From: Stefan Berger <stefanb@linux.ibm.com>
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 <stefanb@linux.ibm.com>
Subject: [PATCH v5 04/12] crypto: ecc - Add nbits field to ecc_curve structure
Date: Wed, 6 Mar 2024 17:22:49 -0500 [thread overview]
Message-ID: <20240306222257.979304-5-stefanb@linux.ibm.com> (raw)
In-Reply-To: <20240306222257.979304-1-stefanb@linux.ibm.com>
Add the number of bits a curve has to the ecc_curve definition and set it
on all curve definitions.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Lukas Wunner <lukas@wunner.de>
---
crypto/ecc_curve_defs.h | 4 ++++
crypto/ecrdsa_defs.h | 5 +++++
include/crypto/ecc_curve.h | 2 ++
3 files changed, 11 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..63d5754e7614 100644
--- a/include/crypto/ecc_curve.h
+++ b/include/crypto/ecc_curve.h
@@ -23,6 +23,7 @@ struct ecc_point {
* struct ecc_curve - definition of elliptic curve
*
* @name: Short name of the curve.
+ * @nbits: The number of bits of a curve.
* @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 +35,7 @@ struct ecc_point {
*/
struct ecc_curve {
char *name;
+ unsigned int nbits;
struct ecc_point g;
u64 *p;
u64 *n;
--
2.43.0
next prev parent reply other threads:[~2024-03-06 22:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-06 22:22 [PATCH v4 00/12] Add support for NIST P521 to ecdsa Stefan Berger
2024-03-06 22:22 ` [PATCH v5 01/12] crypto: ecdsa - Convert byte arrays with key coordinates to digits Stefan Berger
2024-03-08 8:41 ` Lukas Wunner
2024-03-08 12:11 ` Stefan Berger
2024-03-06 22:22 ` [PATCH v5 02/12] crypto: ecdsa - Adjust tests on length of key parameters Stefan Berger
2024-03-06 22:22 ` [PATCH v5 03/12] crypto: ecdsa - Extend res.x mod n calculation for NIST P521 Stefan Berger
2024-03-06 22:22 ` Stefan Berger [this message]
2024-03-06 22:22 ` [PATCH v5 05/12] crypto: ecc - Implement vli_mmod_fast_521 for NIST p521 Stefan Berger
2024-03-07 19:11 ` Jarkko Sakkinen
2024-03-07 20:37 ` Stefan Berger
2024-03-11 5:07 ` [EXTERNAL] " Bharat Bhushan
2024-03-11 14:03 ` Stefan Berger
2024-03-11 16:11 ` [EXTERNAL] " Bharat Bhushan
2024-03-06 22:22 ` [PATCH v5 06/12] crypto: ecc - Add special case for NIST P521 in ecc_point_mult Stefan Berger
2024-03-06 22:22 ` [PATCH v5 07/12] crypto: ecc - Add NIST P521 curve parameters Stefan Berger
2024-03-06 22:22 ` [PATCH v5 08/12] crypto: ecdsa - Replace ndigits with nbits where precision is needed Stefan Berger
2024-03-06 22:22 ` [PATCH v5 09/12] crypto: ecdsa - Rename keylen to bufsize where necessary Stefan Berger
2024-03-07 19:13 ` Jarkko Sakkinen
2024-03-07 19:20 ` Stefan Berger
2024-03-08 7:48 ` Vitaly Chikunov
2024-03-06 22:22 ` [PATCH v5 10/12] crypto: ecdsa - Register NIST P521 and extend test suite Stefan Berger
2024-03-06 22:22 ` [PATCH v5 11/12] crypto: asymmetric_keys - Adjust signature size calculation for NIST P521 Stefan Berger
2024-03-06 22:22 ` [PATCH v5 12/12] crypto: x509 - Add OID for NIST P521 and extend parser for it Stefan Berger
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