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Code Issues Releases Wiki Activity

Added ability to use external cert

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This commit is contained in:
Bryan Roe
2019-01-11 12:39:44 -08:00
parent eaff1c25e4
commit c0db749e8e
3 changed files with 70 additions and 30 deletions
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47
microstack/ILibCrypto.c
View File

@@ -501,11 +501,15 @@ int __fastcall util_add_ext(X509 *cert, int nid, char *value)
}
void __fastcall util_freecert(struct util_cert* cert)
{
if ((cert->flags & ILibCrypto_Cert_Ownership_Other) == 0)
{
if (cert->x509 != NULL) X509_free(cert->x509);
if (cert->pkey != NULL) EVP_PKEY_free(cert->pkey);
}
cert->x509 = NULL;
cert->pkey = NULL;
cert->flags = 0;
}
int __fastcall util_to_cer(struct util_cert cert, char** data)
@@ -764,18 +768,31 @@ int __fastcall util_mkCert(struct util_cert *rootcert, struct util_cert* cert, i
cert->x509 = x;
cert->pkey = pk;
cert->flags = 0;
return 1;
err:
return 0;
}
int __fastcall util_certhash(struct util_cert cert, char* result) {
int hashlen = UTIL_SHA384_HASHSIZE;
if (cert.x509 == NULL) return -1;
X509_digest(cert.x509, EVP_sha384(), (unsigned char*)result, (unsigned int *)&hashlen); // OpenSSL 1.1
return 0;
}
int __fastcall util_certhash2(X509* cert, char* result) {
int hashlen = UTIL_SHA384_HASHSIZE;
if (cert == NULL) return -1;
X509_digest(cert, EVP_sha384(), (unsigned char*)result, (unsigned int*)&hashlen); // OpenSSL 1.1
return 0;
}
int __fastcall util_keyhash(struct util_cert cert, char* result)
{
int hashlen = UTIL_SHA384_HASHSIZE;
if (cert.x509 == NULL) return -1;
//util_sha256((char*)(cert.x509->cert_info->key->public_key->data), cert.x509->cert_info->key->public_key->length, result); // OpenSSL 1.0
X509_pubkey_digest(cert.x509, EVP_sha384(), (unsigned char*)result,(unsigned int *) &hashlen); // OpenSSL 1.1
return 0;
}
@@ -784,7 +801,6 @@ int __fastcall util_keyhash2(X509* cert, char* result)
{
int hashlen = UTIL_SHA384_HASHSIZE;
if (cert == NULL) return -1;
//util_sha256((char*)(cert->cert_info->key->public_key->data), cert->cert_info->key->public_key->length, result); // OpenSSL 1.0
X509_pubkey_digest(cert, EVP_sha384(), (unsigned char*)result, (unsigned int*)&hashlen); // OpenSSL 1.1
return 0;
}
@@ -1030,4 +1046,31 @@ int __fastcall util_rsaverify(X509 *cert, char* data, int datalen, char* sign, i
return r;
}
#ifdef _DEBUG
// Saves the SSL/TLS session private keys to file.
// Because we do lots of DTLS, we will be saving both client and server randoms pointing to the same key.
// WARNING: THIS IS FOR DEBUG ONLY, NEVER RELEASE THIS. For safety, comment this out.
void __fastcall util_savekeys(SSL* ssl) {
/*
int len;
char clientRandom[32], serverRandom[32], sessionSecret[48], clientRandomHex[65], serverRandomHex[65], sessionSecretHex[97], text[2000];
// Get the client random and session key.
if (ssl == NULL) return;
if (SSL_get_client_random(ssl, clientRandom, 32) != 32) return;
if (SSL_get_server_random(ssl, serverRandom, 32) != 32) return;
if (SSL_SESSION_get_master_key(SSL_get_session(ssl), sessionSecret, 48) != 48) return;
// Convert the randoms and key into hex
util_tohex(clientRandom, 32, clientRandomHex);
util_tohex(serverRandom, 32, serverRandomHex);
util_tohex(sessionSecret, 48, sessionSecretHex);
// Append the client random and key to the log file.
len = snprintf(text, 1000, "CLIENT_RANDOM %s %s\r\nCLIENT_RANDOM %s %s\r\n", clientRandomHex, sessionSecretHex, serverRandomHex, sessionSecretHex);
util_appendfile("meshagentkeys.log", text, len);
*/
}
#endif
#endif

10
microstack/ILibCrypto.h
View File

@@ -129,7 +129,9 @@ typedef struct util_cert
{
X509 *x509;
EVP_PKEY *pkey;
int flags;
} util_cert;
typedef enum CERTIFICATE_TYPES
{
CERTIFICATE_ROOT = 1,
@@ -137,6 +139,7 @@ typedef enum CERTIFICATE_TYPES
CERTIFICATE_TLS_CLIENT = 3
} CERTIFICATE_TYPES;
#define ILibCrypto_Cert_Ownership_Other 0x01
void __fastcall util_openssl_init();
void __fastcall util_openssl_uninit();
@@ -155,6 +158,8 @@ int __fastcall util_mkCert(struct util_cert *rootcert, struct util_cert* cert,
void __fastcall util_printcert(struct util_cert cert);
void __fastcall util_printcert_pk(struct util_cert cert);
int __fastcall util_certhash(struct util_cert cert, char* result);
int __fastcall util_certhash2(X509* cert, char* result);
int __fastcall util_keyhash(struct util_cert cert, char* result);
int __fastcall util_keyhash2(X509* cert, char* result);
int __fastcall util_sign(struct util_cert cert, char* data, int datalen, char** signature);
@@ -166,6 +171,11 @@ int __fastcall util_decrypt(char* encdata, int encdatalen, struct util_cert ce
int __fastcall util_rsaencrypt(X509 *cert, char* data, int datalen, char** encdata);
int __fastcall util_rsadecrypt(struct util_cert cert, char* data, int datalen, char** decdata);
int __fastcall util_rsaverify(X509 *cert, char* data, int datalen, char* sign, int signlen);
#ifdef _DEBUG
void __fastcall util_savekeys(SSL* ssl);
#endif
#endif

35
microstack/ILibWrapperWebRTC.c
View File

@@ -55,12 +55,9 @@ typedef struct
ILibWrapper_WebRTC_ConnectionFactory mStunModule;
ILibSparseArray Connections;
int NextConnectionID;
struct util_cert selfcert;
struct util_cert selftlscert;
struct util_cert selftlsclientcert;
struct util_cert cert;
SSL_CTX* ctx;
char tlsServerCertThumbprint[UTIL_SHA256_HASHSIZE];
char g_selfid[UTIL_SHA256_HASHSIZE];
ILibWebRTC_TURN_ConnectFlags mTurnSetting;
struct sockaddr_in6 mTurnServer;
@@ -457,23 +454,22 @@ void ILibWrapper_WebRTC_InitializeCrypto(ILibWrapper_WebRTC_ConnectionFactoryStr
SSL_CTX_set_ex_data(factory->ctx, ILibWrapper_WebRTC_ConnectionFactoryIndex, factory);
}
if (tls != ILibWebWrapperWebRTC_ConnectionFactory_INIT_CRYPTO_LATER && factory->selftlscert.x509 == NULL)
if (tls != ILibWebWrapperWebRTC_ConnectionFactory_INIT_CRYPTO_LATER && factory->cert.x509 == NULL)
{
// Init Certs
if (tls == NULL)
{
util_mkCert(NULL, &(factory->selfcert), 2048, 10000, "localhost", CERTIFICATE_ROOT, NULL);
util_keyhash(factory->selfcert, factory->g_selfid);
util_mkCert(&(factory->selfcert), &(factory->selftlscert), 2048, 10000, "localhost", CERTIFICATE_TLS_SERVER, NULL);
util_mkCert(NULL, &(factory->cert), 2048, 10000, "localhost", CERTIFICATE_ROOT, NULL);
}
else
{
memcpy_s(&(factory->selftlscert), sizeof(struct util_cert), tls, sizeof(struct util_cert));
memcpy_s(&(factory->cert), sizeof(struct util_cert), tls, sizeof(struct util_cert));
factory->cert.flags |= ILibCrypto_Cert_Ownership_Other;
}
SSL_CTX_use_certificate(factory->ctx, factory->selftlscert.x509);
SSL_CTX_use_PrivateKey(factory->ctx, factory->selftlscert.pkey);
X509_digest(factory->selftlscert.x509, EVP_get_digestbyname("sha256"), (unsigned char*)factory->tlsServerCertThumbprint, (unsigned int*)&l);
SSL_CTX_use_certificate(factory->ctx, factory->cert.x509);
SSL_CTX_use_PrivateKey(factory->ctx, factory->cert.pkey);
X509_digest(factory->cert.x509, EVP_get_digestbyname("sha256"), (unsigned char*)factory->tlsServerCertThumbprint, (unsigned int*)&l);
if (factory->mStunModule != NULL) { ILibStunClient_SetOptions(factory->mStunModule, factory->ctx, factory->tlsServerCertThumbprint); }
}
@@ -484,18 +480,9 @@ void ILibWrapper_WebRTC_UnInitializeCrypto(ILibWrapper_WebRTC_ConnectionFactoryS
SSL_CTX_free(factory->ctx);
factory->ctx = NULL;
// UnInit Certs
if (factory->selfcert.x509 != NULL)
{
util_freecert(&(factory->selftlsclientcert));
util_freecert(&(factory->selftlscert));
util_freecert(&(factory->selfcert));
}
memset(&(factory->selftlsclientcert),0,sizeof(struct util_cert));
memset(&(factory->selftlscert),0,sizeof(struct util_cert));
memset(&(factory->selfcert),0,sizeof(struct util_cert));
// UnInit Cert
if (factory->cert.x509 != NULL) { util_freecert(&(factory->cert)); }
memset(&(factory->cert), 0, sizeof(struct util_cert));
// UnInit SSL
util_openssl_uninit();