Adding NULL cryptlib implementation to SPDM-RS

Signed-off-by: Timothy Prinz <[email protected]>

spdmlib/src/crypto/crypto_null/aead_impl.rs

@@ -0,0 +1,37 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+use crate::crypto::SpdmAead;
+use crate::error::{SpdmResult};
+
+use crate::protocol::{SpdmAeadAlgo, SpdmAeadIvStruct, SpdmAeadKeyStruct};
+
+pub static DEFAULT: SpdmAead = SpdmAead {
+    encrypt_cb: encrypt,
+    decrypt_cb: decrypt,
+};
+
+fn encrypt(
+    aead_algo: SpdmAeadAlgo,
+    key: &SpdmAeadKeyStruct,
+    iv: &SpdmAeadIvStruct,
+    aad: &[u8],
+    plain_text: &[u8],
+    tag: &mut [u8],
+    cipher_text: &mut [u8],
+) -> SpdmResult<(usize, usize)> {
+    unimplemented!()
+}
+
+fn decrypt(
+    aead_algo: SpdmAeadAlgo,
+    key: &SpdmAeadKeyStruct,
+    iv: &SpdmAeadIvStruct,
+    aad: &[u8],
+    cipher_text: &[u8],
+    tag: &[u8],
+    plain_text: &mut [u8],
+) -> SpdmResult<usize> {
+    unimplemented!()
+}

spdmlib/src/crypto/crypto_null/asym_verify_impl.rs

@@ -0,0 +1,21 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+use crate::crypto::{SpdmAsymVerify};
+use crate::error::{SpdmResult};
+use crate::protocol::{SpdmBaseAsymAlgo, SpdmBaseHashAlgo, SpdmSignatureStruct};
+
+pub static DEFAULT: SpdmAsymVerify = SpdmAsymVerify {
+    verify_cb: asym_verify,
+};
+
+fn asym_verify(
+    base_hash_algo: SpdmBaseHashAlgo,
+    base_asym_algo: SpdmBaseAsymAlgo,
+    public_cert_der: &[u8],
+    data: &[u8],
+    signature: &SpdmSignatureStruct,
+) -> SpdmResult {
+    unimplemented!()
+}

spdmlib/src/crypto/crypto_null/cert_operation_impl.rs

@@ -0,0 +1,19 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+use crate::crypto::SpdmCertOperation;
+use crate::error::{SpdmResult};
+
+pub static DEFAULT: SpdmCertOperation = SpdmCertOperation {
+    get_cert_from_cert_chain_cb: get_cert_from_cert_chain,
+    verify_cert_chain_cb: verify_cert_chain,
+};
+
+fn get_cert_from_cert_chain(cert_chain: &[u8], index: isize) -> SpdmResult<(usize, usize)> {
+    unimplemented!()
+}
+
+fn verify_cert_chain(cert_chain: &[u8]) -> SpdmResult {
+    unimplemented!()
+}

spdmlib/src/crypto/crypto_null/dhe_impl.rs

@@ -0,0 +1,19 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+extern crate alloc;
+use alloc::boxed::Box;
+
+use crate::crypto::{SpdmDhe, SpdmDheKeyExchange};
+use crate::protocol::{SpdmDheAlgo, SpdmDheExchangeStruct};
+
+pub static DEFAULT: SpdmDhe = SpdmDhe {
+    generate_key_pair_cb: generate_key_pair,
+};
+
+fn generate_key_pair(
+    dhe_algo: SpdmDheAlgo,
+) -> Option<(SpdmDheExchangeStruct, Box<dyn SpdmDheKeyExchange + Send>)> {
+    unimplemented!()
+}

spdmlib/src/crypto/crypto_null/hash_impl.rs

@@ -0,0 +1,48 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+use crate::crypto::SpdmHash;
+use crate::protocol::{SpdmBaseHashAlgo, SpdmDigestStruct};
+
+#[cfg(not(feature = "hashed-transcript-data"))]
+pub static DEFAULT: SpdmHash = SpdmHash {
+    hash_all_cb: hash_all,
+};
+#[cfg(feature = "hashed-transcript-data")]
+pub static DEFAULT: SpdmHash = SpdmHash {
+    hash_all_cb: hash_all,
+    hash_ctx_init_cb: hash_ext::hash_ctx_init,
+    hash_ctx_update_cb: hash_ext::hash_ctx_update,
+    hash_ctx_finalize_cb: hash_ext::hash_ctx_finalize,
+    hash_ctx_dup_cb: hash_ext::hash_ctx_dup,
+};
+
+fn hash_all(base_hash_algo: SpdmBaseHashAlgo, data: &[u8]) -> Option<SpdmDigestStruct> {
+    unimplemented!()
+}
+
+#[cfg(feature = "hashed-transcript-data")]
+mod hash_ext {
+    use crate::error::{SpdmResult, SPDM_STATUS_CRYPTO_ERROR};
+
+    pub fn hash_ctx_update(handle: usize, data: &[u8]) -> SpdmResult {
+        unimplemented!()
+    }
+
+    pub fn hash_ctx_finalize(handle: usize) -> Option<SpdmDigestStruct> {
+        unimplemented!()
+    }
+
+    pub fn hash_ctx_dup(handle: usize) -> Option<usize> {
+        unimplemented!()
+    }
+
+    pub fn hash_ctx_init(base_hash_algo: SpdmBaseHashAlgo) -> Option<usize> {
+        unimplemented!()
+    }
+
+    fn insert_to_table(value: Box<HashCtxConcrete>) -> usize {
+        unimplemented!()
+    }
+}

spdmlib/src/crypto/crypto_null/hkdf_impl.rs

@@ -0,0 +1,31 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+use crate::crypto::SpdmHkdf;
+use crate::protocol::{
+    SpdmBaseHashAlgo, SpdmHkdfInputKeyingMaterial, SpdmHkdfOutputKeyingMaterial,
+    SpdmHkdfPseudoRandomKey
+};
+
+pub static DEFAULT: SpdmHkdf = SpdmHkdf {
+    hkdf_extract_cb: hkdf_extract,
+    hkdf_expand_cb: hkdf_expand,
+};
+
+fn hkdf_extract(
+    hash_algo: SpdmBaseHashAlgo,
+    salt: &[u8],
+    ikm: &SpdmHkdfInputKeyingMaterial,
+) -> Option<SpdmHkdfPseudoRandomKey> {
+    unimplemented!()
+}
+
+fn hkdf_expand(
+    hash_algo: SpdmBaseHashAlgo,
+    prk: &SpdmHkdfPseudoRandomKey,
+    info: &[u8],
+    out_size: u16,
+) -> Option<SpdmHkdfOutputKeyingMaterial> {
+    unimplemented!()
+}

spdmlib/src/crypto/crypto_null/hmac_impl.rs

@@ -0,0 +1,25 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+use crate::crypto::SpdmHmac;
+use crate::error::{SpdmResult};
+use crate::protocol::{SpdmBaseHashAlgo, SpdmDigestStruct};
+
+pub static DEFAULT: SpdmHmac = SpdmHmac {
+    hmac_cb: hmac,
+    hmac_verify_cb: hmac_verify,
+};
+
+fn hmac(base_hash_algo: SpdmBaseHashAlgo, key: &[u8], data: &[u8]) -> Option<SpdmDigestStruct> {
+    unimplemented!()
+}
+
+fn hmac_verify(
+    base_hash_algo: SpdmBaseHashAlgo,
+    key: &[u8],
+    data: &[u8],
+    hmac: &SpdmDigestStruct,
+) -> SpdmResult {
+    unimplemented!()
+}

spdmlib/src/crypto/crypto_null/mod.rs

@@ -0,0 +1,15 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+// Since crypto implementations are null, all variables will be unused.
+#![allow(unused_variables)]
+
+pub mod aead_impl;
+pub mod asym_verify_impl;
+pub mod cert_operation_impl;
+pub mod dhe_impl;
+pub mod hash_impl;
+pub mod hkdf_impl;
+pub mod hmac_impl;
+pub mod rand_impl;

spdmlib/src/crypto/crypto_null/rand_impl.rs

@@ -0,0 +1,14 @@
+// Copyright (c) 2021 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 or MIT
+
+use crate::crypto::SpdmCryptoRandom;
+use crate::error::{SpdmResult};
+
+pub static DEFAULT: SpdmCryptoRandom = SpdmCryptoRandom {
+    get_random_cb: get_random,
+};
+
+fn get_random(data: &mut [u8]) -> SpdmResult<usize> {
+    unimplemented!()
+}