From: Michael Olbrich <m.olbrich@pengutronix.de>
To: ptxdist@pengutronix.de
Subject: Re: [ptxdist] [PATCH 2/2] dropbear: Added Elliptic Curve Cryptography options.
Date: Tue, 10 Jun 2014 07:49:42 +0200 [thread overview]
Message-ID: <20140610054942.GF4904@pengutronix.de> (raw)
In-Reply-To: <1401781658-20585-2-git-send-email-bth@kamstrup.dk>
On Tue, Jun 03, 2014 at 09:47:38AM +0200, Bruno Thomsen wrote:
> Support for ecdsa, ecdh and curve25519-donna options.
>
> Signed-off-by: Bruno Thomsen <bth@kamstrup.dk>
> ---
> rules/dropbear.in | 27 +++++++++++++++++++++++++++
> rules/dropbear.make | 24 ++++++++++++++++++++++++
> 2 files changed, 51 insertions(+)
>
> diff --git a/rules/dropbear.in b/rules/dropbear.in
> index 21301ba..c99d432 100644
> --- a/rules/dropbear.in
> +++ b/rules/dropbear.in
> @@ -288,6 +288,33 @@ config DROPBEAR_DSS
> key size). In contrast, RSA signature length is a function
> of the key length employed.
>
> +config DROPBEAR_ECDSA
> + bool
> + prompt "ecdsa"
> + default n
drop this line. It's redundant.
> + help
> + ECDSA stands for Elliptic Curve Digital Signature Algorithm.
> + ECDSA is significantly faster than RSA or DSS.
> +
> +config DROPBEAR_ECDH
> + bool
> + prompt "ecdh"
> + default n
Here as well.
> + help
> + ECDH stands for Elliptic Curve Diffie-Hellman.
> +
> +config DROPBEAR_CURVE25519
> + bool
> + depends on DROPBEAR_ECDSA || DROPBEAR_ECDH
> + prompt "curve25519-donna"
> + default n
And here.
Michael
> + help
> + Enable curve25519-donna for key exchange.
> + This is another elliptic curve method with good security properties.
> + This algorithm does not rely on NIST-based curves
> + and gives us more security confidence against a possible
> + backdoor in nistp-256 curve.
> +
> comment "Authentication types, at least one required --- RFC Draft requires pubkey auth"
>
> config DROPBEAR_PASSWD
> diff --git a/rules/dropbear.make b/rules/dropbear.make
> index 5ab6fd3..5cbd4aa 100644
> --- a/rules/dropbear.make
> +++ b/rules/dropbear.make
> @@ -222,6 +222,30 @@ else
> @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_DSS)
> endif
>
> +ifdef PTXCONF_DROPBEAR_ECDSA
> + @echo "ptxdist: enabling ecdsa"
> + @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDSA)
> +else
> + @echo "ptxdist: disabling ecdsa"
> + @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDSA)
> +endif
> +
> +ifdef PTXCONF_DROPBEAR_ECDH
> + @echo "ptxdist: enabling ecdh"
> + @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDH)
> +else
> + @echo "ptxdist: disabling ecdh"
> + @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDH)
> +endif
> +
> +ifdef PTXCONF_DROPBEAR_CURVE25519
> + @echo "ptxdist: enabling curve25519"
> + @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_CURVE25519)
> +else
> + @echo "ptxdist: disabling curve25519"
> + @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_CURVE25519)
> +endif
> +
> ifdef PTXCONF_DROPBEAR_PASSWD
> @echo "ptxdist: enabling passwd"
> @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_PASSWORD_AUTH)
> --
> 1.7.9.5
>
>
> --
> ptxdist mailing list
> ptxdist@pengutronix.de
>
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next prev parent reply other threads:[~2014-06-10 5:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-03 7:47 [ptxdist] [PATCH 1/2] dropbear: version bump 2013.60 -> 2014.63 Bruno Thomsen
2014-06-03 7:47 ` [ptxdist] [PATCH 2/2] dropbear: Added Elliptic Curve Cryptography options Bruno Thomsen
2014-06-10 5:49 ` Michael Olbrich [this message]
2014-06-13 6:47 ` [ptxdist] [PATCH 1/2] dropbear: version bump 2013.60 -> 2014.63 Michael Olbrich
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