encryption

问题 I have an SQL Server 2008 table with a structure similar to the following: ID int PRIMARY KEY IDENTITY(1,1) Name nvarchar(100) LongText ntext What I am trying to achieve is simple. Before inserting data inside this table, I want to encrypt the LongText using AES_192 algorithm. I am using the following SP to encrypt data: create proc sp_Encrypt_LongText @rawText ntext = null, @encryptedText nvarchar(max) output as begin OPEN SYMMETRIC KEY Encryption_Symmetric_Key DECRYPTION BY CERTIFICATE

问题 I have an SQL Server 2008 table with a structure similar to the following: ID int PRIMARY KEY IDENTITY(1,1) Name nvarchar(100) LongText ntext What I am trying to achieve is simple. Before inserting data inside this table, I want to encrypt the LongText using AES_192 algorithm. I am using the following SP to encrypt data: create proc sp_Encrypt_LongText @rawText ntext = null, @encryptedText nvarchar(max) output as begin OPEN SYMMETRIC KEY Encryption_Symmetric_Key DECRYPTION BY CERTIFICATE

问题 I'm building a secure android application that runs with IOCipher and SQLCipher. My app is storing PDF, DOC, DOCX, XLS, XLSX files that are intended to be openned by a third party application. Currently I can open all these type of files but DOCX . When I open a docx file that is stored in IOCipher using this method: File file = new File(path); Uri contentUri = Uri.parse(VFSContentProvider.FILES_URI + file.getName()); Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent

问题 is there a way that you can specify a separate encryption and validation key. Currently, there is just one master key that does both validation and encryption. However, we have several applications in a web farm and only one of them run on ASP.NET CORE and this is hosted on IIS. The rest of the application (Running on ASP.NET *Not core) use the same machine key. The machine key has, of course, the decryption and validation keys and all the other applications use this same machine key to

问题 I have appended the IV to the AES Encryption/decryption code by using objective c in iOS and able to decrypt and encrypt the same. Right now I am trying to add the salt to the AES Encryption but unfortunately its not working for me. Here is the code: I have also edited with Android salt generation code for just to check whether my salt generation is valid or not in iOS Encryption code: + (NSData*)encryptData:(NSData*)data key:(NSData*)key error:(NSError **)error; { NSData *salt = [self

问题 I have appended the IV to the AES Encryption/decryption code by using objective c in iOS and able to decrypt and encrypt the same. Right now I am trying to add the salt to the AES Encryption but unfortunately its not working for me. Here is the code: I have also edited with Android salt generation code for just to check whether my salt generation is valid or not in iOS Encryption code: + (NSData*)encryptData:(NSData*)data key:(NSData*)key error:(NSError **)error; { NSData *salt = [self

问题 I want to read from a stream then encrypt it and finally write it to another file. This is my code: var fs = require('fs'); var crypto = require('crypto'); var infile = fs.createReadStream('a.dmg'); var outfile = fs.createWriteStream('b.dmg'); var encrypt = crypto.createCipher('aes192', 'behdad'); var size = fs.statSync('a.dmg').size; console.log(size); infile.on('data',function(data) { var percentage = parseInt(infile.bytesRead) / parseInt(size); console.log(percentage * 100); var encrypted

问题 I have a use-case in spark where I have to read data from a S3 that uses client-side encryption, process it and write it back using only server-side encryption. I'm wondering if there's a way to do this in spark? Currently, I have these options set: spark.hadoop.fs.s3.cse.enabled=true spark.hadoop.fs.s3.enableServerSideEncryption=true spark.hadoop.fs.s3.serverSideEncryption.kms.keyId=<kms id here> But obviously, it's ending up using both CSE and SSE while writing the data. So, I'm wondering

问题 I have a use-case in spark where I have to read data from a S3 that uses client-side encryption, process it and write it back using only server-side encryption. I'm wondering if there's a way to do this in spark? Currently, I have these options set: spark.hadoop.fs.s3.cse.enabled=true spark.hadoop.fs.s3.enableServerSideEncryption=true spark.hadoop.fs.s3.serverSideEncryption.kms.keyId=<kms id here> But obviously, it's ending up using both CSE and SSE while writing the data. So, I'm wondering

问题 I am already having encryption code in java. Now I want to consume APIs from my server. Even after trying various tutorials and sample codes I am not able to successfully decrypt the hash. I know fixed salt and IV is not recommended at all. But for simplicity and to understand the issue I have kept salt and IV to "00000000000000000000000000000000"; Hash After Encryption from Java = "XjxCg0KK0ZDWa4XMFhykIw=="; Private key used = "Mayur12354673645" Can someone please help me to decrypt above