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| author | Stefan Berger <stefanb@linux.ibm.com> | 2024-04-04 10:18:52 -0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-04-12 15:07:52 +0800 |
| commit | 7dce726ea85ed82d6e70840e3ac68fa13225a3ff (patch) | |
| tree | 7faac57e924d5ec33f36a48d18426a1a865b41ac | |
| parent | bf6dee7b3ce35bb8f1002a1833f42057e0983052 (diff) | |
| download | linux-crypto-7dce726ea85ed82d6e70840e3ac68fa13225a3ff.tar.gz linux-crypto-7dce726ea85ed82d6e70840e3ac68fa13225a3ff.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>
| -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 9b84ab50..75d3eea8 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) |