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| author | Saulo Alessandre <saulo.alessandre@tse.jus.br> | 2021-03-16 17:07:34 -0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-03-26 19:41:58 +1100 |
| commit | 149ca1611d92411b812756475cf471a081dcadad (patch) | |
| tree | 40742486f2b9f2733eb933a00c1934852214ebe0 /crypto/ecc.h | |
| parent | 703c748d5f2c4f6d2b494405130d61b8275189cf (diff) | |
| download | linux-stable-149ca1611d92411b812756475cf471a081dcadad.tar.gz linux-stable-149ca1611d92411b812756475cf471a081dcadad.tar.bz2 linux-stable-149ca1611d92411b812756475cf471a081dcadad.zip | |
crypto: ecc - Add math to support fast NIST P384
Add the math needed for NIST P384 and adapt certain functions'
parameters so that the ecc_curve is passed to vli_mmod_fast. This
allows to identify the curve by its name prefix and the appropriate
function for fast mmod calculation can be used.
Summary of changes:
* crypto/ecc.c
- add vli_mmod_fast_384
- change some routines to pass ecc_curve forward until vli_mmod_fast
* crypto/ecc.h
- add ECC_CURVE_NIST_P384_DIGITS
- change ECC_MAX_DIGITS to P384 size
Signed-off-by: Saulo Alessandre <saulo.alessandre@tse.jus.br>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/ecc.h')
| -rw-r--r-- | crypto/ecc.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/ecc.h b/crypto/ecc.h index e0e2aed0557a..3bee655d437d 100644 --- a/crypto/ecc.h +++ b/crypto/ecc.h @@ -29,7 +29,8 @@ /* One digit is u64 qword. */ #define ECC_CURVE_NIST_P192_DIGITS 3 #define ECC_CURVE_NIST_P256_DIGITS 4 -#define ECC_MAX_DIGITS (512 / 64) +#define ECC_CURVE_NIST_P384_DIGITS 6 +#define ECC_MAX_DIGITS (512 / 64) /* due to ecrdsa */ #define ECC_DIGITS_TO_BYTES_SHIFT 3 |