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Make sure that GetRandomBytes never fails

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We're using GetRandomBytes in several contexts where it's either
unwieldy to return an error, or an error would mean a fatal exception
anyhow.

@gmaxwell checked OpenSSL a while ago and discovered that it never
actually fails, but it can't hurt to be a bit paranoid here.
This commit is contained in:
Wladimir J. van der Laan
2014-11-07 13:42:52 +01:00
parent 9ea87f9e18
commit 65e3a1e762
3 changed files with 5 additions and 8 deletions
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6
src/wallet.cpp
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@@ -422,15 +422,13 @@ bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
RandAddSeedPerfmon();
vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
if (!GetRandBytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE))
return false;
GetRandBytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
CMasterKey kMasterKey;
RandAddSeedPerfmon();
kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
if (!GetRandBytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE))
return false;
GetRandBytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
CCrypter crypter;
int64_t nStartTime = GetTimeMillis();