A Certificate Authority is the collection of hardware, software, and people responsible for issuing certificates in a hierarchical PKI. CAs may be public, as in SSL / TLS and government IDs, or private, as in corporate infrastructures. The primary responsibility of a public CA is to verify the ...

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101 views

Automate certificate signing in Linux

In a private network I wish to automate signing for new clients/servers. Something like this: New client is created (dockers & etc) The client create a new private key and a CSR The client send ...
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0answers
20 views

SCEP CertRep SUCCESS: how many certs are in the response?

I am working on an SCEP implementation (both requester and authority). The project uses JScep as a library. During the communication for a PKCSReq the client receives a CertRep SUCCESS. The draft ...
2
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1answer
76 views

SSL Client Authentication Failure

I have a setup where the client wants to make https call to the server. The client has a certificate installed on the machine The trust chain of the cert: Root CA      ...
8
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1answer
146 views

Browser blacklists & the Symantec-Google Certification Debacle

Background: As explained e.g. on this Google company blog, Google writes that: On September 14, around 19:20 GMT, Symantec’s Thawte-branded CA issued an Extended Validation (EV) pre-certificate ...
3
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1answer
93 views

Does client Authentication needs the server to have intermediate certificate?

I have a scenario where in the client send send a client certificate issued from trusted root. The path of the client cert is like : Trusted Root |-----Intermediate Issuer |---- ...
2
votes
2answers
60 views

How does Certificate Transparance detect fake or forked logs?

I am trying to understand Certificate Transparency. Let's say I want to snoop on somebody's email. So I go hack or bribe a CA, have them issue a certificate for google.com, and then I present it when ...
6
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2answers
145 views

What is the purpose of Intermediate Certification Authorities store in Windows?

Suppose I have CA1 root certificate and two intermediate CA2 and CA3 certificates issued by CA1. Would it pose any security issue if all of the intermediate certificates were installed in the root ...
2
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0answers
91 views

Client authentication using the pfx not working

I have a requirement to generate the client certificates(pfx) files from another server certificate which are provided by a CA. Firstly I tested the following based on ...
0
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1answer
52 views

Long term trust anchor validation

Let's say someone signs a document for long term validation using a certificate issued by a trusted CA. Throughout the following years, the document is timestamped again and again by multiple trusted ...
1
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1answer
33 views

Can I have CA with JSSE

Maybe the title isn't correct but what I am trying to understand is... I want to create a certificate for my CA which will be self-signed and then create certificates for my clients and my server. ...
1
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1answer
56 views

CRL verification with renewed CA

I would like to understand how is CRL verified and therefore certificate of end entity verified when there is a new certificate and keys of issuing CA renewed. Suppose I have the following setup: ...
0
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1answer
97 views

Reliability of Certificate Authorities and Certificates in 2015

I just happened to stumble upon this Article in Netcraft. The article claims that many of the major CAs have given out hundreds of Certificates to false organizations. Are there any truth to these ...
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2answers
113 views

Where are certificates used to prove identity and why aren't DNS responsible for the job?

I've been reading about how certificates are used to verify the owner of a public key in asymmetric encryption. Right now everything seems really theoretical to me and I'd like to know how this works ...
2
votes
1answer
405 views

Why is google's site identity icon a red lock?

Why does google.com have this icon (see picture) for me? What does it mean? Screenshot: Google.com. There are two lock icons. The top one is RED and the bottom one is green. Screenshot: Google.se. ...
3
votes
2answers
251 views

Is it possible for my employer to replace the root CA on my phone?

I've read about corporate MITM 'attacks' where they replace the root CA on company hardware in order to monitor traffic over SSL that takes place on their network, but is it possible for them to do ...
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votes
1answer
210 views

How to dnsspoof against HTTPS

I am doing a dnsspoof PoC, but apparently it doesn't work with HTTPS because of the certificate. Please don't tell me that I have to generate a certificate or send a legitimate certificate, I want ...
3
votes
1answer
109 views

Understanding the signing and verification process through a CA

I have been researching on this topic and I need to understand the exact signing and verification process when made through a trusted CA. From what I understand, this is how it works at a very high ...
3
votes
2answers
118 views

Is it possible to let a fake certificate appear valid by sending fake OCSP responses?

In a MITM-Attack I can exchange the server certificate by one I created on my own with tools like MITMProxy or SSLSplit. But this only works well when I have installed a fake CA cerrtificate in the ...
1
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2answers
65 views

is it possible to issue a sub-CA and trust it only?

I'm currently a hobbyist trying to learn more about SSL. If I create my own CA for my virtual servers, and trust that CA on my devices, I can then issue certificates for my virtual servers, and my SSL ...
1
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1answer
63 views

What is Autocsr and is it secure?

I read an interesting article about something called autocsr for SSL certs. After reading I still could not figure out how it works. Doesn't generation of CSR happen on my box? The CA won't have ...
0
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0answers
108 views

Appropriate uses for wildcard certificates

I have a client that wants to use a single Wildcard certificate purchased from a third party CA for the purpose of Server Authentication when connecting to and from AD LDS using SSL and for routing ...
2
votes
1answer
121 views

Can an Android malware install a SSL/TLS certificate into non-root devices?

Does there exist some standard API that allow an Android malware to download and install a SSL/TLS certificate as RCA, in the default keystore, in non-root devices? I think that this is a very ...
0
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1answer
43 views

Certificate format

Analyzing some payload I faced up to one which contains a string like this : VeriSign, Inc.10UVeriSign Trust Network1:08U1(c) 2006 VeriSign, Inc. - For authorized use only1E0CU VeriSign Class 3 ...
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6answers
3k views

Is it possible for corporation to intercept and decrypt SSL/TLS traffic? [duplicate]

I found there are some companies claim that they offer service that can eliminate SSL/TLS blind spot, such as Blue Coat and Gigamon. Are they talking about some way of decipher the https content ...
4
votes
0answers
131 views

Windows Certificate Services: Is it possible to enroll a SmartCard certificate AND have key archival?

I'm using ACOS5-64 Client Kit, I want to enroll for a certificate with key archival. I tried to do so by duplicating the SmartCard template and checked Archive subject's encryption private key option ...
7
votes
2answers
705 views

How can CloudFlare provide a valid SSL certificate for domains not under its control?

CloudFlare provides a reverse proxy, and it offers SSL support ("flexible", "full", "strict full", and "keyless"). How does CloudFlare manage to get a valid certificate for domains it does not own? ...
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0answers
53 views

Theory behind certificate for job account

I made it work a job account protected by a certificate in a java spring application but is not that clear to me the minimal steps.(Could you believe that :) I need some theory. Here my steps: ...
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3answers
474 views

Using self-signed certificates for your mail server

I have read multiple Q&A's on this topic from here and other SE sites. They all mention self-signed certs are not recommended due to MITM attacks. However, I haven't found anything with mention of ...
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vote
2answers
190 views

Difference between KMS and PKI

While the PKI System deal with digital certificates life cycle and Key Management System (KMS) deal with keys life cycle. What is the the fundamental difference between them? Is it possible to ...
7
votes
2answers
819 views

One website - two different SSL certificates: two different CA's

I have seen multiple questions focusing on multiple certificates for a single domain (e.g.: a.com/example and a.com/example_one). However, what stops an individual from purchasing a certificate and ...
0
votes
0answers
71 views

Certificate policies extension in Root CA and Issuing CA

I am building new CA chain and PKI and I actually don't fully understand how I should include certificate policies (CP) and certificate practice statements (CPS) as extensions and how to work with it ...
0
votes
0answers
55 views

How to secure a service with Mutual SSL Authentication and Intermediary CA?

Given: A working SSL mutual authentication setup (a WCF service hosted in IIS) No Intermediary CA In the current setup any client in the world having a certificate signed be one of the well known ...
3
votes
1answer
66 views

New certificate but what about the keys?

One of our SSL certificates has expired and along with that so has the keys. I have a re-newed certificate but no re-newed keys. The posting Should I change the private key when renewing a ...
5
votes
1answer
91 views

How can I demonstrate that 3 independent root CAs validated my domain?

I am concerned about the hacking of a root CA and want to buy 3 SSL certs from completely different providers who will independently validate my identity. Then at presentation time, I will send all 3 ...
3
votes
2answers
113 views

Can a website have multiple valid TLS certs looping back to multiple root CAs in case one of them is compromised?

Sometimes, CAs get compromised, like Diginotar or Comodo. In such an incident, anything can happen from individual certs being revoked to the entire tree being scrubbed from the cert store. A company ...
15
votes
5answers
2k views

What is the difference between http and https with a self-signed SSL certificate?

A colleague of mine has told me he doesn't see why there is a warning when visiting a HTTPS website with a self-signed certificate saying that the security may be compromised, but there is no warning ...
2
votes
1answer
145 views

Bi-directional authentication in OpenVPN

I have an OpenVPN gateway setup. A CA was created on the same server with Easy-RSA. Each OpenVPN client has its own certificate-key pair issued with the abovementioned CA. Server has its own ...
4
votes
2answers
80 views

Is it a good practice to use certificates as a mean of client identification in a cloud environment

My software system is running a cloud infrastructure where having Linux machines VPN into OpenVPN gateway is a setup requirement. Also, there may be cases when software on the aforementioned Linux ...
0
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0answers
29 views

How to test rootCA for issue subCA certificate

Can I check rootCA for issue subCA test certificate before issue real subCA cert? If rootCA issue test certificate and revoke immediately, then all operation log is recorded. Do this compliance with ...
1
vote
1answer
24 views

Certificate Policies & Certificate Practice Statements - Destroying Vs. Archiving CA's Private Keys (HSMs)

Please Consider: English is my second language. Background I have been looking at different CP/CPS on the web. They all seem to roughly follow the same practices. However, two different policies ...
15
votes
3answers
2k views

Why are CA-issued certificates considered so much more secure than self-signed certificates

I looked at other Stack Exchange posts explaining why self-signed certificates are not as secure as CA-issued certificates, and most of these pages say the same thing: If it's self-signed, and the ...
1
vote
0answers
263 views

Certificate Transparency, TLS Extension method of serving SCT's

I was curious about how to supply certificate transparency from my web server. There are 3 ways certificate transparency information can be delivered to the client's browser (Source: ...
2
votes
0answers
39 views

Let users sign in with eIDs - do I need government authorisation? (scope: all nation-states)

I've decided to launch a crypto-basic income system. Crypto UBIs are pretty popular now. For me, it seems like an open nation-state ID should exist by now (2015). However, Mike Hearn, Bitcoin ...
1
vote
0answers
90 views

What are the risks of adding third-party Root CA certificate into NTAuth Store?

What are the risks associated with importing a third-party Root CA certificate into the Enterprise NTAuth Store in a Windows Active Directory domain? (Except that the CA is then trusted to issue ...
1
vote
1answer
62 views

Relationship between SSL cert database and that at the CA site

Say I am using a trusted third party CA site to manage my cert. I created a new cert called CertA at the CA web interface, downloaded the signed cert and use it on my web server. Some time later I ...
3
votes
2answers
69 views

Is running a DNSSEC enabled DNS service as hard as running a CA?

I think we all know that running a CA is really hard to get right. Now there's a "new" system that uses digital signatures to associate data with names: DNSSEC. DNSSEC signs the DNS records and ...
3
votes
1answer
332 views

How to generate keystore for root signed certificate?

I need to create keystore and truststore with root signed certificates. I have these files (at this step they are identical for client and for server): client_cert.pem client_prv_key.pem ...
3
votes
1answer
137 views

SSL certificate trust chain shows root certificate with 1024-bit public key - Is this evidence of a MITM attack?

My account at my domain name registrar was hacked and I am trying to understand how the hackers were able to steal my login credentials. Because the root certificate in the trust chain for the ssl ...
2
votes
0answers
70 views

Security implications of CA signed SSL cert for local development

Curious to know the security implications and potential risks involved with getting a CA signed cert for localdev.mydomain.com, and issuing it to all the developers who might need to spin up a local ...
4
votes
1answer
96 views

Browsers root CA accepted, countries and checking fingerprints

This is a question derived from several others, and I can not comment on those, so it is not duplicated, please read: In some related questions some users comment that: "They wouldn't ...