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-rw-r--r--src/cryptography/hazmat/backends/openssl/backend.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index ca1aafe0..c0b3afe0 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -1914,6 +1914,9 @@ class Backend(object):
evp_pkey = backend._lib.d2i_PrivateKey_bio(bio.bio, self._ffi.NULL)
self.openssl_assert(evp_pkey != self._ffi.NULL)
evp_pkey = self._ffi.gc(evp_pkey, self._lib.EVP_PKEY_free)
+ self.openssl_assert(
+ self._lib.EVP_PKEY_id(evp_pkey) == self._lib.EVP_PKEY_X25519
+ )
return _X25519PrivateKey(self, evp_pkey)
def x25519_generate_key(self):