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[v11,03/10] crypto: Add NIST P384 curve parameters

Message ID 20210305205956.3594375-4-stefanb@linux.vnet.ibm.com
State New
Headers show
Series [v11,01/10] oid_registry: Add OIDs for ECDSA with sha224/256/384/512 | expand

Commit Message

Stefan Berger March 5, 2021, 8:59 p.m. UTC
From: Saulo Alessandre <saulo.alessandre@tse.jus.br>

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: Saulo Alessandre <saulo.alessandre@tse.jus.br>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
---
 crypto/ecc.c            |  2 ++
 crypto/ecc_curve_defs.h | 32 ++++++++++++++++++++++++++++++++
 include/crypto/ecdh.h   |  1 +
 3 files changed, 35 insertions(+)

Comments

Jarkko Sakkinen March 10, 2021, 3:36 p.m. UTC | #1
On Fri, Mar 05, 2021 at 03:59:49PM -0500, Stefan Berger wrote:
> From: Saulo Alessandre <saulo.alessandre@tse.jus.br>

> 

> 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: Saulo Alessandre <saulo.alessandre@tse.jus.br>

> Tested-by: Stefan Berger <stefanb@linux.ibm.com>

> ---

>  crypto/ecc.c            |  2 ++

>  crypto/ecc_curve_defs.h | 32 ++++++++++++++++++++++++++++++++

>  include/crypto/ecdh.h   |  1 +

>  3 files changed, 35 insertions(+)

> 

> diff --git a/crypto/ecc.c b/crypto/ecc.c

> index 25e79fd70566..f6cef5a7942d 100644

> --- a/crypto/ecc.c

> +++ b/crypto/ecc.c

> @@ -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;

>  	}

> diff --git a/crypto/ecc_curve_defs.h b/crypto/ecc_curve_defs.h

> index 69be6c7d228f..b327732f6ef5 100644

> --- a/crypto/ecc_curve_defs.h

> +++ b/crypto/ecc_curve_defs.h

> @@ -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

> diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h

> index a5b805b5526d..e4ba1de961e4 100644

> --- a/include/crypto/ecdh.h

> +++ b/include/crypto/ecdh.h

> @@ -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

> -- 

> 2.29.2

> 


Acked-by: Jarkko Sakkinen <jarkko@kernel.org>


/Jarkko
diff mbox series

Patch

diff --git a/crypto/ecc.c b/crypto/ecc.c
index 25e79fd70566..f6cef5a7942d 100644
--- a/crypto/ecc.c
+++ b/crypto/ecc.c
@@ -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;
 	}
diff --git a/crypto/ecc_curve_defs.h b/crypto/ecc_curve_defs.h
index 69be6c7d228f..b327732f6ef5 100644
--- a/crypto/ecc_curve_defs.h
+++ b/crypto/ecc_curve_defs.h
@@ -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
diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h
index a5b805b5526d..e4ba1de961e4 100644
--- a/include/crypto/ecdh.h
+++ b/include/crypto/ecdh.h
@@ -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