为什么 SecItemAdd return me -50(无效参数)
Why SecItemAdd return me -50 (invalid params)
我想将值 "MyKeyValue" 存储在钥匙串中,我这样做了 :
NSData* key = [@"MyKeyValue" dataUsingEncoding:NSUTF8StringEncoding];
NSData* tag = [@"com.example.MyKey" dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary* addquery = @{ (id)kSecValueRef: key,
(id)kSecClass: (id)kSecClassKey,
(id)kSecAttrApplicationTag: tag,
};
OSStatus status = SecItemAdd((__bridge CFDictionaryRef)addquery, NULL);
但这失败了,错误为 -50(参数无效)
我做错了什么?
我想在钥匙串中存储一个字符串,如果用户卸载并重新安装我的应用程序,可以检索该字符串。
错误的发生是因为 kSecValueRef
,根据 Apple 的指南 kSecValueRef
接受可以通过 SecKeyRef
生成的加密密钥,请在下面找到,
NSData* tag = [@"com.example.keys.mykey" dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary* attributes =
@{ (id)kSecAttrKeyType: (id)kSecAttrKeyTypeRSA,
(id)kSecAttrKeySizeInBits: @2048,
(id)kSecPrivateKeyAttrs:
@{ (id)kSecAttrIsPermanent: @YES,
(id)kSecAttrApplicationTag: tag,
},
};
CFErrorRef error = NULL;
SecKeyRef privateKey = SecKeyCreateRandomKey((__bridge CFDictionaryRef)attributes,
&error);
SecKeyRef publicKey = SecKeyCopyPublicKey(privateKey);
NSDictionary* addquery = @{ (id)kSecValueRef: (__bridge id)publicKey,
(id)kSecClass: (id)kSecClassKey,
(id)kSecAttrApplicationTag: tag,
};
OSStatus status = SecItemAdd((__bridge CFDictionaryRef)addquery, NULL);
更多信息请参考Storing Keys in the Keychain
我想将值 "MyKeyValue" 存储在钥匙串中,我这样做了 :
NSData* key = [@"MyKeyValue" dataUsingEncoding:NSUTF8StringEncoding];
NSData* tag = [@"com.example.MyKey" dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary* addquery = @{ (id)kSecValueRef: key,
(id)kSecClass: (id)kSecClassKey,
(id)kSecAttrApplicationTag: tag,
};
OSStatus status = SecItemAdd((__bridge CFDictionaryRef)addquery, NULL);
但这失败了,错误为 -50(参数无效) 我做错了什么?
我想在钥匙串中存储一个字符串,如果用户卸载并重新安装我的应用程序,可以检索该字符串。
错误的发生是因为 kSecValueRef
,根据 Apple 的指南 kSecValueRef
接受可以通过 SecKeyRef
生成的加密密钥,请在下面找到,
NSData* tag = [@"com.example.keys.mykey" dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary* attributes =
@{ (id)kSecAttrKeyType: (id)kSecAttrKeyTypeRSA,
(id)kSecAttrKeySizeInBits: @2048,
(id)kSecPrivateKeyAttrs:
@{ (id)kSecAttrIsPermanent: @YES,
(id)kSecAttrApplicationTag: tag,
},
};
CFErrorRef error = NULL;
SecKeyRef privateKey = SecKeyCreateRandomKey((__bridge CFDictionaryRef)attributes,
&error);
SecKeyRef publicKey = SecKeyCopyPublicKey(privateKey);
NSDictionary* addquery = @{ (id)kSecValueRef: (__bridge id)publicKey,
(id)kSecClass: (id)kSecClassKey,
(id)kSecAttrApplicationTag: tag,
};
OSStatus status = SecItemAdd((__bridge CFDictionaryRef)addquery, NULL);
更多信息请参考Storing Keys in the Keychain