
+        self.is_null()
+            .not()
+            .then_some(())
+            .expect("allocation failed!")
+    }
+}
+
+struct CSlice<'a>(&'a [u8]);
+
+impl CSlice<'_> {
+    pub fn as_ptr<T>(&self) -> *const T {
+        if self.0.is_empty() {
+            std::ptr::null()
+        } else {
+            self.0.as_ptr() as *const T
+        }
+    }
+}
+
+impl<'a> From<&'a [u8]> for CSlice<'a> {
+    fn from(value: &'a [u8]) -> Self {
+        Self(value)
+    }
+}
+
+/// A helper trait implemented by types which reference borrowed foreign types.
+///
+/// # Safety
+///
+/// Implementations of `ForeignTypeRef` must guarantee the following:
+///
+/// - `Self::from_ptr(x).as_ptr() == x`
+/// - `Self::from_mut_ptr(x).as_ptr() == x`
+unsafe trait ForeignTypeRef: Sized {
+    /// The raw C type.
+    type CType;
+
+    /// Constructs a shared instance of this type from its raw type.
+    ///
+    /// # Safety
+    ///
+    /// `ptr` must be a valid, immutable, instance of the type for the `'a` lifetime.
+    #[inline]
+    unsafe fn from_ptr<'a>(ptr: *mut Self::CType) -> &'a Self {
+        debug_assert!(!ptr.is_null());
+        &*(ptr as *mut _)
+    }
+
+    /// Constructs a mutable reference of this type from its raw type.
+    ///
+    /// # Safety
+    ///
+    /// `ptr` must be a valid, unique, instance of the type for the `'a` lifetime.
+    #[inline]
+    unsafe fn from_ptr_mut<'a>(ptr: *mut Self::CType) -> &'a mut Self {
+        debug_assert!(!ptr.is_null());
+        &mut *(ptr as *mut _)
+    }
+
+    /// Returns a raw pointer to the wrapped value.
+    #[inline]
+    fn as_ptr(&self) -> *mut Self::CType {
+        self as *const _ as *mut _
+    }
+}
diff --git a/rust/bssl-sys/CMakeLists.txt b/rust/bssl-sys/CMakeLists.txt
new file mode 100644
index 0000000..9b5c841
--- /dev/null
+++ b/rust/bssl-sys/CMakeLists.txt
@@ -0,0 +1,40 @@
+# Additional interop for things like macros and inlined functions.
+add_library(rust_wrapper STATIC rust_wrapper.c)
+target_link_libraries(rust_wrapper crypto)
+
+
+# Generate architecture-specific wrappers.
+set(WRAPPER_TARGET ${CMAKE_BINARY_DIR}/rust/bssl-sys/src/wrapper_${RUST_BINDINGS}.rs)
+set(COMMAND ${BINDGEN_EXECUTABLE} "wrapper.h"
+            -o ${WRAPPER_TARGET}
+            --no-derive-default
+            --enable-function-attribute-detection
+            --use-core
+            --size_t-is-usize
+            --default-macro-constant-type="signed"
+            --rustified-enum="point_conversion_form_t"
+            --allowlist-file=".*/include/openssl/.*\\.h"
+            --allowlist-file=".*/rust_wrapper\\.h"
+            -- # these are LLVM arg passthroughs
+            -I../../include
+            # https://doc.rust-lang.org/nightly/rustc/platform-support.html
+            --target=${RUST_BINDINGS})
+
+set(INCLUDES "include!(\"wrapper_${RUST_BINDINGS}.rs\");\n")
+
+add_custom_target(
+  bindgen_rust_${RUST_BINDINGS}
+  ALL
+  ${COMMAND}
+  BYPRODUCTS ${WRAPPER_TARGET}
+  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+# move files into build directory
+configure_file("src/lib.rs" "src/lib.rs")
+
+if(NOT BUILD_SHARED_LIBS)
+  configure_file("build.rs" "build.rs" COPYONLY)
+endif()
+
+configure_file("Cargo.toml" "Cargo.toml" COPYONLY)
\ No newline at end of file
diff --git a/rust/Cargo.toml b/rust/bssl-sys/Cargo.toml
similarity index 81%
rename from rust/Cargo.toml
rename to rust/bssl-sys/Cargo.toml
index 6a2bb40..c5e61fd 100644
--- a/rust/Cargo.toml
+++ b/rust/bssl-sys/Cargo.toml
@@ -3,6 +3,8 @@
 version = "0.1.0"
 authors = ["Benjamin Brittain <bwb@google.com>"]
 edition = "2018"
+publish = false
+license = "MIT"
 
 [dependencies]
 libc = "0.2"
diff --git a/rust/README.md b/rust/bssl-sys/README.md
similarity index 100%
rename from rust/README.md
rename to rust/bssl-sys/README.md
diff --git a/rust/build.rs b/rust/bssl-sys/build.rs
similarity index 77%
rename from rust/build.rs
rename to rust/bssl-sys/build.rs
index b029223..955eae3 100644
--- a/rust/build.rs
+++ b/rust/bssl-sys/build.rs
@@ -19,18 +19,21 @@
 fn main() {
     let dir = env::var("CARGO_MANIFEST_DIR").unwrap();
     let crate_path = Path::new(&dir);
-    let parent_path = crate_path.parent().unwrap();
+
+    // building bssl-sys with: `mkdir build && cd build && cmake -G Ninja .. -DRUST_BINDINGS="$(gcc -dumpmachine)" && ninja`
+    // outputs this crate to /build/rust/bssl-sys/ so need to go up 3 levels to the root of the repo
+    let repo_root = crate_path.parent().unwrap().parent().unwrap();
 
     // Statically link libraries.
     println!(
         "cargo:rustc-link-search=native={}",
-        parent_path.join("crypto").display()
+        repo_root.join("crypto").display()
     );
     println!("cargo:rustc-link-lib=static=crypto");
 
     println!(
         "cargo:rustc-link-search=native={}",
-        parent_path.join("ssl").display()
+        repo_root.join("ssl").display()
     );
     println!("cargo:rustc-link-lib=static=ssl");
 
diff --git a/rust/rust_wrapper.c b/rust/bssl-sys/rust_wrapper.c
similarity index 100%
rename from rust/rust_wrapper.c
rename to rust/bssl-sys/rust_wrapper.c
diff --git a/rust/rust_wrapper.h b/rust/bssl-sys/rust_wrapper.h
similarity index 100%
rename from rust/rust_wrapper.h
rename to rust/bssl-sys/rust_wrapper.h
diff --git a/rust/src/lib.rs b/rust/bssl-sys/src/lib.rs
similarity index 100%
rename from rust/src/lib.rs
rename to rust/bssl-sys/src/lib.rs
diff --git a/rust/bssl-sys/wrapper.h b/rust/bssl-sys/wrapper.h
new file mode 100644
index 0000000..101b455
--- /dev/null
+++ b/rust/bssl-sys/wrapper.h
@@ -0,0 +1,79 @@
+#include "../../include/openssl/aes.h"
+#include "../../include/openssl/asn1.h"
+#include "../../include/openssl/asn1_mac.h"
+#include "../../include/openssl/asn1t.h"
+#include "../../include/openssl/base.h"
+#include "../../include/openssl/base64.h"
+#include "../../include/openssl/bio.h"
+#include "../../include/openssl/blake2.h"
+#include "../../include/openssl/blowfish.h"
+#include "../../include/openssl/bn.h"
+#include "../../include/openssl/buf.h"
+#include "../../include/openssl/buffer.h"
+#include "../../include/openssl/bytestring.h"
+#include "../../include/openssl/cast.h"
+#include "../../include/openssl/chacha.h"
+#include "../../include/openssl/cipher.h"
+#include "../../include/openssl/cmac.h"
+#include "../../include/openssl/conf.h"
+#include "../../include/openssl/cpu.h"
+#include "../../include/openssl/crypto.h"
+#include "../../include/openssl/ctrdrbg.h"
+#include "../../include/openssl/curve25519.h"
+#include "../../include/openssl/des.h"
+#include "../../include/openssl/dh.h"
+#include "../../include/openssl/digest.h"
+#include "../../include/openssl/dsa.h"
+#include "../../include/openssl/dtls1.h"
+#include "../../include/openssl/e_os2.h"
+#include "../../include/openssl/ec.h"
+#include "../../include/openssl/ec_key.h"
+#include "../../include/openssl/ecdh.h"
+#include "../../include/openssl/ecdsa.h"
+#include "../../include/openssl/engine.h"
+#include "../../include/openssl/err.h"
+#include "../../include/openssl/evp.h"
+#include "../../include/openssl/evp_errors.h"
+#include "../../include/openssl/ex_data.h"
+#include "../../include/openssl/hkdf.h"
+#include "../../include/openssl/hmac.h"
+#include "../../include/openssl/hpke.h"
+#include "../../include/openssl/hrss.h"
+#include "../../include/openssl/is_boringssl.h"
+#include "../../include/openssl/kdf.h"
+#include "../../include/openssl/lhash.h"
+#include "../../include/openssl/md4.h"
+#include "../../include/openssl/md5.h"
+#include "../../include/openssl/mem.h"
+#include "../../include/openssl/obj.h"
+#include "../../include/openssl/obj_mac.h"
+#include "../../include/openssl/objects.h"
+#include "../../include/openssl/opensslconf.h"
+#include "../../include/openssl/opensslv.h"
+#include "../../include/openssl/ossl_typ.h"
+#include "../../include/openssl/pem.h"
+#include "../../include/openssl/pkcs12.h"
+#include "../../include/openssl/pkcs7.h"
+#include "../../include/openssl/pkcs8.h"
+#include "../../include/openssl/poly1305.h"
+#include "../../include/openssl/pool.h"
+#include "../../include/openssl/rand.h"
+#include "../../include/openssl/rc4.h"
+#include "../../include/openssl/ripemd.h"
+#include "../../include/openssl/rsa.h"
+#include "../../include/openssl/safestack.h"
+#include "../../include/openssl/sha.h"
+#include "../../include/openssl/siphash.h"
+#include "../../include/openssl/span.h"
+#include "../../include/openssl/srtp.h"
+#include "../../include/openssl/ssl.h"
+#include "../../include/openssl/ssl3.h"
+#include "../../include/openssl/stack.h"
+#include "../../include/openssl/thread.h"
+#include "../../include/openssl/tls1.h"
+#include "../../include/openssl/trust_token.h"
+#include "../../include/openssl/x509.h"
+#include "../../include/openssl/x509_vfy.h"
+#include "../../include/openssl/x509v3.h"
+
+#include "rust_wrapper.h"
diff --git a/rust/wrapper.h b/rust/wrapper.h
deleted file mode 100644
index 1d65c5a..0000000
--- a/rust/wrapper.h
+++ /dev/null
@@ -1,79 +0,0 @@
-#include "../include/openssl/aes.h"
-#include "../include/openssl/asn1.h"
-#include "../include/openssl/asn1_mac.h"
-#include "../include/openssl/asn1t.h"
-#include "../include/openssl/base.h"
-#include "../include/openssl/base64.h"
-#include "../include/openssl/bio.h"
-#include "../include/openssl/blake2.h"
-#include "../include/openssl/blowfish.h"
-#include "../include/openssl/bn.h"
-#include "../include/openssl/buf.h"
-#include "../include/openssl/buffer.h"
-#include "../include/openssl/bytestring.h"
-#include "../include/openssl/cast.h"
-#include "../include/openssl/chacha.h"
-#include "../include/openssl/cipher.h"
-#include "../include/openssl/cmac.h"
-#include "../include/openssl/conf.h"
-#include "../include/openssl/cpu.h"
-#include "../include/openssl/crypto.h"
-#include "../include/openssl/ctrdrbg.h"
-#include "../include/openssl/curve25519.h"
-#include "../include/openssl/des.h"
-#include "../include/openssl/dh.h"
-#include "../include/openssl/digest.h"
-#include "../include/openssl/dsa.h"
-#include "../include/openssl/dtls1.h"
-#include "../include/openssl/e_os2.h"
-#include "../include/openssl/ec.h"
-#include "../include/openssl/ec_key.h"
-#include "../include/openssl/ecdh.h"
-#include "../include/openssl/ecdsa.h"
-#include "../include/openssl/engine.h"
-#include "../include/openssl/err.h"
-#include "../include/openssl/evp.h"
-#include "../include/openssl/evp_errors.h"
-#include "../include/openssl/ex_data.h"
-#include "../include/openssl/hkdf.h"
-#include "../include/openssl/hmac.h"
-#include "../include/openssl/hpke.h"
-#include "../include/openssl/hrss.h"
-#include "../include/openssl/is_boringssl.h"
-#include "../include/openssl/kdf.h"
-#include "../include/openssl/lhash.h"
-#include "../include/openssl/md4.h"
-#include "../include/openssl/md5.h"
-#include "../include/openssl/mem.h"
-#include "../include/openssl/obj.h"
-#include "../include/openssl/obj_mac.h"
-#include "../include/openssl/objects.h"
-#include "../include/openssl/opensslconf.h"
-#include "../include/openssl/opensslv.h"
-#include "../include/openssl/ossl_typ.h"
-#include "../include/openssl/pem.h"
-#include "../include/openssl/pkcs12.h"
-#include "../include/openssl/pkcs7.h"
-#include "../include/openssl/pkcs8.h"
-#include "../include/openssl/poly1305.h"
-#include "../include/openssl/pool.h"
-#include "../include/openssl/rand.h"
-#include "../include/openssl/rc4.h"
-#include "../include/openssl/ripemd.h"
-#include "../include/openssl/rsa.h"
-#include "../include/openssl/safestack.h"
-#include "../include/openssl/sha.h"
-#include "../include/openssl/siphash.h"
-#include "../include/openssl/span.h"
-#include "../include/openssl/srtp.h"
-#include "../include/openssl/ssl.h"
-#include "../include/openssl/ssl3.h"
-#include "../include/openssl/stack.h"
-#include "../include/openssl/thread.h"
-#include "../include/openssl/tls1.h"
-#include "../include/openssl/trust_token.h"
-#include "../include/openssl/x509.h"
-#include "../include/openssl/x509_vfy.h"
-#include "../include/openssl/x509v3.h"
-
-#include "rust_wrapper.h"