46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/* Copyright (c) 2012-2013, The Tor Project, Inc. */
|
|
/* See LICENSE for licensing information */
|
|
|
|
/* Formatting and parsing code for crypto-related data structures. */
|
|
|
|
#include "orconfig.h"
|
|
#ifdef HAVE_SYS_STAT_H
|
|
#include <sys/stat.h>
|
|
#endif
|
|
#include "crypto.h"
|
|
#include "crypto_curve25519.h"
|
|
#include "util.h"
|
|
#include "torlog.h"
|
|
|
|
int
|
|
curve25519_public_to_base64(char *output,
|
|
const curve25519_public_key_t *pkey)
|
|
{
|
|
char buf[128];
|
|
base64_encode(buf, sizeof(buf),
|
|
(const char*)pkey->public_key, CURVE25519_PUBKEY_LEN);
|
|
buf[CURVE25519_BASE64_PADDED_LEN] = '\0';
|
|
memcpy(output, buf, CURVE25519_BASE64_PADDED_LEN+1);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
curve25519_public_from_base64(curve25519_public_key_t *pkey,
|
|
const char *input)
|
|
{
|
|
size_t len = strlen(input);
|
|
if (len == CURVE25519_BASE64_PADDED_LEN - 1) {
|
|
/* not padded */
|
|
return digest256_from_base64((char*)pkey->public_key, input);
|
|
} else if (len == CURVE25519_BASE64_PADDED_LEN) {
|
|
char buf[128];
|
|
if (base64_decode(buf, sizeof(buf), input, len) != CURVE25519_PUBKEY_LEN)
|
|
return -1;
|
|
memcpy(pkey->public_key, buf, CURVE25519_PUBKEY_LEN);
|
|
return 0;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|