| /** |
| * Copyright (c) 2022 Project CHIP Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * Utilities for working with Matter certificates. |
| */ |
| |
| #import <Foundation/Foundation.h> |
| |
| typedef NSData * MTRCertificateDERBytes; |
| typedef NSData * MTRCertificateTLVBytes; |
| |
| NS_ASSUME_NONNULL_BEGIN |
| |
| @protocol MTRKeypair; |
| |
| @interface MTRCertificates : NSObject |
| |
| /** |
| * Create a root (self-signed) X.509 DER encoded certificate that has the |
| * right fields to be a valid Matter root certificate. |
| * |
| * If issuerID is nil, a random issuer id is generated. Otherwise the provided |
| * issuer id is used. |
| * |
| * If fabricID is not nil, it will be included in the subject DN of the |
| * certificate. In this case it must be a valid Matter fabric id. |
| * |
| * On failure returns nil and if "error" is not null sets *error to the relevant |
| * error. |
| */ |
| + (MTRCertificateDERBytes _Nullable)createRootCertificate:(id<MTRKeypair>)keypair |
| issuerID:(NSNumber * _Nullable)issuerID |
| fabricID:(NSNumber * _Nullable)fabricID |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error |
| MTR_NEWLY_AVAILABLE; |
| |
| /** |
| * Create an intermediate X.509 DER encoded certificate that has the |
| * right fields to be a valid Matter intermediate certificate. |
| * |
| * If issuerID is nil, a random issuer id is generated. Otherwise the provided |
| * issuer id is used. |
| * |
| * If fabricID is not nil, it will be included in the subject DN of the |
| * certificate. In this case it must be a valid Matter fabric id. |
| * |
| * On failure returns nil and if "error" is not null sets *error to the relevant |
| * error. |
| */ |
| + (MTRCertificateDERBytes _Nullable)createIntermediateCertificate:(id<MTRKeypair>)rootKeypair |
| rootCertificate:(MTRCertificateDERBytes)rootCertificate |
| intermediatePublicKey:(SecKeyRef)intermediatePublicKey |
| issuerID:(NSNumber * _Nullable)issuerID |
| fabricID:(NSNumber * _Nullable)fabricID |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error |
| MTR_NEWLY_AVAILABLE; |
| |
| /** |
| * Create an X.509 DER encoded certificate that has the |
| * right fields to be a valid Matter operational certificate. |
| * |
| * signingKeypair and signingCertificate are the root or intermediate that is |
| * signing the operational certificate. |
| * |
| * nodeID and fabricID are expected to be 64-bit unsigned integers. |
| * |
| * nodeID must be a valid Matter operational node id. |
| * |
| * fabricID must be a valid Matter fabric id. |
| * |
| * caseAuthenticatedTags may be nil to indicate no CASE Authenticated Tags |
| * should be used. If caseAuthenticatedTags is not nil, it must have length at |
| * most 3 and the values in the array are expected to be 32-bit unsigned Case |
| * Authenticated Tag values. |
| * |
| * On failure returns nil and if "error" is not null sets *error to the relevant |
| * error. |
| */ |
| + (MTRCertificateDERBytes _Nullable)createOperationalCertificate:(id<MTRKeypair>)signingKeypair |
| signingCertificate:(MTRCertificateDERBytes)signingCertificate |
| operationalPublicKey:(SecKeyRef)operationalPublicKey |
| fabricID:(NSNumber *)fabricID |
| nodeID:(NSNumber *)nodeID |
| caseAuthenticatedTags:(NSArray<NSNumber *> * _Nullable)caseAuthenticatedTags |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error |
| MTR_NEWLY_AVAILABLE; |
| |
| /** |
| * Check whether the given keypair's public key matches the given certificate's |
| * public key. The certificate is expected to be an X.509 DER encoded |
| * certificate. |
| * |
| * Will return NO on failures to extract public keys from the objects. |
| */ |
| + (BOOL)keypair:(id<MTRKeypair>)keypair matchesCertificate:(NSData *)certificate; |
| |
| /** |
| * Check whether two X.509 DER encoded certificates are equivalent, in the sense |
| * of having the same public key and the same subject DN. Returns NO if public |
| * keys or subject DNs cannot be extracted from the certificates. |
| */ |
| + (BOOL)isCertificate:(MTRCertificateDERBytes)certificate1 equalTo:(MTRCertificateDERBytes)certificate2; |
| |
| /** |
| * Generate a PKCS#10 certificate signing request from a MTRKeypair. This can |
| * then be used to request an operational or ICA certificate from an external |
| * certificate authority. |
| * |
| * The CSR will have the subject OU DN set to 'CSA', because omitting all |
| * identifying information altogether often trips up CSR parsing code. The CA |
| * being used should expect this and ignore the request subject, producing a |
| * subject that matches the rules for Matter certificates. |
| * |
| * On failure returns nil and if "error" is not null sets *error to the relevant |
| * error. |
| */ |
| + (NSData * _Nullable)createCertificateSigningRequest:(id<MTRKeypair>)keypair |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error; |
| |
| /** |
| * Convert the given X.509v3 DER encoded certificate to the Matter certificate |
| * format. |
| * |
| * Returns nil if the conversion fails (e.g. if the input data cannot be parsed |
| * as a DER encoded X.509 certificate, or if the certificate cannot be |
| * represented in the Matter certificate format). |
| */ |
| + (MTRCertificateTLVBytes _Nullable)convertX509Certificate:(MTRCertificateDERBytes)x509Certificate; |
| |
| /** |
| * Convert the given Matter TLV encoded certificate to the X.509v3 DER encoded |
| * format. |
| * |
| * Returns nil if the conversion fails (e.g. if the input data cannot be parsed |
| * as a Matter TLV encoded certificate, or if the certificate cannot be |
| * represented in the X.509v3 DER format). |
| */ |
| + (MTRCertificateDERBytes _Nullable)convertMatterCertificate:(MTRCertificateTLVBytes)matterCertificate MTR_NEWLY_AVAILABLE; |
| |
| @end |
| |
| @interface MTRCertificates (Deprecated) |
| |
| + (nullable NSData *)generateRootCertificate:(id<MTRKeypair>)keypair |
| issuerId:(nullable NSNumber *)issuerId |
| fabricId:(nullable NSNumber *)fabricId |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error |
| MTR_NEWLY_DEPRECATED("Please use createRootCertificate:issuerID:fabricID:error:"); |
| |
| + (nullable NSData *)generateIntermediateCertificate:(id<MTRKeypair>)rootKeypair |
| rootCertificate:(NSData *)rootCertificate |
| intermediatePublicKey:(SecKeyRef)intermediatePublicKey |
| issuerId:(nullable NSNumber *)issuerId |
| fabricId:(nullable NSNumber *)fabricId |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error |
| MTR_NEWLY_DEPRECATED("Please use createIntermediateCertificate:rootCertificate:intermediatePublicKey:issuerID:fabricID:error:"); |
| |
| + (nullable NSData *)generateOperationalCertificate:(id<MTRKeypair>)signingKeypair |
| signingCertificate:(NSData *)signingCertificate |
| operationalPublicKey:(SecKeyRef)operationalPublicKey |
| fabricId:(NSNumber *)fabricId |
| nodeId:(NSNumber *)nodeId |
| caseAuthenticatedTags:(NSArray<NSNumber *> * _Nullable)caseAuthenticatedTags |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error |
| MTR_NEWLY_DEPRECATED( |
| "Plase use " |
| "createOperationalCertificate:signingCertificate:operationalPublicKey:fabricID:nodeID:caseAuthenticatedTags:error:"); |
| |
| + (nullable NSData *)generateCertificateSigningRequest:(id<MTRKeypair>)keypair |
| error:(NSError * __autoreleasing _Nullable * _Nullable)error |
| MTR_NEWLY_DEPRECATED("Please use createCertificateSigningRequest:error:"); |
| |
| @end |
| |
| NS_ASSUME_NONNULL_END |
