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| author | Saulo Alessandre <saulo.alessandre@tse.jus.br> | 2021-03-16 17:07:33 -0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-03-26 19:41:58 +1100 |
| commit | 703c748d5f2c4f6d2b494405130d61b8275189cf (patch) | |
| tree | c18473d089a22fd02d5cc7b79de93a30f235ddef | |
| parent | 4e6602916bc692ee31ac5b8bd8195fb078556844 (diff) | |
| download | lwn-703c748d5f2c4f6d2b494405130d61b8275189cf.tar.gz lwn-703c748d5f2c4f6d2b494405130d61b8275189cf.zip | |
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: Saulo Alessandre <saulo.alessandre@tse.jus.br>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/ecc.c | 2 | ||||
| -rw-r--r-- | crypto/ecc_curve_defs.h | 32 | ||||
| -rw-r--r-- | include/crypto/ecdh.h | 1 |
3 files changed, 35 insertions, 0 deletions
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 |