Files
moonlight-ios/Limelight/Crypto/mkcert.c
2019-07-05 22:20:55 -07:00

121 lines
2.9 KiB
C

#include "mkcert.h"
#include <stdio.h>
#include <stdlib.h>
#include <openssl/pem.h>
#include <openssl/conf.h>
#include <openssl/pkcs12.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
static const int NUM_BITS = 2048;
static const int SERIAL = 0;
static const int NUM_YEARS = 10;
int mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int years);
int add_ext(X509 *cert, int nid, char *value);
struct CertKeyPair generateCertKeyPair(void) {
BIO *bio_err;
X509 *x509 = NULL;
EVP_PKEY *pkey = NULL;
PKCS12 *p12 = NULL;
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
SSLeay_add_all_algorithms();
ERR_load_crypto_strings();
mkcert(&x509, &pkey, NUM_BITS, SERIAL, NUM_YEARS);
p12 = PKCS12_create("limelight", "GameStream", pkey, x509, NULL, 0, 0, 0, 0, 0);
if (p12 == NULL) {
printf("Error generating a valid PKCS12 certificate.\n");
}
// Debug Print statements
//RSA_print_fp(stdout, pkey->pkey.rsa, 0);
//X509_print_fp(stdout, x509);
//PEM_write_PUBKEY(stdout, pkey);
//PEM_write_PrivateKey(stdout, pkey, NULL, NULL, 0, NULL, NULL);
//PEM_write_X509(stdout, x509);
#ifndef OPENSSL_NO_ENGINE
ENGINE_cleanup();
#endif
CRYPTO_cleanup_all_ex_data();
CRYPTO_mem_leaks(bio_err);
BIO_free(bio_err);
return (CertKeyPair){x509, pkey, p12};
}
void freeCertKeyPair(struct CertKeyPair certKeyPair) {
X509_free(certKeyPair.x509);
EVP_PKEY_free(certKeyPair.pkey);
PKCS12_free(certKeyPair.p12);
}
int mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int years) {
X509 *x;
EVP_PKEY *pk;
RSA *rsa;
X509_NAME *name = NULL;
if (*pkeyp == NULL) {
if ((pk=EVP_PKEY_new()) == NULL) {
return(0);
}
} else {
pk = *pkeyp;
}
if (*x509p == NULL) {
if ((x = X509_new()) == NULL) {
goto err;
}
} else {
x = *x509p;
}
rsa = RSA_generate_key(bits, RSA_F4, NULL, NULL);
if (!EVP_PKEY_assign_RSA(pk, rsa)) {
goto err;
}
X509_set_version(x, 2);
ASN1_INTEGER_set(X509_get_serialNumber(x), serial);
X509_gmtime_adj(X509_get_notBefore(x), 0);
X509_gmtime_adj(X509_get_notAfter(x), (long)60*60*24*365*years);
X509_set_pubkey(x, pk);
name = X509_get_subject_name(x);
/* This function creates and adds the entry, working out the
* correct string type and performing checks on its length.
*/
X509_NAME_add_entry_by_txt(name,"CN", MBSTRING_ASC, (unsigned char*)"NVIDIA GameStream Client", -1, -1, 0);
/* Its self signed so set the issuer name to be the same as the
* subject.
*/
X509_set_issuer_name(x, name);
if (!X509_sign(x, pk, EVP_sha256())) {
goto err;
}
*x509p = x;
*pkeyp = pk;
return(1);
err:
return(0);
}