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-rwxr-xr-xcode/ecp/crypto/arc4random/chacha_private.h223
1 files changed, 0 insertions, 223 deletions
diff --git a/code/ecp/crypto/arc4random/chacha_private.h b/code/ecp/crypto/arc4random/chacha_private.h
deleted file mode 100755
index 05ce200..0000000
--- a/code/ecp/crypto/arc4random/chacha_private.h
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * chacha-merged.c version 20080118
- * D. J. Bernstein
- * Public domain.
- */
-
-/* $OpenBSD$ */
-
-#include <stdint.h>
-
-
-typedef unsigned char u8;
-typedef uint32_t u32;
-
-
-#define U8C(v) (v##U)
-#define U32C(v) (v##U)
-
-#define U8V(v) ((u8)(v) & U8C(0xFF))
-#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF))
-
-#define ROTL32(v, n) \
- (U32V((v) << (n)) | ((v) >> (32 - (n))))
-
-#define U8TO32_LITTLE(p) \
- (((u32)((p)[0]) ) | \
- ((u32)((p)[1]) << 8) | \
- ((u32)((p)[2]) << 16) | \
- ((u32)((p)[3]) << 24))
-
-#define U32TO8_LITTLE(p, v) \
- do { \
- (p)[0] = U8V((v) ); \
- (p)[1] = U8V((v) >> 8); \
- (p)[2] = U8V((v) >> 16); \
- (p)[3] = U8V((v) >> 24); \
- } while (0)
-
-#define ROTATE(v,c) (ROTL32(v,c))
-#define XOR(v,w) ((v) ^ (w))
-#define PLUS(v,w) (U32V((v) + (w)))
-#define PLUSONE(v) (PLUS((v),1))
-
-#define QUARTERROUND(a,b,c,d) \
- a = PLUS(a,b); d = ROTATE(XOR(d,a),16); \
- c = PLUS(c,d); b = ROTATE(XOR(b,c),12); \
- a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); \
- c = PLUS(c,d); b = ROTATE(XOR(b,c), 7);
-
-static const char sigma[16] = "expand 32-byte k";
-static const char tau[16] = "expand 16-byte k";
-
-static void
-chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits,u32 ivbits)
-{
- const char *constants;
-
- (void)ivbits;
-
- x->input[4] = U8TO32_LITTLE(k + 0);
- x->input[5] = U8TO32_LITTLE(k + 4);
- x->input[6] = U8TO32_LITTLE(k + 8);
- x->input[7] = U8TO32_LITTLE(k + 12);
- if (kbits == 256) { /* recommended */
- k += 16;
- constants = sigma;
- } else { /* kbits == 128 */
- constants = tau;
- }
- x->input[8] = U8TO32_LITTLE(k + 0);
- x->input[9] = U8TO32_LITTLE(k + 4);
- x->input[10] = U8TO32_LITTLE(k + 8);
- x->input[11] = U8TO32_LITTLE(k + 12);
- x->input[0] = U8TO32_LITTLE(constants + 0);
- x->input[1] = U8TO32_LITTLE(constants + 4);
- x->input[2] = U8TO32_LITTLE(constants + 8);
- x->input[3] = U8TO32_LITTLE(constants + 12);
-}
-
-static void
-chacha_ivsetup(chacha_ctx *x,const u8 *iv)
-{
- x->input[12] = 0;
- x->input[13] = 0;
- x->input[14] = U8TO32_LITTLE(iv + 0);
- x->input[15] = U8TO32_LITTLE(iv + 4);
-}
-
-static void
-chacha_encrypt_bytes(chacha_ctx *x,const u8 *m,u8 *c,u32 bytes)
-{
- u32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15;
- u32 j0, j1, j2, j3, j4, j5, j6, j7, j8, j9, j10, j11, j12, j13, j14, j15;
- u8 *ctarget = NULL;
- u8 tmp[64];
- u_int i;
-
- if (!bytes) return;
-
- j0 = x->input[0];
- j1 = x->input[1];
- j2 = x->input[2];
- j3 = x->input[3];
- j4 = x->input[4];
- j5 = x->input[5];
- j6 = x->input[6];
- j7 = x->input[7];
- j8 = x->input[8];
- j9 = x->input[9];
- j10 = x->input[10];
- j11 = x->input[11];
- j12 = x->input[12];
- j13 = x->input[13];
- j14 = x->input[14];
- j15 = x->input[15];
-
- for (;;) {
- if (bytes < 64) {
- for (i = 0;i < bytes;++i) tmp[i] = m[i];
- m = tmp;
- ctarget = c;
- c = tmp;
- }
- x0 = j0;
- x1 = j1;
- x2 = j2;
- x3 = j3;
- x4 = j4;
- x5 = j5;
- x6 = j6;
- x7 = j7;
- x8 = j8;
- x9 = j9;
- x10 = j10;
- x11 = j11;
- x12 = j12;
- x13 = j13;
- x14 = j14;
- x15 = j15;
- for (i = 20;i > 0;i -= 2) {
- QUARTERROUND( x0, x4, x8,x12)
- QUARTERROUND( x1, x5, x9,x13)
- QUARTERROUND( x2, x6,x10,x14)
- QUARTERROUND( x3, x7,x11,x15)
- QUARTERROUND( x0, x5,x10,x15)
- QUARTERROUND( x1, x6,x11,x12)
- QUARTERROUND( x2, x7, x8,x13)
- QUARTERROUND( x3, x4, x9,x14)
- }
- x0 = PLUS(x0,j0);
- x1 = PLUS(x1,j1);
- x2 = PLUS(x2,j2);
- x3 = PLUS(x3,j3);
- x4 = PLUS(x4,j4);
- x5 = PLUS(x5,j5);
- x6 = PLUS(x6,j6);
- x7 = PLUS(x7,j7);
- x8 = PLUS(x8,j8);
- x9 = PLUS(x9,j9);
- x10 = PLUS(x10,j10);
- x11 = PLUS(x11,j11);
- x12 = PLUS(x12,j12);
- x13 = PLUS(x13,j13);
- x14 = PLUS(x14,j14);
- x15 = PLUS(x15,j15);
-
-#ifndef KEYSTREAM_ONLY
- x0 = XOR(x0,U8TO32_LITTLE(m + 0));
- x1 = XOR(x1,U8TO32_LITTLE(m + 4));
- x2 = XOR(x2,U8TO32_LITTLE(m + 8));
- x3 = XOR(x3,U8TO32_LITTLE(m + 12));
- x4 = XOR(x4,U8TO32_LITTLE(m + 16));
- x5 = XOR(x5,U8TO32_LITTLE(m + 20));
- x6 = XOR(x6,U8TO32_LITTLE(m + 24));
- x7 = XOR(x7,U8TO32_LITTLE(m + 28));
- x8 = XOR(x8,U8TO32_LITTLE(m + 32));
- x9 = XOR(x9,U8TO32_LITTLE(m + 36));
- x10 = XOR(x10,U8TO32_LITTLE(m + 40));
- x11 = XOR(x11,U8TO32_LITTLE(m + 44));
- x12 = XOR(x12,U8TO32_LITTLE(m + 48));
- x13 = XOR(x13,U8TO32_LITTLE(m + 52));
- x14 = XOR(x14,U8TO32_LITTLE(m + 56));
- x15 = XOR(x15,U8TO32_LITTLE(m + 60));
-#endif
-
- j12 = PLUSONE(j12);
- if (!j12) {
- j13 = PLUSONE(j13);
- /* stopping at 2^70 bytes per nonce is user's responsibility */
- }
-
- U32TO8_LITTLE(c + 0,x0);
- U32TO8_LITTLE(c + 4,x1);
- U32TO8_LITTLE(c + 8,x2);
- U32TO8_LITTLE(c + 12,x3);
- U32TO8_LITTLE(c + 16,x4);
- U32TO8_LITTLE(c + 20,x5);
- U32TO8_LITTLE(c + 24,x6);
- U32TO8_LITTLE(c + 28,x7);
- U32TO8_LITTLE(c + 32,x8);
- U32TO8_LITTLE(c + 36,x9);
- U32TO8_LITTLE(c + 40,x10);
- U32TO8_LITTLE(c + 44,x11);
- U32TO8_LITTLE(c + 48,x12);
- U32TO8_LITTLE(c + 52,x13);
- U32TO8_LITTLE(c + 56,x14);
- U32TO8_LITTLE(c + 60,x15);
-
- if (bytes <= 64) {
- if (bytes < 64) {
- for (i = 0;i < bytes;++i) ctarget[i] = c[i];
- }
- x->input[12] = j12;
- x->input[13] = j13;
- return;
- }
- bytes -= 64;
- c += 64;
-#ifndef KEYSTREAM_ONLY
- m += 64;
-#endif
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 09:21:08 +0000