[ruby/openssl] pkey: deprecate PKey#set_* methods

OpenSSL 3.0 made EVP_PKEY immutable. This means we can only have a const
pointer of the low level struct and the following methods can no longer
be provided when linked against OpenSSL 3.0:

 - OpenSSL::PKey::RSA#set_key
 - OpenSSL::PKey::RSA#set_factors
 - OpenSSL::PKey::RSA#set_crt_params
 - OpenSSL::PKey::DSA#set_pqg
 - OpenSSL::PKey::DSA#set_key
 - OpenSSL::PKey::DH#set_pqg
 - OpenSSL::PKey::DH#set_key
 - OpenSSL::PKey::EC#group=
 - OpenSSL::PKey::EC#private_key=
 - OpenSSL::PKey::EC#public_key=

There is no direct replacement for this functionality at the moment.
I plan to introduce a wrapper around EVP_PKEY_fromdata(), which takes
all key components at once to construct an EVP_PKEY.

https://github.com/ruby/openssl/commit/6848d2d969

1 files changed, 12 insertions, 0 deletions

diff --git a/ext/openssl/ossl_pkey_ec.c b/ext/openssl/ossl_pkey_ec.c
index ff3150dac0..dee215447d 100644
--- a/ext/openssl/ossl_pkey_ec.c
+++ b/ext/openssl/ossl_pkey_ec.c
@@ -248,6 +248,9 @@ ossl_ec_key_get_group(VALUE self)
 static VALUE
 ossl_ec_key_set_group(VALUE self, VALUE group_v)
 {
+#if OSSL_OPENSSL_PREREQ(3, 0, 0)
+    rb_raise(ePKeyError, "pkeys are immutable on OpenSSL 3.0");
+#else
     EC_KEY *ec;
     EC_GROUP *group;
 
@@ -258,6 +261,7 @@ ossl_ec_key_set_group(VALUE self, VALUE group_v)
         ossl_raise(eECError, "EC_KEY_set_group");
 
     return group_v;
+#endif
 }
 
 /*
@@ -286,6 +290,9 @@ static VALUE ossl_ec_key_get_private_key(VALUE self)
  */
 static VALUE ossl_ec_key_set_private_key(VALUE self, VALUE private_key)
 {
+#if OSSL_OPENSSL_PREREQ(3, 0, 0)
+    rb_raise(ePKeyError, "pkeys are immutable on OpenSSL 3.0");
+#else
     EC_KEY *ec;
     BIGNUM *bn = NULL;
 
@@ -305,6 +312,7 @@ static VALUE ossl_ec_key_set_private_key(VALUE self, VALUE private_key)
     }
 
     return private_key;
+#endif
 }
 
 /*
@@ -333,6 +341,9 @@ static VALUE ossl_ec_key_get_public_key(VALUE self)
  */
 static VALUE ossl_ec_key_set_public_key(VALUE self, VALUE public_key)
 {
+#if OSSL_OPENSSL_PREREQ(3, 0, 0)
+    rb_raise(ePKeyError, "pkeys are immutable on OpenSSL 3.0");
+#else
     EC_KEY *ec;
     EC_POINT *point = NULL;
 
@@ -352,6 +363,7 @@ static VALUE ossl_ec_key_set_public_key(VALUE self, VALUE public_key)
     }
 
     return public_key;
+#endif
 }
 
 /*