From: Lukas Wunner <lukas@wunner.de>
To: Stefan Berger <stefanb@linux.ibm.com>
Cc: keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
herbert@gondor.apana.org.au, davem@davemloft.net,
linux-kernel@vger.kernel.org, saulo.alessandre@tse.jus.br
Subject: Re: [PATCH v3 06/10] crypte: ecc - Implement ecc_curve_get_nbits to get number of bits
Date: Tue, 27 Feb 2024 21:15:52 +0100 [thread overview]
Message-ID: <20240227201552.GA32765@wunner.de> (raw)
In-Reply-To: <20240223204149.4055630-7-stefanb@linux.ibm.com>
On Fri, Feb 23, 2024 at 03:41:45PM -0500, Stefan Berger wrote:
> --- a/include/crypto/internal/ecc.h
> +++ b/include/crypto/internal/ecc.h
> @@ -75,6 +75,17 @@ static inline void ecc_digits_from_bytes(const u8 *in, unsigned int nbytes,
> ecc_swap_digits(tmp, out, ndigits);
> }
>
> +/**
> + * ecc_curve_get_nbits() - Get the number of bits of the curve
> + * @curve: The curve
> + */
> +static inline unsigned int ecc_curve_get_nbits(const struct ecc_curve *curve)
> +{
> + if (curve->nbits)
> + return curve->nbits;
> + return curve->g.ndigits << ECC_DIGITS_TO_BYTES_SHIFT * 8;
> +}
Since you're amending struct ecc_curve with an extra nbits value anyway,
why not statically fill it in for all curves, instead of adding this
extra complexity in the code?
Thanks,
Lukas
next prev parent reply other threads:[~2024-02-27 20:23 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-23 20:41 [PATCH v3 00/10] Add support for NIST P521 to ecdsa Stefan Berger
2024-02-23 20:41 ` [PATCH v3 01/10] crypto: ecdsa - Convert byte arrays with key coordinates to digits Stefan Berger
2024-02-29 9:11 ` Lukas Wunner
2024-02-29 14:57 ` Stefan Berger
2024-02-29 16:48 ` Lukas Wunner
2024-02-29 17:20 ` Stefan Berger
2024-03-01 20:26 ` Jarkko Sakkinen
2024-03-01 20:48 ` Stefan Berger
2024-03-01 20:51 ` Jarkko Sakkinen
2024-03-02 14:00 ` Lukas Wunner
2024-03-02 21:19 ` Stefan Berger
2024-03-02 21:36 ` Lukas Wunner
2024-03-02 21:55 ` Jarkko Sakkinen
2024-02-23 20:41 ` [PATCH v3 02/10] crypto: ecdsa - Adjust tests on length of key parameters Stefan Berger
2024-02-29 9:16 ` Lukas Wunner
2024-02-29 20:28 ` Stefan Berger
2024-02-23 20:41 ` [PATCH v3 03/10] crypto: ecdsa - Extend res.x mod n calculation for NIST P521 Stefan Berger
2024-02-23 20:41 ` [PATCH v3 04/10] crypto: ecc - Implement vli_mmod_fast_521 for NIST p521 Stefan Berger
2024-02-23 20:41 ` [PATCH v3 05/10] crypto: ecc - Add nbits field to ecc_curve structure Stefan Berger
2024-02-23 20:41 ` [PATCH v3 06/10] crypte: ecc - Implement ecc_curve_get_nbits to get number of bits Stefan Berger
2024-02-27 20:15 ` Lukas Wunner [this message]
2024-02-29 20:29 ` Stefan Berger
2024-02-23 20:41 ` [PATCH v3 07/10] crypto: ecc - Use ecc_get_curve_nbits to get number of bits for NIST P521 Stefan Berger
2024-02-23 20:41 ` [PATCH v3 08/10] crypto: ecc - Add NIST P521 curve parameters Stefan Berger
2024-02-23 20:41 ` [PATCH v3 09/10] crypto: ecdsa - Register NIST P521 and extend test suite Stefan Berger
2024-02-23 20:41 ` [PATCH v3 10/10] x509: Add OID for NIST P521 and extend parser for it Stefan Berger
2024-02-29 9:34 ` [PATCH v3 00/10] Add support for NIST P521 to ecdsa Lukas Wunner
2024-02-29 18:45 ` Stefan Berger
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