1 files changed, 0 insertions, 168 deletions
diff --git a/host/commands/secure_env/soft_gatekeeper.h b/host/commands/secure_env/soft_gatekeeper.h
deleted file mode 100644
index c3322e87d..000000000
--- a/host/commands/secure_env/soft_gatekeeper.h
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * Copyright 2015 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.
- *
- */
-
-#pragma once
-
-extern "C" {
-#include <openssl/rand.h>
-#include <openssl/sha.h>
-
-#include <crypto_scrypt.h>
-}
-
-#include <android-base/memory.h>
-#include <gatekeeper/gatekeeper.h>
-
-#include <iostream>
-#include <memory>
-#include <unordered_map>
-
-namespace gatekeeper {
-
-struct fast_hash_t {
-    uint64_t salt;
-    uint8_t digest[SHA256_DIGEST_LENGTH];
-};
-
-class SoftGateKeeper : public GateKeeper {
-  public:
-    static const uint32_t SIGNATURE_LENGTH_BYTES = 32;
-
-    // scrypt params
-    static const uint64_t N = 16384;
-    static const uint32_t r = 8;
-    static const uint32_t p = 1;
-
-    static const int MAX_UINT_32_CHARS = 11;
-
-    SoftGateKeeper() {
-        key_.reset(new uint8_t[SIGNATURE_LENGTH_BYTES]);
-        memset(key_.get(), 0, SIGNATURE_LENGTH_BYTES);
-    }
-
-    virtual ~SoftGateKeeper() {}
-
-    virtual bool GetAuthTokenKey(const uint8_t** auth_token_key, uint32_t* length) const {
-        if (auth_token_key == NULL || length == NULL) return false;
-        *auth_token_key = key_.get();
-        *length = SIGNATURE_LENGTH_BYTES;
-        return true;
-    }
-
-    virtual void GetPasswordKey(const uint8_t** password_key, uint32_t* length) {
-        if (password_key == NULL || length == NULL) return;
-        *password_key = key_.get();
-        *length = SIGNATURE_LENGTH_BYTES;
-    }
-
-    virtual void ComputePasswordSignature(uint8_t* signature, uint32_t signature_length,
-                                          const uint8_t*, uint32_t, const uint8_t* password,
-                                          uint32_t password_length, salt_t salt) const {
-        if (signature == NULL) return;
-        crypto_scrypt(password, password_length, reinterpret_cast<uint8_t*>(&salt), sizeof(salt), N,
-                      r, p, signature, signature_length);
-    }
-
-    virtual void GetRandom(void* random, uint32_t requested_length) const {
-        if (random == NULL) return;
-        RAND_pseudo_bytes((uint8_t*)random, requested_length);
-    }
-
-    virtual void ComputeSignature(uint8_t* signature, uint32_t signature_length, const uint8_t*,
-                                  uint32_t, const uint8_t*, const uint32_t) const {
-        if (signature == NULL) return;
-        memset(signature, 0, signature_length);
-    }
-
-    virtual uint64_t GetMillisecondsSinceBoot() const {
-        struct timespec time;
-        int res = clock_gettime(CLOCK_BOOTTIME, &time);
-        if (res < 0) return 0;
-        return (time.tv_sec * 1000) + (time.tv_nsec / 1000 / 1000);
-    }
-
-    virtual bool IsHardwareBacked() const { return false; }
-
-    virtual bool GetFailureRecord(uint32_t uid, secure_id_t user_id, failure_record_t* record,
-                                  bool /* secure */) {
-        failure_record_t* stored = &failure_map_[uid];
-        if (user_id != stored->secure_user_id) {
-            stored->secure_user_id = user_id;
-            stored->last_checked_timestamp = 0;
-            stored->failure_counter = 0;
-        }
-        memcpy(record, stored, sizeof(*record));
-        return true;
-    }
-
-    virtual bool ClearFailureRecord(uint32_t uid, secure_id_t user_id, bool /* secure */) {
-        failure_record_t* stored = &failure_map_[uid];
-        stored->secure_user_id = user_id;
-        stored->last_checked_timestamp = 0;
-        stored->failure_counter = 0;
-        return true;
-    }
-
-    virtual bool WriteFailureRecord(uint32_t uid, failure_record_t* record, bool /* secure */) {
-        failure_map_[uid] = *record;
-        return true;
-    }
-
-    fast_hash_t ComputeFastHash(const SizedBuffer& password, uint64_t salt) {
-        fast_hash_t fast_hash;
-        size_t digest_size = password.size() + sizeof(salt);
-        std::unique_ptr<uint8_t[]> digest(new uint8_t[digest_size]);
-        memcpy(digest.get(), &salt, sizeof(salt));
-        memcpy(digest.get() + sizeof(salt), password.Data<uint8_t>(), password.size());
-
-        SHA256(digest.get(), digest_size, (uint8_t*)&fast_hash.digest);
-
-        fast_hash.salt = salt;
-        return fast_hash;
-    }
-
-    bool VerifyFast(const fast_hash_t& fast_hash, const SizedBuffer& password) {
-        fast_hash_t computed = ComputeFastHash(password, fast_hash.salt);
-        return memcmp(computed.digest, fast_hash.digest, SHA256_DIGEST_LENGTH) == 0;
-    }
-
-    bool DoVerify(const password_handle_t* expected_handle, const SizedBuffer& password) {
-        uint64_t user_id = android::base::get_unaligned<secure_id_t>(&expected_handle->user_id);
-        FastHashMap::const_iterator it = fast_hash_map_.find(user_id);
-        if (it != fast_hash_map_.end() && VerifyFast(it->second, password)) {
-            return true;
-        } else {
-            if (GateKeeper::DoVerify(expected_handle, password)) {
-                uint64_t salt;
-                GetRandom(&salt, sizeof(salt));
-                fast_hash_map_[user_id] = ComputeFastHash(password, salt);
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-  private:
-    typedef std::unordered_map<uint32_t, failure_record_t> FailureRecordMap;
-    typedef std::unordered_map<uint64_t, fast_hash_t> FastHashMap;
-
-    std::unique_ptr<uint8_t[]> key_;
-    FailureRecordMap failure_map_;
-    FastHashMap fast_hash_map_;
-};
-}  // namespace gatekeeper