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This provides APIs to access the keys. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
32 lines
575 B
C
32 lines
575 B
C
#include <lightningd/hsm/client.h>
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#include <lightningd/hsm/gen_hsm_client_wire.h>
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#include <wire/wire_sync.h>
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static int hsm_fd = -1;
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void hsm_setup(int fd)
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{
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hsm_fd = fd;
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}
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bool hsm_do_ecdh(struct sha256 *ss, const struct pubkey *point)
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{
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u8 *req = towire_hsm_ecdh_req(NULL, point), *resp;
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size_t len;
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if (!wire_sync_write(hsm_fd, req))
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goto fail;
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resp = wire_sync_read(req, hsm_fd);
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if (!resp)
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goto fail;
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len = tal_count(resp);
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if (!fromwire_hsm_ecdh_resp(resp, &len, ss))
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goto fail;
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tal_free(req);
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return true;
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fail:
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tal_free(req);
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return false;
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}
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