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Add support for multikey signing #3168

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#3290
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Add support for multikey signing#3168
#3290
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jyao1
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4.0Issues and features slated for the next major revision of libspdm.
@steven-bellock

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@steven-bellock
steven-bellock
opened on Aug 18, 2025

libspdm/include/hal/library/responder/asymsignlib.h

Lines 67 to 75 in 6f83128

extern bool libspdm_responder_data_sign(
#if LIBSPDM_HAL_PASS_SPDM_CONTEXT
void *spdm_context,
#endif
spdm_version_number_t spdm_version,
uint8_t op_code, uint32_t base_asym_algo, uint32_t pqc_asym_algo,
uint32_t base_hash_algo, bool is_data_hash,
const uint8_t *message, size_t message_size,
uint8_t *signature, size_t *sig_size);

At a minimum the KeyPairID needs to be passed to the signing entity.

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