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authorlloyd <[email protected]>2014-01-10 03:41:59 +0000
committerlloyd <[email protected]>2014-01-10 03:41:59 +0000
commit6894dca64c04936d07048c0e8cbf7e25858548c3 (patch)
tree5d572bfde9fe667dab14e3f04b5285a85d8acd95 /src/lib/hash/sha2_32
parent9efa3be92442afb3d0b69890a36c7f122df18eda (diff)
Move lib into src
Diffstat (limited to 'src/lib/hash/sha2_32')
-rw-r--r--src/lib/hash/sha2_32/info.txt5
-rw-r--r--src/lib/hash/sha2_32/sha2_32.cpp227
-rw-r--r--src/lib/hash/sha2_32/sha2_32.h60
3 files changed, 292 insertions, 0 deletions
diff --git a/src/lib/hash/sha2_32/info.txt b/src/lib/hash/sha2_32/info.txt
new file mode 100644
index 000000000..b15db2ede
--- /dev/null
+++ b/src/lib/hash/sha2_32/info.txt
@@ -0,0 +1,5 @@
+define SHA2_32 20131128
+
+<requires>
+mdx_hash
+</requires>
diff --git a/src/lib/hash/sha2_32/sha2_32.cpp b/src/lib/hash/sha2_32/sha2_32.cpp
new file mode 100644
index 000000000..cffc8bd2a
--- /dev/null
+++ b/src/lib/hash/sha2_32/sha2_32.cpp
@@ -0,0 +1,227 @@
+/*
+* SHA-{224,256}
+* (C) 1999-2010 Jack Lloyd
+* 2007 FlexSecure GmbH
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/sha2_32.h>
+#include <botan/loadstor.h>
+#include <botan/rotate.h>
+
+namespace Botan {
+
+namespace {
+
+namespace SHA2_32 {
+
+/*
+* SHA-256 Rho Function
+*/
+inline u32bit rho(u32bit X, u32bit rot1, u32bit rot2, u32bit rot3)
+ {
+ return (rotate_right(X, rot1) ^ rotate_right(X, rot2) ^
+ rotate_right(X, rot3));
+ }
+
+/*
+* SHA-256 Sigma Function
+*/
+inline u32bit sigma(u32bit X, u32bit rot1, u32bit rot2, u32bit shift)
+ {
+ return (rotate_right(X, rot1) ^ rotate_right(X, rot2) ^ (X >> shift));
+ }
+
+/*
+* SHA-256 F1 Function
+*
+* Use a macro as many compilers won't inline a function this big,
+* even though it is much faster if inlined.
+*/
+#define SHA2_32_F(A, B, C, D, E, F, G, H, M1, M2, M3, M4, magic) \
+ do { \
+ H += magic + rho(E, 6, 11, 25) + ((E & F) ^ (~E & G)) + M1; \
+ D += H; \
+ H += rho(A, 2, 13, 22) + ((A & B) | ((A | B) & C)); \
+ M1 += sigma(M2, 17, 19, 10) + M3 + sigma(M4, 7, 18, 3); \
+ } while(0);
+
+/*
+* SHA-224 / SHA-256 compression function
+*/
+void compress(secure_vector<u32bit>& digest,
+ const byte input[], size_t blocks)
+ {
+ u32bit A = digest[0], B = digest[1], C = digest[2],
+ D = digest[3], E = digest[4], F = digest[5],
+ G = digest[6], H = digest[7];
+
+ for(size_t i = 0; i != blocks; ++i)
+ {
+ u32bit W00 = load_be<u32bit>(input, 0);
+ u32bit W01 = load_be<u32bit>(input, 1);
+ u32bit W02 = load_be<u32bit>(input, 2);
+ u32bit W03 = load_be<u32bit>(input, 3);
+ u32bit W04 = load_be<u32bit>(input, 4);
+ u32bit W05 = load_be<u32bit>(input, 5);
+ u32bit W06 = load_be<u32bit>(input, 6);
+ u32bit W07 = load_be<u32bit>(input, 7);
+ u32bit W08 = load_be<u32bit>(input, 8);
+ u32bit W09 = load_be<u32bit>(input, 9);
+ u32bit W10 = load_be<u32bit>(input, 10);
+ u32bit W11 = load_be<u32bit>(input, 11);
+ u32bit W12 = load_be<u32bit>(input, 12);
+ u32bit W13 = load_be<u32bit>(input, 13);
+ u32bit W14 = load_be<u32bit>(input, 14);
+ u32bit W15 = load_be<u32bit>(input, 15);
+
+ SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x428A2F98);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x71374491);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0xB5C0FBCF);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0xE9B5DBA5);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x3956C25B);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x59F111F1);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x923F82A4);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0xAB1C5ED5);
+ SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0xD807AA98);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0x12835B01);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0x243185BE);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0x550C7DC3);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0x72BE5D74);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0x80DEB1FE);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0x9BDC06A7);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0xC19BF174);
+ SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0xE49B69C1);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0xEFBE4786);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x0FC19DC6);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x240CA1CC);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x2DE92C6F);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x4A7484AA);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x5CB0A9DC);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x76F988DA);
+ SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0x983E5152);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0xA831C66D);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0xB00327C8);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0xBF597FC7);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0xC6E00BF3);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xD5A79147);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0x06CA6351);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0x14292967);
+ SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x27B70A85);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x2E1B2138);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x4D2C6DFC);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x53380D13);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x650A7354);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x766A0ABB);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x81C2C92E);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x92722C85);
+ SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0xA2BFE8A1);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0xA81A664B);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0xC24B8B70);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0xC76C51A3);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0xD192E819);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xD6990624);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0xF40E3585);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0x106AA070);
+ SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x19A4C116);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x1E376C08);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x2748774C);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x34B0BCB5);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x391C0CB3);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x4ED8AA4A);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x5B9CCA4F);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x682E6FF3);
+ SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0x748F82EE);
+ SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0x78A5636F);
+ SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0x84C87814);
+ SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0x8CC70208);
+ SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0x90BEFFFA);
+ SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xA4506CEB);
+ SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0xBEF9A3F7);
+ SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0xC67178F2);
+
+ A = (digest[0] += A);
+ B = (digest[1] += B);
+ C = (digest[2] += C);
+ D = (digest[3] += D);
+ E = (digest[4] += E);
+ F = (digest[5] += F);
+ G = (digest[6] += G);
+ H = (digest[7] += H);
+
+ input += 64;
+ }
+ }
+
+}
+
+}
+
+/*
+* SHA-224 compression function
+*/
+void SHA_224::compress_n(const byte input[], size_t blocks)
+ {
+ SHA2_32::compress(digest, input, blocks);
+ }
+
+/*
+* Copy out the digest
+*/
+void SHA_224::copy_out(byte output[])
+ {
+ for(size_t i = 0; i != output_length(); i += 4)
+ store_be(digest[i/4], output + i);
+ }
+
+/*
+* Clear memory of sensitive data
+*/
+void SHA_224::clear()
+ {
+ MDx_HashFunction::clear();
+ digest[0] = 0xC1059ED8;
+ digest[1] = 0x367CD507;
+ digest[2] = 0x3070DD17;
+ digest[3] = 0xF70E5939;
+ digest[4] = 0xFFC00B31;
+ digest[5] = 0x68581511;
+ digest[6] = 0x64F98FA7;
+ digest[7] = 0xBEFA4FA4;
+ }
+
+/*
+* SHA-256 compression function
+*/
+void SHA_256::compress_n(const byte input[], size_t blocks)
+ {
+ SHA2_32::compress(digest, input, blocks);
+ }
+
+/*
+* Copy out the digest
+*/
+void SHA_256::copy_out(byte output[])
+ {
+ for(size_t i = 0; i != output_length(); i += 4)
+ store_be(digest[i/4], output + i);
+ }
+
+/*
+* Clear memory of sensitive data
+*/
+void SHA_256::clear()
+ {
+ MDx_HashFunction::clear();
+ digest[0] = 0x6A09E667;
+ digest[1] = 0xBB67AE85;
+ digest[2] = 0x3C6EF372;
+ digest[3] = 0xA54FF53A;
+ digest[4] = 0x510E527F;
+ digest[5] = 0x9B05688C;
+ digest[6] = 0x1F83D9AB;
+ digest[7] = 0x5BE0CD19;
+ }
+
+}
diff --git a/src/lib/hash/sha2_32/sha2_32.h b/src/lib/hash/sha2_32/sha2_32.h
new file mode 100644
index 000000000..ccb8e07f2
--- /dev/null
+++ b/src/lib/hash/sha2_32/sha2_32.h
@@ -0,0 +1,60 @@
+/*
+* SHA-{224,256}
+* (C) 1999-2011 Jack Lloyd
+* 2007 FlexSecure GmbH
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_SHA_224_256_H__
+#define BOTAN_SHA_224_256_H__
+
+#include <botan/mdx_hash.h>
+
+namespace Botan {
+
+/**
+* SHA-224
+*/
+class BOTAN_DLL SHA_224 : public MDx_HashFunction
+ {
+ public:
+ std::string name() const { return "SHA-224"; }
+ size_t output_length() const { return 28; }
+ HashFunction* clone() const { return new SHA_224; }
+
+ void clear();
+
+ SHA_224() : MDx_HashFunction(64, true, true), digest(8)
+ { clear(); }
+ private:
+ void compress_n(const byte[], size_t blocks);
+ void copy_out(byte[]);
+
+ secure_vector<u32bit> digest;
+ };
+
+/**
+* SHA-256
+*/
+class BOTAN_DLL SHA_256 : public MDx_HashFunction
+ {
+ public:
+ std::string name() const { return "SHA-256"; }
+ size_t output_length() const { return 32; }
+ HashFunction* clone() const { return new SHA_256; }
+
+ void clear();
+
+ SHA_256() : MDx_HashFunction(64, true, true), digest(8)
+ { clear(); }
+ private:
+ void compress_n(const byte[], size_t blocks);
+ void copy_out(byte[]);
+
+ secure_vector<u32bit> digest;
+ };
+
+}
+
+#endif