md5

问题 I want to compute an md5 hash not of a string, but of an entire data structure. I understand the mechanics of a way to do this (dispatch on the type of the value, canonicalize dictionary key order and other randomness, recurse into sub-values, etc). But it seems like the kind of operation that would be generally useful, so I'm surprised I need to roll this myself. Is there some simpler way in Python to achieve this? UPDATE: pickle has been suggested, and it's a good idea, but pickling doesn't

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Forgot Password: what is the best method of implementing a forgot password function? I'm programming a community website. I want to build a "forgot my password" feature. Looking around at different sites, I've found they employ one of three options : send the user an email with a link to a unique, hidden URL that allows him to change his password (Gmail and Amazon) send the user an email with a new, randomly

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 3 years ago . Im new at coding so Maybe I've missed the point of what md5 is about. But from what' i've experienced MD5 encryption is "static" for each word. By static i mean you will always find the same result for example md5("hello"). And this makes me think that is is highly reversible

问题 I have a simple android client which needs to 'talk' to a simple C# HTTP listener. I want to provide a basic level of authentication by passing username/password in POST requests. MD5 hashing is trivial in C# and provides enough security for my needs but I can't seem to find how to do this at the android end. EDIT: Just to address the concerns raised about MD5 weakness - the C# server runs on the PCs of the users of my android client. In many cases, they'll be accessing the server using wi-fi

问题 i thought, that it is impossible to decode md5 hashes, but i found tools, which decode them here. but i have no idea, how they do it in such a short period of time(it takes about a second). Help me please to understand it. Thanks 回答1: It doesn't decode an MD5 hash. It uses what's called a rainbow table... That's why it's so important to use salted hashes instead of storing the hash directly... 回答2: It is impossible to decode an MD5 hash as it is a one way algorithm, they will have a database

问题 i thought, that it is impossible to decode md5 hashes, but i found tools, which decode them here. but i have no idea, how they do it in such a short period of time(it takes about a second). Help me please to understand it. Thanks 回答1: It doesn't decode an MD5 hash. It uses what's called a rainbow table... That's why it's so important to use salted hashes instead of storing the hash directly... 回答2: It is impossible to decode an MD5 hash as it is a one way algorithm, they will have a database

问题 I have a friend which is a white hat hacker. He says that md5 is not really that bad and actually is really secure, just if we use it properly. I believe that he is right. As I know, there is 3 ways to break hashes: Using Rainbow tables (Which can be secured against by a long/random salt) Collision (Which can be prevented by multiple salts or hashes - as in example bellow) Generation time (Which is not much important if we use a long enough salt value per each user - AFAIK) I and my friend

问题 Is there any simple way of generating (and checking) MD5 checksums of a list of files in Python? (I have a small program I'm working on, and I'd like to confirm the checksums of the files). 回答1: You can use hashlib.md5() Note that sometimes you won't be able to fit the whole file in memory. In that case, you'll have to read chunks of 4096 bytes sequentially and feed them to the Md5 function: def md5(fname): hash_md5 = hashlib.md5() with open(fname, "rb") as f: for chunk in iter(lambda: f.read

问题 Is there a "semi-portable" way to get the md5() or the sha1() of an entire row? (Or better, of an entire group of rows ordered by all their fields, i.e. order by 1,2,3,...,n )? Unfortunately not all DBs are PostgreSQL... I have to deal with at least microsoft SQL server, Sybase, and Oracle. Ideally, I'd like to have an aggregator (server side) and use it to detect changes in groups of rows. For example, in tables that have some timestamp column, I'd like to store a unique signature for, say,

问题 I would like to create a login application using PHP and phpmyadmin databases and want the password to be encrypted so is there another type than md5() and password() to encrypt text? what the difference between md5() and password()? what is the better betweeb md5() and password()? Thank you, hopefully can be benefit to other *edit I Prefer 1 way hash method for this one :) 回答1: All the answers you can find in the official documentation. Please always start with that before asking questions.