News Archive

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JCrypTool version 1.0 released
30 Nov 2020
Version 1.0 of JCrypTool was released today, November 30th, 2020. It is intended for beginners and experts in cryptography alike. JCrypTool is available in English and German. Already bundled are over 100 plugins that cover classical and modern cryptography. View a full list of included cryptography features. ×Close Visit the...
Read more ... JCrypTool News CrypTool Portal News General News
CrypTool website completely renewed
30 Oct 2020
In the course of 2020, the CrypTool portal was comprehensively renewed once again. The website at www.cryptool.org was originally created in 2003 for CrypTool 1 and has been rebuilt into the "CrypTool portal" in 2008 with the addition of CrypTool 2 and JCrypTool. 2009 it has been extended by CrypTool-Online....
Read more ... CrypTool Portal News General News
Cryptology game "the CODEBREAKERS" 2020
25 Oct 2020
The next edition of the CODEBREAKERS International Cryptology Game is just starting! It mixes short lectures about the secrets of the ENIGMA cipher machine with interesting challenges. The challenges are presented in 3 levels (Trial, Basic, and Advanced). For the Basic and Advanced levels, teams are invited to participate; for...
Read more ... General News
Privacy-Friendly Contact Tracing
05 Jun 2020
There are two new websites which explain how the privacy-friendly protocols of the corona tracing apps work: 1) The animation This is a real nice "animation" for normal users showing all the steps of the process in an animated way. The animation focuses on what's going on from the view...
Read more ... CrypTool Portal News General News
CrypTool 2 Release 2020.1 published
01 Apr 2020
In April 2020, we published the first release of CrypTool 2 (CT2) this year, named "2020.1". This is a major functional update (compared to the last release "2018.3"). In this release, we improved the performance of the Workspace Manager significantly as well as of CT2 in general. Additionally, we updated...
Read more ... CrypTool 2 News General News
Subscriber record: 1000 at CT2 Facebook page and 100 at the CT2 YouTube channel
17 Mar 2020
The CrypTool 2 (CT2) project is active on several social media platforms. On the one hand, there has been the Facebook page for several years, which reached 1000 subscribers this weekend. On the other hand, there is our YouTube channel since October, which has reached more than 100 subscribers in...
Read more ... CrypTool 2 News General News
Student crypto 2019 in Kelkheim
08 Nov 2019
On November 8, 2019, the student crypto sponsored by Deutsche Bank took place for the ninth time at the Kelkheimer Eichendorffschule. The students of the two mathematics labs of EDS and the students of the computer science basic course of the Main-Taunus-Schule Hofheim took part. With new tasks and CrypTool...
Read more ... Schülerkrypto
20+ Years CrypTool – Looking Back and Forward
05 Nov 2019
End of October 2019, many members of the CrypTool team as well as invited guests met in Munich to celebrate the 20th+ anniversary of the CrypTool project. The event took place at the research institute CODE of the university of the Bundeswehr and was organized by the working group "Datenschutz...
Read more ... CrypTool Portal News General News
Cryptology game "THE CODEBREAKERS" 2019
16 Oct 2019
The contest runs from October 21st to end of November 2019. This game mixes short lectures about the secrets of the ENIGMA cipher machine with interesting challenges. Registration is open already under "THE CODEBREAKERS". The challenges are presented in 3 levels (Trial, Basic and Adventure). For the Basic and Adventure...
Read more ... General News
JCrypTool updates to Eclipse 2019-06
01 Jul 2019
JCrypTool weekly builds are based on the latest Eclipse version 2019-06 since July 2019. Since the latest weekly builds since July 2019, JCrypTool is based on the latest Eclipse version 2019-06 and benefits from all its improvements. The next stable version of JCrypTool will be based on this Eclipse version...
Read more ... JCrypTool News General News
New Version of CrypTool — CT 2.1 (2018-3) released
21 Dec 2018
The new release version of CrypTool 2.1 was published on Dec 19, 2018. This "Xmas version" is available in 3 languages (German, English, and Russian). It contains many small improvements and a direct connection to the Swedish DECODE database for encrypted, historical documents. The open-source project CrypTool (CT) creates the...
Read more ... CrypTool 2 News General News
Student crypto 2018 in Kelkheim
09 Nov 2018
On 2018-11-09 the student crypto sponsored by Deutsche Bank took place for the eighth time in the Kelkheimer Eichendorffschule. At the student crypto, teachers and students of the upper school could immerse themselves in the science of secret language (cryptology) and try out the procedures themselves, both manually and with...
Read more ... Schülerkrypto
New Version of CrypTool — CT 1.4.41 released
30 Mar 2018
A new release of CrypTool 1 was published on March 27, 2018. This mature version is available in 6 languages (German, English, Spanish, Polish, Serbian, and French). Compared to 1.4.40, it contains many small bug fixes and corrections (especially for functions using Animal, Flash, HTML, and PDF). The open-source project...
Read more ... CrypTool 1 News General News
Student crypto 2018 in Hanau
29 Jan 2018
On 2018-01-29 a student crypto took place in Hanau at the Karl-Rehbein-Schule.
Read more ... Schülerkrypto
Student crypto 2018 at the Universität Kassel
29 Jan 2018
On 2018-04-28 the sixth student crypto took place at the University of Kassel. As in the previous five years, the student crypto were again a cooperation between the Department 16 Electrical Engineering/Computer Science of the University of Kassel and the Schülerforschungszentrum Nordhessen (SFN). On the student crypto, students and teachers...
Read more ... Schülerkrypto
Student crypto 2017 in Kelkheim
03 Nov 2017
On 2017-11-03 the student crypto, sponsored by Deutsche Bank, took place for the seventh time in the Kelkheimer Eichendorffschule. At the student crypto, teachers and their high school students could learn the science of the secret language (cryptology) and try it out for themselves.
Read more ... Schülerkrypto
Student crypto 2017 at the Universität Kassel
05 Oct 2017
On 2017-10-05 the fifth student crypto took place at the University of Kassel. As in the previous four years, the student crypto were again a cooperation between the Department 16 Electrical Engineering/Computer Science of the University of Kassel and the Schülerforschungszentrum Nordhessen (SFN). On the student crypto, students and teachers...
Read more ... Schülerkrypto
New Release of CrypTool — CT 1.4.40 released
31 Mar 2017
A new release of CrypTool 1 was published on September 21, 2017. This version is available in 6 languages (German, English, Spanish, Polish, Serbian, and French), and it contains many bug fixes and corrections. The open-source project CrypTool (CT) creates the most widespread, free e-learning programs for cryptography and cryptanalysis....
Read more ... CrypTool 1 News General News
Student crypto 2016 in Kelkheim
25 Nov 2016
On 2016-11-25 the student crypto, sponsored by Deutsche Bank, took place for the sixth time in the Kelkheimer Eichendorffschule. At the student crypto, teachers and their high school students could learn the science of the secret language (cryptology) and try it out for themselves.
Read more ... Schülerkrypto
CryptoPrograms with Online Analyzers
07 Nov 2016
The website CryptoPrograms http://www.cryptoprograms.com is dedicated to create and solve classical ciphers online. New on this site are analyzers for solving classical ciphers without any knowledge of the keyword and, in many cases, the key length. Routines for solving around 40 cipher types are provided.
Read more ... General News
The movie "A Good American" and discussion
07 Nov 2016
The ZKM will perform the recently released interview film "A Good American" by Fritz Moser on 16 December 2016 in Karlsruhe. Details of the event can be found here: http://zkm.de/event/2016/12/sicherheit-oder-datenschutz-ein-falscher-gegensatz Following the documentary "Citizenfour" by Laura Poitras (2014) and the feature film "Snowden" by Oliver Stone (2016), this section now...
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JCrypTool Release Candidate 8 available
03 Oct 2016
JCrypTool 1.0.0 Release Candidate 8 is available for download! This release contains a lot of bugfixes, feature enhancements and new crypto plug-ins. Thanks to all our contributors! All changes are listed on the Core Issues and on the Crypto Issues pages.
Read more ... JCrypTool News General News
Join the #CSCG
02 May 2016
The Cyber Security Challenge Germany (CSCG) is a hacker competition for pupils and students. Starting on 2 May 2016, the young hackers face the 12 online challenges, which have to be solved by the beginning of August. For each challenge the participants can get points. The best 10 pupils and...
Read more ... General News
Student crypto 2016 at the University of Kassel
18 Apr 2016
On 2016-04-18 the fourth student crypto took place at the University of Kassel. As in the previous three years, the student crypto were again a cooperation between the Department 16 Electrical Engineering/Computer Science of the University of Kassel and the Schülerforschungszentrum Nordhessen (SFN). On the student crypto, students and teachers...
Read more ... Schülerkrypto
Anti-Prism Party Season 4 - Protection from surveillance
14 Mar 2016
To conclude the "Global Control and Censorship" exhibition, the Karlsruhe IT Security Initiative (german: "Karlsruher IT-Sicherheitsinitiative", KA-IT-Si), the Competence Center for Applied Security Technology (german: "Kompetenzzentrum für angewandte Sicherheitstechnologie", KASTEL), and the CyberForum e.V. invite you to the 4th season of the Anti-Price Party at the ZKM Karlsruhe on Friday,...
Read more ... General News
Exhibition GLOBAL CONTROL AND CENSORSHIP
14 Mar 2016
The exhibition is for young and old. It opens eyes to worldwide surveillance and censorship, and offers Edward Snowden a fully furnished room, if German politicians and judges have the courage to grant a persecuted and worldwide awarded whistleblower the right to stay. Start Sat, 03.10.2015, end Sun, 07.08.2016.
Read more ... General News
Student crypto 2015 in Kelkheim
06 Nov 2015
On 2015-11-06 the student crypto sponsored by Deutsche Bank took place for the fifth time in the Kelkheimer Eichendorffschule. On the student crypto, teachers and their high school students can learn the science of the secret language (cryptology) and try it out for themselves.
Read more ... Schülerkrypto
Cryptology game CODEBREAKERS.EU — 4th edition
08 Jun 2015
On 1st of June 2015 the first of 6 tasks starts on the Enigma level. For three weeks two times per week new documents with tasks are published. Most important is the time that you need for the final task. Notes, time bonuses and "cryptologic bombs" help to solve the...
Read more ... General News
Student crypto 2015 in Kassel and Hanau
22 Apr 2015
On April 20, 2015, the third student crypto took place at the University of Kassel with over 80 participants. Like last year, this student crypto is a cooperation project between the Department 16 Electrical Engineering/Computer Science of the University of Kassel and the Schülerforschungszentrum Nordhessen (SFN). At the student crypto,...
Read more ... Schülerkrypto
Student crypto 2014 in Kelkheim
14 Nov 2014
On November 14, 2014, the student crypto, sponsored by Deutsche Bank, took place for the fourth time in the Eichendorff Schule in Kelkheim. At the student cryptos, teachers and their high school students can learn the science of the secret language (cryptology) and try it out for themselves.
Read more ... Schülerkrypto
CT 2.0 released
25 Aug 2014
The release version of CrypTool 2.0 was released on 20th Aug 2014. We would be happy if many of you use it for teaching, self-study, education and awareness and give us feedback.
Read more ... CrypTool 2 News General News
Article about solving the Double-Transposition Challenge in Cryptologia
28 Jun 2014
A level X challenge in MysteryTwister C3 by Klaus Schmeh using the double-column transposition cipher withstood a long time against cryptanalysis efforts. Nevertheless, it was solved in November 2013 by George Lasry. The according attack against the double-column transposition cipher was just described in the journal Cryptologia and is now...
Read more ... MysteryTwister C3 News General News
Student crypto 2014 in Kassel
29 Apr 2014
On 2014-04-29, another student crypto took place at the University of Kassel. Like last year, this student crypto was a cooperation project between the Department 16 Electrical Engineering/Computer Science of the University of Kassel and the Schülerforschungszentrum Nordhessen (SFN). At the student crypto, students and teachers of the upper school...
Read more ... Schülerkrypto
Student crypto 2013 at bbz Siegen
17 Dec 2013
On 2013-12-16 - 2013-12-17 the student crypto of the bbz in Siegen took place again. At the student crypto, teachers and their students of the upper school can learn the science of the secret language (cryptology) and try it out for themselves.
Read more ... Schülerkrypto
New CT2 Beta
29 Nov 2013
The 10th Beta of CrypTool 2 was released on 19th October 2013. You are cordially invited to test and give feedback. Final version of CT 2 is planned to be published in July 2014.
Read more ... CrypTool 2 News General News
Student crypto 2013 in Kelkheim
07 Nov 2013
On 2013-11-07 the student crypto, sponsored by Deutsche Bank, took place for the third time in the Eichendorff Schule in Kelkheim. At the student cryptos, teachers and their high school students can learn the science of the secret language (cryptology) and try it out for themselves.
Read more ... Schülerkrypto
Crypdroid - Android app for secure encryption
17 Apr 2013
Crypdroid - Are apps a good idea? Crypdroid encrypts messages with AES and encodes the ciphertext in a way that it could be sent as a normal text message. It is compatible with the dedicated tool within CT2. Smartphone owners visiting the CrypTool project can find cryptographic algorithms on the...
Read more ... General News
Student crypto 2013 in Kassel
15 Apr 2013
On 2013-04-15, the student crypto took place for the first time at the University of Kassel. This student crypto is a cooperation project between the Department 16 Electrical Engineering/Computer Science of the University of Kassel and the Schülerforschungszentrum Nordhessen of the University of Kassel, funded by the Robert Bosch Foundation....
Read more ... Schülerkrypto
Undercover Job - Treasure hunt
07 Mar 2013
A spyhunt consisting of 9 missions - Along with the new Jazz album of the Henning Wolter Trio there is a free online game Undercover Job. Henning Wolter also is the author of two MTC3 challenges Music Code - Part 1 und Music Code - Part 2.
Read more ... General News
New CT2 Beta
02 Jan 2013
The 9th Beta of CrypTool 2 was released on 20th December 2012. You are cordially invited to test and give feedback.
Read more ... CrypTool 2 News General News
Third public beta of CrypTool 1.4.31
26 Jul 2012
The new CrypTool 1.4.31 beta is ready. This version is now available in 6 languages German, English, Spanish, Polish, Serbian and Greek. We would appreciate if you test this beta in detail and give us feedback. The release version of CT 1.4.31 is scheduled for mid 2014.
Read more ... CrypTool 1 News General News
First public beta of CrypTool 1.4.31
26 Jul 2012
The new CrypTool 1.4.31 beta 05 is ready. You are cordially invited to test and give feedback. Final version of CT 1.4.31 is planned to be published mid 2013.
Read more ... CrypTool 1 News General News
Testing RSA moduli for shared prime factors
24 May 2012
The RSA algorithm for public-key cryptography is based on the presumed difficulty of factoring large bi-prime integers, the factoring problem. However, as pointed out in Lenstra et al [1] it is possible, given a set of moduli, to factor some of them by finding shared primes. This way the factoring...
Read more ... General News
Schülerkrypto 2012 of the bbz Siegen
28 Feb 2012
On 2012-02-28 - 2012-03-01 the student crypt of the bbz in Siegen took place again. At the student crypto, teachers and their students of the upper school can learn the science of the secret language (cryptology) and try it out for themselves. The student crypto took place on three days:...
Read more ... Schülerkrypto
New CT-Webportal
20 Jan 2012
The new CrypTool Portal has been gone live on 12th January 2012.
Read more ... CrypTool Portal News General News
Free Cryptography Course from Stanford Professor Dan Boneh
20 Dec 2011
This course explains the inner workings of cryptographic functions and how to correctly use them. The course starts till end of March 2012 and will last at least 5 weeks. Normally, students have to work through the exercises in the same week the lessons are published. You can find more...
Read more ... General News
Announcement for CT1
25 Oct 2011
For CrypTool 1 it is planned to further on release only bugfix versions. The next one is 1.4.31. New features are going into the successors CrypTool 2 and JCrypTool.
Read more ... CrypTool 1 News General News
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