73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
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// Copyright 2017 The Chromium Authors
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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 NET_CERT_PKI_SIMPLE_PATH_BUILDER_DELEGATE_H_
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#define NET_CERT_PKI_SIMPLE_PATH_BUILDER_DELEGATE_H_
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#include <stddef.h>
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#include "net/base/net_export.h"
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#include "net/cert/pki/path_builder.h"
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#include "net/cert/pki/signature_algorithm.h"
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#include "net/cert/pki/signature_verify_cache.h"
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namespace net {
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class CertErrors;
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// SimplePathBuilderDelegate is an implementation of CertPathBuilderDelegate
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// that uses some default policies:
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//
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// * RSA public keys must be >= |min_rsa_modulus_length_bits|.
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// * Signature algorithm can be RSA PKCS#1, RSASSA-PSS or ECDSA
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// * Digest algorithm can be SHA256, SHA348 or SHA512.
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// * If the |digest_policy| was set to kAllowSha1, then SHA1 is
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// additionally accepted.
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// * EC named curve can be P-256, P-384, P-521.
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class NET_EXPORT SimplePathBuilderDelegate : public CertPathBuilderDelegate {
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public:
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enum class DigestPolicy {
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// Accepts digests of SHA256, SHA348 or SHA512
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kStrong,
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// Accepts everything that kStrong does, plus SHA1.
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kWeakAllowSha1,
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kMaxValue = kWeakAllowSha1
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};
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// Error emitted when a public key is rejected because it is an RSA key with a
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// modulus size that is too small.
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static const CertErrorId kRsaModulusTooSmall;
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SimplePathBuilderDelegate(size_t min_rsa_modulus_length_bits,
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DigestPolicy digest_policy);
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// Accepts RSA PKCS#1, RSASSA-PSS or ECDA using any of the SHA* digests
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// (including SHA1).
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bool IsSignatureAlgorithmAcceptable(SignatureAlgorithm signature_algorithm,
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CertErrors* errors) override;
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// Requires RSA keys be >= |min_rsa_modulus_length_bits_|.
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bool IsPublicKeyAcceptable(EVP_PKEY* public_key, CertErrors* errors) override;
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// No-op implementation.
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void CheckPathAfterVerification(const CertPathBuilder& path_builder,
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CertPathBuilderResultPath* path) override;
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// No-op implementation.
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bool IsDeadlineExpired() override;
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// No-op implementation.
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SignatureVerifyCache* GetVerifyCache() override;
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private:
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const size_t min_rsa_modulus_length_bits_;
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const DigestPolicy digest_policy_;
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};
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} // namespace net
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#endif // NET_CERT_PKI_SIMPLE_PATH_BUILDER_DELEGATE_H_
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