[openssl-users] Certificate verification failure

[Yan, Bob]

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? 

-----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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