As of Java version 7 and above the RSA digital signatures computation has been changed and signatures that were previously accepted by software build with Java may end being rejected with message like: “unable to verify signature: Signature length not correct: got 511 but was expecting 512” Solutions using DidiSoft OpenPGP Library for .NET may […]
Knowledge Base
OpenPGP Knowledge Base (Java, C#, VB.NET examples and solutions)
OraSFTP v 1.2.6 now supports current remote folder
DidiSoft OraSFTP prior to version 1.2.6 were limited to either absolute paths or paths relative from the current user remote home directory. As of version 1.2.6 the current remote folder can be changed this way allowing for easy traversing and manipulation of complex remote folder structures. The new methods that support this functionality are: ORA_SFTP.CURRENT_DIRECTORY […]
Should the EFAIL attack concern your PGP applications
A few days ago in the world of applied cryptography especially S/MIME and PGP emails has appeared a new threat – the EFAIL attack. In this post we are not going to explain again details of the attack itself as a lot has already been published on the Internet, but rather explain do you have […]
Should DidiSoft OpenPGP Library for .NET provide strong name assemblies or unsigned assemblies?
Last week we have sent a short survey to subscribers for our OpenPGP Library for .NET mailing list. The survey had only one question: Should DidiSoft OpenPGP Library for .NET provide strong name (signed) assemblies (DLL’s) or plain unsigned assemblies? At the end of this post you will find the results of the survey, but […]
Weird symbols in emails to BlackBerry clients
Sending PGP/MIME emails to BlackBerry clients may lead to weird symbols in front of given special characters. This is a hard to be solved bug as it has nothing to do with OpenPGP. The OpenPGP messages created with DidiSoft OpenPGP Library for Java and OpenPGP Library for Android are correct and identical when decrypted up to […]
Exchanging encrypted data with Bank of America
Bank of America accepts OpenPGP encrypted files from its clients. Unfortunately in the official technical documentation that they provide it is not very clear how to create the proper format which they will accept. In order to easy you we will show bellow a small code snippet that will illustrate how to create such encrypted file […]
OraRSA 1.1 offering various SHA based signings
DidiSoft OraRSA version 1.1 was released today. It offers to customize the digital signature algorithm in contrast to version 1.0 where only SHA1withRSA was available. How to use the new algorithms? In order to use the new algorithms, you must specify the algorithm needed as the last parameter of the ORA_RSA.SIGN and ORA_RSA.VERIFY methods. Available values […]
IdNotFoundException
Executing procedures from the dbms_java Oracle PL/SQL package may result in a strange IdNotFoundException like: ORA-29532: Java call terminated by uncaught Java exception: oracle.aurora.vm.IdNotFoundException: user : user or role id does not exist This is very common when granting java.io.FilePermission: call dbms_java.grant_permission(‘user’, ‘java.io.FilePermission’, ‘C:/MyFolder/ora-pgp-1.1.0.jar’, ‘read’); If you experience such error try changing the user(schema) name to Uppercase.
OpenPGP Library for .NET 1.7.14 with Web of Trust
DidiSoft OpenPGP Library for .NET 1.7.14 was released today offering extended support for OpenPGP Web of Trust. In previous versions of the library only setting own trust was available and plain signing of keys. With this new release keys status can be checked by Trust amount and Verified status. We can also sign public keys […]
OpenPGP Library for .NET in Mono
DidiSoft OpenPGP Library for .NET can be used without any problems in Mono projects under Mac OSX and Linux. The library DLL files that you have to reference in your Mono project are the ones located in the root of the \Bin folder. A limitation for Mono developers is that they have to first install the library […]