md5

问题 How can I use one command line to provide a list of all files between a certain size and then format the file with name, md5 has and the file size. The example output should be file1.*** MD5 value size file2.*** MD5 value size etc. Ive tried the following but it displays the md5 on a separate line find 'directory' -size +30000c -size -50000c | while read filename do ls -l "$filename" | awk '{print $9 "\t" $5}' md5sum "$filename" | awk '{print $1}' done It outputs the follow with the MD5 on a

问题 How can I use one command line to provide a list of all files between a certain size and then format the file with name, md5 has and the file size. The example output should be file1.*** MD5 value size file2.*** MD5 value size etc. Ive tried the following but it displays the md5 on a separate line find 'directory' -size +30000c -size -50000c | while read filename do ls -l "$filename" | awk '{print $9 "\t" $5}' md5sum "$filename" | awk '{print $1}' done It outputs the follow with the MD5 on a

问题 I'm making a program that has a login. Is there any way to encrypt the normal password so that it can't be read in the data base? I've done a trick but I'm not content with it. What I did was to get the first, mid, and last char only and convert each char into ascii. Is there a way to convert all the text into ascii or something like md5/hash in php? I'm really sorry about this thing, I haven't mentioned that my project is a VB6 project. 回答1: Don't use MD5 to store hashed passwords! See stuff

问题 I have uploaded a file 14MB to S3 in chunks (5MB) each and also using spark-md5 calculated the hash of each chunk. The individual hash of each chunk (generated by spark-md5) is matching with ETag of each chunk uploaded to S3. But the ETag hash generated by doing full upload to S3 is not matching with locally calculated hash generated by spark-md5. Below are the steps for local hash: Generate hash (generated by spark-md5) of each chunk Join the hash of each chunk Convert to hex Calculated hash

问题 I implemented an MD5 formula as mentioned here: Hash of a cell text in Google Spreadsheet. function MD5 (input) { var rawHash = Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, input); Utilities.sleep(100) var txtHash = ''; for (i = 0; i < rawHash.length; i++) { var hashVal = rawHash[i]; if (hashVal < 0) { hashVal += 256; } if (hashVal.toString(16).length == 1) { txtHash += '0'; } txtHash += hashVal.toString(16); } return txtHash; } Now I want to run this with an ARRAYFORMULA but I can

问题 I installed python 3.6.3 on my server yesterday (ubuntu 14.04), and now I cannot run python 2.7 (in the virtual envs and on the 'main env'). I've been looking around google for this, without success. I tried to re-intall openssl as I red. Can anyone help me ? I'm going mad. ---> Here is the message whenever i tried to execute a python script (or pip): *ERROR:root:code for hash md5 was not found. Traceback (most recent call last): File "/usr/local/lib/python2.7/hashlib.py", line 147, in

问题 I'm trying to set up a login system, but I can't solve one problem: PHP is giving me an other output with md5(); than MySQL... For example, in PHP: $password = md5("brickmasterj"); return $password; Returns: 3aa7b18f304e2e2a088cfd197351cfa8 But the MySQL equivalent gives me a shorter version: 3aa7b18f304e2e2a08 What's the problem? And how do I work with this while checking passwords? 回答1: I guess the problem in the length of column of your table, set the length of password field to at least

问题 I would like to create a sql query (or plpgsql) that will md5() all given rows regardless of type. However, below, if one is null then the hash is null: UPDATE thetable SET hash = md5(accountid || accounttype || createdby || editedby); I am later using the hash to compare uniqueness so null hash does not work for this use case. The problem was the way it handles concatenating nulls. For example: thedatabase=# SELECT accountid || accounttype || createdby || editedby FROM thetable LIMIT 5;

问题 If counting from 1 to X, where X is the first number to have an md5 collision with a previous number, what number is X? I want to know if I'm using md5 for serial numbers, how many units I can expect to be able to enumerate before I get a collision. 回答1: Theoretically, you can expect collisions for X around 2 64 . For a hash function with an output of n bits, first collisions appear when you have accumulated about 2 n/2 outputs (it does not matter how you choose the inputs; sequential integer

问题 If counting from 1 to X, where X is the first number to have an md5 collision with a previous number, what number is X? I want to know if I'm using md5 for serial numbers, how many units I can expect to be able to enumerate before I get a collision. 回答1: Theoretically, you can expect collisions for X around 2 64 . For a hash function with an output of n bits, first collisions appear when you have accumulated about 2 n/2 outputs (it does not matter how you choose the inputs; sequential integer