diff options
| author | Stefan Berger <stefanb@linux.ibm.com> | 2024-04-04 16:18:52 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-04-12 09:07:52 +0200 |
| commit | dee45a607abbd52fd572622c281010037a85544b (patch) | |
| tree | e098247e293930fad8093b4f92ba1e044653eefc /crypto | |
| parent | crypto: ecc - Add NIST P521 curve parameters (diff) | |
| download | linux-dee45a607abbd52fd572622c281010037a85544b.tar.xz linux-dee45a607abbd52fd572622c281010037a85544b.zip | |
crypto: ecdsa - Replace ndigits with nbits where precision is needed
Replace the usage of ndigits with nbits where precise space calculations
are needed, such as in ecdsa_max_size where the length of a coordinate is
determined.
Tested-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/ecdsa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/ecdsa.c b/crypto/ecdsa.c index 9b84ab503276..75d3eea885db 100644 --- a/crypto/ecdsa.c +++ b/crypto/ecdsa.c @@ -266,7 +266,7 @@ static unsigned int ecdsa_max_size(struct crypto_akcipher *tfm) { struct ecc_ctx *ctx = akcipher_tfm_ctx(tfm); - return ctx->pub_key.ndigits << ECC_DIGITS_TO_BYTES_SHIFT; + return DIV_ROUND_UP(ctx->curve->nbits, 8); } static int ecdsa_nist_p384_init_tfm(struct crypto_akcipher *tfm) |