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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,
	Stefan Berger <stefanb@linux.ibm.com>
Subject: [PATCH v2 06/14] crypto: ecc - Add NIST P521 curve parameters
Date: Thu, 15 Feb 2024 18:14:05 -0500	[thread overview]
Message-ID: <20240215231414.3857320-7-stefanb@linux.ibm.com> (raw)
In-Reply-To: <20240215231414.3857320-1-stefanb@linux.ibm.com>

Add the parameters for the NIST P521 curve and define a new curve ID
for it. Make the curve available in ecc_get_curve.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
---
 crypto/ecc.c            |  2 ++
 crypto/ecc_curve_defs.h | 44 +++++++++++++++++++++++++++++++++++++++++
 include/crypto/ecdh.h   |  1 +
 3 files changed, 47 insertions(+)

diff --git a/crypto/ecc.c b/crypto/ecc.c
index 0734cea284a4..73fbbfc8d69c 100644
--- a/crypto/ecc.c
+++ b/crypto/ecc.c
@@ -60,6 +60,8 @@ const struct ecc_curve *ecc_get_curve(unsigned int curve_id)
 		return &nist_p256;
 	case ECC_CURVE_NIST_P384:
 		return &nist_p384;
+	case ECC_CURVE_NIST_P521:
+		return &nist_p521;
 	default:
 		return NULL;
 	}
diff --git a/crypto/ecc_curve_defs.h b/crypto/ecc_curve_defs.h
index 9719934c9428..93a47a5d460a 100644
--- a/crypto/ecc_curve_defs.h
+++ b/crypto/ecc_curve_defs.h
@@ -86,6 +86,50 @@ static struct ecc_curve nist_p384 = {
 	.b = nist_p384_b
 };
 
+/* NIST P-521 */
+static u64 nist_p521_g_x[] = { 0xf97e7e31c2e5bd66ull, 0x3348b3c1856a429bull,
+				0xfe1dc127a2ffa8deull, 0xa14b5e77efe75928ull,
+				0xf828af606b4d3dbaull, 0x9c648139053fb521ull,
+				0x9e3ecb662395b442ull, 0x858e06b70404e9cdull,
+				0xc6ull };
+static u64 nist_p521_g_y[] = { 0x88be94769fd16650ull, 0x353c7086a272c240ull,
+				0xc550b9013fad0761ull, 0x97ee72995ef42640ull,
+				0x17afbd17273e662cull, 0x98f54449579b4468ull,
+				0x5c8a5fb42c7d1bd9ull, 0x39296a789a3bc004ull,
+				0x118ull };
+static u64 nist_p521_p[] = { 0xffffffffffffffffull, 0xffffffffffffffffull,
+				0xffffffffffffffffull, 0xffffffffffffffffull,
+				0xffffffffffffffffull, 0xffffffffffffffffull,
+				0xffffffffffffffffull, 0xffffffffffffffffull,
+				0x1ffull };
+static u64 nist_p521_n[] = { 0xbb6fb71e91386409ull, 0x3bb5c9b8899c47aeull,
+				0x7fcc0148f709a5d0ull, 0x51868783bf2f966bull,
+				0xfffffffffffffffaull, 0xffffffffffffffffull,
+				0xffffffffffffffffull, 0xffffffffffffffffull,
+				0x1ffull };
+static u64 nist_p521_a[] = { 0xfffffffffffffffcull, 0xffffffffffffffffull,
+				0xffffffffffffffffull, 0xffffffffffffffffull,
+				0xffffffffffffffffull, 0xffffffffffffffffull,
+				0xffffffffffffffffull, 0xffffffffffffffffull,
+				0x1ffull };
+static u64 nist_p521_b[] = { 0xef451fd46b503f00ull, 0x3573df883d2c34f1ull,
+				0x1652c0bd3bb1bf07ull, 0x56193951ec7e937bull,
+				0xb8b489918ef109e1ull, 0xa2da725b99b315f3ull,
+				0x929a21a0b68540eeull, 0x953eb9618e1c9a1full,
+				0x051ull };
+static struct ecc_curve nist_p521 = {
+	.name = "nist_521",
+	.g = {
+		.x = nist_p521_g_x,
+		.y = nist_p521_g_y,
+		.ndigits = 9,
+	},
+	.p = nist_p521_p,
+	.n = nist_p521_n,
+	.a = nist_p521_a,
+	.b = nist_p521_b
+};
+
 /* curve25519 */
 static u64 curve25519_g_x[] = { 0x0000000000000009, 0x0000000000000000,
 				0x0000000000000000, 0x0000000000000000 };
diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h
index a9f98078d29c..9784ecdd2fb4 100644
--- a/include/crypto/ecdh.h
+++ b/include/crypto/ecdh.h
@@ -26,6 +26,7 @@
 #define ECC_CURVE_NIST_P192	0x0001
 #define ECC_CURVE_NIST_P256	0x0002
 #define ECC_CURVE_NIST_P384	0x0003
+#define ECC_CURVE_NIST_P521	0x0004
 
 /**
  * struct ecdh - define an ECDH private key
-- 
2.43.0


  parent reply	other threads:[~2024-02-15 23:14 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-15 23:13 [PATCH v2 00/14] Add support for NIST P521 to ecdsa and ecdh Stefan Berger
2024-02-15 23:14 ` [PATCH v2 01/14] crypto: ecdsa - Convert byte arrays with key coordinates to digits Stefan Berger
2024-02-15 23:14 ` [PATCH v2 02/14] crypto: ecdsa - Adjust tests on length of key parameters Stefan Berger
2024-02-15 23:14 ` [PATCH v2 03/14] crypto: ecdsa - Extend res.x mod n calculation for NIST P521 Stefan Berger
2024-02-15 23:14 ` [PATCH v2 04/14] crypto: ecc - Implement vli_mmod_fast_521 for NIST p521 Stefan Berger
2024-02-15 23:14 ` [PATCH v2 05/14] crypto: ecc - For NIST P521 use vli_num_bits to get number of bits Stefan Berger
2024-02-15 23:14 ` Stefan Berger [this message]
2024-02-16 18:48   ` [PATCH v2 06/14] crypto: ecc - Add NIST P521 curve parameters Elliott, Robert (Servers)
2024-02-16 19:03     ` Stefan Berger
2024-02-15 23:14 ` [PATCH v2 07/14] crypto: ecdsa - Register NIST P521 and extend test suite Stefan Berger
2024-02-15 23:14 ` [PATCH v2 08/14] x509: Add OID for NIST P521 and extend parser for it Stefan Berger
2024-02-15 23:14 ` [PATCH v2 09/14] crypto: ecdh - Use properly formatted digits to check for valid key Stefan Berger
2024-02-15 23:14 ` [PATCH v2 10/14] crypto: ecc - Implement ecc_digits_to_bytes to convert digits to byte array Stefan Berger
2024-02-15 23:14 ` [PATCH v2 11/14] crypto: Add nbits field to ecc_curve structure Stefan Berger
2024-02-15 23:14 ` [PATCH v2 12/14] crypto: ecc - Implement and use ecc_curve_get_nbytes to get curve's nbytes Stefan Berger
2024-02-15 23:14 ` [PATCH v2 13/14] crypto: ecdh - Use functions to copy digits from and to byte array Stefan Berger
2024-02-15 23:14 ` [PATCH v2 14/14] crypto: ecdh - Add support for NIST P521 and add test case Stefan Berger
2024-02-16 19:27 ` [PATCH v2 00/14] Add support for NIST P521 to ecdsa and ecdh Simo Sorce
2024-02-16 19:32   ` Stefan Berger
2024-02-16 19:40     ` Simo Sorce
2024-02-19 14:40       ` Stefan Berger

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