+void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
+ 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 + 16),
+ GET_32BIT_MSB_FIRST(key + 20), &ourkeys[2]);
+ ourkeys[0].iv0 = GET_32BIT_MSB_FIRST(iv);
+ ourkeys[0].iv1 = GET_32BIT_MSB_FIRST(iv+4);
+ des_cbc3_decrypt(blk, blk, len, ourkeys);
+ memset(ourkeys, 0, sizeof(ourkeys));
+}
+
+void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
+ 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 + 16),
+ GET_32BIT_MSB_FIRST(key + 20), &ourkeys[2]);
+ ourkeys[0].iv0 = GET_32BIT_MSB_FIRST(iv);
+ ourkeys[0].iv1 = GET_32BIT_MSB_FIRST(iv+4);
+ des_cbc3_encrypt(blk, blk, len, ourkeys);
+ memset(ourkeys, 0, sizeof(ourkeys));
+}
+
+static const struct ssh2_cipher ssh_3des_ssh2 = {
+ des3_make_context, des3_free_context, des3_iv, des3_key,
+ des3_ssh2_encrypt_blk, des3_ssh2_decrypt_blk,