在iphone中使用MD5加密很简单,只需引入<CommonCrypto/CommonCryptor.h>,加上以下代码:
+(NSString *)md5:(NSString *)str { const char *cStr = [str UTF8String]; unsigned char result[16]; CC_MD5( cStr, strlen(cStr), result ); return [NSString stringWithFormat: @"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[10], result[11], result[12], result[13], result[14], result[15] ]; }