+ /* Update our copy of the origin's packet key */
+
+ if(from->cipherkey)
+ free(from->cipherkey);
+
+ from->cipherkeylen = strlen(cipherkey) / 2;
+ from->cipherkey = xmalloc(from->cipherkeylen);
+ hex2bin(cipherkey, from->cipherkey, from->cipherkeylen);
+
+ if(from->cipherkeylen != gcry_cipher_get_algo_keylen(from->cipher)) {
+ logger(LOG_ERR, _("Node %s (%s) uses wrong keylength %d instead of %d!"), from->name,
+ from->hostname, from->cipherkeylen, gcry_cipher_get_algo_keylen(from->cipher) );
+ return false;
+ }
+
+ if(from->digestkey)
+ free(from->digestkey);
+
+ from->digestlen = strlen(digestkey) / 2;
+ from->digestkey = xmalloc(from->digestlen);
+ hex2bin(digestkey, from->digestkey, from->digestlen);
+
+ if(from->cipher) {
+ int result;
+ result = gcry_cipher_open(&from->cipher_ctx, from->cipher, GCRY_CIPHER_MODE_CBC, GCRY_CIPHER_SECURE);
+ gcry_cipher_setkey(from->cipher_ctx, from->cipherkey, from->cipherkeylen);
+ if(result) {
+ logger(LOG_ERR, _("Error during initialisation of key from %s (%s): %s"),
+ from->name, from->hostname, gcry_strerror(result));
+ return false;
+ }
+ }
+
+ if(from->digest) {
+ int result;
+ result = gcry_md_open(&from->digest_ctx, from->digest, GCRY_MD_FLAG_SECURE | GCRY_MD_FLAG_HMAC);
+ gcry_md_setkey(from->digest_ctx, from->digestkey, from->digestlen);
+ if(result) {