1
+ (NSData *)doCipher:(NSData *)dataIn
iv:(NSData *)iv
key:(NSData *)symmetricKey
context:(CCOperation)encryptOrDecrypt // kCCEncrypt or kCCDecrypt
error:(NSError **)error
{
CCCryptorStatus ccStatus = kCCSuccess;
size_t cryptBytes = 0;
NSMutableData *dataOut = [NSMutableData dataWithLength:dataIn.length + kCCBlockSizeAES128];
ccStatus = CCCrypt(encryptOrDecrypt,
kCCAlgorithmAES128,
0, //kCCOptionPKCS7Padding,
symmetricKey.bytes,
kCCKeySizeAES128,
iv.bytes,
dataIn.bytes,
dataIn.length,
dataOut.mutableBytes,
dataOut.length,
&cryptBytes);
if (ccStatus == kCCSuccess) {
dataOut.length = cryptBytes;
}
else {
if (error) {
*error = [NSError errorWithDomain:@"kEncryptionError"
code:ccStatus
userInfo:nil];
}
dataOut = nil;
}
return dataOut;
}
我有DATAIN为154个字节的数据,密钥和IV具有16个字节的数据时,我做它给-4303错误。(AES128随着CBC在IOS)加密AES 128与CBC在IOS
对齐错误意味着尺寸有问题。请检查我的答案以获取更多详细信息:https://stackoverflow.com/questions/35921254/aes-ecb-ios-encrypt/48559334#48559334 – Joanne