问题描述

IOS RSA 加密 不用openssl可以么 这个案例可靠么 这个案例可靠么

这个案例我是从code4app下载的。大家请看

// RSA.h
//
// Copyright (c) 2012 scott ban
//
// Permission is hereby granted free of charge to any person obtaining a copy
// of this software and associated documentation files (the ""Software"") to deal
// in the Software without restriction including without limitation the rights
// to use copy modify merge publish distribute sublicense and/or sell
// copies of the Software and to permit persons to whom the Software is
// furnished to do so subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED ""AS IS"" WITHOUT WARRANTY OF ANY KIND EXPRESS OR
// IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM DAMAGES OR OTHER
// LIABILITY WHETHER IN AN ACTION OF CONTRACT TORT OR OTHERWISE ARISING FROM
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#import

typedef void (^GenerateSuccessBlock)(void);

@interface RSA : NSObject{
@private
NSData * publicTag;
NSData * privateTag;
NSOperationQueue * cryptoQueue;
GenerateSuccessBlock success;
}

@property (nonatomicreadonly) SecKeyRef publicKeyRef;
@property (nonatomicreadonly) SecKeyRef privateKeyRef;
@property (nonatomicreadonly) NSData *publicKeyBits;
@property (nonatomicreadonly) NSData *privateKeyBits;

• (id)shareInstance;
• (void)generateKeyPairRSACompleteBlock:(GenerateSuccessBlock)_success;
• (NSData *)RSA_EncryptUsingPublicKeyWithData:(NSData *)data;
• (NSData )RSA_EncryptUsingPrivateKeyWithData:(NSData)data;
• (NSData *)RSA_DecryptUsingPublicKeyWithData:(NSData *)data;
• (NSData )RSA_DecryptUsingPrivateKeyWithData:(NSData)data;

@end
// RSA.m
//
// Copyright (c) 2012 scott ban
//
// Permission is hereby granted free of charge to any person obtaining a copy
// of this software and associated documentation files (the ""Software"") to deal
// in the Software without restriction including without limitation the rights
// to use copy modify merge publish distribute sublicense and/or sell
// copies of the Software and to permit persons to whom the Software is
// furnished to do so subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED ""AS IS"" WITHOUT WARRANTY OF ANY KIND EXPRESS OR
// IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM DAMAGES OR OTHER
// LIABILITY WHETHER IN AN ACTION OF CONTRACT TORT OR OTHERWISE ARISING FROM
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#import ""RSA.h""

uint8_t *plainBuffer;
uint8_t *cipherBuffer;
uint8_t *decryptedBuffer;

const size_t BUFFER_SIZE = 32;
const size_t CIPHER_BUFFER_SIZE = 1024;
const uint32_t PADDING = kSecPaddingPKCS1;
const size_t kSecAttrKeySizeInBitsLength = 2024;

//static const UInt8 publicKeyIdentifier[] = ""com.apple.sample.publickey222"";
//static const UInt8 privateKeyIdentifier[] = ""com.apple.sample.privatekey111"";
/**

• 公钥*/static const UInt8 publicKeyIdentifier[] = ""ba3a3302ed9e00d47775582ced852ac325dd8e79702baf754bd1b0a9e14857f0dee560f8f951b118f3331c661e6fd5ce7c9060a0e3bc2afefacf14dd81797610a074f86a5b725cba12daa8ada22d944d5a30b993a6145b4672f37e5c58e4ce563e79ed7bb485abb129df969ced30051537d5bd6ac70d1be3ddfa834100efc055"";static const UInt8 privateKeyIdentifier[] = ""com.apple.sample.privatekey111"";

#
[privateKeyAttr setObject:privateTag forKey:(__bridge id)kSecAttrApplicationTag];
// See SecKey.h to set other flag values.
cKey length];

NSMutableData *bits = [NSMutableData dataWithLength:keyBufferSize];OSStatus sanityCheck = SecKeyDecrypt(key                                     kSecPaddingPKCS1                                     (const uint8_t *) [wrappedSymmetricKey bytes]                                     cipherBufferSize                                     [bits mutableBytes]                                     &keyBufferSize);NSAssert(sanityCheck == noErr @""Error decrypting OSStatus == %ld."" sanityCheck);[bits setLength:keyBufferSize];return bits;

}

• (NSData *) RSA_EncryptUsingPublicKeyWithData:(NSData *)data{
  return [self rsaEncryptWithData:data usingPublicKey:YES];
  }
• (NSData ) RSA_EncryptUsingPrivateKeyWithData:(NSData)data{
  return [self rsaEncryptWithData:data usingPublicKey:NO];
  }
• (NSData *) RSA_DecryptUsingPublicKeyWithData:(NSData *)data{
  return [self rsaDecryptWithData:data usingPublicKey:YES];
  }
• (NSData ) RSA_DecryptUsingPrivateKeyWithData:(NSData)data{
  return [self rsaDecryptWithData:data usingPublicKey:NO];
  }

@end

IOS RSA 加密 这个案例我是从code4app下载的，但是里面不用openssl生成的.pem文件作为公钥，
而是直接用/** * 公钥 */ static const UInt8 publicKeyIdentifier[] = ""ba3a3302ed9e00d47775582ced852ac325dd8e79702baf754bd1b0a9e14857f0dee560f8f951b118f3331c661e6fd5ce7c9060a0e3bc2afefacf14dd81797610a074f86a5b725cba12daa8ada22d944d5a30b993a6145b4672f37e5c58e4ce563e79ed7bb485abb129df969ced30051537d5bd6ac70d1be3ddfa834100efc055""; static const UInt8 privateKeyIdentifier[] = ""com.apple.sample.privatekey111"";为什么
这个用公钥么，我表示疑惑。。。这个案例可行么，，。。