How do you validate an cert given a root cert that signed it? I've got this far: 
 $root_x509 = Crypt::OpenSSL::X509->new_from_string(
    $root_key_data, FORMAT_ASN1
);
 $root_key = Crypt::OpenSSL::RSA->new_public_key(
    $x509->pubkey()
);  

 $other_x509 = Crypt::OpenSSL::X509->new_from_string(
    $other_key_data, FORMAT_ASN1
);
 $other_key = Crypt::OpenSSL::RSA->new_public_key(
    $x509->pubkey()
);

[download]
Ok, then what? I'm not seeing an obvious method like $root_key->verify_certificate($other_x509) but not seeing one anywhere. Is Crypt::OpenSSL::VerifyX509 the only/best answer? That module fails unit tests on various platforms, but I'll continue in that vein if it's the way to go. But I feel like I must be missing something since it's such a common task.

In reply to How to validate signature of a RSA/x509 cert in Perl by kgoess

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