Re: Api's to know the file is signed or encrypted with PKCS7
Hi Stephen, ThanQ for the information. One more doubt of mine is after signing and encryption do we need to use these SMIME funtions ? Is it must ? . what is the use of these SMIME_write_PKCS SMIME_read_PKCS funtions? --Regards shankar On 4/20/08, Dr. Stephen Henson [EMAIL PROTECTED] wrote: On Sun, Apr 20, 2008, shankar ks wrote: Hi all, I am signing and encrypting a file using PKCS7 Api's . I know that file has beec signed and encrypted.. but other person on receiving side how can he knows that the file has been signed and encrypted ? Is there any Api is there by which we can find out whether the file is signed or encrypted.. so that he can decrypt and verify the file .. thanks in advance You can determine the outermost type using macros PKCS7_type_is_signed(), PKCS7_type_is_enveloped(). You then normally have to extract the contents and analyse them in a similar way. There is a field which gives the type of the content but this is set to data if the content in MIME (which it usually is). Steve. -- Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage OpenSSL project core developer and freelance consultant. Homepage: http://www.drh-consultancy.demon.co.uk __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED] -- --Best Regards Shankar
Re: Api's to know the file is signed or encrypted with PKCS7
On Sun, Apr 20, 2008, shankar ks wrote: Hi all, I am signing and encrypting a file using PKCS7 Api's . I know that file has beec signed and encrypted.. but other person on receiving side how can he knows that the file has been signed and encrypted ? Is there any Api is there by which we can find out whether the file is signed or encrypted.. so that he can decrypt and verify the file .. thanks in advance You can determine the outermost type using macros PKCS7_type_is_signed(), PKCS7_type_is_enveloped(). You then normally have to extract the contents and analyse them in a similar way. There is a field which gives the type of the content but this is set to data if the content in MIME (which it usually is). Steve. -- Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage OpenSSL project core developer and freelance consultant. Homepage: http://www.drh-consultancy.demon.co.uk __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
RE: API's ??
Yes, there are. If you look at req.c and genrsa.c, in the apps directory, you can see what API calls wind up being used when you run openssl genrsa ... or openssl req ... Lynn Gazis -Original Message- From: Ruby Cruiser [mailto:[EMAIL PROTECTED]] Sent: Sunday, November 11, 2001 12:12 PM To: [EMAIL PROTECTED] Subject: API's ?? For generating the certifcate and private file, I am currently using the command line interface... that is commands like openssl genrsa ... and openssl req -new -x509... etc. But, are there any openssl API's for the same? If yes, please let me know few APIs. Thanks for the assistance, Ruby __ Do You Yahoo!? Find a job, post your resume. http://careers.yahoo.com __ OpenSSL Project http://www.openssl.org User Support Mailing List[EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED] __ OpenSSL Project http://www.openssl.org User Support Mailing List[EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
