gpg: New option --key-origin.
[gnupg.git] / g10 / encrypt.c
index 57ac8ad..4b21a61 100644 (file)
@@ -38,6 +38,7 @@
 #include "../common/i18n.h"
 #include "../common/status.h"
 #include "pkglue.h"
+#include "../common/compliance.h"
 
 
 static int encrypt_simple( const char *filename, int mode, int use_seskey );
@@ -485,6 +486,7 @@ encrypt_crypt (ctrl_t ctrl, int filefd, const char *filename,
   progress_filter_context_t *pfx;
   PK_LIST pk_list;
   int do_compress;
+  int compliant;
 
   if (filefd != -1 && filename)
     return gpg_error (GPG_ERR_INV_ARG);  /* Both given.  */
@@ -612,6 +614,53 @@ encrypt_crypt (ctrl_t ctrl, int filefd, const char *filename,
       cfx.dek->algo = opt.def_cipher_algo;
     }
 
+  /* Check compliance.  */
+  if (! gnupg_cipher_is_allowed (opt.compliance, 1, cfx.dek->algo,
+                                 GCRY_CIPHER_MODE_CFB))
+    {
+      log_error (_("you may not use cipher algorithm '%s'"
+                  " while in %s mode\n"),
+                openpgp_cipher_algo_name (cfx.dek->algo),
+                gnupg_compliance_option_string (opt.compliance));
+      rc = gpg_error (GPG_ERR_CIPHER_ALGO);
+      goto leave;
+    }
+
+  compliant = gnupg_cipher_is_compliant (CO_DE_VS, cfx.dek->algo,
+                                         GCRY_CIPHER_MODE_CFB);
+
+  {
+    pk_list_t pkr;
+
+    for (pkr = pk_list; pkr; pkr = pkr->next)
+      {
+        PKT_public_key *pk = pkr->pk;
+        unsigned int nbits = nbits_from_pk (pk);
+
+        if (! gnupg_pk_is_allowed (opt.compliance, PK_USE_ENCRYPTION,
+                                   pk->pubkey_algo, pk->pkey, nbits, NULL))
+          {
+            log_error (_("key %s not suitable for encryption"
+                         " while in %s mode\n"),
+                       keystr_from_pk (pk),
+                       gnupg_compliance_option_string (opt.compliance));
+            rc = gpg_error (GPG_ERR_PUBKEY_ALGO);
+            goto leave;
+          }
+
+        if (compliant
+            && !gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, pk->pkey,
+                                       nbits, NULL))
+          compliant = 0;
+      }
+
+  }
+
+  if (compliant)
+    write_status_strings (STATUS_ENCRYPTION_COMPLIANCE_MODE,
+                          gnupg_status_compliance_flag (CO_DE_VS),
+                          NULL);
+
   cfx.dek->use_mdc = use_mdc (pk_list,cfx.dek->algo);
 
   /* Only do the is-file-already-compressed check if we are using a
@@ -932,7 +981,8 @@ write_pubkey_enc_from_list (ctrl_t ctrl, PK_LIST pk_list, DEK *dek, iobuf_t out)
   if (opt.throw_keyids && (PGP6 || PGP7 || PGP8))
     {
       log_info(_("you may not use %s while in %s mode\n"),
-               "--throw-keyids",compliance_option_string());
+               "--throw-keyids",
+               gnupg_compliance_option_string (opt.compliance));
       compliance_failure();
     }