[openssl-users] Certificate verification failure

[Yan, Bob]

Hi Jan,

The problem is due to the mis-matched version between openssl library (used by application) and openssl executable. Basically the CA/Intermediate CA certificate hash is calculated different between two versions.

Thank you for your help!
Bob
    
-----Original Message-----
From: openssl-users [mailto:openssl-users-bounces at openssl.org] On Behalf Of Jan Just Keijser
Sent: Wednesday, February 03, 2016 8:17 AM
To: openssl-users at openssl.org
Subject: Re: [openssl-users] Certificate verification failure

Yan, Bob wrote:
> Thanks Jan,
>
> When I am using the CApath, I do have the symbolic hash link (with ".0" at the end hash) linked to my ca-root.pem certificate file and ca-intermediate.pem certificate. Any other issues which could cause this issue? 
>   
what happens if you run
  openssl verify -CApath <dir>   client.crt

? is that certificate correctly verified?

HTH,

JJK

> -----Original Message-----
> From: openssl-users [mailto:openssl-users-bounces at openssl.org] On 
> Behalf Of Jan Just Keijser
> Sent: Monday, February 01, 2016 1:04 AM
> To: openssl-users at openssl.org
> Subject: Re: [openssl-users] Certificate verification failure
>
> Yan, Bob wrote:
>   
>> Dear Sir/Madam,
>>
>> I have an application which acting as SSL server. When the 
>> application loads the root and intermediate CA files from a CA path, 
>> the handshake between my application and openssl client was failed at 
>> the point when my application was authenticating the client's 
>> certificate. But when I bound the root CA and intermediate CA into a 
>> single pem file and reload it from my application, the handshake is 
>> successful. Could anybody help me resolve this issue? Below is the 
>> sample of my application code for loading the CA certificates:
>>
>> if (SSL_CTX_load_verify_locations(ctx, caFile, caPath) != 1) {
>>
>> exit;
>>
>> }
>>
>> if (SSL_CTX_set_default_verify_paths(ctx) != 1) {
>>
>> exit;
>>
>> }
>>
>> if (SSL_CTX_use_certificate_chain_file(ctx, certFile) != 1) {
>>
>> exit;
>>
>> }
>>
>> if (SSL_CTX_use_PrivateKey_file(ctx, keyFile, SSL_FILETYPE_PEM) != 1) 
>> {
>>
>> exit;
>>
>> }
>>
>> SSL_CTX_set_verify_depth(ctx, chainDepths);
>>
>> SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | 
>> SSL_VERIFY_FAIL_IF_NO_PEER_CERT, callback);
>>
>> SSL_CTX_set_options(ctx, SSL_OP_ALL | SSL_OP_NO_SSLv2);
>>
>>     
>
> when you're using CA path , what are the contents of this CA path directory? In it you should have placed the root and intermediate CA files using special names. Instead of using "ca.pem" you need to have a file "<hash>.0" , where <hash> is the output of "openssl x509 -hash -noout -in ca.pem" (and similarly for the intermediate CA file).
>
> JJK
>
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