sha1

Git - finding a filename from a SHA1

由 ♀尐吖头ヾ 提交于 2019-11-26 21:56:10
I added a file to the index with: git add somefile.txt I then got the SHA1 for this file with: git hash-object somefile.txt I now have a SHA1 and I would like to retrieve the filename of the object in the index using the SHA1. git show 5a5bf28dcd7944991944cc5076c7525439830122 This command returns the file contents but not the name of the file. How do I get the full filename and path back from the SHA1? There's no such direct mapping in git as the name of the file is part of the tree object that contains the file, not of the blob object that is the file's contents. It's not a usual operation to

HMAC SHA1 ColdFusion

由 时光怂恿深爱的人放手 提交于 2019-11-26 21:24:23
问题 Please help! I have been pulling out my hair over this one. :) I have a site that I need to HMAC SHA1 for authentication. It currently works with another language but now I need to move it to ColdFusion. For the life of me I cannot get the strings to match. Any assistance would be much appreciated. Data: https%3A%2F%2Fwww%2Etestwebsite%2Ecom%3Fid%3D5447 Key: 265D5C01D1B4C8FA28DC55C113B4D21005BB2B348859F674977B24E0F37C81B05FAE85FB75EA9CF53ABB9A174C59D98C7A61E2985026D2AA70AE4452A6E3F2F9 Correct

SHA1 collision demo / example

由 两盒软妹~` 提交于 2019-11-26 19:50:47
问题 This question is similar to this, but that one only references MD5 collision demos. Are there any actual SHA1 collision pairs of arbitrary messages known so far ? I'd like to use these to test how various software products (my own one and some third party) deal with it. Doing some Google searches only turned up the oh-so prominent MD5 / SHA0 collisions and some hints on an approach to creating SHA1 collisions but I could not get my hands on any examples. 回答1: The first known collision has now

How do I do a SHA1 File Checksum in C#?

由 回眸只為那壹抹淺笑 提交于 2019-11-26 19:41:33
How do I use the SHA1CryptoServiceProvider() on a file to create a SHA1 Checksum of the file? using (FileStream fs = new FileStream(@"C:\file\location", FileMode.Open)) using (BufferedStream bs = new BufferedStream(fs)) { using (SHA1Managed sha1 = new SHA1Managed()) { byte[] hash = sha1.ComputeHash(bs); StringBuilder formatted = new StringBuilder(2 * hash.Length); foreach (byte b in hash) { formatted.AppendFormat("{0:X2}", b); } } } formatted contains the string representation of the SHA-1 hash. Also, by using a FileStream instead of a byte buffer, ComputeHash computes the hash in chunks, so

Git - finding the SHA1 of an individual file in the index

由 大兔子大兔子 提交于 2019-11-26 19:08:32
问题 I've added a file to the 'index' with: git add myfile.java How do I find out the SHA1 of this file? 回答1: You want the -s option to git ls-files . This gives you the mode and sha1 hash of the file in the index. git ls-files -s myfile.java Note that you do not want git hash-object as this gives you the sha1 id of the file in the working tree as it currently is, not of the file that you've added to the index. These will be different once you make changes to the working tree copy after the git

Hashing with SHA1 Algorithm in C#

由 佐手、 提交于 2019-11-26 19:05:34
问题 I want to hash given byte[] array with using SHA1 Algorithm with the use of SHA1Managed . The byte[] hash will come from unit test. Expected hash is 0d71ee4472658cd5874c5578410a9d8611fc9aef (case sensitive). How can I achieve this? public string Hash(byte [] temp) { using (SHA1Managed sha1 = new SHA1Managed()) { } } 回答1: For those who want a "standard" text formatting of the hash, you can use something like the following: static string Hash(string input) { using (SHA1Managed sha1 = new

How to generate random SHA1 hash to use as ID in node.js?

由 ぃ、小莉子 提交于 2019-11-26 18:42:38
问题 I am using this line to generate a sha1 id for node.js: crypto.createHash('sha1').digest('hex'); The problem is that it's returning the same id every time. Is it possible to have it generate a random id each time so I can use it as a database document id? 回答1: Have a look here: How do I use node.js Crypto to create a HMAC-SHA1 hash? I'd create a hash of the current timestamp + a random number to ensure hash uniqueness: var current_date = (new Date()).valueOf().toString(); var random = Math

How to add SHA-1 to android application

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-11-26 18:41:42
I'm trying to create a dynamic link in Firebase, when I'm selecting the android app, it shows an error saying "Add SHA-1 to this android app", I've already added a credential, but I'm not sure how exactly do I "add SHA-1 to the app" How is this done? Damini Mehra sha1 generation in android studio: Select Gradle in android studio from right panel Select Your App In tasks -> android-> signingReport Double click signingReport . You will find the sha1 fingerprint in the " Gradle Console " add this sha1 fingerprint in firebase console If you are using Google Play App Signing you need to use the

SHA1 hashing in SQLite: how?

由 依然范特西╮ 提交于 2019-11-26 18:26:49
问题 Working with several DBs in parallel and need to initialize some records with hashed passwords. In MS SQL server there are handy functions that allow to hash on the fly: HashBytes('SHA1', CONVERT(nvarchar(32), N'admin')) Is there is a similar function with SQLite ? If not, which is the easiest workaround (such as select from SQL server and somehow insert it into SQLite tables)? The preferred hashing algorithm is SHA1 and the passwords are stored in a BLOB column. Update: I use C# language in

A Regex to match a SHA1

由 房东的猫 提交于 2019-11-26 18:08:35
问题 I'm trying to match SHA1's in generic text with a regular expression. Ideally I want to avoid matching words. It's safe to say that full SHA1's have a distinctive pattern (they're long and a consistent length) - so I can match these reliably - but what about abbreviated SHA1's? Can I rely on the presence of numbers? Looking at the SHA1's in my commit log - numbers always appear in the first 3 characters. But is this too short? How many characters of SHA1 do I need to consider before I can
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