We are trying to implement digital signatures in zope application (Plone). Configuration is as follows: Python 2.3.5 / Zope 2.7.8 / Plone 2.1.3 On client side we are using CAPICOM ( so currently restricted to MS-IE, not able to get it working with mozilla based browser) to sign data. We are facing problem in verifying digitally signed data ( by CAPICOM ) on server side. We are using LINUX on server side. So far we have tried M2Crypto/SMIME, pyOpenSSL, SSLCrypto, pyCrypto etc. but no luck. Does any one have experience of implementing digital signature in zope/plone ? Does any one know other OpenSource tool which works with CAPICOM. Any kind of help/pointers/suggestions/comments are very much appreciated. Thank you, Harshad. -- Harshad Behere ZeOmega (www.zeomega.com) Open Minds' Open Solutions 20/21,Rajalakshmi Plaza, South End Road, Basavanagudi Bangalore-560 004 India