diff --git a/src/common/crypto.c b/src/common/crypto.c
index 5264fd8085..4223b10a7f 100644
--- a/src/common/crypto.c
+++ b/src/common/crypto.c
@@ -326,17 +326,6 @@ _crypto_new_pk_env_rsa(RSA *rsa)
   return env;
 }
 
-/** used by tortls.c: wrap the RSA from an evp_pkey in a crypto_pk_env_t.
- * returns NULL if this isn't an RSA key. */
-crypto_pk_env_t *
-_crypto_new_pk_env_evp_pkey(EVP_PKEY *pkey)
-{
-  RSA *rsa;
-  if (!(rsa = EVP_PKEY_get1_RSA(pkey)))
-    return NULL;
-  return _crypto_new_pk_env_rsa(rsa);
-}
-
 /** Helper, used by tor-checkkey.c and tor-gencert.c.  Return the RSA from a
  * crypto_pk_env_t. */
 RSA *
diff --git a/src/common/crypto.h b/src/common/crypto.h
index 7134956731..05185f3f18 100644
--- a/src/common/crypto.h
+++ b/src/common/crypto.h
@@ -249,7 +249,6 @@ struct evp_pkey_st;
 struct dh_st;
 struct rsa_st *_crypto_pk_env_get_rsa(crypto_pk_env_t *env);
 crypto_pk_env_t *_crypto_new_pk_env_rsa(struct rsa_st *rsa);
-crypto_pk_env_t *_crypto_new_pk_env_evp_pkey(struct evp_pkey_st *pkey);
 struct evp_pkey_st *_crypto_pk_env_get_evp_pkey(crypto_pk_env_t *env,
                                                 int private);
 struct dh_st *_crypto_dh_env_get_dh(crypto_dh_env_t *dh);