59d304027c
This allows different backends to store additional state information in the secret key while the rest of the codebase remains agnostic. In particular, this prepares for a common xmss_core.h API for both the standard and the BDS-traversal-based implementations.
60 lignes
1.6 KiB
C
60 lignes
1.6 KiB
C
#ifndef XMSS_PARAMS_H
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#define XMSS_PARAMS_H
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#include <stdint.h>
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/* These are merely internal identifiers for the supported hash functions. */
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#define XMSS_SHA2 0
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#define XMSS_SHAKE 1
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/* This is a result of the OID definitions in the draft; needed for parsing. */
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#define XMSS_OID_LEN 4
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/* This structure will be populated when calling xmss[mt]_parse_oid. */
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typedef struct {
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unsigned int func;
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unsigned int n;
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unsigned int wots_w;
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unsigned int wots_log_w;
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unsigned int wots_len1;
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unsigned int wots_len2;
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unsigned int wots_len;
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unsigned int wots_sig_bytes;
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unsigned int full_height;
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unsigned int tree_height;
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unsigned int d;
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unsigned int index_bytes;
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unsigned int sig_bytes;
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unsigned int pk_bytes;
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unsigned long long sk_bytes;
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unsigned int bds_k;
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} xmss_params;
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/**
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* Accepts strings such as "XMSS-SHA2_10_256"
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* and outputs OIDs such as 0x01000001.
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* Returns 1 when the parameter set is not found, 0 otherwise
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*/
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int xmss_str_to_oid(uint32_t *oid, const char* s);
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/**
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* Accepts takes strings such as "XMSSMT-SHA2_20/2_256"
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* and outputs OIDs such as 0x01000001.
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* Returns 1 when the parameter set is not found, 0 otherwise
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*/
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int xmssmt_str_to_oid(uint32_t *oid, const char* s);
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/**
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* Accepts OIDs such as 0x01000001, and configures params accordingly.
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* Returns 1 when the OID is not found, 0 otherwise.
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*/
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int xmss_parse_oid(xmss_params *params, const uint32_t oid);
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/**
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* Accepts OIDs such as 0x01000001, and configures params accordingly.
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* Returns 1 when the OID is not found, 0 otherwise.
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*/
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int xmssmt_parse_oid(xmss_params *params, const uint32_t oid);
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#endif
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