109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
#ifndef crypto_secretstream_xchacha20poly1305_H
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#define crypto_secretstream_xchacha20poly1305_H
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#include <stddef.h>
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#include "crypto_aead_xchacha20poly1305.h"
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#include "crypto_stream_chacha20.h"
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#include "export.h"
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#ifdef __cplusplus
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# ifdef __GNUC__
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# pragma GCC diagnostic ignored "-Wlong-long"
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# endif
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extern "C" {
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#endif
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#define crypto_secretstream_xchacha20poly1305_ABYTES \
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(1U + crypto_aead_xchacha20poly1305_ietf_ABYTES)
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SODIUM_EXPORT
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size_t crypto_secretstream_xchacha20poly1305_abytes(void);
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#define crypto_secretstream_xchacha20poly1305_HEADERBYTES \
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crypto_aead_xchacha20poly1305_ietf_NPUBBYTES
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SODIUM_EXPORT
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size_t crypto_secretstream_xchacha20poly1305_headerbytes(void);
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#define crypto_secretstream_xchacha20poly1305_KEYBYTES \
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crypto_aead_xchacha20poly1305_ietf_KEYBYTES
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SODIUM_EXPORT
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size_t crypto_secretstream_xchacha20poly1305_keybytes(void);
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#define crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX \
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SODIUM_MIN(SODIUM_SIZE_MAX - crypto_secretstream_xchacha20poly1305_ABYTES, \
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(64ULL * ((1ULL << 32) - 2ULL)))
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SODIUM_EXPORT
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size_t crypto_secretstream_xchacha20poly1305_messagebytes_max(void);
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#define crypto_secretstream_xchacha20poly1305_TAG_MESSAGE 0x00
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SODIUM_EXPORT
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unsigned char crypto_secretstream_xchacha20poly1305_tag_message(void);
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#define crypto_secretstream_xchacha20poly1305_TAG_PUSH 0x01
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SODIUM_EXPORT
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unsigned char crypto_secretstream_xchacha20poly1305_tag_push(void);
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#define crypto_secretstream_xchacha20poly1305_TAG_REKEY 0x02
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SODIUM_EXPORT
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unsigned char crypto_secretstream_xchacha20poly1305_tag_rekey(void);
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#define crypto_secretstream_xchacha20poly1305_TAG_FINAL \
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(crypto_secretstream_xchacha20poly1305_TAG_PUSH | \
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crypto_secretstream_xchacha20poly1305_TAG_REKEY)
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SODIUM_EXPORT
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unsigned char crypto_secretstream_xchacha20poly1305_tag_final(void);
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typedef struct crypto_secretstream_xchacha20poly1305_state {
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unsigned char k[crypto_stream_chacha20_ietf_KEYBYTES];
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unsigned char nonce[crypto_stream_chacha20_ietf_NONCEBYTES];
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unsigned char _pad[8];
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} crypto_secretstream_xchacha20poly1305_state;
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SODIUM_EXPORT
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size_t crypto_secretstream_xchacha20poly1305_statebytes(void);
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SODIUM_EXPORT
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void crypto_secretstream_xchacha20poly1305_keygen
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(unsigned char k[crypto_secretstream_xchacha20poly1305_KEYBYTES])
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__attribute__ ((nonnull));
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SODIUM_EXPORT
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int crypto_secretstream_xchacha20poly1305_init_push
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(crypto_secretstream_xchacha20poly1305_state *state,
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unsigned char header[crypto_secretstream_xchacha20poly1305_HEADERBYTES],
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const unsigned char k[crypto_secretstream_xchacha20poly1305_KEYBYTES])
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__attribute__ ((nonnull));
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SODIUM_EXPORT
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int crypto_secretstream_xchacha20poly1305_push
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(crypto_secretstream_xchacha20poly1305_state *state,
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unsigned char *c, unsigned long long *clen_p,
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const unsigned char *m, unsigned long long mlen,
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const unsigned char *ad, unsigned long long adlen, unsigned char tag)
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__attribute__ ((nonnull(1)));
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SODIUM_EXPORT
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int crypto_secretstream_xchacha20poly1305_init_pull
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(crypto_secretstream_xchacha20poly1305_state *state,
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const unsigned char header[crypto_secretstream_xchacha20poly1305_HEADERBYTES],
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const unsigned char k[crypto_secretstream_xchacha20poly1305_KEYBYTES])
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__attribute__ ((nonnull));
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SODIUM_EXPORT
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int crypto_secretstream_xchacha20poly1305_pull
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(crypto_secretstream_xchacha20poly1305_state *state,
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unsigned char *m, unsigned long long *mlen_p, unsigned char *tag_p,
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const unsigned char *c, unsigned long long clen,
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const unsigned char *ad, unsigned long long adlen)
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__attribute__ ((nonnull(1)));
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SODIUM_EXPORT
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void crypto_secretstream_xchacha20poly1305_rekey
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(crypto_secretstream_xchacha20poly1305_state *state);
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#ifdef __cplusplus
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}
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#endif
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#endif
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