Support key check in EVP interface

[openssl.git] / crypto / evp / pmeth_gn.c

diff --git a/crypto/evp/pmeth_gn.c b/crypto/evp/pmeth_gn.c
index 6adc3a9c19867e84e0fce6ec8bae0f2549cea563..1a927a832029fd9ec8864a23f26c02feb372a985 100644 (file)
--- a/crypto/evp/pmeth_gn.c
+++ b/crypto/evp/pmeth_gn.c
@@ -13,6 +13,7 @@
 #include <openssl/objects.h>
 #include <openssl/evp.h>
 #include "internal/bn_int.h"
+#include "internal/asn1_int.h"
 #include "internal/evp_int.h"
 
 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx)
@@ -167,3 +168,26 @@ EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e,
     EVP_PKEY_CTX_free(mac_ctx);
     return mac_key;
 }
+
+int EVP_PKEY_check(EVP_PKEY_CTX *ctx)
+{
+    EVP_PKEY *pkey = ctx->pkey;
+
+    if (pkey == NULL) {
+        EVPerr(EVP_F_EVP_PKEY_CHECK, EVP_R_NO_KEY_SET);
+        return 0;
+    }
+
+    /* call customized check function first */
+    if (ctx->pmeth->check != NULL)
+        return ctx->pmeth->check(pkey);
+
+    /* use default check function in ameth */
+    if (pkey->ameth == NULL || pkey->ameth->pkey_check == NULL) {
+        EVPerr(EVP_F_EVP_PKEY_CHECK,
+               EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+        return -2;
+    }
+
+    return pkey->ameth->pkey_check(pkey);
+}