From: Saulo Alessandre saulo.alessandre@tse.jus.br
mainline inclusion from mainline-v5.13-rc1 commit 703c748d5f2c4f6d2b494405130d61b8275189cf category: feature bugzilla: 173981 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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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 Signed-off-by: Mingqiang Ling lingmingqiang@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.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 d1d74a601411..2e39ab4a4053 100644 --- a/crypto/ecc.c +++ b/crypto/ecc.c @@ -58,6 +58,8 @@ 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 d7769ccc4c8e..9719934c9428 100644 --- a/crypto/ecc_curve_defs.h +++ b/crypto/ecc_curve_defs.h @@ -54,6 +54,38 @@ 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 +}; + /* curve25519 */ static u64 curve25519_g_x[] = { 0x0000000000000009, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000 }; diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h index deaaa4822174..a9f98078d29c 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