From 492558c6231e7738f35f140005df5bb31a0af9bc Mon Sep 17 00:00:00 2001
From: gcontini <1121667+gcontini@users.noreply.github.com>
Date: 周六, 30 11月 2019 14:56:28 +0800
Subject: [PATCH] merge commits
---
src/library/os/windows/signature_verifier.cpp | 243 +++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 238 insertions(+), 5 deletions(-)
diff --git a/src/library/os/windows/signature_verifier.cpp b/src/library/os/windows/signature_verifier.cpp
index 6d73513..88194a2 100644
--- a/src/library/os/windows/signature_verifier.cpp
+++ b/src/library/os/windows/signature_verifier.cpp
@@ -5,16 +5,249 @@
* Author: devel
*/
-#include "verifier.hpp"
+#include "../os.h"
+#include <stdio.h>
+#include <sstream>
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <bcrypt.h>
+#include <wincrypt.h>
+#include <iphlpapi.h>
+#include <windows.h>
+#pragma comment(lib, "bcrypt.lib")
+
+#include <public_key.h>
+#include "../../base/logger.h"
+#include "../../base/base64.h"
+#include "../signature_verifier.h"
+
+#define RSA_KEY_BITLEN 1024
namespace license {
+using namespace std;
+#define NT_SUCCESS(Status) (((NTSTATUS)(Status)) >= 0)
-verifier::verifier() {
- // TODO Auto-generated constructor stub
+static const void formatError(DWORD status, const char* description) {
+ char msgBuffer[256];
+ FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, status, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), &msgBuffer[0],
+ sizeof(msgBuffer) - 1, nullptr);
+ LOG_DEBUG("error %s : %s %h", description, msgBuffer, status);
}
-verifier::~verifier() {
- // TODO Auto-generated destructor stub
+#pragma pack(push, 1)
+typedef struct {
+ BCRYPT_RSAKEY_BLOB rsakey;
+ BYTE pkExp[3];
+ BYTE modulus[RSA_KEY_BITLEN / 8];
+} PUBKEY_BLOB, *P_PUBKEY_BLOB;
+#pragma pack(pop)
+
+static BCRYPT_ALG_HANDLE openSignatureProvider() {
+ DWORD status;
+ BCRYPT_ALG_HANDLE hSignAlg = nullptr;
+
+ return hSignAlg;
+}
+
+static BCRYPT_ALG_HANDLE openHashProvider() {
+ DWORD status;
+ BCRYPT_ALG_HANDLE hHashAlg = nullptr;
+ if (!NT_SUCCESS(status = BCryptOpenAlgorithmProvider(&hHashAlg, BCRYPT_SHA256_ALGORITHM, NULL, 0))) {
+ throw logic_error("Error opening hash provider");
+ }
+ return hHashAlg;
+}
+
+static DWORD hashData(BCRYPT_HASH_HANDLE& hHash, const string& data, PBYTE pbHash, DWORD hashDataLenght) {
+ DWORD status;
+ bool success = false;
+ if (NT_SUCCESS(status = BCryptHashData(hHash, (BYTE*)data.c_str(), (ULONG)data.length(), 0))) {
+ status = BCryptFinishHash(hHash, pbHash, hashDataLenght, 0);
+ }
+ return status;
+}
+
+static size_t read_length(uint8_t*& ptr) {
+ uint8_t len = *ptr++;
+ size_t result = 0;
+ cout << (len & 0x80) << endl;
+ if ((len & 0x80) > 0) {
+ size_t blen = len & 0x7F;
+ for (int i = 0; i < blen; i++) {
+ result += (*(ptr++) << (i * 8));
+ }
+ } else {
+ result = len;
+ }
+ return result;
+}
+
+static FUNCTION_RETURN read_sequence(uint8_t*& ptr) {
+ uint8_t tag = *ptr++;
+ if (tag != 0x30) {
+ return FUNC_RET_ERROR;
+ }
+ read_length(ptr);
+ return FUNC_RET_OK;
+}
+
+static FUNCTION_RETURN read_integer(uint8_t*& ptr, BYTE* location, const size_t expected_length) {
+ uint8_t tag = *ptr++;
+ if (tag != 0x02) {
+ return FUNC_RET_ERROR;
+ }
+ size_t length = read_length(ptr);
+ // skip the padding byte
+ if (*ptr == 0) {
+ length--;
+ ptr++;
+ }
+ if (expected_length < length) {
+ return FUNC_RET_ERROR;
+ }
+ for (int i = 0; i < length; i++) {
+ location[i] = *(ptr++);
+ }
+ return FUNC_RET_OK;
+}
+
+static FUNCTION_RETURN readPublicKey(const BCRYPT_ALG_HANDLE sig_alg, BCRYPT_KEY_HANDLE* hKey) {
+ FUNCTION_RETURN result = FUNC_RET_ERROR;
+ DWORD status;
+ PUBKEY_BLOB pubk;
+ pubk.rsakey.Magic = BCRYPT_RSAPUBLIC_MAGIC;
+ pubk.rsakey.BitLength = RSA_KEY_BITLEN;
+ pubk.rsakey.cbPublicExp = 3;
+ pubk.rsakey.cbModulus = RSA_KEY_BITLEN / 8;
+ pubk.rsakey.cbPrime1 = 0;
+ pubk.rsakey.cbPrime2 = 0;
+ uint8_t pubKey[] = PUBLIC_KEY;
+ uint8_t* pub_key_idx = &pubKey[0];
+ read_sequence(pub_key_idx);
+ read_integer(pub_key_idx, (BYTE*)&pubk.modulus, sizeof(pubk.modulus));
+ read_integer(pub_key_idx, (BYTE*)&pubk.pkExp, sizeof(pubk.pkExp));
+ if (NT_SUCCESS(status = BCryptImportKeyPair(sig_alg, nullptr, BCRYPT_RSAPUBLIC_BLOB, hKey, (PUCHAR)&pubk,
+ sizeof(pubk), 0))) {
+ result = FUNC_RET_OK;
+ } else {
+#ifdef _DEBUG
+ formatError(status, "error importing public key");
+#endif
+ }
+ return result;
+}
+
+static FUNCTION_RETURN verifyHash(const PBYTE pbHash, const DWORD hashDataLenght, const string& signatureBuffer) {
+ BCRYPT_KEY_HANDLE phKey = nullptr;
+ DWORD status;
+ FUNCTION_RETURN result = FUNC_RET_ERROR;
+ PBYTE pbSignature = nullptr;
+ DWORD dwSigLen;
+ BYTE* sigBlob = nullptr;
+ BCRYPT_ALG_HANDLE hSignAlg = nullptr;
+
+ // FIXME!!
+ sigBlob = unbase64(signatureBuffer.c_str(), (int)signatureBuffer.size(), (int*)&dwSigLen);
+
+ if (NT_SUCCESS(status = BCryptOpenAlgorithmProvider(&hSignAlg, BCRYPT_RSA_ALGORITHM, NULL, 0))) {
+ if ((result = readPublicKey(hSignAlg, &phKey)) == FUNC_RET_OK) {
+ BCRYPT_PKCS1_PADDING_INFO paddingInfo;
+ ZeroMemory(&paddingInfo, sizeof(paddingInfo));
+ paddingInfo.pszAlgId = BCRYPT_SHA256_ALGORITHM;
+ if (NT_SUCCESS(status = BCryptVerifySignature(phKey, &paddingInfo, pbHash, hashDataLenght, sigBlob,
+ dwSigLen, BCRYPT_PAD_PKCS1))) {
+ result = FUNC_RET_OK;
+ } else {
+ result = FUNC_RET_ERROR;
+#ifdef _DEBUG
+ formatError(status, "error verifying signature");
+#endif
+ }
+ } else {
+ LOG_DEBUG("Error reading public key");
+ }
+ } else {
+ result = FUNC_RET_NOT_AVAIL;
+#ifdef _DEBUG
+ formatError(status, "error opening RSA provider");
+#endif
+ }
+
+ if (phKey != nullptr) {
+ BCryptDestroyKey(phKey);
+ }
+ if (hSignAlg != nullptr) {
+ BCryptCloseAlgorithmProvider(hSignAlg, 0);
+ }
+ if (sigBlob) {
+ free(sigBlob);
+ }
+ return result;
+}
+
+FUNCTION_RETURN verify_signature(const std::string& stringToVerify, const std::string& signatureB64) {
+ BCRYPT_HASH_HANDLE hHash = nullptr;
+ PBYTE pbHashObject = nullptr, pbHashData = nullptr;
+
+ FUNCTION_RETURN result = FUNC_RET_ERROR;
+ const HANDLE hProcessHeap = GetProcessHeap();
+ // BCRYPT_ALG_HANDLE sig_alg = openSignatureProvider();
+
+ BCRYPT_ALG_HANDLE hash_alg = openHashProvider();
+ DWORD status;
+
+ // calculate the size of the buffer to hold the hash object
+ DWORD cbData = 0, cbHashObject = 0;
+ // and the size to keep the hashed data
+ DWORD cbHashDataLenght = 0;
+ if (NT_SUCCESS(status = BCryptGetProperty(hash_alg, BCRYPT_OBJECT_LENGTH, (PBYTE)&cbHashObject, sizeof(DWORD),
+ &cbData, 0)) &&
+ NT_SUCCESS(status = BCryptGetProperty(hash_alg, BCRYPT_HASH_LENGTH, (PBYTE)&cbHashDataLenght, sizeof(DWORD),
+ &cbData, 0))) {
+ // allocate the hash object on the heap
+ pbHashObject = (PBYTE)HeapAlloc(hProcessHeap, 0, cbHashObject);
+ pbHashData = (PBYTE)HeapAlloc(hProcessHeap, 0, cbHashDataLenght);
+ if (NULL != pbHashObject && nullptr != pbHashData) {
+ if (NT_SUCCESS(status = BCryptCreateHash(hash_alg, &hHash, pbHashObject, cbHashObject, NULL, 0, 0))) {
+ if (NT_SUCCESS(status = hashData(hHash, stringToVerify, pbHashData, cbHashDataLenght))) {
+ result = verifyHash(pbHashData, cbHashDataLenght, signatureB64);
+ } else {
+ result = FUNC_RET_NOT_AVAIL;
+#ifdef _DEBUG
+ formatError(status, "error hashing data");
+#endif
+ }
+ } else {
+ result = FUNC_RET_NOT_AVAIL;
+#ifdef _DEBUG
+ formatError(status, "error creating hash");
+#endif
+ }
+ } else {
+ result = FUNC_RET_BUFFER_TOO_SMALL;
+ LOG_DEBUG("Error allocating memory");
+ }
+ } else {
+ result = FUNC_RET_NOT_AVAIL;
+#ifdef _DEBUG
+ formatError(status, "**** Error returned by BCryptGetProperty");
+#endif
+ }
+
+ if (hHash) {
+ BCryptDestroyHash(hHash);
+ }
+ if (pbHashObject) {
+ HeapFree(hProcessHeap, 0, pbHashObject);
+ }
+ if (pbHashData) {
+ HeapFree(hProcessHeap, 0, pbHashData);
+ }
+ if (hash_alg != nullptr) {
+ BCryptCloseAlgorithmProvider(hash_alg, 0);
+ }
+ return result;
}
} /* namespace license */
--
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