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Add a crypto_dh_dup, for benchmark support

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This commit is contained in:
Nick Mathewson 2012-11-28 15:38:37 -05:00
parent bd93ff8dd7
commit 3c3084e165
2 changed files with 11 additions and 0 deletions
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10
src/common/crypto.c
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@ -2036,6 +2036,16 @@ crypto_dh_new(int dh_type)
return NULL;
}
/** Return a copy of <b>dh</b>, sharing its internal state. */
crypto_dh_t *
crypto_dh_dup(const crypto_dh_t *dh)
{
crypto_dh_t *dh_new = tor_malloc_zero(sizeof(crypto_dh_t));
dh_new->dh = dh->dh;
DH_up_ref(dh->dh);
return dh_new;
}
/** Return the length of the DH key in <b>dh</b>, in bytes.
*/
int

1
src/common/crypto.h
View File

@ -230,6 +230,7 @@ void crypto_hmac_sha256(char *hmac_out,
#define DH_TYPE_REND 2
#define DH_TYPE_TLS 3
crypto_dh_t *crypto_dh_new(int dh_type);
crypto_dh_t *crypto_dh_dup(const crypto_dh_t *dh);
int crypto_dh_get_bytes(crypto_dh_t *dh);
int crypto_dh_generate_public(crypto_dh_t *dh);
int crypto_dh_get_public(crypto_dh_t *dh, char *pubkey_out,