45 rivejä
1.8 KiB
C
45 rivejä
1.8 KiB
C
#ifndef XMSS_H
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#define XMSS_H
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#include <stdint.h>
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/**
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* Generates a XMSS key pair for a given parameter set.
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* Format sk: [oid || (32bit) idx || SK_SEED || SK_PRF || PUB_SEED || root]
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* Format pk: [oid || root || PUB_SEED]
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*/
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int xmss_keypair(unsigned char *pk, unsigned char *sk, const uint32_t oid);
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/**
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* Signs a message.
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* Returns
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* 1. an array containing the signature followed by the message AND
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* 2. an updated secret key!
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*/
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int xmss_sign(unsigned char *sk, unsigned char *sig_msg, unsigned long long *sig_msg_len, const unsigned char *msg, unsigned long long msglen);
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/**
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* Verifies a given message signature pair under a given public key.
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*
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* Note: msg and msglen are pure outputs which carry the message in case verification succeeds. The (input) message is assumed to be within sig_msg which has the form (sig||msg).
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*/
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int xmss_sign_open(unsigned char *msg, unsigned long long *msglen, const unsigned char *sig_msg, unsigned long long sig_msg_len, const unsigned char *pk);
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/*
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* Generates a XMSSMT key pair for a given parameter set.
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* Format sk: [oid || (ceil(h/8) bit) idx || SK_SEED || SK_PRF || PUB_SEED || root]
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* Format pk: [oid || root || PUB_SEED]
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*/
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int xmssmt_keypair(unsigned char *pk, unsigned char *sk, const uint32_t oid);
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/**
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* Signs a message.
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* Returns
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* 1. an array containing the signature followed by the message AND
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* 2. an updated secret key!
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*/
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int xmssmt_sign(unsigned char *sk, unsigned char *sig_msg, unsigned long long *sig_msg_len, const unsigned char *msg, unsigned long long msglen);
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/**
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* Verifies a given message signature pair under a given public key.
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*/
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int xmssmt_sign_open(unsigned char *msg, unsigned long long *msglen, const unsigned char *sig_msg, unsigned long long sig_msg_len, const unsigned char *pk);
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#endif
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