mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-11-28 11:04:12 +01:00
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
#include "WuCrypto.h"
|
|
#include <assert.h>
|
|
#include <openssl/hmac.h>
|
|
#include <openssl/rand.h>
|
|
#include "WuRng.h"
|
|
|
|
WuSHA1Digest WuSHA1(const uint8_t* src, size_t len, const void* key,
|
|
size_t keyLen) {
|
|
WuSHA1Digest digest;
|
|
HMAC(EVP_sha1(), key, keyLen, src, len, digest.bytes, NULL);
|
|
|
|
return digest;
|
|
}
|
|
|
|
WuCert::WuCert() : key(EVP_PKEY_new()), x509(X509_new()) {
|
|
RSA* rsa = RSA_new();
|
|
BIGNUM* n = BN_new();
|
|
BN_set_word(n, RSA_F4);
|
|
|
|
if (!RAND_status()) {
|
|
uint64_t seed = WuRandomU64();
|
|
RAND_seed(&seed, sizeof(seed));
|
|
}
|
|
|
|
RSA_generate_key_ex(rsa, 2048, n, NULL);
|
|
EVP_PKEY_assign_RSA(key, rsa);
|
|
|
|
BIGNUM* serial = BN_new();
|
|
X509_NAME* name = X509_NAME_new();
|
|
X509_set_pubkey(x509, key);
|
|
BN_pseudo_rand(serial, 64, 0, 0);
|
|
|
|
X509_set_version(x509, 0L);
|
|
X509_NAME_add_entry_by_NID(name, NID_commonName, MBSTRING_UTF8,
|
|
(unsigned char*)"wusocket", -1, -1, 0);
|
|
X509_set_subject_name(x509, name);
|
|
X509_set_issuer_name(x509, name);
|
|
X509_gmtime_adj(X509_get_notBefore(x509), 0);
|
|
X509_gmtime_adj(X509_get_notAfter(x509), 365 * 24 * 3600);
|
|
X509_sign(x509, key, EVP_sha1());
|
|
|
|
unsigned int len = 32;
|
|
uint8_t buf[32] = {0};
|
|
X509_digest(x509, EVP_sha256(), buf, &len);
|
|
|
|
assert(len == 32);
|
|
for (unsigned int i = 0; i < len; i++) {
|
|
if (i < 31) {
|
|
snprintf(fingerprint + i * 3, 4, "%02X:", buf[i]);
|
|
} else {
|
|
snprintf(fingerprint + i * 3, 3, "%02X", buf[i]);
|
|
}
|
|
}
|
|
|
|
fingerprint[95] = '\0';
|
|
|
|
BN_free(n);
|
|
BN_free(serial);
|
|
X509_NAME_free(name);
|
|
}
|
|
|
|
WuCert::~WuCert() {
|
|
EVP_PKEY_free(key);
|
|
X509_free(x509);
|
|
}
|