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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2022-03-26 18:46:01 +0100 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2022-03-26 21:14:57 +0100 |
| commit | 05fd14006d0ee5991f207d2f98a1a9ab0b4060fb (patch) | |
| tree | a64bce23d59db0ffc2128e38303f79e2e3f76aa9 /src/Crypto/chacha-xmm.c | |
| parent | 533269ca9a13736eb96196b41b38e7c9b04577ae (diff) | |
| download | VeraCrypt-05fd14006d0ee5991f207d2f98a1a9ab0b4060fb.tar.gz VeraCrypt-05fd14006d0ee5991f207d2f98a1a9ab0b4060fb.zip | |
Remove dead code from chacha_ECRYPT_encrypt_bytes (Coverity)
Diffstat (limited to 'src/Crypto/chacha-xmm.c')
| -rw-r--r-- | src/Crypto/chacha-xmm.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/src/Crypto/chacha-xmm.c b/src/Crypto/chacha-xmm.c index 198d0b5b..478de594 100644 --- a/src/Crypto/chacha-xmm.c +++ b/src/Crypto/chacha-xmm.c @@ -139,22 +139,15 @@ void chacha_ECRYPT_encrypt_bytes(size_t bytes, uint32* x, const uint8* m, uint8* #endif if (!bytes) return; - for (;;) { - salsa20_wordtobyte(output,x, r); - x[12] = PLUSONE(x[12]); - if (!x[12]) { - x[13] = PLUSONE(x[13]); - /* stopping at 2^70 bytes per nonce is user's responsibility */ - } - if (bytes <= 64) { - for (i = 0;i < bytes;++i) out[i] = m[i] ^ output[i]; - return; - } - for (i = 0;i < 64;++i) out[i] = m[i] ^ output[i]; - bytes -= 64; - out += 64; - m += 64; + // bytes is now guaranteed to be between 1 and 63 + salsa20_wordtobyte(output,x, r); + x[12] = PLUSONE(x[12]); + if (!x[12]) { + x[13] = PLUSONE(x[13]); + /* stopping at 2^70 bytes per nonce is user's responsibility */ } + + for (i = 0;i < bytes;++i) out[i] = m[i] ^ output[i]; } #endif |