summaryrefslogtreecommitdiff
path: root/plugins/CryptoPP/crypto/ttmac.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/CryptoPP/crypto/ttmac.cpp')
-rw-r--r--plugins/CryptoPP/crypto/ttmac.cpp338
1 files changed, 338 insertions, 0 deletions
diff --git a/plugins/CryptoPP/crypto/ttmac.cpp b/plugins/CryptoPP/crypto/ttmac.cpp
new file mode 100644
index 0000000000..6b4e8bfe56
--- /dev/null
+++ b/plugins/CryptoPP/crypto/ttmac.cpp
@@ -0,0 +1,338 @@
+// ttmac.cpp - written and placed in the public domain by Kevin Springle
+
+#include "pch.h"
+#include "ttmac.h"
+#include "misc.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+void TTMAC_Base::UncheckedSetKey(const byte *userKey, unsigned int keylength, const NameValuePairs &)
+{
+ AssertValidKeyLength(keylength);
+
+ memcpy(m_key, userKey, KEYLENGTH);
+ CorrectEndianess(m_key, m_key, KEYLENGTH);
+
+ Init();
+}
+
+void TTMAC_Base::Init()
+{
+ m_digest[0] = m_digest[5] = m_key[0];
+ m_digest[1] = m_digest[6] = m_key[1];
+ m_digest[2] = m_digest[7] = m_key[2];
+ m_digest[3] = m_digest[8] = m_key[3];
+ m_digest[4] = m_digest[9] = m_key[4];
+}
+
+void TTMAC_Base::TruncatedFinal(byte *hash, size_t size)
+{
+ PadLastBlock(BlockSize() - 2*sizeof(HashWordType));
+ CorrectEndianess(m_data, m_data, BlockSize() - 2*sizeof(HashWordType));
+
+ m_data[m_data.size()-2] = GetBitCountLo();
+ m_data[m_data.size()-1] = GetBitCountHi();
+
+ Transform(m_digest, m_data, true);
+
+ word32 t2 = m_digest[2];
+ word32 t3 = m_digest[3];
+ if (size != DIGESTSIZE)
+ {
+ switch (size)
+ {
+ case 16:
+ m_digest[3] += m_digest[1] + m_digest[4];
+
+ case 12:
+ m_digest[2] += m_digest[0] + t3;
+
+ case 8:
+ m_digest[0] += m_digest[1] + t3;
+ m_digest[1] += m_digest[4] + t2;
+ break;
+
+ case 4:
+ m_digest[0] +=
+ m_digest[1] +
+ m_digest[2] +
+ m_digest[3] +
+ m_digest[4];
+ break;
+
+ case 0:
+ // Used by HashTransformation::Restart()
+ break;
+
+ default:
+ throw InvalidArgument("TTMAC_Base: can't truncate a Two-Track-MAC 20 byte digest to " + IntToString(size) + " bytes");
+ break;
+ }
+ }
+
+ CorrectEndianess(m_digest, m_digest, size);
+ memcpy(hash, m_digest, size);
+
+ Restart(); // reinit for next use
+}
+
+// RIPEMD-160 definitions used by Two-Track-MAC
+
+#define F(x, y, z) (x ^ y ^ z)
+#define G(x, y, z) (z ^ (x & (y^z)))
+#define H(x, y, z) (z ^ (x | ~y))
+#define I(x, y, z) (y ^ (z & (x^y)))
+#define J(x, y, z) (x ^ (y | ~z))
+
+#define k0 0
+#define k1 0x5a827999UL
+#define k2 0x6ed9eba1UL
+#define k3 0x8f1bbcdcUL
+#define k4 0xa953fd4eUL
+#define k5 0x50a28be6UL
+#define k6 0x5c4dd124UL
+#define k7 0x6d703ef3UL
+#define k8 0x7a6d76e9UL
+#define k9 0
+
+void TTMAC_Base::Transform(word32 *digest, const word32 *X, bool last)
+{
+#define Subround(f, a, b, c, d, e, x, s, k) \
+ a += f(b, c, d) + x + k;\
+ a = rotlFixed((word32)a, s) + e;\
+ c = rotlFixed((word32)c, 10U)
+
+ word32 a1, b1, c1, d1, e1, a2, b2, c2, d2, e2;
+ word32 *trackA, *trackB;
+
+ if (!last)
+ {
+ trackA = digest;
+ trackB = digest+5;
+ }
+ else
+ {
+ trackB = digest;
+ trackA = digest+5;
+ }
+ a1 = trackA[0];
+ b1 = trackA[1];
+ c1 = trackA[2];
+ d1 = trackA[3];
+ e1 = trackA[4];
+ a2 = trackB[0];
+ b2 = trackB[1];
+ c2 = trackB[2];
+ d2 = trackB[3];
+ e2 = trackB[4];
+
+ Subround(F, a1, b1, c1, d1, e1, X[ 0], 11, k0);
+ Subround(F, e1, a1, b1, c1, d1, X[ 1], 14, k0);
+ Subround(F, d1, e1, a1, b1, c1, X[ 2], 15, k0);
+ Subround(F, c1, d1, e1, a1, b1, X[ 3], 12, k0);
+ Subround(F, b1, c1, d1, e1, a1, X[ 4], 5, k0);
+ Subround(F, a1, b1, c1, d1, e1, X[ 5], 8, k0);
+ Subround(F, e1, a1, b1, c1, d1, X[ 6], 7, k0);
+ Subround(F, d1, e1, a1, b1, c1, X[ 7], 9, k0);
+ Subround(F, c1, d1, e1, a1, b1, X[ 8], 11, k0);
+ Subround(F, b1, c1, d1, e1, a1, X[ 9], 13, k0);
+ Subround(F, a1, b1, c1, d1, e1, X[10], 14, k0);
+ Subround(F, e1, a1, b1, c1, d1, X[11], 15, k0);
+ Subround(F, d1, e1, a1, b1, c1, X[12], 6, k0);
+ Subround(F, c1, d1, e1, a1, b1, X[13], 7, k0);
+ Subround(F, b1, c1, d1, e1, a1, X[14], 9, k0);
+ Subround(F, a1, b1, c1, d1, e1, X[15], 8, k0);
+
+ Subround(G, e1, a1, b1, c1, d1, X[ 7], 7, k1);
+ Subround(G, d1, e1, a1, b1, c1, X[ 4], 6, k1);
+ Subround(G, c1, d1, e1, a1, b1, X[13], 8, k1);
+ Subround(G, b1, c1, d1, e1, a1, X[ 1], 13, k1);
+ Subround(G, a1, b1, c1, d1, e1, X[10], 11, k1);
+ Subround(G, e1, a1, b1, c1, d1, X[ 6], 9, k1);
+ Subround(G, d1, e1, a1, b1, c1, X[15], 7, k1);
+ Subround(G, c1, d1, e1, a1, b1, X[ 3], 15, k1);
+ Subround(G, b1, c1, d1, e1, a1, X[12], 7, k1);
+ Subround(G, a1, b1, c1, d1, e1, X[ 0], 12, k1);
+ Subround(G, e1, a1, b1, c1, d1, X[ 9], 15, k1);
+ Subround(G, d1, e1, a1, b1, c1, X[ 5], 9, k1);
+ Subround(G, c1, d1, e1, a1, b1, X[ 2], 11, k1);
+ Subround(G, b1, c1, d1, e1, a1, X[14], 7, k1);
+ Subround(G, a1, b1, c1, d1, e1, X[11], 13, k1);
+ Subround(G, e1, a1, b1, c1, d1, X[ 8], 12, k1);
+
+ Subround(H, d1, e1, a1, b1, c1, X[ 3], 11, k2);
+ Subround(H, c1, d1, e1, a1, b1, X[10], 13, k2);
+ Subround(H, b1, c1, d1, e1, a1, X[14], 6, k2);
+ Subround(H, a1, b1, c1, d1, e1, X[ 4], 7, k2);
+ Subround(H, e1, a1, b1, c1, d1, X[ 9], 14, k2);
+ Subround(H, d1, e1, a1, b1, c1, X[15], 9, k2);
+ Subround(H, c1, d1, e1, a1, b1, X[ 8], 13, k2);
+ Subround(H, b1, c1, d1, e1, a1, X[ 1], 15, k2);
+ Subround(H, a1, b1, c1, d1, e1, X[ 2], 14, k2);
+ Subround(H, e1, a1, b1, c1, d1, X[ 7], 8, k2);
+ Subround(H, d1, e1, a1, b1, c1, X[ 0], 13, k2);
+ Subround(H, c1, d1, e1, a1, b1, X[ 6], 6, k2);
+ Subround(H, b1, c1, d1, e1, a1, X[13], 5, k2);
+ Subround(H, a1, b1, c1, d1, e1, X[11], 12, k2);
+ Subround(H, e1, a1, b1, c1, d1, X[ 5], 7, k2);
+ Subround(H, d1, e1, a1, b1, c1, X[12], 5, k2);
+
+ Subround(I, c1, d1, e1, a1, b1, X[ 1], 11, k3);
+ Subround(I, b1, c1, d1, e1, a1, X[ 9], 12, k3);
+ Subround(I, a1, b1, c1, d1, e1, X[11], 14, k3);
+ Subround(I, e1, a1, b1, c1, d1, X[10], 15, k3);
+ Subround(I, d1, e1, a1, b1, c1, X[ 0], 14, k3);
+ Subround(I, c1, d1, e1, a1, b1, X[ 8], 15, k3);
+ Subround(I, b1, c1, d1, e1, a1, X[12], 9, k3);
+ Subround(I, a1, b1, c1, d1, e1, X[ 4], 8, k3);
+ Subround(I, e1, a1, b1, c1, d1, X[13], 9, k3);
+ Subround(I, d1, e1, a1, b1, c1, X[ 3], 14, k3);
+ Subround(I, c1, d1, e1, a1, b1, X[ 7], 5, k3);
+ Subround(I, b1, c1, d1, e1, a1, X[15], 6, k3);
+ Subround(I, a1, b1, c1, d1, e1, X[14], 8, k3);
+ Subround(I, e1, a1, b1, c1, d1, X[ 5], 6, k3);
+ Subround(I, d1, e1, a1, b1, c1, X[ 6], 5, k3);
+ Subround(I, c1, d1, e1, a1, b1, X[ 2], 12, k3);
+
+ Subround(J, b1, c1, d1, e1, a1, X[ 4], 9, k4);
+ Subround(J, a1, b1, c1, d1, e1, X[ 0], 15, k4);
+ Subround(J, e1, a1, b1, c1, d1, X[ 5], 5, k4);
+ Subround(J, d1, e1, a1, b1, c1, X[ 9], 11, k4);
+ Subround(J, c1, d1, e1, a1, b1, X[ 7], 6, k4);
+ Subround(J, b1, c1, d1, e1, a1, X[12], 8, k4);
+ Subround(J, a1, b1, c1, d1, e1, X[ 2], 13, k4);
+ Subround(J, e1, a1, b1, c1, d1, X[10], 12, k4);
+ Subround(J, d1, e1, a1, b1, c1, X[14], 5, k4);
+ Subround(J, c1, d1, e1, a1, b1, X[ 1], 12, k4);
+ Subround(J, b1, c1, d1, e1, a1, X[ 3], 13, k4);
+ Subround(J, a1, b1, c1, d1, e1, X[ 8], 14, k4);
+ Subround(J, e1, a1, b1, c1, d1, X[11], 11, k4);
+ Subround(J, d1, e1, a1, b1, c1, X[ 6], 8, k4);
+ Subround(J, c1, d1, e1, a1, b1, X[15], 5, k4);
+ Subround(J, b1, c1, d1, e1, a1, X[13], 6, k4);
+
+ Subround(J, a2, b2, c2, d2, e2, X[ 5], 8, k5);
+ Subround(J, e2, a2, b2, c2, d2, X[14], 9, k5);
+ Subround(J, d2, e2, a2, b2, c2, X[ 7], 9, k5);
+ Subround(J, c2, d2, e2, a2, b2, X[ 0], 11, k5);
+ Subround(J, b2, c2, d2, e2, a2, X[ 9], 13, k5);
+ Subround(J, a2, b2, c2, d2, e2, X[ 2], 15, k5);
+ Subround(J, e2, a2, b2, c2, d2, X[11], 15, k5);
+ Subround(J, d2, e2, a2, b2, c2, X[ 4], 5, k5);
+ Subround(J, c2, d2, e2, a2, b2, X[13], 7, k5);
+ Subround(J, b2, c2, d2, e2, a2, X[ 6], 7, k5);
+ Subround(J, a2, b2, c2, d2, e2, X[15], 8, k5);
+ Subround(J, e2, a2, b2, c2, d2, X[ 8], 11, k5);
+ Subround(J, d2, e2, a2, b2, c2, X[ 1], 14, k5);
+ Subround(J, c2, d2, e2, a2, b2, X[10], 14, k5);
+ Subround(J, b2, c2, d2, e2, a2, X[ 3], 12, k5);
+ Subround(J, a2, b2, c2, d2, e2, X[12], 6, k5);
+
+ Subround(I, e2, a2, b2, c2, d2, X[ 6], 9, k6);
+ Subround(I, d2, e2, a2, b2, c2, X[11], 13, k6);
+ Subround(I, c2, d2, e2, a2, b2, X[ 3], 15, k6);
+ Subround(I, b2, c2, d2, e2, a2, X[ 7], 7, k6);
+ Subround(I, a2, b2, c2, d2, e2, X[ 0], 12, k6);
+ Subround(I, e2, a2, b2, c2, d2, X[13], 8, k6);
+ Subround(I, d2, e2, a2, b2, c2, X[ 5], 9, k6);
+ Subround(I, c2, d2, e2, a2, b2, X[10], 11, k6);
+ Subround(I, b2, c2, d2, e2, a2, X[14], 7, k6);
+ Subround(I, a2, b2, c2, d2, e2, X[15], 7, k6);
+ Subround(I, e2, a2, b2, c2, d2, X[ 8], 12, k6);
+ Subround(I, d2, e2, a2, b2, c2, X[12], 7, k6);
+ Subround(I, c2, d2, e2, a2, b2, X[ 4], 6, k6);
+ Subround(I, b2, c2, d2, e2, a2, X[ 9], 15, k6);
+ Subround(I, a2, b2, c2, d2, e2, X[ 1], 13, k6);
+ Subround(I, e2, a2, b2, c2, d2, X[ 2], 11, k6);
+
+ Subround(H, d2, e2, a2, b2, c2, X[15], 9, k7);
+ Subround(H, c2, d2, e2, a2, b2, X[ 5], 7, k7);
+ Subround(H, b2, c2, d2, e2, a2, X[ 1], 15, k7);
+ Subround(H, a2, b2, c2, d2, e2, X[ 3], 11, k7);
+ Subround(H, e2, a2, b2, c2, d2, X[ 7], 8, k7);
+ Subround(H, d2, e2, a2, b2, c2, X[14], 6, k7);
+ Subround(H, c2, d2, e2, a2, b2, X[ 6], 6, k7);
+ Subround(H, b2, c2, d2, e2, a2, X[ 9], 14, k7);
+ Subround(H, a2, b2, c2, d2, e2, X[11], 12, k7);
+ Subround(H, e2, a2, b2, c2, d2, X[ 8], 13, k7);
+ Subround(H, d2, e2, a2, b2, c2, X[12], 5, k7);
+ Subround(H, c2, d2, e2, a2, b2, X[ 2], 14, k7);
+ Subround(H, b2, c2, d2, e2, a2, X[10], 13, k7);
+ Subround(H, a2, b2, c2, d2, e2, X[ 0], 13, k7);
+ Subround(H, e2, a2, b2, c2, d2, X[ 4], 7, k7);
+ Subround(H, d2, e2, a2, b2, c2, X[13], 5, k7);
+
+ Subround(G, c2, d2, e2, a2, b2, X[ 8], 15, k8);
+ Subround(G, b2, c2, d2, e2, a2, X[ 6], 5, k8);
+ Subround(G, a2, b2, c2, d2, e2, X[ 4], 8, k8);
+ Subround(G, e2, a2, b2, c2, d2, X[ 1], 11, k8);
+ Subround(G, d2, e2, a2, b2, c2, X[ 3], 14, k8);
+ Subround(G, c2, d2, e2, a2, b2, X[11], 14, k8);
+ Subround(G, b2, c2, d2, e2, a2, X[15], 6, k8);
+ Subround(G, a2, b2, c2, d2, e2, X[ 0], 14, k8);
+ Subround(G, e2, a2, b2, c2, d2, X[ 5], 6, k8);
+ Subround(G, d2, e2, a2, b2, c2, X[12], 9, k8);
+ Subround(G, c2, d2, e2, a2, b2, X[ 2], 12, k8);
+ Subround(G, b2, c2, d2, e2, a2, X[13], 9, k8);
+ Subround(G, a2, b2, c2, d2, e2, X[ 9], 12, k8);
+ Subround(G, e2, a2, b2, c2, d2, X[ 7], 5, k8);
+ Subround(G, d2, e2, a2, b2, c2, X[10], 15, k8);
+ Subround(G, c2, d2, e2, a2, b2, X[14], 8, k8);
+
+ Subround(F, b2, c2, d2, e2, a2, X[12], 8, k9);
+ Subround(F, a2, b2, c2, d2, e2, X[15], 5, k9);
+ Subround(F, e2, a2, b2, c2, d2, X[10], 12, k9);
+ Subround(F, d2, e2, a2, b2, c2, X[ 4], 9, k9);
+ Subround(F, c2, d2, e2, a2, b2, X[ 1], 12, k9);
+ Subround(F, b2, c2, d2, e2, a2, X[ 5], 5, k9);
+ Subround(F, a2, b2, c2, d2, e2, X[ 8], 14, k9);
+ Subround(F, e2, a2, b2, c2, d2, X[ 7], 6, k9);
+ Subround(F, d2, e2, a2, b2, c2, X[ 6], 8, k9);
+ Subround(F, c2, d2, e2, a2, b2, X[ 2], 13, k9);
+ Subround(F, b2, c2, d2, e2, a2, X[13], 6, k9);
+ Subround(F, a2, b2, c2, d2, e2, X[14], 5, k9);
+ Subround(F, e2, a2, b2, c2, d2, X[ 0], 15, k9);
+ Subround(F, d2, e2, a2, b2, c2, X[ 3], 13, k9);
+ Subround(F, c2, d2, e2, a2, b2, X[ 9], 11, k9);
+ Subround(F, b2, c2, d2, e2, a2, X[11], 11, k9);
+
+ a1 -= trackA[0];
+ b1 -= trackA[1];
+ c1 -= trackA[2];
+ d1 -= trackA[3];
+ e1 -= trackA[4];
+ a2 -= trackB[0];
+ b2 -= trackB[1];
+ c2 -= trackB[2];
+ d2 -= trackB[3];
+ e2 -= trackB[4];
+
+ if (!last)
+ {
+ trackA[0] = (b1 + e1) - d2;
+ trackA[1] = c1 - e2;
+ trackA[2] = d1 - a2;
+ trackA[3] = e1 - b2;
+ trackA[4] = a1 - c2;
+ trackB[0] = d1 - e2;
+ trackB[1] = (e1 + c1) - a2;
+ trackB[2] = a1 - b2;
+ trackB[3] = b1 - c2;
+ trackB[4] = c1 - d2;
+ }
+ else
+ {
+ trackB[0] = a2 - a1;
+ trackB[1] = b2 - b1;
+ trackB[2] = c2 - c1;
+ trackB[3] = d2 - d1;
+ trackB[4] = e2 - e1;
+ trackA[0] = 0;
+ trackA[1] = 0;
+ trackA[2] = 0;
+ trackA[3] = 0;
+ trackA[4] = 0;
+ }
+}
+
+NAMESPACE_END
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 10:33:29 +0000