[openssl-users] Converting a p12 or PEM formatted private key to a PKCS#1 format
openssl-users at dukhovni.org
Thu Sep 3 16:16:04 UTC 2015
On Thu, Sep 03, 2015 at 04:06:06PM +0000, Viktor Dukhovni wrote:
> On Thu, Sep 03, 2015 at 08:21:25AM -0700, tmcclure0501 wrote:
> > We have an embedded MQTT framework that we want to configure for mutual
> > authentication. The framework is complaining that it needs a key format of
> > PKCS#1. We have p12 and pem formats of the key. Does openssl support
> > converting keys to the PKCS#1, if so what is the command?
> I've never heard of a PKCS#1 key format, I'm only aware of
> PKCS#8 - Private key
> PKCS#12 - Private key and related certificates
> Consult the documentation for the product, this is not an OpenSSL
> question until at least the desired key format is known.
Perhaps what you're looking for is the legacy RSA key format (PEM
or DER encoded).
-----BEGIN RSA PRIVATE KEY-----
-----END RSA PRIVATE KEY-----
The "openssl rsa" command (unlike the "pkey" command) outputs RSA
keys in either DER or PEM formats.
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