79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
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#ifndef _CODECRYPT_H_
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#define _CODECRYPT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* codecrypt matrix/vector/whatever type */
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typedef char* ccr_mtx;
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/* permutation as a list of transpositions */
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typedef int* ccr_perm;
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/* macros for faster allocation/accessing */
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#define ccr_mtx_alloc_size(veclen,nvec) ((1+(((veclen)-1)/8))*(nvec))
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#define ccr_mtx_vec_offset ccr_mtx_alloc_size
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struct ccr_mce_pubkey {
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/* params */
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int n, k, t;
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/* n*k G' pubkey matrix */
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ccr_mtx g;
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};
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struct ccr_mce_privkey {
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/* params */
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int n, k, t;
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/* goppa polynomial of degree t */
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ccr_mtx poly;
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/* inverse of S matrix */
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ccr_mtx sinv;
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/* inverse of P permutation */
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ccr_perm pinv;
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/* parity check matrix */
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ccr_mtx h;
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};
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struct ccr_nd_pubkey {
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/* params */
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int n, k, t;
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/* pubkey matrix */
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ccr_mtx h;
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};
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struct ccr_nd_privkey {
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/* params */
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int n, k, t;
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/* goppa polynomial of degree t */
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ccr_mtx poly;
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/* inverse of S matrix */
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ccr_mtx sinv;
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/* inverse of P permutation */
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ccr_perm pinv;
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};
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int ccr_mce_gen (struct ccr_mce_pubkey*, struct ccr_mce_privkey*);
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int ccr_mce_encrypt (struct ccr_mce_pubkey*, const char*, char*);
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int ccr_mce_decrypt (struct ccr_mce_privkey*, const char*, char*);
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int ccr_nd_gen (struct ccr_nd_pubkey*, struct ccr_nd_privkey*);
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int ccr_nd_encrypt (struct ccr_nd_privkey*, const char*, char*);
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int ccr_nd_decrypt (struct ccr_nd_pubkey*, const char*, char*);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _CODECRYPT_H_ */
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