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60 lines
2.0 KiB
60 lines
2.0 KiB
// Copyright 2019 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef UTIL_CRYPTO_CERTIFICATE_UTILS_H_
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#define UTIL_CRYPTO_CERTIFICATE_UTILS_H_
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include <stdint.h>
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#include <chrono>
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#include <string>
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#include <vector>
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#include "absl/strings/string_view.h"
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#include "platform/api/time.h"
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#include "platform/base/error.h"
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#include "util/crypto/rsa_private_key.h"
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namespace openscreen {
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// Generates a new RSA key pair with bit width |key_bits|.
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bssl::UniquePtr<EVP_PKEY> GenerateRsaKeyPair(int key_bits = 2048);
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// Creates a new X509 certificate having the given |name| and |duration| until
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// expiration, and based on the given |key_pair|. If |issuer| and |issuer_key|
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// are provided, they are used to set the issuer information, otherwise it will
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// be self-signed. |make_ca| determines whether additional extensions are added
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// to make it a valid certificate authority cert.
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ErrorOr<bssl::UniquePtr<X509>> CreateSelfSignedX509Certificate(
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absl::string_view name,
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std::chrono::seconds duration,
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const EVP_PKEY& key_pair,
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std::chrono::seconds time_since_unix_epoch = GetWallTimeSinceUnixEpoch(),
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bool make_ca = false,
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X509* issuer = nullptr,
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EVP_PKEY* issuer_key = nullptr);
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// Exports the given X509 certificate as its DER-encoded binary form.
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ErrorOr<std::vector<uint8_t>> ExportX509CertificateToDer(
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const X509& certificate);
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// Parses a DER-encoded X509 certificate from its binary form.
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ErrorOr<bssl::UniquePtr<X509>> ImportCertificate(const uint8_t* der_x509_cert,
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int der_x509_cert_length);
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// Parses a DER-encoded RSAPrivateKey (RFC 3447).
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ErrorOr<bssl::UniquePtr<EVP_PKEY>> ImportRSAPrivateKey(
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const uint8_t* der_rsa_private_key,
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int key_length);
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std::string GetSpkiTlv(X509* cert);
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ErrorOr<uint64_t> ParseDerUint64(const ASN1_INTEGER* asn1int);
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} // namespace openscreen
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#endif // UTIL_CRYPTO_CERTIFICATE_UTILS_H_
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