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authorPaul Selkirk <paul@psgd.org>2018-02-27 18:04:39 +0100
committerPaul Selkirk <paul@psgd.org>2018-02-27 18:04:39 +0100
commitb26b375956a0f5b472b9b7f180ee78b0c64fc256 (patch)
treeaf6a7b111b799de01053e84e153f299f554237b1 /rpc_client.c
parent3f374757fdfde32abceb88adca31d21f2b05cab1 (diff)
Implement hash-based signatures, per draft-mcgrew-hash-sigs-08.txt
Diffstat (limited to 'rpc_client.c')
-rw-r--r--rpc_client.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/rpc_client.c b/rpc_client.c
index bb63448..2fb8ae6 100644
--- a/rpc_client.c
+++ b/rpc_client.c
@@ -38,6 +38,7 @@
#include "hal.h"
#include "hal_internal.h"
#include "xdr_internal.h"
+#include "hashsig.h"
#ifndef HAL_RPC_CLIENT_DEBUG
#define HAL_RPC_CLIENT_DEBUG 0
@@ -544,6 +545,44 @@ static hal_error_t pkey_remote_generate_ec(const hal_client_handle_t client,
return rpc_ret;
}
+static hal_error_t pkey_remote_generate_hashsig(const hal_client_handle_t client,
+ const hal_session_handle_t session,
+ hal_pkey_handle_t *pkey,
+ hal_uuid_t *name,
+ const size_t hss_levels,
+ const lms_algorithm_t lms_type,
+ const lmots_algorithm_t lmots_type,
+ const hal_key_flags_t flags)
+{
+ uint8_t outbuf[nargs(7)], *optr = outbuf, *olimit = outbuf + sizeof(outbuf);
+ uint8_t inbuf[nargs(5) + pad(sizeof(name->uuid))];
+ const uint8_t *iptr = inbuf, *ilimit = inbuf + sizeof(inbuf);
+ size_t name_len = sizeof(name->uuid);
+ hal_error_t rpc_ret;
+
+ check(hal_xdr_encode_int(&optr, olimit, RPC_FUNC_PKEY_GENERATE_HASHSIG));
+ check(hal_xdr_encode_int(&optr, olimit, client.handle));
+ check(hal_xdr_encode_int(&optr, olimit, session.handle));
+ check(hal_xdr_encode_int(&optr, olimit, (uint32_t)hss_levels));
+ check(hal_xdr_encode_int(&optr, olimit, (uint32_t)lms_type));
+ check(hal_xdr_encode_int(&optr, olimit, (uint32_t)lmots_type));
+ check(hal_xdr_encode_int(&optr, olimit, flags));
+ check(hal_rpc_send(outbuf, optr - outbuf));
+
+ check(read_matching_packet(RPC_FUNC_PKEY_GENERATE_HASHSIG, inbuf, sizeof(inbuf), &iptr, &ilimit));
+
+ check(hal_xdr_decode_int(&iptr, ilimit, &rpc_ret));
+
+ if (rpc_ret == HAL_OK) {
+ check(hal_xdr_decode_int(&iptr, ilimit, &pkey->handle));
+ check(hal_xdr_decode_variable_opaque(&iptr, ilimit, name->uuid, &name_len));
+ if (name_len != sizeof(name->uuid))
+ return HAL_ERROR_KEY_NAME_TOO_LONG;
+ }
+
+ return rpc_ret;
+}
+
static hal_error_t pkey_remote_close(const hal_pkey_handle_t pkey)
{
uint8_t outbuf[nargs(3)], *optr = outbuf, *olimit = outbuf + sizeof(outbuf);
@@ -1095,6 +1134,7 @@ const hal_rpc_pkey_dispatch_t hal_rpc_remote_pkey_dispatch = {
.open = pkey_remote_open,
.generate_rsa = pkey_remote_generate_rsa,
.generate_ec = pkey_remote_generate_ec,
+ .generate_hashsig = pkey_remote_generate_hashsig,
.close = pkey_remote_close,
.delete = pkey_remote_delete,
.get_key_type = pkey_remote_get_key_type,
@@ -1117,6 +1157,7 @@ const hal_rpc_pkey_dispatch_t hal_rpc_mixed_pkey_dispatch = {
.open = pkey_remote_open,
.generate_rsa = pkey_remote_generate_rsa,
.generate_ec = pkey_remote_generate_ec,
+ .generate_hashsig = pkey_remote_generate_hashsig,
.close = pkey_remote_close,
.delete = pkey_remote_delete,
.get_key_type = pkey_remote_get_key_type,