encryption

问题 Yesterday I've read the question Algorithm to create costum Template/Code from String. Because the question was not formulated that well it was downvoted just instantly. However, the question itself was in my opinion not that bad, so I decided to ask a hopefully better version of this question again. Ok, Im wondering how's the string encryption e.g. of the new Spotify codes is working. See the image below: I would be super interested in the extent to which it is possible to implement

问题 I would like to convert C# function to PHP function. Here is link to Function in C# : https://stackoverflow.com/a/19441805/3581428 public static string Encrypt(string clearText) { string EncryptionKey = "MAKV2SPBNI99212"; byte[] clearBytes = Encoding.Unicode.GetBytes(clearText); using (Aes encryptor = Aes.Create()) { Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(EncryptionKey, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 }); encryptor.Key = pdb

问题 var countryCode = new SqlParameter("@countryCode", SqlDbType.VarBinary); var byteArray = Encoding.UTF8.GetBytes(dto.Country); countryCode.Value = byteArray; var country = new SqlParameter("@country", "country"); country.Value = "country"; var rawUsers = DbContext.Users.FromSqlRaw("Select u.* from AspNetUsers u join AspNetUserClaims uc on u.Id = uc.UserId where uc.ClaimType = @country and uc.ClaimValue = @countryCode", country, countryCode) .ToList(); ERROR: [17:16:22 ERR] Error:The data types

问题 I am working on project of my own website where I need to scrape data from target site using websocket. Data is live feed or tick for price movement of currency and stocks. I am getting output in following format. try on http://websocket.org/echo.html : Location: wss://streamer.finance.yahoo.com/ Click on Connect. Message: {"subscribe":["AMZN"]} OUTPUT: CONNECTED SENT: {"subscribe":["AMZN"]} RECEIVED: CgRBTVpOFaQY3EQY4Kn0/99bKgNOTVMwCDgBRYjKzDxIyvN9ZQBQ4T7YAQQ= RECEIVED: CgRBTVpOFaQY3EQY4Kn0

问题 I'm new to JWT technology and I've being reading a lot of about it. I know JWT has 3 parts: HEADER:ALGORITHM & TOKEN TYPE PAYLOAD:DATA SIGNATURE TO BE VERIFIED WITH THE SECRET KEY Is it possible to encrypt the Payload information? I mean, let's say for instance I have this payload information in my token: { "iss": "joe", "exp": "1300819380", "data": { "id": "12", "userName": "PH", "qntRed": "7", "qntGrad": { "1": "800", "2": "858", "3": "950", "4": "745", "5": "981" } } And let's say "qntGrad

问题 I have received this message today when I tried to push my code: remote: Weak credentials. Please Update your password to continue using GitHub. remote: See https://help.github.com/articles/creating-a-strong-password/. How do they know I used a weak password since they only store the password hash? 回答1: Yes, your understanding is correct. When you type a password to sign in, create an account, or change your password, GitHub will check if the password you entered is considered weak according

问题 I don't know if it is right to ask my question here. I just need to make a feasibility study for an App I am trying to build. I chose Flutter because I allow to quickly create mobile apps. My application will be storing voice messages in forms of audio files . It can be an mp3 or an audio format. To make it readable by the receiver only, I need to encrypt the file using may be AES or e2e encryption. I need to know if it is possible to encrypt files with Dart in my flutter app. If it is

问题 I don't know if it is right to ask my question here. I just need to make a feasibility study for an App I am trying to build. I chose Flutter because I allow to quickly create mobile apps. My application will be storing voice messages in forms of audio files . It can be an mp3 or an audio format. To make it readable by the receiver only, I need to encrypt the file using may be AES or e2e encryption. I need to know if it is possible to encrypt files with Dart in my flutter app. If it is

问题 I don't know if it is right to ask my question here. I just need to make a feasibility study for an App I am trying to build. I chose Flutter because I allow to quickly create mobile apps. My application will be storing voice messages in forms of audio files . It can be an mp3 or an audio format. To make it readable by the receiver only, I need to encrypt the file using may be AES or e2e encryption. I need to know if it is possible to encrypt files with Dart in my flutter app. If it is

问题 Let's say I have an entire column in a table that is encrypted, the table also has unencrypted columns like IDs, and I have the encryption key for the entire column and I used the DBMS' encrypt() function with AES to store it. I'm wondering if there is anyway to execute something like SELECT * FROM table1 WHERE decrypt(col1, 'fooz', 'aes') = 'aValue' I've already tried that in PostgreSQL and the above syntax is not supported. If there is no way to do this, what are the workarounds? I've