Mailing List Archive: GnuPG: users

keytocard: bad secret key

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boson at z1p

Jul 10, 2012, 12:22 PM

Post #1 of 2 (105 views)
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keytocard: bad secret key

I'm trying to save a 4096 bit RSA key to my OpenPGP smartcard v2.0 but I get an error about a "bad secret key".

I use Ubuntu 10.04 with a self-compiled GnuPG 2.0.19

Verbose-mode doesn't tell more details and according to Google I am the only one with that problem...

Does anyone know what's wrong?

Regards

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ml-gpg at m-privacy

Jul 11, 2012, 3:15 AM

Post #2 of 2 (96 views)
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Re: keytocard: bad secret key [In reply to]

Am 10.07.2012 21:22, schrieb boson [at] z1p:
> I'm trying to save a 4096 bit RSA key to my OpenPGP smartcard v2.0 but I get an error about a "bad secret key".
>
> I use Ubuntu 10.04 with a self-compiled GnuPG 2.0.19
>
> Verbose-mode doesn't tell more details and according to Google I am the only one with that problem...

You should check if your smartcard reader can handle "extended APDU" as
described here: http://pcsclite.alioth.debian.org/ccid.html

I had only success with extended APDU readers with 4096bit keys.

Roman

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