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Cxbx-Reloaded
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Small update

This commit is contained in:
ergo720 2019-03-11 20:44:38 +01:00
parent 7dafc03484
commit 1b22c80c5c
4 changed files with 5 additions and 5 deletions
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4
src/common/crypto/EmuRsa.cpp
View File

@ -67,7 +67,7 @@ void init_tom_lib()
} }
bool xbox_exp_mod(unsigned char* pA, const unsigned char* pB, const unsigned char* pC, const unsigned char* pD, bool xbox_exp_mod(unsigned char* pA, const unsigned char* pB, const unsigned char* pC, const unsigned char* pD,
size_t b_size, size_t c_size, size_t d_size) size_t a_size, size_t b_size, size_t c_size, size_t d_size)
{ {
mp_int a, b, c, d; mp_int a, b, c, d;
CHK_MP_RET(mp_init(&a)); CHK_MP_RET(mp_init(&a));
@ -80,7 +80,7 @@ bool xbox_exp_mod(unsigned char* pA, const unsigned char* pB, const unsigned cha
CHK_MP_RET(mp_exptmod(&b, &c, &d, &a)); CHK_MP_RET(mp_exptmod(&b, &c, &d, &a));
CHK_MP_RET(mp_export(pA, NULL, -1, 4, -1, 0, &a)); CHK_MP_RET(mp_export(pA, NULL, -1, a_size, 0, 0, &a));
return true; return true;
} }

2
src/common/crypto/EmuRsa.h
View File

@ -46,7 +46,7 @@ typedef union _RSA_PUBLIC_KEY
void init_tom_lib(); void init_tom_lib();
bool xbox_exp_mod(unsigned char* pA, const unsigned char* pB, const unsigned char* pC, const unsigned char* pD, bool xbox_exp_mod(unsigned char* pA, const unsigned char* pB, const unsigned char* pC, const unsigned char* pD,
size_t b_size, size_t c_size, size_t d_size); size_t a_size, size_t b_size, size_t c_size, size_t d_size);
bool xbox_rsa_public(const unsigned char* in_buf, unsigned char* out_buf, RSA_PUBLIC_KEY key); bool xbox_rsa_public(const unsigned char* in_buf, unsigned char* out_buf, RSA_PUBLIC_KEY key);
bool verify_hash(const unsigned char* hash, const unsigned char* decryptBuffer, RSA_PUBLIC_KEY key); bool verify_hash(const unsigned char* hash, const unsigned char* decryptBuffer, RSA_PUBLIC_KEY key);

2
src/common/xbe/Xbe.cpp
View File

@ -792,7 +792,7 @@ bool Xbe::CheckXbeSignature()
memcpy(keys[2].Default, (void*)xboxkrnl::XePublicKeyDataChihiroBoot, 284); memcpy(keys[2].Default, (void*)xboxkrnl::XePublicKeyDataChihiroBoot, 284);
// TODO: memcpy(keys[3].Default, (void*)xboxkrnl::XePublicKeyDataDebug, 284); // TODO: memcpy(keys[3].Default, (void*)xboxkrnl::XePublicKeyDataDebug, 284);
for (int i = 0; i < keys.size(); i++) { for (unsigned int i = 0; i < keys.size(); i++) {
if (xbox_rsa_public(m_Header.pbDigitalSignature, crypt_buffer, keys[i])) { if (xbox_rsa_public(m_Header.pbDigitalSignature, crypt_buffer, keys[i])) {
if (verify_hash(SHADigest, crypt_buffer, keys[i])) { if (verify_hash(SHADigest, crypt_buffer, keys[i])) {
// Load the successful key into XboxKrnl::XePublicKeyData for application use // Load the successful key into XboxKrnl::XePublicKeyData for application use

2
src/core/kernel/exports/EmuKrnlXc.cpp
View File

@ -216,7 +216,7 @@ xboxkrnl::ULONG NTAPI JumpedModExp
) )
{ {
unsigned int len = dwN * 4; unsigned int len = dwN * 4;
if (xbox_exp_mod((unsigned char*)pA, (const unsigned char*)pB, (const unsigned char*)pC, (const unsigned char*)pD, len, len, len)) { if (xbox_exp_mod((unsigned char*)pA, (const unsigned char*)pB, (const unsigned char*)pC, (const unsigned char*)pD, len, len, len, len)) {
return 1; return 1;
} }