本文整理汇总了C++中SHA::CalculateDigest方法的典型用法代码示例。如果您正苦于以下问题：C++ SHA::CalculateDigest方法的具体用法？C++ SHA::CalculateDigest怎么用？C++ SHA::CalculateDigest使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SHA的用法示例。
在下文中一共展示了SHA::CalculateDigest方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: GeneratePrimes
bool DSA::GeneratePrimes(const byte *seedIn, unsigned int g, int &counter,
Integer &p, unsigned int L, Integer &q, bool useInputCounterValue)
{
assert(g%8 == 0);
SHA sha;
SecByteBlock seed(seedIn, g/8);
SecByteBlock U(SHA::DIGESTSIZE);
SecByteBlock temp(SHA::DIGESTSIZE);
SecByteBlock W(((L-1)/160+1) * SHA::DIGESTSIZE);
const int n = (L-1) / 160;
const int b = (L-1) % 160;
Integer X;
sha.CalculateDigest(U, seed, g/8);
for (int i=g/8-1, carry=true; i>=0 && carry; i--)
carry=!++seed[i];
sha.CalculateDigest(temp, seed, g/8);
xorbuf(U, temp, SHA::DIGESTSIZE);
U[0] |= 0x80;
U[SHA::DIGESTSIZE-1] |= 1;
q.Decode(U, SHA::DIGESTSIZE);
if (!IsPrime(q))
return false;
int counterEnd = useInputCounterValue ? counter+1 : 4096;
for (int c = 0; c < counterEnd; c++)
{
for (int k=0; k<=n; k++)
{
for (int i=g/8-1, carry=true; i>=0 && carry; i--)
carry=!++seed[i];
if (!useInputCounterValue || c == counter)
sha.CalculateDigest(W+(n-k)*SHA::DIGESTSIZE, seed, g/8);
}
if (!useInputCounterValue || c == counter)
{
W[SHA::DIGESTSIZE - 1 - b/8] |= 0x80;
X.Decode(W + SHA::DIGESTSIZE - 1 - b/8, L/8);
p = X-((X % (2*q))-1);
if (p.GetBit(L-1) && IsPrime(p))
{
counter = c;
return true;
}
}
}
return false;
}