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- #ifndef MODES_H
- #define MODES_H
- #include <stddef.h>
- #include <stdint.h>
- #include "prp.h"
- typedef struct
- {
- const cf_prp *prp;
- void *prpctx;
- uint8_t block[CF_MAXBLOCK];
- } cf_cbc;
- void cf_cbc_init(cf_cbc *ctx, const cf_prp *prp, void *prpctx, const uint8_t iv[CF_MAXBLOCK]);
- void cf_cbc_encrypt(cf_cbc *ctx, const uint8_t *input, uint8_t *output, size_t blocks);
- void cf_cbc_decrypt(cf_cbc *ctx, const uint8_t *input, uint8_t *output, size_t blocks);
- typedef struct
- {
- const cf_prp *prp;
- void *prpctx;
- uint8_t nonce[CF_MAXBLOCK];
- uint8_t keymat[CF_MAXBLOCK];
- size_t nkeymat;
- size_t counter_offset;
- size_t counter_width;
- } cf_ctr;
- void cf_ctr_init(cf_ctr *ctx, const cf_prp *prp, void *prpctx, const uint8_t nonce[CF_MAXBLOCK]);
- void cf_ctr_custom_counter(cf_ctr *ctx, size_t offset, size_t width);
- void cf_ctr_cipher(cf_ctr *ctx, const uint8_t *input, uint8_t *output, size_t bytes);
- void cf_ctr_discard_block(cf_ctr *ctx);
- typedef struct
- {
- const cf_prp *prp;
- void *prpctx;
- cf_cbc cbc;
- uint8_t buffer[CF_MAXBLOCK];
- size_t used;
- } cf_cbcmac_stream;
- void cf_cbcmac_stream_init(cf_cbcmac_stream *ctx, const cf_prp *prp, void *prpctx);
- void cf_cbcmac_stream_reset(cf_cbcmac_stream *ctx);
- void cf_cbcmac_stream_update(cf_cbcmac_stream *ctx, const uint8_t *data, size_t ndata);
- void cf_cbcmac_stream_finish_block_zero(cf_cbcmac_stream *ctx);
- void cf_cbcmac_stream_nopad_final(cf_cbcmac_stream *ctx, uint8_t out[CF_MAXBLOCK]);
- void cf_cbcmac_stream_pad_final(cf_cbcmac_stream *ctx, uint8_t out[CF_MAXBLOCK]);
- typedef struct
- {
- const cf_prp *prp;
- void *prpctx;
- uint8_t B[CF_MAXBLOCK];
- uint8_t P[CF_MAXBLOCK];
- } cf_cmac;
- void cf_cmac_init(cf_cmac *ctx, const cf_prp *prp, void *prpctx);
- void cf_cmac_sign(cf_cmac *ctx, const uint8_t *data, size_t bytes,
- uint8_t out[CF_MAXBLOCK]);
- typedef struct
- {
- cf_cmac cmac;
- cf_cbc cbc;
- uint8_t buffer[CF_MAXBLOCK];
- size_t used;
- size_t processed;
- int finalised;
- } cf_cmac_stream;
- void cf_cmac_stream_init(cf_cmac_stream *ctx, const cf_prp *prp, void *prpctx);
- void cf_cmac_stream_reset(cf_cmac_stream *ctx);
- void cf_cmac_stream_update(cf_cmac_stream *ctx, const uint8_t *data, size_t ndata,
- int isfinal);
- void cf_cmac_stream_final(cf_cmac_stream *ctx, uint8_t out[CF_MAXBLOCK]);
- void cf_eax_encrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *plain, size_t nplain,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- uint8_t *cipher,
- uint8_t *tag, size_t ntag);
- int cf_eax_decrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *cipher, size_t ncipher,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- const uint8_t *tag, size_t ntag,
- uint8_t *plain);
- void cf_gcm_encrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *plain, size_t nplain,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- uint8_t *cipher,
- uint8_t *tag, size_t ntag);
- int cf_gcm_decrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *cipher, size_t ncipher,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- const uint8_t *tag, size_t ntag,
- uint8_t *plain);
- void cf_ccm_encrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *plain, size_t nplain, size_t L,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- uint8_t *cipher,
- uint8_t *tag, size_t ntag);
- int cf_ccm_decrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *cipher, size_t ncipher, size_t L,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- const uint8_t *tag, size_t ntag,
- uint8_t *plain);
- void cf_ocb_encrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *plain, size_t nplain,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- uint8_t *cipher,
- uint8_t *tag, size_t ntag);
- int cf_ocb_decrypt(const cf_prp *prp, void *prpctx,
- const uint8_t *cipher, size_t ncipher,
- const uint8_t *header, size_t nheader,
- const uint8_t *nonce, size_t nnonce,
- const uint8_t *tag, size_t ntag,
- uint8_t *plain);
- #endif
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