PuTTYgen initial version. Still to do are basic user-friendliness

[u/mdw/putty] / sshdes.c

diff --git a/sshdes.c b/sshdes.c
index 67d91c7..1be340c 100644 (file)
--- a/sshdes.c
+++ b/sshdes.c
@@ -778,6 +778,18 @@ void des3_decrypt_pubkey(unsigned char *key,
     des_3cbc_decrypt(blk, blk, len, ourkeys);
 }
 
+void des3_encrypt_pubkey(unsigned char *key,
+                         unsigned char *blk, int len) {
+    DESContext ourkeys[3];
+    des_key_setup(GET_32BIT_MSB_FIRST(key),
+                  GET_32BIT_MSB_FIRST(key+4), &ourkeys[0]);
+    des_key_setup(GET_32BIT_MSB_FIRST(key+8),
+                  GET_32BIT_MSB_FIRST(key+12), &ourkeys[1]);
+    des_key_setup(GET_32BIT_MSB_FIRST(key),
+                  GET_32BIT_MSB_FIRST(key+4), &ourkeys[2]);
+    des_3cbc_encrypt(blk, blk, len, ourkeys);
+}
+
 struct ssh_cipher ssh_3des_ssh2 = {
     NULL,
     des3_csiv, des3_cskey,