[RFC PATCH 2/4] crypto: ecdh - allow user to provide NULL privkey
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STALE3441d
SUPERSEDED
From: Tudor Ambarus <hidden>
Date: 2017-05-17 10:39:03
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
Revision rfc of 2 in this series.
Revisions (2)
- rfc current
- v2 [diff vs current]
If the user provides a NULL ecc private key, the kernel will generate it and further use it for ecdh. Signed-off-by: Tudor Ambarus <redacted> --- crypto/ecdh.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/crypto/ecdh.c b/crypto/ecdh.c
index 63ca337..f28f5b5 100644
--- a/crypto/ecdh.c
+++ b/crypto/ecdh.c@@ -55,6 +55,10 @@ static int ecdh_set_secret(struct crypto_kpp *tfm, const void *buf, ctx->curve_id = params.curve_id; ctx->ndigits = ndigits; + if (!params.key || !params.key_size) + return ecc_gen_privkey(ctx->curve_id, ctx->ndigits, + ctx->private_key); + if (ecc_is_key_valid(ctx->curve_id, ctx->ndigits, (const u8 *)params.key, params.key_size) < 0) return -EINVAL;
--
2.7.4