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Wed, 29 May 2024 23:08:34 +0000 Received: from smtpav06.wdc07v.mail.ibm.com (smtpav06.wdc07v.mail.ibm.com [10.39.53.233]) by smtprelay05.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 44TN8VoU16056916 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 29 May 2024 23:08:34 GMT Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D57B558055; Wed, 29 May 2024 23:08:31 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1A09058056; Wed, 29 May 2024 23:08:31 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Wed, 29 May 2024 23:08:30 +0000 (GMT) From: Stefan Berger To: keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net Cc: linux-kernel@vger.kernel.org, lukas@wunner.de, jarkko@kernel.org, Stefan Berger Subject: [PATCH 0/2] ecdsa: Use ecc_digits_from_bytes to simplify code Date: Wed, 29 May 2024 19:08:25 -0400 Message-ID: <20240529230827.379111-1-stefanb@linux.ibm.com> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: chh-x652G66ubPkPQruPeqE_g9_7uw5M X-Proofpoint-ORIG-GUID: chh-x652G66ubPkPQruPeqE_g9_7uw5M X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-29_16,2024-05-28_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 impostorscore=0 phishscore=0 mlxlogscore=738 spamscore=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 suspectscore=0 adultscore=0 clxscore=1015 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2405290166 Simplify two functions that were using temporary byte arrays for converting too-short input byte arrays to digits. Use ecc_digits_from_bytes since this function can now handle an input byte array that provides less bytes than what a coordinate of a curve requires - the function provides zeros for the missing (leading) bytes. See: c6ab5c915da4 ("crypto: ecc - Prevent ecc_digits_from_bytes from reading too many bytes") Regards, Stefan Stefan Berger (2): crypto: ecdsa - Use ecc_digits_from_bytes to create hash digits array crypto: ecdsa - Use ecc_digits_from_bytes to convert signature crypto/ecdsa.c | 29 ++++++----------------------- 1 file changed, 6 insertions(+), 23 deletions(-) Reviewed-by: Jarkko Sakkinen