字符串base64加密解密

Posted 2020-09-20 偶阵雨ss33

//base64加密(字符串经过base64加密之后得到的新的字符串)
NSData *data =   
  [@"ios Developer Tips" dataUsingEncoding:NSUTF8StringEncoding];  

  NSString *base64Encoded = [data base64EncodedStringWithOptions:0];

//base64解密(base64加密的字符串经过base64解密之后得到的新的字符串)

NSData *nsdataDecoded = [base64Data initWithBase64EncodedString:base64Encoded options:0]; 
NSString *str = [[NSString alloc] initWithData:nsdataDecoded encoding:NSUTF8StringEncoding];