tag:blogger.com,1999:blog-6078948329797457697.post9209951165363598159..comments2023-06-01T04:28:35.021-07:00Comments on tecknolojia: Using ASN.1 Notation DER Encoded ECDSA Signature in BC Lightweight APIHimanshuhttp://www.blogger.com/profile/16378792853389299314noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-6078948329797457697.post-3849334133523322072010-05-10T22:27:03.208-07:002010-05-10T22:27:03.208-07:00Hi Jack, Go the Bouncy Castle website where you ca...Hi Jack, Go the Bouncy Castle website where you can download a security library for J2ME. It also contains a sample MIDLET. Under a folder that contains test programs, you will also find a file called ECIESTest.java which performs ECIES using J2ME. <br /><br />Also, yes, J2ME includes some classes that are not part of J2SE. Bouncy castle includes classes such class within their library. Hence, this would require you to "obfuscate" your code. Check my post here: http://tecknolojia.blogspot.com/2008/01/getting-your-j2me-project-working-with.htmlHimanshuhttps://www.blogger.com/profile/16378792853389299314noreply@blogger.comtag:blogger.com,1999:blog-6078948329797457697.post-45411595623248598872010-05-10T13:12:20.619-07:002010-05-10T13:12:20.619-07:00I am a student and are new to Cryptographie and I ...I am a student and are new to Cryptographie and I am interested in ciphers like ECC (elliptic curve cryptography) to encrypt and decrypt text, but I need them to work on my mobile phone to test the performance on the phone, the most codes I found on the web are not fully suported on J2ME(some classes from JavaSE are not suported in JavaME and i just can't fix that problem, it's driving me crazy...), do you got some cut-downjava code written just in J2ME for ECC or maybe a mobile midlet of that kind that works? Or du you know where can I find them?<br />I really need help ;) Thank U!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6078948329797457697.post-88633872517357423302010-05-10T13:11:04.668-07:002010-05-10T13:11:04.668-07:00I am a student and are new to Cryptographie and I ...I am a student and are new to Cryptographie and I am interested in ciphers like ECC (elliptic curve cryptography) to encrypt and decrypt text, but I need them to work on my mobile phone to test the performance on the phone, the most codes I found on the web are not fully suported on J2ME(some classes from JavaSE are not suported in JavaME and i just can't fix that problem, it's driving me crazy...), do you got some cut-downjava code written just in J2ME for ECC or maybe a mobile midlet of that kind that works? Or du you know where can I find them?<br />I really need help ;) Thank U!jacknoreply@blogger.comtag:blogger.com,1999:blog-6078948329797457697.post-58834004504802434952008-09-17T18:08:00.000-07:002008-09-17T18:08:00.000-07:00Hey, I did not quite understand your question. Did...Hey, I did not quite understand your question. Did you get some errors which said java system classes not being allowed. If yes, you need obfuscation. Check out http://tecknolojia.blogspot.com/2008/01/getting-your-j2me-project-working-with.html or reply to this comment here. There are also open source obfuscators if you do not use an IDEHimanshuhttps://www.blogger.com/profile/16378792853389299314noreply@blogger.comtag:blogger.com,1999:blog-6078948329797457697.post-74551810184909729382008-09-17T14:48:00.000-07:002008-09-17T14:48:00.000-07:00Hi there, I am working in implementing ECDSA to j2...Hi there, <BR/><BR/>I am working in implementing ECDSA to j2me platform. Currently I have some problems with the bouncycastle cldc-classes.zip. It got to be missed with some class in java package. I need to Generate public key and private key in j2me mobile device, and then sign it to send it via http.Unknownhttps://www.blogger.com/profile/07076662403582146326noreply@blogger.comtag:blogger.com,1999:blog-6078948329797457697.post-64422993014740818332008-08-18T22:24:00.000-07:002008-08-18T22:24:00.000-07:00Hi Yunpu...Good to hear from you....Let me know if...Hi Yunpu...Good to hear from you....Let me know if there is something particular you are looking for. I worked on a mobile security project for one year using ECDH, ECDSA and ECIES. However, my knowledge of ECC is brief and was restricted to its advantages, disadv, and knowing how to use it correctly. You should check out the bouncycastle user lists.Himanshuhttps://www.blogger.com/profile/16378792853389299314noreply@blogger.comtag:blogger.com,1999:blog-6078948329797457697.post-65219992682005860702008-08-18T19:10:00.000-07:002008-08-18T19:10:00.000-07:00Hi there,This is a very interesting topic for me. ...Hi there,<BR/>This is a very interesting topic for me. I am currently involved in a research in ECDSA employed in Java ME. I'll keep an eye on your blog.Anonymousnoreply@blogger.com