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Fix compilation with --disable-curve25519 option
The fix is to move the two functions to format/parse base64 curve25519 public keys into a new "crypto_format.c" file. I could have put them in crypto.c, but that's a big file worth splitting anyway. Fixes bug 8153; bugfix on 0.2.4.8-alpha where I did the fix for 7869.
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changes/bug8153
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3
changes/bug8153
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@ -0,0 +1,3 @@
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o Minor bugfixes:
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- Compile correctly with the --disable-curve25519 option. Fix for
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bug 8153; bugfix on 0.2.4.8-alpha.
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@ -182,34 +182,3 @@ curve25519_handshake(uint8_t *output,
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curve25519_impl(output, skey->secret_key, pkey->public_key);
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}
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int
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curve25519_public_to_base64(char *output,
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const curve25519_public_key_t *pkey)
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{
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char buf[128];
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base64_encode(buf, sizeof(buf),
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(const char*)pkey->public_key, CURVE25519_PUBKEY_LEN);
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buf[CURVE25519_BASE64_PADDED_LEN] = '\0';
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memcpy(output, buf, CURVE25519_BASE64_PADDED_LEN+1);
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return 0;
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}
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int
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curve25519_public_from_base64(curve25519_public_key_t *pkey,
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const char *input)
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{
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size_t len = strlen(input);
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if (len == CURVE25519_BASE64_PADDED_LEN - 1) {
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/* not padded */
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return digest256_from_base64((char*)pkey->public_key, input);
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} else if (len == CURVE25519_BASE64_PADDED_LEN) {
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char buf[128];
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if (base64_decode(buf, sizeof(buf), input, len) != CURVE25519_PUBKEY_LEN)
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return -1;
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memcpy(pkey->public_key, buf, CURVE25519_PUBKEY_LEN);
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return 0;
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} else {
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return -1;
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}
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}
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@ -51,6 +51,12 @@ int curve25519_keypair_read_from_file(curve25519_keypair_t *keypair_out,
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char **tag_out,
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const char *fname);
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#ifdef CRYPTO_CURVE25519_PRIVATE
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int curve25519_impl(uint8_t *output, const uint8_t *secret,
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const uint8_t *basepoint);
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#endif
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#endif
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#define CURVE25519_BASE64_PADDED_LEN 44
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int curve25519_public_from_base64(curve25519_public_key_t *pkey,
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@ -58,11 +64,5 @@ int curve25519_public_from_base64(curve25519_public_key_t *pkey,
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int curve25519_public_to_base64(char *output,
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const curve25519_public_key_t *pkey);
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#ifdef CRYPTO_CURVE25519_PRIVATE
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int curve25519_impl(uint8_t *output, const uint8_t *secret,
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const uint8_t *basepoint);
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#endif
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#endif
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#endif
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46
src/common/crypto_format.c
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46
src/common/crypto_format.c
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/* Copyright (c) 2012-2013, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/* Formatting and parsing code for crypto-related data structures. */
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#define CRYPTO_CURVE25519_PRIVATE
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#include "orconfig.h"
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#include "crypto.h"
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#include "crypto_curve25519.h"
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#include "util.h"
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#include "torlog.h"
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int
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curve25519_public_to_base64(char *output,
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const curve25519_public_key_t *pkey)
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{
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char buf[128];
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base64_encode(buf, sizeof(buf),
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(const char*)pkey->public_key, CURVE25519_PUBKEY_LEN);
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buf[CURVE25519_BASE64_PADDED_LEN] = '\0';
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memcpy(output, buf, CURVE25519_BASE64_PADDED_LEN+1);
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return 0;
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}
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int
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curve25519_public_from_base64(curve25519_public_key_t *pkey,
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const char *input)
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{
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size_t len = strlen(input);
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if (len == CURVE25519_BASE64_PADDED_LEN - 1) {
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/* not padded */
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return digest256_from_base64((char*)pkey->public_key, input);
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} else if (len == CURVE25519_BASE64_PADDED_LEN) {
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char buf[128];
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if (base64_decode(buf, sizeof(buf), input, len) != CURVE25519_PUBKEY_LEN)
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return -1;
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memcpy(pkey->public_key, buf, CURVE25519_PUBKEY_LEN);
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return 0;
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} else {
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return -1;
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}
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}
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@ -52,6 +52,7 @@ src_common_libor_a_SOURCES = \
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src_common_libor_crypto_a_SOURCES = \
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src/common/aes.c \
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src/common/crypto.c \
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src/common/crypto_format.c \
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src/common/torgzip.c \
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src/common/tortls.c \
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$(libcrypto_extra_source)
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