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Source release v3.2.0

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This commit is contained in:
Gene Morgan
2017-02-01 16:36:41 -08:00
parent 643b91b616
commit 2fde891c01
370 changed files with 40622 additions and 276133 deletions
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494
oemcrypto/test/oec_session_util.cpp
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@@ -9,7 +9,10 @@
#include <openssl/aes.h>
#include <openssl/err.h>
#include <openssl/hmac.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/x509_vfy.h>
#include <stdint.h>
#include <gtest/gtest.h>
@@ -17,13 +20,14 @@
#include <string>
#include <vector>
#include "OEMCryptoCENC.h"
#include "log.h"
#include "oec_device_features.h"
#include "oec_test_data.h"
#include "oemcrypto_key_mock.h"
#include "OEMCryptoCENC.h"
#include "string_conversions.h"
#include "wv_cdm_constants.h"
#include "wv_cdm_types.h"
#include "wv_keybox.h"
using namespace std;
@@ -68,6 +72,23 @@ void dump_openssl_error() {
}
}
template <typename T, void (*func)(T*)>
class openssl_ptr {
public:
explicit openssl_ptr(T* p = NULL) : ptr_(p) {}
~openssl_ptr() {
if (ptr_) func(ptr_);
}
T& operator*() const { return *ptr_; }
T* operator->() const { return ptr_; }
T* get() const { return ptr_; }
bool NotNull() { return ptr_; }
private:
T* ptr_;
CORE_DISALLOW_COPY_AND_ASSIGN(openssl_ptr);
};
Session::Session()
: open_(false),
forced_session_id_(false),
@@ -75,7 +96,15 @@ Session::Session()
mac_key_server_(wvcdm::MAC_KEY_SIZE),
mac_key_client_(wvcdm::MAC_KEY_SIZE),
enc_key_(wvcdm::KEY_SIZE),
public_rsa_(0) {}
public_rsa_(0),
message_size_(sizeof(MessageData)),
num_keys_(4) { // Most tests only use 4 keys.
// Other tests will explicitly call set_num_keys.
// Stripe the padded message.
for (int i = 0; i < sizeof(padded_message_.padding); i++) {
padded_message_.padding[i] = i % 0x100;
}
}
Session::~Session() {
if (!forced_session_id_ && open_) close();
@@ -104,8 +133,8 @@ void Session::close() {
open_ = false;
}
void Session::GenerateNonce(uint32_t* nonce, int* error_counter) {
if (OEMCrypto_SUCCESS == OEMCrypto_GenerateNonce(session_id(), nonce)) {
void Session::GenerateNonce(int* error_counter) {
if (OEMCrypto_SUCCESS == OEMCrypto_GenerateNonce(session_id(), &nonce_)) {
return;
}
if (error_counter) {
@@ -113,7 +142,7 @@ void Session::GenerateNonce(uint32_t* nonce, int* error_counter) {
} else {
sleep(1); // wait a second, then try again.
ASSERT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GenerateNonce(session_id(), nonce));
OEMCrypto_GenerateNonce(session_id(), &nonce_));
}
}
@@ -139,7 +168,7 @@ void Session::FillDefaultContext(vector<uint8_t>* mac_context,
}
void Session::GenerateDerivedKeysFromKeybox() {
GenerateNonce(&nonce_);
GenerateNonce();
vector<uint8_t> mac_context;
vector<uint8_t> enc_context;
FillDefaultContext(&mac_context, &enc_context);
@@ -159,10 +188,11 @@ void Session::GenerateDerivedKeysFromKeybox() {
void Session::GenerateDerivedKeysFromSessionKey() {
// Uses test certificate.
GenerateNonce(&nonce_);
GenerateNonce();
vector<uint8_t> session_key;
vector<uint8_t> enc_session_key;
PreparePublicKey();
ASSERT_TRUE(GenerateRSASessionKey(&enc_session_key));
ASSERT_TRUE(GenerateRSASessionKey(&session_key, &enc_session_key));
vector<uint8_t> mac_context;
vector<uint8_t> enc_context;
FillDefaultContext(&mac_context, &enc_context);
@@ -181,71 +211,64 @@ void Session::GenerateDerivedKeysFromSessionKey() {
enc_key_ = wvcdm::a2b_hex("CB477D09014D72C9B8DCE76C33EA43B3");
}
void Session::GenerateTestSessionKeys() {
if (global_features.derive_key_method == DeviceFeatures::LOAD_TEST_RSA_KEY) {
GenerateDerivedKeysFromSessionKey();
} else {
GenerateDerivedKeysFromKeybox();
}
}
void Session::LoadTestKeys(const std::string& pst, bool new_mac_keys) {
uint8_t* pst_ptr = NULL;
if (pst.length() > 0) {
pst_ptr = encrypted_license_.pst;
pst_ptr = encrypted_license().pst;
}
if (new_mac_keys) {
ASSERT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_LoadKeys(
session_id(), message_ptr(), sizeof(MessageData),
&signature_[0], signature_.size(),
encrypted_license_.mac_key_iv, encrypted_license_.mac_keys,
kNumKeys, key_array_, pst_ptr, pst.length()));
OEMCrypto_LoadKeys(session_id(), message_ptr(), message_size_,
&signature_[0], signature_.size(),
encrypted_license().mac_key_iv,
encrypted_license().mac_keys, num_keys_,
key_array_, pst_ptr, pst.length()));
// Update new generated keys.
memcpy(&mac_key_server_[0], license_.mac_keys, wvcdm::MAC_KEY_SIZE);
memcpy(&mac_key_client_[0], license_.mac_keys + wvcdm::MAC_KEY_SIZE,
wvcdm::MAC_KEY_SIZE);
} else {
ASSERT_EQ(
OEMCrypto_SUCCESS,
OEMCrypto_LoadKeys(session_id(), message_ptr(), sizeof(MessageData),
&signature_[0], signature_.size(), NULL, NULL,
kNumKeys, key_array_, pst_ptr, pst.length()));
ASSERT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_LoadKeys(session_id(), message_ptr(), message_size_,
&signature_[0], signature_.size(), NULL, NULL,
num_keys_, key_array_, pst_ptr, pst.length()));
}
VerifyTestKeys();
}
void Session::VerifyTestKeys() {
for (unsigned int i = 0; i < kNumKeys; i++) {
for (unsigned int i = 0; i < num_keys_; i++) {
KeyControlBlock block;
size_t size = sizeof(block);
OEMCryptoResult sts = OEMCrypto_QueryKeyControl(
session_id(), license_.keys[i].key_id, license_.keys[i].key_id_length,
reinterpret_cast<uint8_t*>(&block), &size);
session_id(), license_.keys[i].key_id, license_.keys[i].key_id_length,
reinterpret_cast<uint8_t*>(&block), &size);
if (sts != OEMCrypto_ERROR_NOT_IMPLEMENTED) {
ASSERT_EQ(OEMCrypto_SUCCESS, sts);
ASSERT_EQ(sizeof(block), size);
// control duration and bits stored in network byte order. For printing
// we change to host byte order.
ASSERT_EQ((htonl_fnc(license_.keys[i].control.duration)),
(htonl_fnc(block.duration))) << "For key " << i;
(htonl_fnc(block.duration)))
<< "For key " << i;
ASSERT_EQ(htonl_fnc(license_.keys[i].control.control_bits),
htonl_fnc(block.control_bits)) << "For key " << i;
htonl_fnc(block.control_bits))
<< "For key " << i;
}
}
}
void Session::RefreshTestKeys(const size_t key_count,
uint32_t control_bits, uint32_t nonce,
OEMCryptoResult expected_result) {
void Session::RefreshTestKeys(const size_t key_count, uint32_t control_bits,
uint32_t nonce, OEMCryptoResult expected_result) {
// Note: we store the message in encrypted_license_, but the refresh key
// message is not actually encrypted. It is, however, signed.
FillRefreshMessage(key_count, control_bits, nonce);
ServerSignMessage(encrypted_license_, &signature_);
ServerSignBuffer(reinterpret_cast<const uint8_t*>(&padded_message_),
message_size_, &signature_);
OEMCrypto_KeyRefreshObject key_array[key_count];
FillRefreshArray(key_array, key_count);
OEMCryptoResult sts = OEMCrypto_RefreshKeys(
session_id(), message_ptr(), sizeof(MessageData), &signature_[0],
session_id(), message_ptr(), message_size_, &signature_[0],
signature_.size(), key_count, key_array);
ASSERT_EQ(expected_result, sts);
@@ -268,29 +291,28 @@ void Session::SetKeyId(int index, const string& key_id) {
memcpy(key.key_id, key_id.data(), key.key_id_length);
}
void Session::FillSimpleMessage(
uint32_t duration, uint32_t control, uint32_t nonce,
const std::string& pst) {
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(license_.mac_key_iv,
sizeof(license_.mac_key_iv)));
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(license_.mac_keys, sizeof(license_.mac_keys)));
for (unsigned int i = 0; i < kNumKeys; i++) {
void Session::FillSimpleMessage(uint32_t duration, uint32_t control,
uint32_t nonce, const std::string& pst) {
EXPECT_EQ(
1, RAND_pseudo_bytes(license_.mac_key_iv, sizeof(license_.mac_key_iv)));
EXPECT_EQ(1, RAND_pseudo_bytes(license_.mac_keys, sizeof(license_.mac_keys)));
for (unsigned int i = 0; i < num_keys_; i++) {
memset(license_.keys[i].key_id, 0, kTestKeyIdMaxLength);
license_.keys[i].key_id_length = kDefaultKeyIdLength;
memset(license_.keys[i].key_id, i, license_.keys[i].key_id_length);
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(license_.keys[i].key_data,
sizeof(license_.keys[i].key_data)));
EXPECT_EQ(1, RAND_pseudo_bytes(license_.keys[i].key_data,
sizeof(license_.keys[i].key_data)));
license_.keys[i].key_data_length = wvcdm::KEY_SIZE;
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(license_.keys[i].key_iv,
sizeof(license_.keys[i].key_iv)));
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(license_.keys[i].control_iv,
sizeof(license_.keys[i].control_iv)));
if (control & wvoec_mock::kControlSecurityPatchLevelMask) {
EXPECT_EQ(1, RAND_pseudo_bytes(license_.keys[i].key_iv,
sizeof(license_.keys[i].key_iv)));
EXPECT_EQ(1, RAND_pseudo_bytes(license_.keys[i].control_iv,
sizeof(license_.keys[i].control_iv)));
// For version 12, we require OEMCrypto to handle kc12 for all licenses.
if (global_features.api_version == 12) {
memcpy(license_.keys[i].control.verification, "kc12", 4);
} else if (control & wvoec_mock::kControlSecurityPatchLevelMask) {
// For versions before 12, we require the special key control block only
// when there are newer features present.
memcpy(license_.keys[i].control.verification, "kc11", 4);
} else if (control & wvoec_mock::kControlRequireAntiRollbackHardware) {
memcpy(license_.keys[i].control.verification, "kc10", 4);
@@ -311,48 +333,57 @@ void Session::FillSimpleMessage(
void Session::FillRefreshMessage(size_t key_count, uint32_t control_bits,
uint32_t nonce) {
for (unsigned int i = 0; i < key_count; i++) {
encrypted_license_.keys[i].key_id_length = license_.keys[i].key_id_length;
memcpy(encrypted_license_.keys[i].key_id, license_.keys[i].key_id,
encrypted_license_.keys[i].key_id_length);
memcpy(encrypted_license_.keys[i].control.verification, "kctl", 4);
encrypted_license_.keys[i].control.duration = htonl(kLongDuration);
encrypted_license_.keys[i].control.nonce = htonl(nonce);
encrypted_license_.keys[i].control.control_bits = htonl(control_bits);
encrypted_license().keys[i].key_id_length = license_.keys[i].key_id_length;
memcpy(encrypted_license().keys[i].key_id, license_.keys[i].key_id,
encrypted_license().keys[i].key_id_length);
if (global_features.api_version == 12) {
// For version 12, we require OEMCrypto to handle kc12 for all licenses.
memcpy(encrypted_license().keys[i].control.verification, "kc12", 4);
} else {
// For versions before 12, we require the special key control block only
// when there are newer features present.
memcpy(encrypted_license().keys[i].control.verification, "kctl", 4);
}
encrypted_license().keys[i].control.duration = htonl(kLongDuration);
encrypted_license().keys[i].control.nonce = htonl(nonce);
encrypted_license().keys[i].control.control_bits = htonl(control_bits);
}
}
void Session::EncryptAndSign() {
encrypted_license_ = license_;
encrypted_license() = license_;
uint8_t iv_buffer[16];
memcpy(iv_buffer, &license_.mac_key_iv[0], wvcdm::KEY_IV_SIZE);
AES_KEY aes_key;
AES_set_encrypt_key(&enc_key_[0], 128, &aes_key);
AES_cbc_encrypt(&license_.mac_keys[0], &encrypted_license_.mac_keys[0],
AES_cbc_encrypt(&license_.mac_keys[0], &encrypted_license().mac_keys[0],
2 * wvcdm::MAC_KEY_SIZE, &aes_key, iv_buffer, AES_ENCRYPT);
for (unsigned int i = 0; i < kNumKeys; i++) {
for (unsigned int i = 0; i < num_keys_; i++) {
memcpy(iv_buffer, &license_.keys[i].control_iv[0], wvcdm::KEY_IV_SIZE);
AES_set_encrypt_key(&license_.keys[i].key_data[0], 128, &aes_key);
AES_cbc_encrypt(
reinterpret_cast<const uint8_t*>(&license_.keys[i].control),
reinterpret_cast<uint8_t*>(&encrypted_license_.keys[i].control),
reinterpret_cast<uint8_t*>(&encrypted_license().keys[i].control),
wvcdm::KEY_SIZE, &aes_key, iv_buffer, AES_ENCRYPT);
memcpy(iv_buffer, &license_.keys[i].key_iv[0], wvcdm::KEY_IV_SIZE);
AES_set_encrypt_key(&enc_key_[0], 128, &aes_key);
AES_cbc_encrypt(&license_.keys[i].key_data[0],
&encrypted_license_.keys[i].key_data[0],
license_.keys[i].key_data_length, &aes_key, iv_buffer,
AES_ENCRYPT);
AES_cbc_encrypt(
&license_.keys[i].key_data[0], &encrypted_license().keys[i].key_data[0],
license_.keys[i].key_data_length, &aes_key, iv_buffer, AES_ENCRYPT);
}
memcpy(encrypted_license_.pst, license_.pst, sizeof(license_.pst));
ServerSignMessage(encrypted_license_, &signature_);
FillKeyArray(encrypted_license_, key_array_);
memcpy(encrypted_license().pst, license_.pst, sizeof(license_.pst));
ServerSignBuffer(reinterpret_cast<const uint8_t*>(&padded_message_),
message_size_, &signature_);
FillKeyArray(encrypted_license(), key_array_);
}
void Session::EncryptMessage(RSAPrivateKeyMessage* data,
RSAPrivateKeyMessage* encrypted) {
void Session::EncryptProvisioningMessage(
RSAPrivateKeyMessage* data, RSAPrivateKeyMessage* encrypted,
const vector<uint8_t>& encryption_key) {
ASSERT_EQ(encryption_key.size(), wvcdm::KEY_SIZE);
*encrypted = *data;
size_t padding = wvcdm::KEY_SIZE - (data->rsa_key_length % wvcdm::KEY_SIZE);
memset(data->rsa_key + data->rsa_key_length, static_cast<uint8_t>(padding),
@@ -361,20 +392,18 @@ void Session::EncryptMessage(RSAPrivateKeyMessage* data,
uint8_t iv_buffer[16];
memcpy(iv_buffer, &data->rsa_key_iv[0], wvcdm::KEY_IV_SIZE);
AES_KEY aes_key;
AES_set_encrypt_key(&enc_key_[0], 128, &aes_key);
AES_set_encrypt_key(&encryption_key[0], 128, &aes_key);
AES_cbc_encrypt(&data->rsa_key[0], &encrypted->rsa_key[0],
encrypted->rsa_key_length, &aes_key, iv_buffer,
AES_ENCRYPT);
encrypted->rsa_key_length, &aes_key, iv_buffer, AES_ENCRYPT);
}
template <typename T>
void Session::ServerSignMessage(const T& data,
std::vector<uint8_t>* signature) {
void Session::ServerSignBuffer(const uint8_t* data, size_t data_length,
std::vector<uint8_t>* signature) {
ASSERT_LE(data_length, kMaxMessageSize);
signature->assign(SHA256_DIGEST_LENGTH, 0);
unsigned int md_len = SHA256_DIGEST_LENGTH;
HMAC(EVP_sha256(), &mac_key_server_[0], mac_key_server_.size(),
reinterpret_cast<const uint8_t*>(&data), sizeof(data),
&(signature->front()), &md_len);
HMAC(EVP_sha256(), &mac_key_server_[0], mac_key_server_.size(), data,
data_length, &(signature->front()), &md_len);
}
void Session::ClientSignMessage(const vector<uint8_t>& data,
@@ -385,9 +414,29 @@ void Session::ClientSignMessage(const vector<uint8_t>& data,
&(data.front()), data.size(), &(signature->front()), &md_len);
}
void Session::VerifyClientSignature(size_t data_length) {
// In the real world, a message should be signed by the client and
// verified by the server. This simulates that.
vector<uint8_t> data(data_length);
for (int i = 0; i < data.size(); i++) data[i] = i % 0xFF;
OEMCryptoResult sts;
size_t gen_signature_length = 0;
sts = OEMCrypto_GenerateSignature(session_id(), &data[0], data.size(), NULL,
&gen_signature_length);
ASSERT_EQ(OEMCrypto_ERROR_SHORT_BUFFER, sts);
ASSERT_EQ(static_cast<size_t>(32), gen_signature_length);
vector<uint8_t> gen_signature(gen_signature_length);
sts = OEMCrypto_GenerateSignature(session_id(), &data[0], data.size(),
&gen_signature[0], &gen_signature_length);
ASSERT_EQ(OEMCrypto_SUCCESS, sts);
std::vector<uint8_t> expected_signature;
ClientSignMessage(data, &expected_signature);
ASSERT_EQ(expected_signature, gen_signature);
}
void Session::FillKeyArray(const MessageData& data,
OEMCrypto_KeyObject* key_array) {
for (unsigned int i = 0; i < kNumKeys; i++) {
for (unsigned int i = 0; i < num_keys_; i++) {
key_array[i].key_id = data.keys[i].key_id;
key_array[i].key_id_length = data.keys[i].key_id_length;
key_array[i].key_data_iv = data.keys[i].key_iv;
@@ -404,21 +453,21 @@ void Session::FillRefreshArray(OEMCrypto_KeyRefreshObject* key_array,
size_t key_count) {
for (size_t i = 0; i < key_count; i++) {
if (key_count > 1) {
key_array[i].key_id = encrypted_license_.keys[i].key_id;
key_array[i].key_id_length = encrypted_license_.keys[i].key_id_length;
key_array[i].key_id = encrypted_license().keys[i].key_id;
key_array[i].key_id_length = encrypted_license().keys[i].key_id_length;
} else {
key_array[i].key_id = NULL;
key_array[i].key_id_length = 0;
}
key_array[i].key_control_iv = NULL;
key_array[i].key_control =
reinterpret_cast<const uint8_t*>(&encrypted_license_.keys[i].control);
reinterpret_cast<const uint8_t*>(&encrypted_license().keys[i].control);
}
}
void Session::EncryptCTR(
const vector<uint8_t>& in_buffer, const uint8_t *key,
const uint8_t* starting_iv, vector<uint8_t>* out_buffer) {
void Session::EncryptCTR(const vector<uint8_t>& in_buffer, const uint8_t* key,
const uint8_t* starting_iv,
vector<uint8_t>* out_buffer) {
ASSERT_NE(static_cast<void*>(NULL), key);
ASSERT_NE(static_cast<void*>(NULL), starting_iv);
ASSERT_NE(static_cast<void*>(NULL), out_buffer);
@@ -441,25 +490,24 @@ void Session::EncryptCTR(
}
void Session::TestDecryptCTR(bool select_key_first,
OEMCryptoResult expected_result) {
OEMCryptoResult expected_result, int key_index) {
OEMCryptoResult sts;
if (select_key_first) {
// Select the key (from FillSimpleMessage)
sts = OEMCrypto_SelectKey(session_id(), license_.keys[0].key_id,
license_.keys[0].key_id_length);
sts = OEMCrypto_SelectKey(session_id(), license_.keys[key_index].key_id,
license_.keys[key_index].key_id_length);
ASSERT_EQ(OEMCrypto_SUCCESS, sts);
}
vector<uint8_t> unencryptedData(256);
for(size_t i=0; i < unencryptedData.size(); i++) unencryptedData[i] = i % 256;
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(&unencryptedData[0], unencryptedData.size()));
for (size_t i = 0; i < unencryptedData.size(); i++)
unencryptedData[i] = i % 256;
EXPECT_EQ(1, RAND_pseudo_bytes(&unencryptedData[0], unencryptedData.size()));
vector<uint8_t> encryptionIv(wvcdm::KEY_IV_SIZE);
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(&encryptionIv[0], wvcdm::KEY_IV_SIZE));
EXPECT_EQ(1, RAND_pseudo_bytes(&encryptionIv[0], wvcdm::KEY_IV_SIZE));
vector<uint8_t> encryptedData(unencryptedData.size());
EncryptCTR(unencryptedData, license_.keys[0].key_data, &encryptionIv[0],
&encryptedData);
EncryptCTR(unencryptedData, license_.keys[key_index].key_data,
&encryptionIv[0], &encryptedData);
// Describe the output
vector<uint8_t> outputBuffer(256);
@@ -495,38 +543,61 @@ void Session::TestDecryptCTR(bool select_key_first,
}
}
void Session::MakeRSACertificate(
struct RSAPrivateKeyMessage* encrypted, std::vector<uint8_t>* signature,
uint32_t allowed_schemes, const vector<uint8_t>& rsa_key) {
// Dummy context for testing signature generation.
vector<uint8_t> context = wvcdm::a2b_hex(
"0a4c08001248000000020000101907d9ffde13aa95c122678053362136bdf840"
"8f8276e4c2d87ec52b61aa1b9f646e58734930acebe899b3e464189a14a87202"
"fb02574e70640bd22ef44b2d7e3912250a230a14080112100915007caa9b5931"
"b76a3a85f046523e10011a09393837363534333231180120002a0c3138383637"
"38373430350000");
OEMCryptoResult sts;
// Generate signature
size_t gen_signature_length = 0;
sts = OEMCrypto_GenerateSignature(session_id(), &context[0], context.size(),
NULL, &gen_signature_length);
ASSERT_EQ(OEMCrypto_ERROR_SHORT_BUFFER, sts);
ASSERT_EQ(static_cast<size_t>(32), gen_signature_length);
vector<uint8_t> gen_signature(gen_signature_length);
sts = OEMCrypto_GenerateSignature(session_id(), &context[0], context.size(),
&gen_signature[0], &gen_signature_length);
ASSERT_EQ(OEMCrypto_SUCCESS, sts);
std::vector<uint8_t> expected_signature;
ClientSignMessage(context, &expected_signature);
ASSERT_EQ(expected_signature, gen_signature);
// Rewrap Canned Response
// In the real world, the signature above would just have been used to
// contact the certificate provisioning server to get this response.
void Session::LoadOEMCert(bool verify_cert) {
vector<uint8_t> public_cert;
size_t public_cert_length = 0;
ASSERT_EQ(OEMCrypto_ERROR_SHORT_BUFFER,
OEMCrypto_GetOEMPublicCertificate(session_id(), NULL,
&public_cert_length));
ASSERT_GT(public_cert_length, 0);
public_cert.resize(public_cert_length);
ASSERT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetOEMPublicCertificate(session_id(), &public_cert[0],
&public_cert_length));
// load the cert into rsa_key_.
openssl_ptr<BIO, BIO_vfree> bio(
BIO_new_mem_buf(&public_cert[0], public_cert_length));
ASSERT_TRUE(bio.NotNull());
openssl_ptr<X509, X509_free> cert(
PEM_read_bio_X509(bio.get(), NULL, 0, NULL));
ASSERT_TRUE(cert.NotNull());
openssl_ptr<EVP_PKEY, EVP_PKEY_free> pubkey(X509_get_pubkey(cert.get()));
ASSERT_TRUE(pubkey.NotNull());
public_rsa_ = EVP_PKEY_get1_RSA(pubkey.get());
if (!public_rsa_) {
cout << "d2i_RSAPrivateKey failed.\n";
dump_openssl_error();
ASSERT_TRUE(NULL != public_rsa_);
}
if (verify_cert) {
vector<char> buffer(80);
X509_NAME* name = X509_get_subject_name(cert.get());
printf(" OEM Certificate Name: %s\n",
X509_NAME_oneline(name, &buffer[0], buffer.size()));
openssl_ptr<X509_STORE, X509_STORE_free> store(X509_STORE_new());
ASSERT_TRUE(store.NotNull());
openssl_ptr<X509_STORE_CTX, X509_STORE_CTX_free> store_ctx(
X509_STORE_CTX_new());
ASSERT_TRUE(store_ctx.NotNull());
X509_STORE_CTX_init(store_ctx.get(), store.get(), cert.get(), NULL);
// TODO(fredgc): Verify cert is signed by Google.
int result = X509_verify_cert(store_ctx.get());
ASSERT_GE(0, result) << " OEM Cert not valid. "
<< X509_verify_cert_error_string(store_ctx->error);
if (result == 0) {
printf("Cert not verified: %s.\n",
X509_verify_cert_error_string(store_ctx->error));
}
}
}
void Session::MakeRSACertificate(struct RSAPrivateKeyMessage* encrypted,
size_t message_size,
std::vector<uint8_t>* signature,
uint32_t allowed_schemes,
const vector<uint8_t>& rsa_key,
const vector<uint8_t>* encryption_key) {
if (encryption_key == NULL) encryption_key = &enc_key_;
struct RSAPrivateKeyMessage message;
if (allowed_schemes != kSign_RSASSA_PSS) {
uint32_t algorithm_n = htonl(allowed_schemes);
@@ -538,33 +609,56 @@ void Session::MakeRSACertificate(
memcpy(message.rsa_key, rsa_key.data(), rsa_key.size());
message.rsa_key_length = rsa_key.size();
}
EXPECT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_GetRandom(message.rsa_key_iv, wvcdm::KEY_IV_SIZE));
EXPECT_EQ(1, RAND_pseudo_bytes(message.rsa_key_iv, wvcdm::KEY_IV_SIZE));
message.nonce = nonce_;
EncryptMessage(&message, encrypted);
ServerSignMessage(*encrypted, signature);
EncryptProvisioningMessage(&message, encrypted, *encryption_key);
ServerSignBuffer(reinterpret_cast<const uint8_t*>(encrypted), message_size,
signature);
}
void Session::RewrapRSAKey(const struct RSAPrivateKeyMessage& encrypted,
size_t message_size,
const std::vector<uint8_t>& signature,
vector<uint8_t>* wrapped_key, bool force) {
size_t wrapped_key_length = 0;
const uint8_t* message_ptr = reinterpret_cast<const uint8_t*>(&encrypted);
ASSERT_EQ(OEMCrypto_ERROR_SHORT_BUFFER,
OEMCrypto_RewrapDeviceRSAKey(
session_id(), message_ptr, sizeof(encrypted), &signature[0],
session_id(), message_ptr, message_size, &signature[0],
signature.size(), &encrypted.nonce, encrypted.rsa_key,
encrypted.rsa_key_length, encrypted.rsa_key_iv, NULL,
&wrapped_key_length));
wrapped_key->clear();
wrapped_key->assign(wrapped_key_length, 0);
OEMCryptoResult sts = OEMCrypto_RewrapDeviceRSAKey(
session_id(), message_ptr, sizeof(encrypted), &signature[0],
signature.size(), &encrypted.nonce, encrypted.rsa_key,
encrypted.rsa_key_length, encrypted.rsa_key_iv, &(wrapped_key->front()),
&wrapped_key_length);
session_id(), message_ptr, message_size, &signature[0], signature.size(),
&encrypted.nonce, encrypted.rsa_key, encrypted.rsa_key_length,
encrypted.rsa_key_iv, &(wrapped_key->front()), &wrapped_key_length);
if (force) {
ASSERT_EQ(OEMCrypto_SUCCESS, sts);
}
if (OEMCrypto_SUCCESS != sts) {
wrapped_key->clear();
}
}
void Session::RewrapRSAKey30(const struct RSAPrivateKeyMessage& encrypted,
size_t message_size,
const std::vector<uint8_t>& encrypted_message_key,
vector<uint8_t>* wrapped_key, bool force) {
size_t wrapped_key_length = 0;
ASSERT_EQ(OEMCrypto_ERROR_SHORT_BUFFER,
OEMCrypto_RewrapDeviceRSAKey30(
session_id(), &nonce_, &encrypted_message_key[0],
encrypted_message_key.size(), encrypted.rsa_key,
encrypted.rsa_key_length, encrypted.rsa_key_iv, NULL,
&wrapped_key_length));
wrapped_key->clear();
wrapped_key->assign(wrapped_key_length, 0);
OEMCryptoResult sts = OEMCrypto_RewrapDeviceRSAKey30(
session_id(), &nonce_, &encrypted_message_key[0],
encrypted_message_key.size(), encrypted.rsa_key, encrypted.rsa_key_length,
encrypted.rsa_key_iv, &(wrapped_key->front()), &wrapped_key_length);
if (force) {
ASSERT_EQ(OEMCrypto_SUCCESS, sts);
}
@@ -573,48 +667,42 @@ void Session::RewrapRSAKey(const struct RSAPrivateKeyMessage& encrypted,
}
}
void Session::PreparePublicKey(const uint8_t* rsa_key,
size_t rsa_key_length) {
void Session::PreparePublicKey(const uint8_t* rsa_key, size_t rsa_key_length) {
if (rsa_key == NULL) {
rsa_key = kTestRSAPKCS8PrivateKeyInfo2_2048;
rsa_key_length = sizeof(kTestRSAPKCS8PrivateKeyInfo2_2048);
}
uint8_t* p = const_cast<uint8_t*>(rsa_key);
BIO* bio = BIO_new_mem_buf(p, rsa_key_length);
ASSERT_TRUE(NULL != bio);
PKCS8_PRIV_KEY_INFO* pkcs8_pki = d2i_PKCS8_PRIV_KEY_INFO_bio(bio, NULL);
ASSERT_TRUE(NULL != pkcs8_pki);
EVP_PKEY* evp = NULL;
evp = EVP_PKCS82PKEY(pkcs8_pki);
ASSERT_TRUE(NULL != evp);
openssl_ptr<BIO, BIO_vfree> bio(BIO_new_mem_buf(p, rsa_key_length));
ASSERT_TRUE(bio.NotNull());
openssl_ptr<PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_free> pkcs8_pki(
d2i_PKCS8_PRIV_KEY_INFO_bio(bio.get(), NULL));
ASSERT_TRUE(pkcs8_pki.NotNull());
openssl_ptr<EVP_PKEY, EVP_PKEY_free> evp(EVP_PKCS82PKEY(pkcs8_pki.get()));
ASSERT_TRUE(evp.NotNull());
if (public_rsa_) RSA_free(public_rsa_);
public_rsa_ = EVP_PKEY_get1_RSA(evp);
EVP_PKEY_free(evp);
PKCS8_PRIV_KEY_INFO_free(pkcs8_pki);
BIO_free(bio);
public_rsa_ = EVP_PKEY_get1_RSA(evp.get());
if (!public_rsa_) {
cout << "d2i_RSAPrivateKey failed. ";
dump_openssl_error();
ASSERT_TRUE(false);
FAIL() << "Could not parse public RSA key.";
}
switch (RSA_check_key(public_rsa_)) {
case 1: // valid.
ASSERT_TRUE(true);
return;
case 0: // not valid.
cout << "[rsa key not valid] ";
dump_openssl_error();
ASSERT_TRUE(false);
default: // -1 == check failed.
cout << "[error checking rsa key] ";
dump_openssl_error();
ASSERT_TRUE(false);
case 1: // valid.
return;
case 0: // not valid.
dump_openssl_error();
FAIL() << "[rsa key not valid] ";
default: // -1 == check failed.
dump_openssl_error();
FAIL() << "[error checking rsa key] ";
}
}
bool Session::VerifyPSSSignature(
EVP_PKEY* pkey, const uint8_t* message, size_t message_length,
const uint8_t* signature, size_t signature_length) {
bool Session::VerifyPSSSignature(EVP_PKEY* pkey, const uint8_t* message,
size_t message_length,
const uint8_t* signature,
size_t signature_length) {
EVP_MD_CTX ctx;
EVP_MD_CTX_init(&ctx);
EVP_PKEY_CTX* pctx = NULL;
@@ -656,28 +744,27 @@ bool Session::VerifyPSSSignature(
EVP_MD_CTX_cleanup(&ctx);
return true;
err:
err:
dump_openssl_error();
EVP_MD_CTX_cleanup(&ctx);
return false;
}
void Session::VerifyRSASignature(
const vector<uint8_t>& message, const uint8_t* signature,
size_t signature_length, RSA_Padding_Scheme padding_scheme) {
void Session::VerifyRSASignature(const vector<uint8_t>& message,
const uint8_t* signature,
size_t signature_length,
RSA_Padding_Scheme padding_scheme) {
EXPECT_TRUE(NULL != public_rsa_)
<< "No public RSA key loaded in test code.\n";
EXPECT_EQ(static_cast<size_t>(RSA_size(public_rsa_)), signature_length)
<< "Signature size is wrong. " << signature_length << ", should be "
<< RSA_size(public_rsa_) << "\n";
if (padding_scheme == kSign_RSASSA_PSS) {
EVP_PKEY* pkey = EVP_PKEY_new();
ASSERT_TRUE(EVP_PKEY_set1_RSA(pkey, public_rsa_) == 1);
openssl_ptr<EVP_PKEY, EVP_PKEY_free> pkey(EVP_PKEY_new());
ASSERT_EQ(1, EVP_PKEY_set1_RSA(pkey.get(), public_rsa_));
const bool ok = VerifyPSSSignature(pkey, &message[0], message.size(),
const bool ok = VerifyPSSSignature(pkey.get(), &message[0], message.size(),
signature, signature_length);
EVP_PKEY_free(pkey);
EXPECT_TRUE(ok) << "PSS signature check failed.";
} else if (padding_scheme == kSign_PKCS1_Block1) {
vector<uint8_t> padded_digest(signature_length);
@@ -694,51 +781,35 @@ void Session::VerifyRSASignature(
}
}
bool Session::GenerateRSASessionKey(vector<uint8_t>* enc_session_key) {
bool Session::GenerateRSASessionKey(vector<uint8_t>* session_key,
vector<uint8_t>* enc_session_key) {
if (!public_rsa_) {
cout << "No public RSA key loaded in test code.\n";
return false;
}
vector<uint8_t> session_key =
wvcdm::a2b_hex("6fa479c731d2770b6a61a5d1420bb9d1");
*session_key = wvcdm::a2b_hex("6fa479c731d2770b6a61a5d1420bb9d1");
enc_session_key->assign(RSA_size(public_rsa_), 0);
int status = RSA_public_encrypt(session_key.size(), &session_key[0],
int status = RSA_public_encrypt(session_key->size(), &(session_key->front()),
&(enc_session_key->front()), public_rsa_,
RSA_PKCS1_OAEP_PADDING);
int size = static_cast<int>(RSA_size(public_rsa_));
if (status != size) {
cout << "GenerateRSASessionKey error encrypting session key. ";
cout << "GenerateRSASessionKey error encrypting session key.\n";
dump_openssl_error();
return false;
}
return true;
}
void Session::InstallRSASessionTestKey(
const vector<uint8_t>& wrapped_rsa_key) {
void Session::InstallRSASessionTestKey(const vector<uint8_t>& wrapped_rsa_key) {
ASSERT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_LoadDeviceRSAKey(session_id(), &wrapped_rsa_key[0],
wrapped_rsa_key.size()));
GenerateDerivedKeysFromSessionKey();
}
void Session::DisallowDeriveKeys() {
GenerateNonce(&nonce_);
vector<uint8_t> enc_session_key;
PreparePublicKey();
ASSERT_TRUE(GenerateRSASessionKey(&enc_session_key));
vector<uint8_t> mac_context;
vector<uint8_t> enc_context;
FillDefaultContext(&mac_context, &enc_context);
ASSERT_NE(OEMCrypto_SUCCESS,
OEMCrypto_DeriveKeysFromSessionKey(
session_id(), &enc_session_key[0], enc_session_key.size(),
&mac_context[0], mac_context.size(), &enc_context[0],
enc_context.size()));
}
void Session::GenerateReport(
const std::string& pst, bool expect_success, Session* other) {
void Session::GenerateReport(const std::string& pst, bool expect_success,
Session* other) {
if (other) { // If other is specified, copy mac keys.
mac_key_server_ = other->mac_key_server_;
mac_key_client_ = other->mac_key_client_;
@@ -780,12 +851,13 @@ OEMCrypto_PST_Report* Session::pst_report() {
}
void Session::DeleteEntry(const std::string& pst) {
uint8_t* pst_ptr = encrypted_license_.pst;
uint8_t* pst_ptr = encrypted_license().pst;
memcpy(pst_ptr, pst.c_str(), min(sizeof(license_.pst), pst.length()));
ServerSignMessage(encrypted_license_, &signature_);
ServerSignBuffer(reinterpret_cast<const uint8_t*>(&padded_message_),
message_size_, &signature_);
ASSERT_EQ(OEMCrypto_SUCCESS,
OEMCrypto_DeleteUsageEntry(session_id(), pst_ptr, pst.length(),
message_ptr(), sizeof(MessageData),
message_ptr(), message_size_,
&signature_[0], signature_.size()));
}
@@ -796,7 +868,13 @@ void Session::ForceDeleteEntry(const std::string& pst) {
}
const uint8_t* Session::message_ptr() {
return reinterpret_cast<const uint8_t*>(&encrypted_license_);
return reinterpret_cast<const uint8_t*>(&encrypted_license());
}
void Session::set_message_size(size_t size) {
message_size_ = size;
ASSERT_GE(message_size_, sizeof(MessageData));
ASSERT_LE(message_size_, kMaxMessageSize);
}
} // namespace wvoec