On 08/14/2013 05:37 PM, Dave Thompson wrote:
From: [email protected] On Behalf Of Robert Moskowitz Sent: Wednesday, 14 August, 2013 15:49 I have a CA cert in pem format that uses ecdsa. I have tried to display the contents with:openssl x509 -in x509-ca.pem -text -nameopt multiline -noout I get errors: Subject Public Key Info: Public Key Algorithm: id-ecPublicKey Unable to load Public Key 140661212006240:error:0609E09C:digital envelope routines:PKEY_SET_TYPE:unsupported algorithm:p_lib.c:239: 140661212006240:error:0B07706F:x509 certificate routines:X509_PUBKEY_get:unsupported algorithm:x_pubkey.c:155: Is there an option I need to add? Is there something special with this cert's Public Key Algorithm?I'm pretty sure not. OpenSSL versions before 1.0.0 needed a cipherstring option to use ECC suites *in SSL/TLS protocol*, but local operations have worked as long as I remember. What version of OpenSSL are you running, and how was it built? In particular was it from official source, or patched?
I am running Fedora 16, standard biuld stuff. Yes, I know it is time to upgrade...
Openssl seems to be 1.0.0.k-1 per the yum log (I tried a -v option, but that does not seem to be supporte, nor --version).
The fellow that sent me the .pem has 1.0.1c-10 and was able to send me the dump of the cert and the PK algorithm is id-ecPublicKey and the ASN1 OID: prime256v1
So now at least I can move forward reviewing what they are doing with this cert, but it would be nice to be able to display it myself.
A couple of remote possibilities: do you have your openssl.cnf set (editted) to load an "engine", which doesn't support ECC? I didn't think this level of parsing goes to an engine, but I could be wrong. Do you have a FIPS-capable build and a setting to force FIPS mode? FIPS should allow ECC (it is NIST "Approved"), but something might be broken. Can you try the same file with a different OpenSSL version or build -- often easiest by using a different system? ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [email protected] Automated List Manager [email protected]
______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [email protected] Automated List Manager [email protected]
