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mnemonics: add some logs to help debug failures

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moneromooo-monero 2018-04-24 17:06:25 +01:00
parent 8fdf645397
commit efcecb42f3
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GPG Key ID: 686F07454D6CEFC3
1 changed files with 26 additions and 2 deletions
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28
src/mnemonics/electrum-words.cpp
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@ -67,6 +67,9 @@
#include "language_base.h"
#include "singleton.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "mnemonic"
namespace
{
uint32_t create_checksum_index(const std::vector<std::string> &word_list,
@ -152,6 +155,7 @@ namespace
if (full_match)
{
*language = *it1;
MINFO("Full match for language " << (*language)->get_english_language_name());
return true;
}
// Some didn't match. Clear the index array.
@ -164,9 +168,11 @@ namespace
if (fallback)
{
*language = fallback;
MINFO("Fallback match for language " << (*language)->get_english_language_name());
return true;
}
MINFO("No match found");
return false;
}
@ -217,7 +223,9 @@ namespace
checksum;
std::string trimmed_last_word = last_word.length() > unique_prefix_length ? Language::utf8prefix(last_word, unique_prefix_length) :
last_word;
return trimmed_checksum == trimmed_last_word;
bool ret = trimmed_checksum == trimmed_last_word;
MINFO("Checksum is %s" << (ret ? "valid" : "invalid"));
return ret;
}
}
@ -253,7 +261,10 @@ namespace crypto
boost::split(seed, words, boost::is_any_of(" "), boost::token_compress_on);
if (len % 4)
{
MERROR("Invalid seed: not a multiple of 4");
return false;
}
bool has_checksum = true;
if (len)
@ -263,6 +274,7 @@ namespace crypto
if (seed.size() != expected/2 && seed.size() != expected &&
seed.size() != expected + 1)
{
MERROR("Invalid seed: unexpected number of words");
return false;
}
@ -274,6 +286,7 @@ namespace crypto
Language::Base *language;
if (!find_seed_language(seed, has_checksum, matched_indices, &language))
{
MERROR("Invalid seed: language not found");
return false;
}
language_name = language->get_language_name();
@ -284,6 +297,7 @@ namespace crypto
if (!checksum_test(seed, language->get_unique_prefix_length()))
{
// Checksum fail
MERROR("Invalid seed: invalid checksum");
return false;
}
seed.pop_back();
@ -300,7 +314,11 @@ namespace crypto
val = w1 + word_list_length * (((word_list_length - w1) + w2) % word_list_length) +
word_list_length * word_list_length * (((word_list_length - w2) + w3) % word_list_length);
if (!(val % word_list_length == w1)) return false;
if (!(val % word_list_length == w1))
{
MERROR("Invalid seed: mumble mumble");
return false;
}
dst.append((const char*)&val, 4); // copy 4 bytes to position
}
@ -332,9 +350,15 @@ namespace crypto
{
std::string s;
if (!words_to_bytes(words, s, sizeof(dst), true, language_name))
{
MERROR("Invalid seed: failed to convert words to bytes");
return false;
}
if (s.size() != sizeof(dst))
{
MERROR("Invalid seed: wrong output size");
return false;
}
dst = *(const crypto::secret_key*)s.data();
return true;
}