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- /* 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;
- }
- }
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