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44 lines
1.9 KiB
C
44 lines
1.9 KiB
C
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#ifndef COSMOPOLITAN_THIRD_PARTY_MBEDTLS_X25519_H_
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#define COSMOPOLITAN_THIRD_PARTY_MBEDTLS_X25519_H_
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#include "third_party/mbedtls/config.h"
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#include "third_party/mbedtls/ecp.h"
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COSMOPOLITAN_C_START_
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#define MBEDTLS_ECP_TLS_CURVE25519 0x1d
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#define MBEDTLS_X25519_KEY_SIZE_BYTES 32
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typedef enum {
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MBEDTLS_EVEREST_ECDH_OURS,
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MBEDTLS_EVEREST_ECDH_THEIRS,
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} mbedtls_everest_ecdh_side;
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typedef struct {
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unsigned char our_secret[MBEDTLS_X25519_KEY_SIZE_BYTES];
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unsigned char peer_point[MBEDTLS_X25519_KEY_SIZE_BYTES];
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} mbedtls_ecdh_context_everest;
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int mbedtls_everest_setup(mbedtls_ecdh_context_everest *, int);
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void mbedtls_everest_free(mbedtls_ecdh_context_everest *);
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int mbedtls_everest_make_params(mbedtls_ecdh_context_everest *, size_t *,
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unsigned char *, size_t,
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int (*)(void *, unsigned char *, size_t),
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void *);
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int mbedtls_everest_read_params(mbedtls_ecdh_context_everest *,
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const unsigned char **, const unsigned char *);
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int mbedtls_everest_get_params(mbedtls_ecdh_context_everest *,
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const mbedtls_ecp_keypair *,
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mbedtls_everest_ecdh_side);
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int mbedtls_everest_make_public(mbedtls_ecdh_context_everest *, size_t *,
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unsigned char *, size_t,
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int (*)(void *, unsigned char *, size_t),
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void *);
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int mbedtls_everest_read_public(mbedtls_ecdh_context_everest *,
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const unsigned char *, size_t);
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int mbedtls_everest_calc_secret(mbedtls_ecdh_context_everest *, size_t *,
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unsigned char *, size_t,
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int (*)(void *, unsigned char *, size_t),
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void *);
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_THIRD_PARTY_MBEDTLS_X25519_H_ */
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