質問編集履歴
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記載ミスがありました。
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File without changes
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@@ -6,6 +6,7 @@
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```ObjectiveC
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static const uint8_t privateKeyIdentifier[] = iOSPrivateKey;
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+
NSData *privateTag = [[NSData alloc] initWithBytes:privateKeyIdentifier length:sizeof(privateKeyIdentifier)];
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```
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@@ -30,25 +31,8 @@
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NSData* privateData = (__bridge_transfer NSData *)attributes;
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```
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###試したこと
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```Swift
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let query: [String: Any] = [kSecClass as String: kSecClassKey, kSecAttrKeyType as String: kSecAttrKeyTypeRSA, kSecAttrApplicationTag as String: keyTag, kSecReturnRef as String: true]
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var keyPtr: AnyObject?
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let result = SecItemCopyMatching(query as CFDictionary, &keyPtr)
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switch result {
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case noErr:
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let key = CFBridgingRetain(keyPtr!) as! SecKey
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return key
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case errSecItemNotFound:
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return nil
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default:
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print("Error occurred: \(result)")
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return nil
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}
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```
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###補足情報(言語/FW/ツール等のバージョンなど)
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・Xcode 8.2.1
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・Swift 3
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