Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Stefan Berger <> | Subject | [PATCH v7 09/13] crypto: ecdsa - Replace ndigits with nbits where precision is needed | Date | Wed, 20 Mar 2024 07:47:21 -0400 |
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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.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Tested-by: Lukas Wunner <lukas@wunner.de> --- crypto/ecdsa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/ecdsa.c b/crypto/ecdsa.c index 1814f009f971..4daefb40c37a 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) -- 2.43.0
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