sha1

HMAC SHA1 Digest in python

由 橙三吉。 提交于 2019-12-10 16:33:46
问题 I'm using the Moves API to get some fitness data. Instead of querying the API on a regular basis I would like to use the storyline notifications. It works, I get a request from the API but I'm unable to verify the hmac sha1 signature provided in the request. The Documentation says: All notification requests are signed with Base64 encoded HMAC-SHA1 signature. The signature is calculated as HMAC_SHA1(<your client secret>,<request body>|<timestamp>|<nonce>), in other words the client secret as

Use a combination of SHA1+MD5

由 送分小仙女□ 提交于 2019-12-10 15:22:29
问题 I'm trying use a secure way to create checksum for files (Larger than 10GB !). SHA256 is secure enough for me but this algorithm is so process expensive and it is not suitable. Well I know that both SHA1 and MD5 checksums are insecure through the collisions. So I just think the fastest and the safest way is combining MD5 with SHA1 like : SHA1+MD5 and I don't think there is way to get file (Collision) with the same MD5 and SHA1 both at a same time . So is combining SHA1+MD5 secure enough for

How to get correct SHA1 hash of BLOB using CryptoJS?

由 こ雲淡風輕ζ 提交于 2019-12-10 13:36:20
问题 CryptoJS v3.1.2, sha1.js rollup In JS I want to calculate the SHA1 of a blob before sending it to the server. On the server I want to calculate the SHA1 of the resulting file and compare it to the SHA1 received from JS. The problem is that the hash generated by CryptoJS.SHA1() is incorrect (always 9844f81e1408f6ecb932137d33bed7cfdcf518a3) JS Code: function uploadFileslice (slice) { // slice is a blob var fileReader = new FileReader() fileReader.onload = function(event){ var arrayBuffer =

Is MD5 still considered secure for single use authentications?

由 梦想与她 提交于 2019-12-10 12:15:51
问题 Everyone is shooting down MD5 these days for its issues in the context of storing passwords. But what about uses where I just want to add a layer of authentication to something that will likely be used once? This is just a hypothetical example, but let's say I have a feature to allow a user to reset their password. I email the user a link that they can click to set a new (randomly-generated) password. My current thinking is that I'll generate an MD5 hash, using a private salt value, and a

Generating one MD5/SHA1 checksum of multiple files in Python

由 笑着哭i 提交于 2019-12-10 10:55:15
问题 I have looked through several topics about calculating checksums of files in Python but none of them answered the question about one sum from multiple files. I have several files in sub directories and would like to determine if there was any change in one or more of them. Is there a way to generate one sum from multiple files? EDIT: This is the way I do it to get a list of sums: checksums = [(fname, hashlib.md5(open(fname, 'rb').read()).digest()) for fname in flist] 回答1: So I made it :) This

Most efficient way to change the hash type of a password (md5 to sha1)

由 和自甴很熟 提交于 2019-12-10 10:13:26
问题 I have a system using MD5 to hash passwords from my users and store it into my database. Now, I'm changing to another system that uses SHA1 (and a unique system SALT, not user-unique) to hash the passwords. How do I manage to get the user old MD5 password turned into my new SHA1 password with PHP? 回答1: You can not convert md5 to sha but really your users only use password when they are about to login so you can modify your script a little to do the update automatically // The user is not

Want to Convert a Website password Encryption from SHA1 to SHA256

由 旧街凉风 提交于 2019-12-10 03:09:04
问题 just looking for some advise. I have a website with around 2500 users - small but growing. I built it with using SHA1 encryption on the passwords. I've since read the SHA1 is insecure and would like to change to say SHA256 with a Salt. Does anyone have any advice on how to make a transition like this? Would be great if I could decrypt the passwords and just re-hash them but it doesn't appear doing able. thx Adam 回答1: The usual way of going about this is this: Make the hashed-password column

Your Operation was forbidden issue in Firebase Console

由 ↘锁芯ラ 提交于 2019-12-10 00:40:36
问题 I created an Android Project. Now I want to add Firebase into my android project. I register my application on firebase console. Now When I try to add my sha-1 key in to project it gives me following error. I search on google and stackoverflow but didn't receive any proper answer. According to some answers this error occurs when I insert same sha-1 key in to another project of firebase. Let me tell you that this is my only project in firebase console. I do not have any other project in this

AES,SHA1,DES,RSA,MD5区别

由 吃可爱长大的小学妹 提交于 2019-12-10 00:12:25
AES：更快，兼容设备，安全级别高； SHA1：公钥后处理回传 DES：本地数据，安全级别低 RSA：非对称加密，有公钥和私钥 MD5：防篡改 相关： 公开密钥加密（英语：public-key cryptography，又译为公开密钥加密），也称为非对称加密（asymmetric cryptography），一种密码学算法类型，在这种密码学方法中，需要一对密钥，一个是私人密钥，另一个则是公开密钥。这两个密钥是数学相关，用某用户密钥加密后所得的信息，只能用该用户的解密密钥才能解密。如果知道了其中一个，并不能计算出另外一个。因此如果公开了一对密钥中的一个，并不会危害到另外一个的秘密性质。称公开的密钥为公钥；不公开的密钥为私钥。 DES现在已经不是一种安全的加密方法，主要因为它使用的56位密钥过短。1999年1月，distributed.net与电子前哨基金会合作，在22小时15分钟内即公开破解了一个DES密钥。也有一些分析报告提出了该算法的理论上的弱点，虽然在实际中难以应用。为了提供实用所需的安全性，可以使用DES的派生算法3DES来进行加密，虽然3DES也存在理论上的攻击方法。在2001年，DES作为一个标准已经被高级加密标准（AES）所取代。另外，DES已经不再作为国家标准科技协会（前国家标准局）的一个标准。 高级加密标准（英语：Advanced Encryption

AES,SHA1,DES,RSA,MD5区别 

由 牧云@^-^@ 提交于 2019-12-09 23:52:55
AES,SHA1,DES,RSA,MD5区别 加密 版权声明：本文为博主原创文章，未经博主允许不得转载。 AES：更快，兼容设备，安全级别高； SHA1：公钥后处理回传 DES：本地数据，安全级别低 RSA：非对称加密，有公钥和私钥 MD5：防篡改 相关： 公开密钥加密（ 英语 ： public-key cryptography ，又译为公开密钥加密），也称为非对称加密（asymmetric cryptography），一种 密码学 算法 类型，在这种密码学方法中，需要一对密钥，一个是私人密钥，另一个则是公开密钥。这两个密钥是数学相关，用某用户密钥加密后所得的信息，只能用该用户的解密密钥才能解密。如果知道了其中一个，并不能计算出另外一个。因此如果公开了一对密钥中的一个，并不会危害到另外一个的秘密性质。称公开的密钥为公钥；不公开的密钥为私钥。 DES现在已经不是一种安全的加密方法，主要因为它使用的56位密钥过短。1999年1月， distributed.net 与 电子前哨基金会 合作，在22小时15分钟内即公开破解了一个DES密钥。也有一些分析报告提出了该算法的理论上的弱点，虽然在实际中难以应用。为了提供实用所需的安全性，可以使用DES的派生算法 3DES 来进行加密，虽然3DES也存在理论上的攻击方法。在2001年，DES作为一个标准已经被高级加密标准（AES）所取代。另外
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