47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
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#pragma once
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/**
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* @brief Solana secp256k1 system call
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*/
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#include <sol/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Length of a secp256k1 recover input hash */
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#define SECP256K1_RECOVER_HASH_LENGTH 32
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/** Length of a secp256k1 input signature */
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#define SECP256K1_RECOVER_SIGNATURE_LENGTH 64
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/** Length of a secp256k1 recover result */
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#define SECP256K1_RECOVER_RESULT_LENGTH 64
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/** The hash provided to a sol_secp256k1_recover is invalid */
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#define SECP256K1_RECOVER_ERROR_INVALID_HASH 1
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/** The recovery_id provided to a sol_secp256k1_recover is invalid */
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#define SECP256K1_RECOVER_ERROR_INVALID_RECOVERY_ID 2
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/** The signature provided to a sol_secp256k1_recover is invalid */
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#define SECP256K1_RECOVER_ERROR_INVALID_SIGNATURE 3
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/**
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* Recover public key from a signed message.
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*
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* @param hash Hashed message
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* @param recovery_id Tag used for public key recovery from signatures. Can be 0 or 1
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* @param signature An ECDSA signature
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* @param result 64 byte array to hold the result. A recovered public key
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* @return 0 if executed successfully
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*/
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uint64_t sol_secp256k1_recover(
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const uint8_t *hash,
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uint64_t recovery_id,
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const uint8_t *signature,
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uint8_t *result
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);
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#ifdef __cplusplus
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}
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#endif
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/**@}*/
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