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-rw-r--r--crypto/sm2/sm2_crypt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/sm2/sm2_crypt.c b/crypto/sm2/sm2_crypt.c
index aedf9054c1..d6f9c81d8c 100644
--- a/crypto/sm2/sm2_crypt.c
+++ b/crypto/sm2/sm2_crypt.c
@@ -95,7 +95,7 @@ int sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len,
if (field_size == 0 || md_size < 0)
return 0;
- *ct_size = 10 + 2 * field_size + (size_t)md_size + msg_len;
+ *ct_size = 12 + 2 * field_size + (size_t)md_size + msg_len;
return 1;
}