#include "chrome/common/extensions/api/networking_private/networking_private_crypto.h"
-#include <cert.h>
-#include <cryptohi.h>
-#include <keyhi.h>
-#include <keythi.h>
-#include <pk11pub.h>
-#include <sechash.h>
-#include <secport.h>
+namespace networking_private_crypto {
-#include "base/base64.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
-#include "crypto/nss_util.h"
-#include "crypto/rsa_private_key.h"
-#include "crypto/scoped_nss_types.h"
-#include "net/cert/pem_tokenizer.h"
-#include "net/cert/x509_certificate.h"
-
-const unsigned char kTrustedCAPublicKeyDER[] = {
+const uint8 kTrustedCAPublicKeyDER[] = {
0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xbc, 0x22, 0x80,
0xbd, 0x80, 0xf6, 0x3a, 0x21, 0x00, 0x3b, 0xae, 0x76, 0x5e, 0x35, 0x7f,
0x3d, 0xc3, 0x64, 0x5c, 0x55, 0x94, 0x86, 0x34, 0x2f, 0x05, 0x87, 0x28,
0x61, 0x47, 0x9e, 0xab, 0x80, 0xb7, 0xe4, 0x48, 0x80, 0x2a, 0x92, 0xc5,
0x1b, 0x02, 0x03, 0x01, 0x00, 0x01};
-namespace {
-
-// Parses |pem_data| for a PEM block of |pem_type|.
-// Returns true if a |pem_type| block is found, storing the decoded result in
-// |der_output|.
-bool GetDERFromPEM(const std::string& pem_data,
- const std::string& pem_type,
- std::vector<uint8>* der_output) {
- std::vector<std::string> headers;
- headers.push_back(pem_type);
- net::PEMTokenizer pem_tok(pem_data, headers);
- if (!pem_tok.GetNext()) {
- return false;
- }
-
- der_output->assign(pem_tok.data().begin(), pem_tok.data().end());
- return true;
-}
-
-} // namespace
-
-NetworkingPrivateCrypto::NetworkingPrivateCrypto() {}
-
-NetworkingPrivateCrypto::~NetworkingPrivateCrypto() {}
-
-bool NetworkingPrivateCrypto::VerifyCredentials(
- const std::string& certificate,
- const std::string& signature,
- const std::string& data,
- const std::string& connected_mac) {
- crypto::EnsureNSSInit();
-
- std::vector<uint8> cert_data;
- if (!GetDERFromPEM(certificate, "CERTIFICATE", &cert_data)) {
- LOG(ERROR) << "Failed to parse certificate.";
- return false;
- }
- SECItem der_cert;
- der_cert.type = siDERCertBuffer;
- der_cert.data = cert_data.data();
- der_cert.len = cert_data.size();
-
- // Parse into a certificate structure.
- typedef scoped_ptr<
- CERTCertificate,
- crypto::NSSDestroyer<CERTCertificate, CERT_DestroyCertificate> >
- ScopedCERTCertificate;
- ScopedCERTCertificate cert(CERT_NewTempCertificate(
- CERT_GetDefaultCertDB(), &der_cert, NULL, PR_FALSE, PR_TRUE));
- if (!cert.get()) {
- LOG(ERROR) << "Failed to parse certificate.";
- return false;
- }
-
- // Check that the certificate is signed by trusted CA.
- SECItem trusted_ca_key_der_item;
- trusted_ca_key_der_item.type = siDERCertBuffer;
- trusted_ca_key_der_item.data =
- const_cast<unsigned char*>(kTrustedCAPublicKeyDER),
- trusted_ca_key_der_item.len = sizeof(kTrustedCAPublicKeyDER);
- crypto::ScopedSECKEYPublicKey ca_public_key(
- SECKEY_ImportDERPublicKey(&trusted_ca_key_der_item, CKK_RSA));
- SECStatus verified = CERT_VerifySignedDataWithPublicKey(
- &cert->signatureWrap, ca_public_key.get(), NULL);
- if (verified != SECSuccess) {
- LOG(ERROR) << "Certificate is not issued by the trusted CA.";
- return false;
- }
-
- // Check that the device listed in the certificate is correct.
- // Something like evt_e161 001a11ffacdf
- char* common_name = CERT_GetCommonName(&cert->subject);
- if (!common_name) {
- LOG(ERROR) << "Certificate does not have common name.";
- return false;
- }
-
- std::string subject_name(common_name);
- PORT_Free(common_name);
- std::string translated_mac;
- base::RemoveChars(connected_mac, ":", &translated_mac);
- if (!EndsWith(subject_name, translated_mac, false)) {
- LOG(ERROR) << "MAC addresses don't match.";
- return false;
- }
-
- // Make sure that the certificate matches the unsigned data presented.
- // Verify that the |signature| matches |data|.
- crypto::ScopedSECKEYPublicKey public_key(CERT_ExtractPublicKey(cert.get()));
- if (!public_key.get()) {
- LOG(ERROR) << "Unable to extract public key from certificate.";
- return false;
- }
- SECItem signature_item;
- signature_item.type = siBuffer;
- signature_item.data =
- reinterpret_cast<unsigned char*>(const_cast<char*>(signature.c_str()));
- signature_item.len = static_cast<unsigned int>(signature.size());
- verified = VFY_VerifyDataDirect(
- reinterpret_cast<unsigned char*>(const_cast<char*>(data.c_str())),
- data.size(),
- public_key.get(),
- &signature_item,
- SEC_OID_PKCS1_RSA_ENCRYPTION,
- SEC_OID_SHA1,
- NULL,
- NULL);
- if (verified != SECSuccess) {
- LOG(ERROR) << "Signed blobs did not match.";
- return false;
- }
- return true;
-}
-
-bool NetworkingPrivateCrypto::EncryptByteString(
- const std::vector<uint8>& pub_key_der,
- const std::string& data,
- std::vector<uint8>* encrypted_output) {
- crypto::EnsureNSSInit();
-
- SECItem pub_key_der_item;
- pub_key_der_item.type = siDERCertBuffer;
- pub_key_der_item.data = const_cast<unsigned char*>(pub_key_der.data());
- pub_key_der_item.len = pub_key_der.size();
-
- crypto::ScopedSECKEYPublicKey public_key(
- SECKEY_ImportDERPublicKey(&pub_key_der_item, CKK_RSA));
- if (!public_key.get()) {
- LOG(ERROR) << "Failed to parse public key.";
- return false;
- }
-
- size_t encrypted_length = SECKEY_PublicKeyStrength(public_key.get());
- // RSAES is defined as operating on messages up to a length of k - 11, where
- // k is the octet length of the RSA modulus.
- if (encrypted_length < data.size() + 11) {
- LOG(ERROR) << "Too much data to encrypt.";
- return false;
- }
-
- scoped_ptr<unsigned char[]> rsa_output(new unsigned char[encrypted_length]);
- SECStatus encrypted = PK11_PubEncryptPKCS1(
- public_key.get(),
- rsa_output.get(),
- reinterpret_cast<unsigned char*>(const_cast<char*>(data.data())),
- data.length(),
- NULL);
- if (encrypted != SECSuccess) {
- LOG(ERROR) << "Error during encryption.";
- return false;
- }
- encrypted_output->assign(rsa_output.get(),
- rsa_output.get() + encrypted_length);
- return true;
-}
-
-bool NetworkingPrivateCrypto::DecryptByteString(
- const std::string& private_key_pem,
- const std::vector<uint8>& encrypted_data,
- std::string* decrypted_output) {
- crypto::EnsureNSSInit();
-
- std::vector<uint8> private_key_data;
- if (!GetDERFromPEM(private_key_pem, "PRIVATE KEY", &private_key_data)) {
- LOG(ERROR) << "Failed to parse private key PEM.";
- return false;
- }
- scoped_ptr<crypto::RSAPrivateKey> private_key(
- crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(private_key_data));
- if (!private_key || !private_key->public_key()) {
- LOG(ERROR) << "Failed to parse private key DER.";
- return false;
- }
+const size_t kTrustedCAPublicKeyDERLength = sizeof(kTrustedCAPublicKeyDER);
- size_t encrypted_length = SECKEY_SignatureLen(private_key->public_key());
- scoped_ptr<unsigned char[]> rsa_output(new unsigned char[encrypted_length]);
- unsigned int output_length = 0;
- SECStatus decrypted =
- PK11_PrivDecryptPKCS1(private_key->key(),
- rsa_output.get(),
- &output_length,
- encrypted_length,
- const_cast<unsigned char*>(encrypted_data.data()),
- encrypted_data.size());
- if (decrypted != SECSuccess) {
- LOG(ERROR) << "Error during decryption.";
- return false;
- }
- decrypted_output->assign(reinterpret_cast<char*>(rsa_output.get()),
- output_length);
- return true;
-}
+} // namespace networking_private_crypto
projects / platform / framework / web / crosswalk.git / blobdiff