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127 lines
4.0 KiB
Plaintext
127 lines
4.0 KiB
Plaintext
// Copyright 2017 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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// Next MinVersion: 2
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//
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// CertStoreHost is modeled after Android keymaster interface
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// hardware/libhardware/include/hardware/keymaster2.h
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//
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// and must follow the concept if extended in the future.
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// Please keep names in sync as far as it is possible.
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//
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// Enums/structures are modeled after structures from
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// hardware/libhardware/include/hardware/keymaster_defs.h
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//
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module arc.mojom;
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// Describes a keymaster operation result.
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[Extensible]
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enum KeymasterError {
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ERROR_OK = 0,
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ERROR_INVALID_OPERATION_HANDLE = -28,
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ERROR_INVALID_KEY_BLOB = -33,
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ERROR_UNIMPLEMENTED = -100,
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ERROR_UNKNOWN_ERROR = -1000,
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};
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// Enumerates the crypto algorithms supported by Host.
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[Extensible]
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enum Algorithm {
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ALGORITHM_RSA = 1,
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ALGORITHM_EC = 3,
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};
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// Enumerates the digests supported by Host.
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[Extensible]
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enum Digest {
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DIGEST_NONE = 0,
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DIGEST_SHA1 = 2,
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DIGEST_SHA_2_224 = 3,
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DIGEST_SHA_2_256 = 4,
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DIGEST_SHA_2_384 = 5,
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DIGEST_SHA_2_512 = 6,
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};
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// Enumerates the paddings supported by Host.
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[Extensible]
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enum Padding {
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PAD_NONE = 1,
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PAD_RSA_PKCS1_1_5_SIGN = 5,
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};
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// Describes a parameter of client certificate provided by Host.
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union KeyParam {
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Algorithm algorithm;
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Digest digest;
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Padding padding;
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};
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// Describes a client certificate provided by Host.
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// Does not correspond to keymaster type.
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struct Certificate {
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// Nickname/alias of the certificate.
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string alias;
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// PEM-encoded client certificate.
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string cert;
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};
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// Next method ID: 6
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// The interface is modeled after keymaster interface and must follow the format
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// if extended in the future.
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interface CertStoreHost {
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// The helper method, which does not correspond to keymaster interface.
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// It returns a list of Chrome OS corporate usage client certificates if
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// any Android app is whitelisted to use them, otherwise returns an
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// empty list.
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ListCertificates@0() => (array<Certificate> certs);
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// Retrieves key characteristics for the specified key with alias.
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// params is null if any error occurred during retrieval.
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GetKeyCharacteristics@1(string alias)
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=> (KeymasterError error, array<KeyParam>? params);
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// Begins the operation using the specified key with alias and operation
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// parameters (such as algorithm, digest, padding).
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// If all is well, returns ERROR_OK and creates an operation handle which
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// must be passed to subsequent calls to Update(), Finish() or Abort().
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// Currently only signature operations are supported.
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Begin@2(string alias, array<KeyParam> params)
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=> (KeymasterError error, uint64 operation_handle);
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// Provides data to an ongoing cryptographic operation begun with Begin().
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// Returns an amount of data consumed by Update().
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Update@3(uint64 operation_handle, array<uint8> data)
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=> (KeymasterError error, uint32 input_consumed);
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// Finalizes a cryptographic operation begun with Begin() and invalidates
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// operation handle. Retrieves the result (signature). In case of any error,
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// signed_data is null.
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Finish@4(uint64 operation_handle)
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=> (KeymasterError error, array<uint8>? signed_data);
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// Aborts a cryptographic operation begun with Begin(), freeing all internal
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// resources and invalidating operation handle.
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Abort@5(uint64 operation_handle) => (KeymasterError error);
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};
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// Next method ID: 4
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interface CertStoreInstance {
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// DEPRECATED: Please use Init@3 instead.
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InitDeprecated@0(CertStoreHost host_ptr);
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// Establishes full-duplex communication with the host.
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[MinVersion=1] Init@3(CertStoreHost host_ptr) => ();
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// Informs the key permissions are changed: only listed packages are allowed
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// to use exposed certificates.
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OnKeyPermissionsChanged@1(array<string> permissions);
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// Informs the certificates are changed (added, removed or updated):
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// CertStoreInstance must call ListCertficates to update its database.
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OnCertificatesChanged@2();
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};
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