encryption

问题 Is there any ready to use implementation of RSA encryption algorithm for Excel( just encrypt a plain text using given public key, nothing else ) ? Or I need to implement it from the beginning ? I Google but found nothing useful. Any useful links is welcome. UPDATE: I need a non-commercial library. 回答1: This site Simple RSA Encryption and this site have some example code for both VBA and .NET 来源： https://stackoverflow.com/questions/13500280/rsa-encryption-using-microsoft-excel

问题 Is there any ready to use implementation of RSA encryption algorithm for Excel( just encrypt a plain text using given public key, nothing else ) ? Or I need to implement it from the beginning ? I Google but found nothing useful. Any useful links is welcome. UPDATE: I need a non-commercial library. 回答1: This site Simple RSA Encryption and this site have some example code for both VBA and .NET 来源： https://stackoverflow.com/questions/13500280/rsa-encryption-using-microsoft-excel

问题 Is there any ready to use implementation of RSA encryption algorithm for Excel( just encrypt a plain text using given public key, nothing else ) ? Or I need to implement it from the beginning ? I Google but found nothing useful. Any useful links is welcome. UPDATE: I need a non-commercial library. 回答1: This site Simple RSA Encryption and this site have some example code for both VBA and .NET 来源： https://stackoverflow.com/questions/13500280/rsa-encryption-using-microsoft-excel

问题 I am looking for two fitting code snippets to encode some text with python, which is to be decoded in php. I am looking for something "easy" and compatible, and I have not much encryption experience myself. If someone could give a working example that would be great! 回答1: python encrypt from Crypto.Cipher import AES import base64 import os # the block size for the cipher object; must be 16, 24, or 32 for AES BLOCK_SIZE = 32 BLOCK_SZ = 14 # the character used for padding--with a block cipher

问题 I have some data of an X509v3 certificate that is used at a central licensing station. My question is is the following amount of information enough for me to decrypt data using C# code? And additionally, how are the certificate properties imported into a project? Do I have to create a certificate file in order to go on? Known to me are: Subject Serial Number Issuer "root-ca" Public Key Algorithm: "rsaEncryption" RSA Modulus, 128 bytes RSA Public Key Exponent X509v3 Extended Key Usage:

问题 I have some data of an X509v3 certificate that is used at a central licensing station. My question is is the following amount of information enough for me to decrypt data using C# code? And additionally, how are the certificate properties imported into a project? Do I have to create a certificate file in order to go on? Known to me are: Subject Serial Number Issuer "root-ca" Public Key Algorithm: "rsaEncryption" RSA Modulus, 128 bytes RSA Public Key Exponent X509v3 Extended Key Usage:

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

问题 I used the VideoView class in Android(Kotlin). Here I tried to find a way to assign a direct decrypt key to the video player . I used AES-128 Encryption. Shif language(AVPlayer) provides a delegate method to an AV player. I tried to same way in android. But doesn't Help. IS there any way to assign encryption keys to VideoView in Android. Thank you. my m3u8 content #EXTM3U #EXT-X-TARGETDURATION:8 #EXT-X-MEDIA-SEQUENCE:16 #EXT-X-VERSION:3 #EXT-X-KEY:METHOD=AES-128,URI="123.key" #EXTINF:8,

问题 We have face the issue while upgrading the existing application in android studio 3.6.3 Issues: ERROR: ERROR: Unable to find method 'com.android.build.gradle.internal.profile.ProfilerInitializer.init(Lorg/gradle/api/Project;)V'. Possible causes for this unexpected error include: Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.) Re-download dependencies and sync project (requires network) The state of a Gradle build process (daemon) may be

问题 I finished pset2 (caesar) of CS50, but when I run it through check50, I get three errors, each involving the command-line arguments in some way. When I try to test it myself, it works fine, which makes me think the problem is "under the hood" and not able to be solved unless I revise my code. I tried deleting uncessary lines, but the errors still persisted, so I was wondering if someone could take a look at my code and tell me what's wrong. Here's the code: #include <stdio.h> #include <stdlib