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Questions tagged [smime]

S/MIME (Secure/Multipurpose Internet Mail Extensions) is a standard for public key encryption and signing of MIME data.

291 questions
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Openssl command line fails to verify detached smime signature created moments earlier

I'm using the command line interface of openssl 1.0.1b on OSX 10.6. First I create a DSA key. openssl dsaparam -noout -out privatekey.pem -genkey 1024 Next i create a self-signed certificate from that key. openssl req -new -outform PEM -out…
Kaso
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Save BIO into char* (from SMIME_write_CMS)

I want to save (pipe/copy) a BIO into a char array. When I know the size it works, but otherwise not. For example, I can store the content of my char* into a BIO using this const unsigned char* data = ... myBio = BIO_new_mem_buf((void*)data,…
Chris
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Creating S/MIME from MIME?

I don't completely understand and some documentation or help would be appreciated greatly :) Using PHP I create a MIME by using ezcomponents Mail object. But what I do not understand is: Do you create an S/MIME message from a original MIME by…
Etienne Marais
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How to send encrypted emails with SES

I'm trying to send emails to clients but securely as the contents will contain phone numbers and email addresses. I want to use SES but I need to encrypt the contents of the email while it's in transit. Apparently, S/MIME is an option. As per this…
Jonathan M
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Python - extract certificate from p7s file

Decoding an incoming email in Python, I have an attachment "smime.p7s". If I write this to a file, then it can be extracted and viewed using openssl pkcs7 -inform der -print_certs
tuck1s
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Unable to decrypt p7m using MimeKit

I have located my smime.p7m from my email message, I read it as stream and try to decrypt it using MimeKit, but it failed with Operation is not valid due to the current state of the object. using (MemoryStream ms = new MemoryStream(data)) { …
codenamezero
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Python using M2Crypto signing a message with S/MIME

I spent hours now and I can not find my error. I want a simple routine that creates a S/MIME signed message that could be used with smtplib later. This is, what I have so far: #!/usr/bin/python2.7 # -*- coding: utf-8 -*- from __future__ import…
Christian Rößner
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Can't find class org.bouncycastle.cms.CMSSignedData

I have to load and verify pkcs7 file in java. I found many tutorials that talk about CMSSignedData but I can't find the package org.bouncycastle.cms.*, there is just org.bouncycastle.asn1.cms.* and it doesn't contain the class CMSSignedData. I…
Hakim
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Node.js equivalent to OpenSSL -sign operation

I'm trying to replicate the following operation in Node.js without spawning the OpenSSL command, bc that would require me to write files to disk. I already have the private key, the certificate and the file to be signed in memory, and I'm looking to…
Gaston Elhordoy
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Trying to decrypt S/MIME file using Openssl

I am openssl Newibe. I am trying to write a python script (calling openssl) to decrypt multiple p12 encrypted eml files but failing. I can open them up in Thunderbird fine. here is what i tried: openssl pkcs12 -in keys/pkitepki.p12 -clcerts -nokeys…
Phyo Arkar Lwin
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Tika detect multipart/signed

I'm using Tika to auto detect content type of documents being pushed into a DMS. Almost everything works just fine except for emails. I have to discriminate between standard mail messages (mime => message/rfc822) and signed mail messages (mime =>…
Nicola
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Multiple signatures in S/MIME

Is it possible to sign a MIME email (RFC 2822) multiple times using S/MIME, so that all signatures are verifiable and retrievable?
m0sa
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able to decrypt smime with openssl, but not with python and M2crypto

I have to create a searchable archive of old emails, many of which are encrypted using S/MIME. I can decrypt the .eml files using openssl. This works: openssl smime -decrypt -in mails/example.eml -inkey certs/example.pem However, when I try to do…
user3924220
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Create S/MIME certificates

I am trying to generate S/MIME certificate using the solution provided here: https://serverfault.com/questions/103263/can-i-create-my-own-s-mime-certificate-for-email-encryption Solution: openssl genrsa -des3 -out smime.key 4096 openssl req -new…
gauravhalbe
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C#, Unable to import .p7b certificate to windows store

I'm trying to import certificate (smime) with extension .p7b to windows store. This is the current code X509Certificate2 cert = new X509Certificate2(@"C:\test_public_cert.p7b"); X509Store store = new X509Store(StoreName.AddressBook,…
tong
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