sha256 | 易学教程

How to reproduce an SHA256-based HMAC from R in Python 3

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问题 I am trying to reproduce salted sha256 output from R code in Python: library(openssl) res = sha256("test@gmail.com", key = "111") res # [1] "172f052058445afd9fe3afce05bfec573b5bb4c659bfd4cfc69a59d1597a0031" import hashlib, binascii dk = hashlib.pbkdf2_hmac(='sha256', b'test@gmail.com', b'111', 0) binascii.hexlify(dk) # b'494c86307ffb9e9e31c4ec8782af6498e91272c011a316c242d9164d765be257' How can I make output in python match R? 回答1: I can't quite reproduce your issue. The following keys match

OpenSSL and CryptoJS SHA256 encryption conversion

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问题 My problem is that the newer versions of OpenSSL aren't compatible with default settings of CryptoJS. The default hash used by openssl enc for password-based key derivation changed in 1.1.0 to SHA256 versus MD5 in lower versions. https://unix.stackexchange.com/questions/344150/why-can-one-box-decrypt-a-file-with-openssl-but-another-one-cant/344586#344586 By default, CryptoJS uses MD5 for its key derivation. OpenSSL used MD5, but now in OpenSSL versions >=1.1.0 it's using SHA256. So if I pass

SHA256 in Go and PHP giving different results

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问题 I'm trying to send a SHA256 hashed string over HTTP to a server, where I want to authenticate by performing a SHA256 hash and verifying the two match. For testing purposes I'm using the same string, however my results do not match up. Could this be something with default encoding schemes for my base64_encode calls? Thanks. In PHP I'm doing: $sha = hash("sha256", $url, true); $sha = base64_encode(urlencode($sha)); And in Go I'm doing //convert string to byte slice converted := []byte(to_hash)

SHA-256 hashes different between C# and Javascript

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问题 I am currently working on a project that will involve credit card swipes for admissions based on database rows. Like a will call system, the SHA-256 hash of the CC number must match the hash in the DB row in order to be considered the "proper pickup". However, because the box office system is based in the browser, the CC number on pickup must be hashed client-side, using Javascript, and then compared to the previously downloaded will call data. However when trying to hash the numbers, the

SHA-256 hashes different between C# and Javascript

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Digest mimatch for sha256

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问题 I am trying to encode the string abc using sha256 and below is the output I got. ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad But, if I use the command openssl sha256 -hex on Linux command line, I get the below output for the same string. edeaaff3f1774ad2888673770c6d64097e391bc362d7d6fb34982ddf0efd18cb Why is there a difference in the outputs? Where am I doing wrong? 来源： https://stackoverflow.com/questions/39307192/digest-mimatch-for-sha256

How to: New order Binance API via RStudio

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问题 I am trying to create a new order via the Binance API using RStudio. I found the Binance Official API Docs and figured out that I should use POST /api/v3/order (HMAC SHA256). The following script doesn't work out for me: url='https://api.binance.com/api/v3/account' GET(url, add_headers("X-MBX-APIKEY"= *[my API key]*), query=list("symbol"="ETHBTC", "side"="BUY", "type"="MARKET", "quantity"=1, recvWindow=5000, "timestamp"=1499827319559, "signature"=**???**), verbose()) Does anyone know what I'm

Translation from Python to JavaScript: HMAC-SHA256

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问题 I'd like to convert the following piece of Python code to JavaScript: signature_string = self.format("{apip_id}{identity_id}{method}{uri}{content_hash}{timestamp}{nonce}") # pyhton unicode string in UTF-8 format signature_bytes = signature_string.encode('utf-8') # previous string is converted in a python bytes string apip_key_bytes = base64.b64decode(self.apip_key.encode('utf-8')) # pyhton unicode string is converted in a python bytes string and then in ?? hasher = hmac.new(apip_key_bytes,

openssl sha256 diff

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问题 I am using openssl 1.0.1c , linux x86_64 i am creating file contains "hello" (without new line character) openssl dgst -sha256 hello_file i get : 5891b5b522d5df086d0ff0b110fbd9d21bb4fc7163af34d08286a2e846f6be03 If i am using any other online calc (1 , 2 , 3 , 4 , 5 (because of lack of reputation i cant do more hyperlinks) i get : 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 The most confusing part is if i am trying online calculator with "hello(new line character)" then 1

docker存储

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现在是数据的时代，数据的重要性不言而喻，因此在使用docker的过程中，如何存储其产生的数据就是docker的重中之中，现在我们就一起来看看docker是怎么存储数据的。数据卷及挂载 volume（数据卷）：其由docker自身创建与管理，用于docker数据的持久化与容器间数据共享。 Bind mounts（挂载）：使用-v或–mount进行引用宿主机上已经存在的目录或文件，用于docker数据的持久化与容器间数据共享。 tmpfs mounts（tmpfs挂载）：用于存储程序运行中产生的临时数据，数据保存在主机内存中。 Linux系统下专用优缺点 volume 1、管理更方便，可以使用docker的CLI与API进行管理 2、不需要docker主机必须具有给定的目录或文件结构 3、迁移更加方便 3、数据卷可以存储在远程主机或云上 4、swarm下共享数据更加方便 bind mounts 1、只需要挂载文件时，更加方便 2、当确保Docker主机的文件或目录结构与容器所需的绑定挂载一致时。 tmpfs mounts 1、存储敏感临时数据 2、容器停止，tmpfs挂载被删除存储驱动容器和镜像介绍驱动之前，我们先介绍以下docker的容器与镜像。镜像：由一层层的只读的文件系统（镜像）组成，在Dockerfile中，每一个RUN命令都会创建一层镜像