From: "Jarkko Sakkinen" <jarkko@kernel.org>
To: "Lukas Wunner" <lukas@wunner.de>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
"Eric Biggers" <ebiggers@google.com>,
"Stefan Berger" <stefanb@linux.ibm.com>,
"Vitaly Chikunov" <vt@altlinux.org>,
"Tadeusz Struk" <tstruk@gigaio.com>
Cc: "David Howells" <dhowells@redhat.com>,
"Andrew Zaborowski" <andrew.zaborowski@intel.com>,
"Saulo Alessandre" <saulo.alessandre@tse.jus.br>,
"Jonathan Cameron" <Jonathan.Cameron@huawei.com>,
"Ignat Korchagin" <ignat@cloudflare.com>,
"Marek Behun" <kabel@kernel.org>,
"Varad Gautam" <varadgautam@google.com>,
"Stephan Mueller" <smueller@chronox.de>,
"Denis Kenzior" <denkenz@gmail.com>,
<linux-crypto@vger.kernel.org>, <keyrings@vger.kernel.org>
Subject: Re: [PATCH v2 01/19] crypto: ecdsa - Drop unused test vector elements
Date: Wed, 11 Sep 2024 14:52:27 +0300 [thread overview]
Message-ID: <D43FMJZBP0GO.4TZSB0B03L9E@kernel.org> (raw)
In-Reply-To: <f160f2418c98204817f93339e944529987308b32.1725972334.git.lukas@wunner.de>
On Tue Sep 10, 2024 at 5:30 PM EEST, Lukas Wunner wrote:
> The ECDSA test vectors contain "params", "param_len" and "algo" elements
> even though ecdsa.c doesn't make any use of them. The only algorithm
> implementation using those elements is ecrdsa.c.
I'm missing these pieces of information here at least:
- akcipher.h tells that tail contains OID, parameter blob length and the
blob itself.
- akcipher.h leaves the size of those fields completely *undefined*.
- According to call sites OID and blob length are 32-bit fields.
- According to call sites that I bumped into they are always set to
zero.
- There's no information in the kernel source code that I could fine
for any other rules how the should be set.
Putting random words (of which params_len is not even a word) to quotes
does not really make this whole story obvious. You could just as well
delete the paragraph, because that only makes you look for a struct
that does not even exist.
BR, Jarkko
next prev parent reply other threads:[~2024-09-11 11:52 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-10 14:30 [PATCH v2 00/19] Migrate to sig_alg and templatize ecdsa Lukas Wunner
2024-09-10 14:30 ` Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 01/19] crypto: ecdsa - Drop unused test vector elements Lukas Wunner
2024-09-10 18:49 ` Stefan Berger
2024-09-11 11:52 ` Jarkko Sakkinen [this message]
2024-09-12 7:59 ` Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 02/19] crypto: sig - Introduce sig_alg backend Lukas Wunner
2024-09-11 12:12 ` Jarkko Sakkinen
2024-09-12 7:54 ` Lukas Wunner
2024-09-12 14:19 ` Jarkko Sakkinen
2024-09-12 15:27 ` Lukas Wunner
2024-09-12 17:14 ` Jarkko Sakkinen
2024-11-18 7:56 ` Jarkko Sakkinen
2024-09-13 18:40 ` Jonathan Cameron
2024-09-10 14:30 ` [PATCH v2 03/19] crypto: ecdsa - Migrate to " Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 04/19] crypto: ecrdsa " Lukas Wunner
2024-09-11 12:49 ` Jarkko Sakkinen
2024-09-12 8:05 ` Lukas Wunner
2024-09-12 14:20 ` Jarkko Sakkinen
2024-09-10 14:30 ` [PATCH v2 05/19] crypto: rsa-pkcs1pad - Deduplicate set_{pub,priv}_key callbacks Lukas Wunner
2024-09-10 19:03 ` Stefan Berger
2024-09-11 12:54 ` Jarkko Sakkinen
2024-09-10 14:30 ` [PATCH v2 06/19] crypto: rsassa-pkcs1 - Migrate to sig_alg backend Lukas Wunner
2024-09-11 12:56 ` Jarkko Sakkinen
2024-10-21 16:08 ` Klara Modin
2024-10-21 19:02 ` Lukas Wunner
2024-10-22 10:15 ` Klara Modin
2024-10-23 10:19 ` Klara Modin
2024-10-25 7:17 ` Lukas Wunner
2024-10-25 16:50 ` Eric Biggers
2024-10-26 9:40 ` Klara Modin
2024-10-28 11:45 ` Klara Modin
2024-09-10 14:30 ` [PATCH v2 07/19] crypto: rsassa-pkcs1 - Harden digest length verification Lukas Wunner
2024-09-11 12:58 ` Jarkko Sakkinen
2024-09-10 14:30 ` [PATCH v2 08/19] crypto: rsassa-pkcs1 - Avoid copying hash prefix Lukas Wunner
2024-09-11 13:00 ` Jarkko Sakkinen
2024-09-10 14:30 ` [PATCH v2 09/19] crypto: virtio - Drop sign/verify operations Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 10/19] crypto: drivers " Lukas Wunner
2024-09-10 14:30 ` Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 11/19] crypto: akcipher " Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 12/19] crypto: sig - Move crypto_sig_*() API calls to include file Lukas Wunner
2024-09-10 19:24 ` Stefan Berger
2024-09-10 14:30 ` [PATCH v2 13/19] ASN.1: Clean up include statements in public headers Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 14/19] crypto: ecdsa - Avoid signed integer overflow on signature decoding Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 15/19] crypto: ecdsa - Move X9.62 signature decoding into template Lukas Wunner
2024-09-10 20:46 ` Stefan Berger
2024-09-10 14:30 ` [PATCH v2 16/19] crypto: sig - Rename crypto_sig_maxsize() to crypto_sig_keysize() Lukas Wunner
2024-09-11 13:02 ` Jarkko Sakkinen
2024-09-12 8:12 ` Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 17/19] crypto: ecdsa - Move X9.62 signature size calculation into template Lukas Wunner
2024-09-10 14:30 ` [PATCH v2 18/19] crypto: ecdsa - Support P1363 signature decoding Lukas Wunner
2024-09-10 21:46 ` Stefan Berger
2024-09-10 14:30 ` [PATCH v2 19/19] crypto: ecrdsa - Fix signature size calculation Lukas Wunner
2024-10-01 9:17 ` [PATCH v2 00/19] Migrate to sig_alg and templatize ecdsa Lukas Wunner
2024-10-01 9:17 ` Lukas Wunner
2024-10-05 5:27 ` Herbert Xu
2024-10-05 5:27 ` Herbert Xu
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