#Encryption

What is JWT?

JWT (JSON Web Token) is an open standard (RFC 7519) that offers a lightweight, compact, and self-contained method for securely transmitting information between two parties. It is commonly used in web applications for authentication, authorization, and information exchange.

A JWT is typically composed of three parts:

1. JOSE (JSON Object Signing and Encryption) Header
2. Payload
3. Signature

A request came from a customer to estimate how long it would take to encrypt a database with cvencrypt utility.

This question is a little bit like how long is a piece of string — it depends. But its an interesting question. The answer primarily depends on the performance of CPU and storage on the target platform the customer is using, so the answer is more about coming up with a simple methodology that can be used to benchmark the CPU and storage while running cvencrypt.

Overview

Encryption of sensitive data becomes more and more important for applications. For example patient names, SSN, address-data or credit card-numbers etc..

Cache supports different flavors of encryption. Block-level database encryption and data-element encryption. The block-level database encryption protects an entire database. The decryption/encryption is done when a block is written/read to or from the database and has very little impact on the performance.

With data-element encryption only certain data-fields are encrypted. Fields that contain sensitive data like patient data or credit-card numbers. Data-element encryption is also useful if a re-encryption is required periodically. With data-element encryption it is the responsibility of the application to encrypt/decrypt the data.

Both encryption methods leverage the managed key encryption infrastructure of Caché.

The following article describes a sample use-case where data-element encryption is used to encrypt person data.

But what if you have hundreds of thousands of records with an encrypted datafield and you have the need to search that field? Decryption of the field-values prior to the search is not an option. What about indices?

This article describes a possible solution and develops step-by-step a small example how you can use SQL and indices to search encrypted fields.

In this article, we will establish an encrypted JDBC connection between Tableau Desktop and InterSystems IRIS database using a JDBC driver.
While documentation on configuring TLS with Java clients covers all possible topics on establishing an encrypted JDBC connection, configuring it with Tableau might be a little bit tricky, so I decided to write it down.

The recent announcement of a collision for the SHA-1 hash algorithm has caused some consternation:

https://shattered.io/

Here is some background to help put this in perspective.

Cryptographic hash functions can have a variety of properties. The property at issue here is:

"Collision resistance - it is computationally infeasible to find any two distinct inputs x, x' which hash to the same output, i.e., such that h(x) = h(x')."

(Menezes, van Oorchot, and Vanstone, "Handbook of Applied Cryptography", section 9.2.2)

Hello; We are managing several Ensemble instances on several servers. One server has 4 instances, and two other servers have one instance each (those are production servers). We encrypt all instances using the Caché encryption in the management portal.

Currently we are using two different encryption keys: 1 key on the server with 4 instances, which is used for all 4 instances, and a second key on single-instance server. ( I'm installing the newest production server now.)

Credentials for a Productions are stored as plain text in ^Ens.SecondaryData.Password and exposed as plain text via SQL table Ens_Config.Credentials which is not ideal as only admins should know the credentials.

I can create my own adapter etc... to store and use encrypted passwords but does anyone know if there is a standard way to do this in a Production?

Alternatively, am I missing how to secure this so the production can run and someone can monitor and operate a production without access to the SQL table or global?

Trying to use AES encryption for a url. I have a plain text string, a 16-byte key and a initialization vector. I am trying to match a C# implementation that uses RijndaelManaged class with a BlockSize = 128, Mode = CipherMode.CBC, Padding = PaddingMode.PKCS7. The output of the $SYSTEM.Encryption.AESCBCEncrypt(text,key,IV), doesn't match what is coming out of C#. All inputs into the $SYSTEM.Encryption.AESCBCEncrypt(text,key,IV) are converted to UTF8 as in the documentation.

I want to use AESEncode encryption, but it prompts a MAXSTRING error. How to solve it?

Hi guys,

I try to make a test of encryption, decryption of a simple text.

I can crypt my text, but I can't decrypt it, do you see somewhere a dummy error of my part ?

Thanks for help

ClassMethod UnitTest()

{

set inputPlainText = "David"

// get private key

set privKeyFileName = "C:\temp\toto.pem"

set privobjCharFile = ##class(%Stream.FileCharacter).%New()

set privobjCharFile.Filename = privKeyFileName

set privKey = privobjCharFile.Read()

Hi guys,

I need to check my HTTPS POST REQUEST, in order to do this I try to catch it by using wireshark.

I can't see anything because of the encryption.

I try unsuccefully to use the SSLKEYLOGFILE key (windows 11), but the generated file did not increase when I trigger my code OR postman, it grows only by the action of the web browser.

My question is so simple :

I want to generater a license for my code，but i don`t how to get CpuID and diskid in iris,someone know?

Currently running Ensemble on Red Hat Enterprise Linux Server release 7.7

One of our clients is requesting files sent to their SFTP site be encrypted with their PGP public key and digitally signed with our PGP private key

We have created a custom class that includes the following command to encrypt the files

Using Intel® Advanced Encryption Standard New Instructions with InterSystems Caché Substantially Improves Encryption Performance and Reduces Computational Overhead

Executive Summary