On Fri, Mar 05, 2021 at 03:59:49PM -0500, Stefan Berger wrote: > From: Saulo Alessandre <saulo.alessan...@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.alessan...@tse.jus.br> > Tested-by: Stefan Berger <stef...@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 <jar...@kernel.org> /Jarkko