[PATCH 07/24] openssl: Use uncompressed format for ECC keys

[Juliusz Sosinowicz]

OpenSSL <3.0 uses ECC keys in the uncompressed format. We should keep it that way for compatibility. The wolfSSL backend also uses the uncompressed format.

Signed-off-by: Juliusz Sosinowicz <juliusz at wolfssl.com>
---
 src/crypto/crypto_openssl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/crypto/crypto_openssl.c b/src/crypto/crypto_openssl.c
index 2d8ff60aa9..e83a40b57c 100644
--- a/src/crypto/crypto_openssl.c
+++ b/src/crypto/crypto_openssl.c
@@ -3676,6 +3676,8 @@ struct wpabuf * crypto_ec_key_get_ecprivate_key(struct crypto_ec_key *key,
 				       0);
 		pkey = copy;
 	}
+	EVP_PKEY_set_utf8_string_param(pkey,
+			OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, "uncompressed");
 
 	ctx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection, "DER",
 					    "type-specific", NULL);
-- 
2.34.1