Mailing List Archive: GnuPG: gcrypt

loading a private rsa key with libgcrypt

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jlueters at intranet-engineering

May 5, 2006, 10:07 AM

Post #1 of 3 (1326 views)
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loading a private rsa key with libgcrypt

Hi,

i have a project in which a private rsa key has to used in order to sign
a string. I would like to use libgcrypt.
After reading the documentation i have found the procedure
"gcry_ac_key_init". Unfortunaltely i can not find out how to prepare a
private rsa-key-file (file.pem) in a way usable for that function.

Is there any documentation or example code which shows how to load a pem
file and transform it into a suitable data set?

Regards

--
Juergen Lueters <jlueters [at] intranet-engineering>

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mo at g10code

May 6, 2006, 2:44 AM

Post #2 of 3 (1256 views)
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Re: loading a private rsa key with libgcrypt [In reply to]

On Fri, 2006-05-05 at 19:07 +0200, Juergen Lueters wrote:

Hello Jurgen,

> Is there any documentation or example code which shows how to load a pem
> file and transform it into a suitable data set?

as you probably have noticed yourself already: Libgcrypt does not
contain code for handling PEM blobs. I guess you could extract
appropriate code from other crypto tools, able of parsing PEM.

Moritz

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wk at gnupg

May 9, 2006, 8:06 AM

Post #3 of 3 (1256 views)
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Re: loading a private rsa key with libgcrypt [In reply to]

Juergen Lueters <jlueters [at] intranet-engineering> writes:

> Is there any documentation or example code which shows how to load a pem
> file and transform it into a suitable data set?

checkout gnupg 1.9: agent/protect-tool.c as similar code.

Shalom-Salam,

Werner

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