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kex: implement curve25519-sha256@libssh.org

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This commit is contained in:
Aris Adamantiadis
2013-09-21 23:34:50 +02:00
parent 4eae4d592c
commit 4cb6afcbd4
9 changed files with 404 additions and 6 deletions
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13
src/dh.c
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@@ -770,6 +770,18 @@ int make_sessionid(ssh_session session) {
if (rc < 0) {
goto error;
}
#endif
#ifdef HAVE_CURVE25519
} else if(session->next_crypto->kex_type == SSH_KEX_CURVE25519_SHA256_LIBSSH_ORG){
rc = buffer_add_u32(buf, htonl(CURVE25519_PUBKEY_SIZE));
rc += buffer_add_data(buf, session->next_crypto->curve25519_client_pubkey,
CURVE25519_PUBKEY_SIZE);
rc += buffer_add_u32(buf, htonl(CURVE25519_PUBKEY_SIZE));
rc += buffer_add_data(buf, session->next_crypto->curve25519_server_pubkey,
CURVE25519_PUBKEY_SIZE);
if (rc != SSH_OK) {
goto error;
}
#endif
}
num = make_bignum_string(session->next_crypto->k);
@@ -800,6 +812,7 @@ int make_sessionid(ssh_session session) {
session->next_crypto->secret_hash);
break;
case SSH_KEX_ECDH_SHA2_NISTP256:
case SSH_KEX_CURVE25519_SHA256_LIBSSH_ORG:
session->next_crypto->digest_len = SHA256_DIGEST_LENGTH;
session->next_crypto->mac_type = SSH_MAC_SHA256;
session->next_crypto->secret_hash = malloc(session->next_crypto->digest_len);