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Questions tagged [sha256]

sha256 stands for Secure Hash Algorithm-256. It is a hash function computed with 32-bit words. It was designed by the US National Security Agency (NSA). It is used to authenticate Debian GNU/Linux software packages, in the DKIM message signing standard and many other applications.

sha256 stands for Secure Hash Algorithm-256. It is a hash functions computed with 32-bit words. It is one of the function in SHA-2 library. SHA-2 is a set of cryptographic hash functions (SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, SHA-512/256) published in 2001 by the NIST as a U.S. Federal Information Processing Standard (FIPS).

It was designed by US National Security Agency (NSA). It is used to authenticate Debian GNU/Linux software packages, in the DKIM message signing standard and many other applications.

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C# SHA256 RSA Signing. How to take a string from byte[] sign?

I have to use some API, which service who has my certificate. They propably wants my sign to verify if it is the same with certificate on their server. Im not sure of that, but. In documentation it is instruction: sign_base =
KamilITS
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How to shorten a URL in groovy?

I have created a URL that consist of some parameter like client id , expiry date and so on. Among these parameters I have one parameter called "Signature" which is hmac encrypted to maintain the security. Now the final URL getting generated is of…
Mansi Awal
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How to Generate Signature in Python 2.7

I need to generate a HmacSHA256 signature using python with the following parameters to the signature: merchantId = "testMerchantExample" apiHost = "apitest.example.com" apiUrl = "/v1/example?startDate=2019-07-01&organizationId=" + merchantId …
Jamie
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Slow down SHA-256 in C++?

I've been learning about cryptography lately and how slow hashes are the best to prevent brute-force attacks. I tried using SHA-256 in C++ implemented from this resource, which is fantastic, but it's very very fast. I changed up one of my…
John Smith
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How to correct my PHP code to get the same hash key as C# code

I want my PHP code to do the same as C# code with SHA2 256 c# Code string HashSHA2(string input) { SHA256 sha256Hash = SHA256.Create(); byte[] hash = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(input)); return string.Join("",…
Dev Mostafa
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Can the key be empty while generating HmacSHA256 using java

I am generating HMAC-SHA256 in Java. If the key is set to "" then The following exception is thrown: java.lang.IllegalArgumentException: Empty key But I can generate the HMAC using empty key in JavaScript using the CryptoJS.HmacSHA256("Sample…
Vivek
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passlib checksum doesn't verifies with SHA2 of MySQL

I am using vernemq to authorize users from database using SHA256 algorithm. I observe that when creating new entry in table using buildin mqsql function SHA2, INSERT INTO vmq_auth_acl (mountpoint, client_id, username, password,…
Anum Sheraz
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define hash cod SHA256 NodeJS

How to select the hash code on NodeJS? I have a system made in another language with passwords on SHA256 The function there is: #define HASH_CODE = 'WEASDSAEWEWAEAWEAWEWA'; SHA256_PassHash(HASH_CODE, password, 64); First, param is the hash code,…
annety
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How to identify my AES encryption is 128 or 256?

Good day, I have a existing AES encryption java class in my workspace, however, I would like to know its using 128 or 256, I tried to google it but still unable to get it, the following is the code: static { AesKeyCipher aesKeyCipher = new…
Panadol Chong
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How to use SHA256 in NodeJS

How to simplely convert a string to SHA256 string in Node.js. And convert a SHA256 string to a normal string? const shajs = require('sha.js'); console.log('starts'); const code = 'WEASDSAEWEWAEAWEAWEWA'; const normal = 'anne'; const encrypted =…
annety
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Enabling support for SHA256 in JDK 1.7.0 U221

Apparently, the followings ciphers are not supported in JDK 1.7.0 U221 ECDHE-ECDSA-AES128-GCM-SHA256 ECDHE-RSA-AES128-GCM-SHA256 ECDHE-ECDSA-AES128-SHA256 ECDHE-RSA-AES128-SHA256 Is there a way to add support for these?
Saqib Ali
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how to calculate SHA-256 of a bitmap image in android studio?

How to calculate SHA-256 of a bitmap image in android studio? I have already tried converting image into byte array and then find its message digest but it gives a completely different answer than what I find using online SHA-256 converters. I know…
Thatz'it
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Is it okay to have a DynamoDB table with a SHA256 Key?

I'm creating a User Table on DynamoDB, and I wanted to set the primary key as a sha256 hash string of the user's email address. Is it a good idea to keep a SHA256 value as a primary key in a DynamoDB table? Would this be better for lookups or worse?
kingnuni42
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Chilkat: sftp support for key exchange ciphers

I am developing a .NET Core application and need sFTP support including KexAlgorithm curve25519-sha256 cipher. Does the .NET product provide support for this?
James
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Creating Azure storage authorization header using python

I am trying to create the Authorization header for using Azure storage REST APIs. What a nightmare. The reason I am trying to do this is because I am trying to use a workflow builder (Alteryx) to call the API so my only programmatic options are…
Kevin D
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