Add functions to set values into an EVP_PKEY

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13139)

1 files changed, 104 insertions, 0 deletions

diff --git a/crypto/evp/p_lib.c b/crypto/evp/p_lib.c
index f82e42c7e3..f43f5488d0 100644
--- a/crypto/evp/p_lib.c
+++ b/crypto/evp/p_lib.c
@@ -2138,3 +2138,107 @@ int EVP_PKEY_get_size_t_param(const EVP_PKEY *pkey, const char *key_name,
         return 0;
     return 1;
 }
+
+int EVP_PKEY_set_int_param(EVP_PKEY *pkey, const char *key_name, int in)
+{
+    OSSL_PARAM params[2];
+
+    if (pkey == NULL
+        || pkey->keymgmt == NULL
+        || pkey->keydata == NULL
+        || key_name == NULL)
+        return 0;
+
+    params[0] = OSSL_PARAM_construct_int(key_name, &in);
+    params[1] = OSSL_PARAM_construct_end();
+    return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t in)
+{
+    OSSL_PARAM params[2];
+
+    if (pkey == NULL
+        || pkey->keymgmt == NULL
+        || pkey->keydata == NULL
+        || key_name == NULL)
+        return 0;
+
+    params[0] = OSSL_PARAM_construct_size_t(key_name, &in);
+    params[1] = OSSL_PARAM_construct_end();
+    return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_bn_param(EVP_PKEY *pkey, const char *key_name, BIGNUM *bn)
+{
+    OSSL_PARAM params[2];
+    unsigned char buffer[2048];
+    int bsize = 0;
+
+    if (pkey == NULL
+        || pkey->keymgmt == NULL
+        || pkey->keydata == NULL
+        || key_name == NULL
+        || bn == NULL)
+        return 0;
+
+    bsize = BN_num_bytes(bn);
+    if (!ossl_assert(bsize <= (int)sizeof(buffer)))
+        return 0;
+
+    if (BN_bn2nativepad(bn, buffer, bsize) < 0)
+        return 0;
+    params[0] = OSSL_PARAM_construct_BN(key_name, buffer, bsize);
+    params[1] = OSSL_PARAM_construct_end();
+    return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_utf8_string_param(EVP_PKEY *pkey, const char *key_name,
+                                   char *str)
+{
+    OSSL_PARAM params[2];
+
+    if (pkey == NULL
+        || pkey->keymgmt == NULL
+        || pkey->keydata == NULL
+        || key_name == NULL)
+        return 0;
+
+    params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, 0);
+    params[1] = OSSL_PARAM_construct_end();
+    return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_octet_string_param(EVP_PKEY *pkey, const char *key_name,
+                                    unsigned char *buf, size_t bsize)
+{
+    OSSL_PARAM params[2];
+
+    if (pkey == NULL
+        || pkey->keymgmt == NULL
+        || pkey->keydata == NULL
+        || key_name == NULL)
+        return 0;
+
+    params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, bsize);
+    params[1] = OSSL_PARAM_construct_end();
+    return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+const OSSL_PARAM *EVP_PKEY_settable_params(EVP_PKEY *pkey)
+{
+    if (pkey == NULL
+        || pkey->keymgmt == NULL
+        || pkey->keydata == NULL)
+        return 0;
+    return EVP_KEYMGMT_settable_params(pkey->keymgmt);
+}
+
+int EVP_PKEY_set_params(EVP_PKEY *pkey, OSSL_PARAM params[])
+{
+    if (pkey == NULL
+        || pkey->keymgmt == NULL
+        || pkey->keydata == NULL)
+        return 0;
+    return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}