Commit 703c748d authored by Saulo Alessandre's avatar Saulo Alessandre Committed by Herbert Xu
Browse files

crypto: ecc - Add NIST P384 curve parameters 



Add the parameters for the NIST P384 curve and define a new curve ID
for it. Make the curve available in ecc_get_curve.

Summary of changes:

* crypto/ecc_curve_defs.h
  - add nist_p384 params

* include/crypto/ecdh.h
  - add ECC_CURVE_NIST_P384

* crypto/ecc.c
  - change ecc_get_curve to accept nist_p384

Signed-off-by: default avatarSaulo Alessandre <saulo.alessandre@tse.jus.br>
Tested-by: default avatarStefan Berger <stefanb@linux.ibm.com>
Acked-by: default avatarJarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4e660291

crypto/ecc.c

+2 −0
Original line number Diff line number Diff line
@@ -50,6 +50,8 @@ const struct ecc_curve *ecc_get_curve(unsigned int curve_id) 
		return fips_enabled ? NULL : &nist_p192;

	case ECC_CURVE_NIST_P256:

		return &nist_p256;

	case ECC_CURVE_NIST_P384:

		return &nist_p384;

	default:

		return NULL;

	}

crypto/ecc_curve_defs.h

+32 −0
Original line number Diff line number Diff line
@@ -54,4 +54,36 @@ static struct ecc_curve nist_p256 = { 
	.b = nist_p256_b

};



/* NIST P-384 */

static u64 nist_p384_g_x[] = { 0x3A545E3872760AB7ull, 0x5502F25DBF55296Cull,

				0x59F741E082542A38ull, 0x6E1D3B628BA79B98ull,

				0x8Eb1C71EF320AD74ull, 0xAA87CA22BE8B0537ull };

static u64 nist_p384_g_y[] = { 0x7A431D7C90EA0E5Full, 0x0A60B1CE1D7E819Dull,

				0xE9DA3113B5F0B8C0ull, 0xF8F41DBD289A147Cull,

				0x5D9E98BF9292DC29ull, 0x3617DE4A96262C6Full };

static u64 nist_p384_p[] = { 0x00000000FFFFFFFFull, 0xFFFFFFFF00000000ull,

				0xFFFFFFFFFFFFFFFEull, 0xFFFFFFFFFFFFFFFFull,

				0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };

static u64 nist_p384_n[] = { 0xECEC196ACCC52973ull, 0x581A0DB248B0A77Aull,

				0xC7634D81F4372DDFull, 0xFFFFFFFFFFFFFFFFull,

				0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };

static u64 nist_p384_a[] = { 0x00000000FFFFFFFCull, 0xFFFFFFFF00000000ull,

				0xFFFFFFFFFFFFFFFEull, 0xFFFFFFFFFFFFFFFFull,

				0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };

static u64 nist_p384_b[] = { 0x2a85c8edd3ec2aefull, 0xc656398d8a2ed19dull,

				0x0314088f5013875aull, 0x181d9c6efe814112ull,

				0x988e056be3f82d19ull, 0xb3312fa7e23ee7e4ull };

static struct ecc_curve nist_p384 = {

	.name = "nist_384",

	.g = {

		.x = nist_p384_g_x,

		.y = nist_p384_g_y,

		.ndigits = 6,

	},

	.p = nist_p384_p,

	.n = nist_p384_n,

	.a = nist_p384_a,

	.b = nist_p384_b

};



#endif

include/crypto/ecdh.h

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
/* Curves IDs */

#define ECC_CURVE_NIST_P192	0x0001

#define ECC_CURVE_NIST_P256	0x0002

#define ECC_CURVE_NIST_P384	0x0003



/**

 * struct ecdh - define an ECDH private key