62 rader
2.1 KiB
C
62 rader
2.1 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 using an XMSS secret key.
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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,
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unsigned char *sm, unsigned long long *smlen,
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const unsigned char *m, unsigned long long mlen);
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/**
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* Verifies a given message signature pair using a given public key.
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*
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* Note: m and mlen are pure outputs which carry the message in case
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* verification succeeds. The (input) message is assumed to be contained in sm
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* which has the form [signature || message].
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*/
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int xmss_sign_open(unsigned char *m, unsigned long long *mlen,
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const unsigned char *sm, unsigned long long smlen,
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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 using an XMSSMT secret key.
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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,
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unsigned char *sm, unsigned long long *smlen,
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const unsigned char *m, unsigned long long mlen);
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/**
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* Verifies a given message signature pair using a given public key.
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*
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* Note: m and mlen are pure outputs which carry the message in case
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* verification succeeds. The (input) message is assumed to be contained in sm
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* which has the form [signature || message].
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*/
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int xmssmt_sign_open(unsigned char *m, unsigned long long *mlen,
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const unsigned char *sm, unsigned long long smlen,
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const unsigned char *pk);
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#endif
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