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Fri, 01 Mar 2024 02:20:14 +0000 Received: from smtpav05.dal12v.mail.ibm.com (smtpav05.dal12v.mail.ibm.com [10.241.53.104]) by smtprelay07.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 4212KCTc50856668 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 Mar 2024 02:20:14 GMT Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 691705805D; Fri, 1 Mar 2024 02:20:12 +0000 (GMT) Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E78DB5806A; Fri, 1 Mar 2024 02:20:11 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by smtpav05.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 1 Mar 2024 02:20:11 +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, saulo.alessandre@tse.jus.br, lukas@wunner.de, Stefan Berger Subject: [PATCH v4 05/12] crypto: ecc - Add nbits field to ecc_curve structure Date: Thu, 29 Feb 2024 21:20:00 -0500 Message-ID: <20240301022007.344948-6-stefanb@linux.ibm.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240301022007.344948-1-stefanb@linux.ibm.com> References: <20240301022007.344948-1-stefanb@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: lbfE8AGIA8HsfRveQwKVX843oZn5nxiE X-Proofpoint-ORIG-GUID: lbfE8AGIA8HsfRveQwKVX843oZn5nxiE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-29_08,2024-02-29_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 adultscore=0 lowpriorityscore=0 mlxscore=0 spamscore=0 clxscore=1015 impostorscore=0 priorityscore=1501 bulkscore=0 mlxlogscore=999 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2403010018 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792288804312966816 X-GMAIL-MSGID: 1792288804312966816 Add the number of bits a curve has to the ecc_curve definition and set it on all cruve definitions. Signed-off-by: Stefan Berger --- crypto/ecc_curve_defs.h | 4 ++++ crypto/ecrdsa_defs.h | 5 +++++ include/crypto/ecc_curve.h | 3 +++ 3 files changed, 12 insertions(+) diff --git a/crypto/ecc_curve_defs.h b/crypto/ecc_curve_defs.h index 9719934c9428..ab1ef3d94be5 100644 --- a/crypto/ecc_curve_defs.h +++ b/crypto/ecc_curve_defs.h @@ -17,6 +17,7 @@ static u64 nist_p192_b[] = { 0xFEB8DEECC146B9B1ull, 0x0FA7E9AB72243049ull, 0x64210519E59C80E7ull }; static struct ecc_curve nist_p192 = { .name = "nist_192", + .nbits = 192, .g = { .x = nist_p192_g_x, .y = nist_p192_g_y, @@ -43,6 +44,7 @@ static u64 nist_p256_b[] = { 0x3BCE3C3E27D2604Bull, 0x651D06B0CC53B0F6ull, 0xB3EBBD55769886BCull, 0x5AC635D8AA3A93E7ull }; static struct ecc_curve nist_p256 = { .name = "nist_256", + .nbits = 256, .g = { .x = nist_p256_g_x, .y = nist_p256_g_y, @@ -75,6 +77,7 @@ static u64 nist_p384_b[] = { 0x2a85c8edd3ec2aefull, 0xc656398d8a2ed19dull, 0x988e056be3f82d19ull, 0xb3312fa7e23ee7e4ull }; static struct ecc_curve nist_p384 = { .name = "nist_384", + .nbits = 384, .g = { .x = nist_p384_g_x, .y = nist_p384_g_y, @@ -95,6 +98,7 @@ static u64 curve25519_a[] = { 0x000000000001DB41, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000 }; static const struct ecc_curve ecc_25519 = { .name = "curve25519", + .nbits = 255, .g = { .x = curve25519_g_x, .ndigits = 4, diff --git a/crypto/ecrdsa_defs.h b/crypto/ecrdsa_defs.h index 0056335b9d03..1c2c2449e331 100644 --- a/crypto/ecrdsa_defs.h +++ b/crypto/ecrdsa_defs.h @@ -47,6 +47,7 @@ static u64 cp256a_b[] = { static struct ecc_curve gost_cp256a = { .name = "cp256a", + .nbits = 256, .g = { .x = cp256a_g_x, .y = cp256a_g_y, @@ -80,6 +81,7 @@ static u64 cp256b_b[] = { static struct ecc_curve gost_cp256b = { .name = "cp256b", + .nbits = 256, .g = { .x = cp256b_g_x, .y = cp256b_g_y, @@ -117,6 +119,7 @@ static u64 cp256c_b[] = { static struct ecc_curve gost_cp256c = { .name = "cp256c", + .nbits = 256, .g = { .x = cp256c_g_x, .y = cp256c_g_y, @@ -166,6 +169,7 @@ static u64 tc512a_b[] = { static struct ecc_curve gost_tc512a = { .name = "tc512a", + .nbits = 512, .g = { .x = tc512a_g_x, .y = tc512a_g_y, @@ -211,6 +215,7 @@ static u64 tc512b_b[] = { static struct ecc_curve gost_tc512b = { .name = "tc512b", + .nbits = 512, .g = { .x = tc512b_g_x, .y = tc512b_g_y, diff --git a/include/crypto/ecc_curve.h b/include/crypto/ecc_curve.h index 70964781eb68..337a44956926 100644 --- a/include/crypto/ecc_curve.h +++ b/include/crypto/ecc_curve.h @@ -23,6 +23,8 @@ struct ecc_point { * struct ecc_curve - definition of elliptic curve * * @name: Short name of the curve. + * @nbits: Curves that do not use all bits in their ndigits must specify + * their number of bits here, otherwise can leave at 0. * @g: Generator point of the curve. * @p: Prime number, if Barrett's reduction is used for this curve * pre-calculated value 'mu' is appended to the @p after ndigits. @@ -34,6 +36,7 @@ struct ecc_point { */ struct ecc_curve { char *name; + unsigned int nbits; struct ecc_point g; u64 *p; u64 *n;