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Reduce size of working space in ARIA

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This commit is contained in:
Jeffrey Walton 2023-09-30 13:51:53 -04:00
parent 1143c7c2cc
commit 4e09f1e436
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GPG Key ID: B36AB348921B1838
1 changed files with 4 additions and 4 deletions
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aria.cpp
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@ -104,7 +104,7 @@ void ARIA::Base::UncheckedSetKey(const byte *key, unsigned int keylen, const Nam
CRYPTOPP_UNUSED(params);
m_rk.New(4*17); // round keys
m_w.New(4*28); // w0, w1, w2, w3, t and u
m_w.New(4*24); // w0, w1, w2, w3, t and u
int Q, q, R, r;
@ -127,9 +127,9 @@ void ARIA::Base::UncheckedSetKey(const byte *key, unsigned int keylen, const Nam
CRYPTOPP_ASSERT(0);
}
// w0 has room for 32 bytes. w1-w3 each has room for 16 bytes. t and u are 16 byte temp areas.
// The storage requrements for w0-w3, t and u are 112 bytes or 28 words.
word32 *w0 = m_w.data(), *w1 = m_w.data()+8, *w2 = m_w.data()+12, *w3 = m_w.data()+16, *t = m_w.data()+20;
// w0-w3 each has room for 16 bytes. t and u are 16 byte temp areas.
// The storage requrements for w0-w3, t and u are 96 bytes or 24 words.
word32 *w0 = m_w.data(), *w1 = m_w.data()+4, *w2 = m_w.data()+8, *w3 = m_w.data()+12, *t = m_w.data()+16;
GetBlock<word32, BigEndian, false>block(key);
block(w0[0])(w0[1])(w0[2])(w0[3]);