在iOS中从字节数组中设置AES密钥

Question

我的服务给了我一个密钥作为字节数组。例如：

(byte) 0x16, (byte) 0xBB, (byte) 0xAB, (byte) 0xEA, (byte) 0x85, (byte) 0xA7,(byte) 0xD4, (byte) 0xE5, (byte) 0x2F, (byte) 0x7F, (byte) 0x28, (byte) 0x4C, (byte) 0x96, (byte) 0x7D,

在iOS中，AES密钥是一个字符串。我试图将此字节数组用作iOS中的键。

Answer 1

这个OC代码------

//加密AES NOPadding - （NSData *）AES128Encrypt {

NSUInteger dataLength = [self length];
size_t bufferSize = dataLength + kCCBlockSizeAES128;
void *buffer = malloc(bufferSize);
size_t numBytesEncrypted = 0;
//  Encrypt Key
Byte keybyte[]={0x77,0x24,0x56,0xf2,0xa7,0x66,0x4c,0xf3,0x39, 0x2c,0x35,0x97,0xe9,0x3e,0x57,0x47};
NSData *keyData=[[NSData alloc]initWithBytes:keybyte length:16];
const void *vKey = (const void *)[keyData bytes];
//Encrypt Iv
Byte ivbyte[]={0x24,0x4e,0x6d,0x8a,0x56,0xac,0x87,0x91,
    0x24,0x43,0x2d,0x8b,0x6c,0xbc,0xa2,0xc4};
NSData *IvData=[[NSData alloc]initWithBytes:ivbyte length:16];
const void *vIv = (const void *)[IvData bytes];


CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,
                                      kCCAlgorithmAES128,
                                      0x0000,
                                      vKey,
                                      kCCBlockSizeAES128,
                                      vIv,
                                      [self bytes],
                                      dataLength,
                                      buffer,
                                      bufferSize,
                                      &numBytesEncrypted);
if (cryptStatus == kCCSuccess) {
    return [NSData dataWithBytesNoCopy:buffer length:numBytesEncrypted];
}
free(buffer);
return nil;

}