sha256

How to reproduce java MessageDigest SHA-256 hash in PHP?

陌路散爱 提交于 2020-08-02 05:41:07
问题 I currently have been given the following java code snippet as an example of how to calculate a hash based on a supplied 'in' and 'salt' variable. In these examples the variables are hardcoded for testing: package generatehash; import java.security.MessageDigest; import sun.misc.BASE64Encoder; public class GenerateHash { public static void main(String[] args) { String in = "abcdef12345"; String salt = "test1"; try { MessageDigest hash = MessageDigest.getInstance("SHA-256"); byte[] digest =

Asynchronous SHA256 Hashing

丶灬走出姿态 提交于 2020-07-06 08:59:46
问题 I have the following method: public static string Sha256Hash(string input) { if(String.IsNullOrEmpty(input)) return String.Empty; using(HashAlgorithm algorithm = new SHA256CryptoServiceProvider()) { byte[] inputBytes = Encoding.UTF8.GetBytes(input); byte[] hashBytes = algorithm.ComputeHash(inputBytes); return BitConverter.ToString(hashBytes).Replace("-", String.Empty); } } Is there a way to make it asynchronous? I was hoping to use the async and await keywords, but the HashAlgorithm class

Asynchronous SHA256 Hashing

妖精的绣舞 提交于 2020-07-06 08:58:24
问题 I have the following method: public static string Sha256Hash(string input) { if(String.IsNullOrEmpty(input)) return String.Empty; using(HashAlgorithm algorithm = new SHA256CryptoServiceProvider()) { byte[] inputBytes = Encoding.UTF8.GetBytes(input); byte[] hashBytes = algorithm.ComputeHash(inputBytes); return BitConverter.ToString(hashBytes).Replace("-", String.Empty); } } Is there a way to make it asynchronous? I was hoping to use the async and await keywords, but the HashAlgorithm class

HMAC SHA256 in C# vs HMAC SHA256 in Swift don't match

断了今生、忘了曾经 提交于 2020-06-29 06:42:21
问题 Using the 'standard' HMACSHA256 technique in dotnetcore C# I can produce a hashed string as follows: private static void Test() { var hmac = new HMACSHA256(Encoding.UTF8.GetBytes("testingkey")); var theHash = hmac.ComputeHash(Encoding.UTF8.GetBytes("testingstringtohash")); string signature = Convert.ToBase64String(theHash); Console.WriteLine(signature); } //Produces yg/9NCAm5IIwGKJK80PyUeBWkzEUwZswvC3OVnTnT80= To do the same in swift (solution from this answer seems to be the 'standard' that

SHA256withRSA what does it do and in what order?

萝らか妹 提交于 2020-04-28 04:14:39
问题 I'm a total newbie when it comes to cryptography and such things. I don't (and dont want to) know the details of the SHA256 and RSA. I "know" what they do, not how they do it, and for now that's enough. I'm wondering what the "SHA256withRSA"-algorithm (if you can call it that) actually do and in what order. For example, does it hash the data with SHA256 and then encrypts it using RSA or is it vice-versa, or something else? The reason I'm asking is because I wanna do the java equivalent of:

SHA256withRSA what does it do and in what order?

ε祈祈猫儿з 提交于 2020-04-28 04:13:20
问题 I'm a total newbie when it comes to cryptography and such things. I don't (and dont want to) know the details of the SHA256 and RSA. I "know" what they do, not how they do it, and for now that's enough. I'm wondering what the "SHA256withRSA"-algorithm (if you can call it that) actually do and in what order. For example, does it hash the data with SHA256 and then encrypts it using RSA or is it vice-versa, or something else? The reason I'm asking is because I wanna do the java equivalent of:

Docker存储驱动之--overlay2

元气小坏坏 提交于 2020-04-05 15:57:14
docker支持多种graphDriver,包括vfs、devicemapper、overlay、overlay2、aufs等等,其中最常用的就是aufs了,但随着linux内核3.18把overlay纳入其中,overlay的地位变得更重,最近也在自己的虚拟机上用overlay2作为docker存储驱动实验了一番,下面来做一个简单的笔记和总结。 docker默认的存储目录是 /var/lib/docker ,下面我们简单打印一下这个目录: drwx------. 2 root root 24 Mar 28 07:13 builder drwx------. 4 root root 92 Mar 28 07:13 buildkit drwx------. 6 root root 4096 Mar 29 10:25 containers drwx------. 3 root root 22 Mar 28 07:13 image drwxr-x---. 3 root root 19 Mar 28 07:13 network drwx------. 17 root root 4096 Mar 30 14:32 overlay2 drwx------. 4 root root 32 Mar 28 07:13 plugins drwx------. 2 root root 6 Mar 30