clang-format all pdfium code.

core/src/fdrm/crypto/fx_crypt.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../../include/fdrm/fx_crypt.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 struct rc4_state {
-    int x, y, m[256];
+  int x, y, m[256];
 };
-void CRYPT_ArcFourSetup(void* context,  const uint8_t* key,  FX_DWORD length )
-{
-    rc4_state *s = (rc4_state*)context;
-    int i, j, k, *m, a;
-    s->x = 0;
-    s->y = 0;
-    m = s->m;
-    for( i = 0; i < 256; i++ ) {
-        m[i] = i;
+void CRYPT_ArcFourSetup(void* context, const uint8_t* key, FX_DWORD length) {
+  rc4_state* s = (rc4_state*)context;
+  int i, j, k, *m, a;
+  s->x = 0;
+  s->y = 0;
+  m = s->m;
+  for (i = 0; i < 256; i++) {
+    m[i] = i;
+  }
+  j = k = 0;
+  for (i = 0; i < 256; i++) {
+    a = m[i];
+    j = (j + a + key[k]) & 0xFF;
+    m[i] = m[j];
+    m[j] = a;
+    if (++k >= (int)length) {
+      k = 0;
     }
-    j = k = 0;
-    for( i = 0; i < 256; i++ ) {
-        a = m[i];
-        j = ( j + a + key[k] ) & 0xFF;
-        m[i] = m[j];
-        m[j] = a;
-        if( ++k >= (int)length ) {
-            k = 0;
-        }
-    }
-}
-void CRYPT_ArcFourCrypt(void* context, unsigned char *data, FX_DWORD length )
-{
-    struct rc4_state* s = (struct rc4_state*)context;
-    int i, x, y, *m, a, b;
-    x = s->x;
-    y = s->y;
-    m = s->m;
-    for( i = 0; i < (int)length; i++ ) {
-        x = ( x + 1 ) & 0xFF;
-        a = m[x];
-        y = ( y + a ) & 0xFF;
-        m[x] = b = m[y];
-        m[y] = a;
-        data[i] ^= m[( a + b ) & 0xFF];
-    }
-    s->x = x;
-    s->y = y;
-}
-void CRYPT_ArcFourCryptBlock(uint8_t* pData, FX_DWORD size, const uint8_t* key, FX_DWORD keylen)
-{
-    rc4_state s;
-    CRYPT_ArcFourSetup(&s, key, keylen);
-    CRYPT_ArcFourCrypt(&s, pData, size);
+  }
+}
+void CRYPT_ArcFourCrypt(void* context, unsigned char* data, FX_DWORD length) {
+  struct rc4_state* s = (struct rc4_state*)context;
+  int i, x, y, *m, a, b;
+  x = s->x;
+  y = s->y;
+  m = s->m;
+  for (i = 0; i < (int)length; i++) {
+    x = (x + 1) & 0xFF;
+    a = m[x];
+    y = (y + a) & 0xFF;
+    m[x] = b = m[y];
+    m[y] = a;
+    data[i] ^= m[(a + b) & 0xFF];
+  }
+  s->x = x;
+  s->y = y;
+}
+void CRYPT_ArcFourCryptBlock(uint8_t* pData,
+                             FX_DWORD size,
+                             const uint8_t* key,
+                             FX_DWORD keylen) {
+  rc4_state s;
+  CRYPT_ArcFourSetup(&s, key, keylen);
+  CRYPT_ArcFourCrypt(&s, pData, size);
 }
 struct md5_context {
-    FX_DWORD total[2];
-    FX_DWORD state[4];
-    uint8_t buffer[64];
+  FX_DWORD total[2];
+  FX_DWORD state[4];
+  uint8_t buffer[64];
 };
-#define GET_FX_DWORD(n,b,i)                                       \
-    {                                                               \
-        (n) = (FX_DWORD) ((uint8_t *) b)[(i)]                           \
-              | (((FX_DWORD) ((uint8_t *) b)[(i)+1]) <<  8)                 \
-              | (((FX_DWORD) ((uint8_t *) b)[(i)+2]) << 16)                 \
-              | (((FX_DWORD) ((uint8_t *) b)[(i)+3]) << 24);                \
-    }
-#define PUT_FX_DWORD(n,b,i)                                       \
-    {                                                               \
-        (((uint8_t *) b)[(i)]  ) = (uint8_t) (((n)      ) & 0xFF);      \
-        (((uint8_t *) b)[(i)+1]) = (uint8_t) (((n) >>  8) & 0xFF);      \
-        (((uint8_t *) b)[(i)+2]) = (uint8_t) (((n) >> 16) & 0xFF);      \
-        (((uint8_t *) b)[(i)+3]) = (uint8_t) (((n) >> 24) & 0xFF);      \
-    }
-void md5_process( struct md5_context *ctx, const uint8_t data[64] )
-{
-    FX_DWORD A, B, C, D, X[16];
-    GET_FX_DWORD( X[0],  data,  0 );
-    GET_FX_DWORD( X[1],  data,  4 );
-    GET_FX_DWORD( X[2],  data,  8 );
-    GET_FX_DWORD( X[3],  data, 12 );
-    GET_FX_DWORD( X[4],  data, 16 );
-    GET_FX_DWORD( X[5],  data, 20 );
-    GET_FX_DWORD( X[6],  data, 24 );
-    GET_FX_DWORD( X[7],  data, 28 );
-    GET_FX_DWORD( X[8],  data, 32 );
-    GET_FX_DWORD( X[9],  data, 36 );
-    GET_FX_DWORD( X[10], data, 40 );
-    GET_FX_DWORD( X[11], data, 44 );
-    GET_FX_DWORD( X[12], data, 48 );
-    GET_FX_DWORD( X[13], data, 52 );
-    GET_FX_DWORD( X[14], data, 56 );
-    GET_FX_DWORD( X[15], data, 60 );
-#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
-#define P(a,b,c,d,k,s,t)                                \
-    {                                                       \
-        a += F(b,c,d) + X[k] + t; a = S(a,s) + b;           \
-    }
-    A = ctx->state[0];
-    B = ctx->state[1];
-    C = ctx->state[2];
-    D = ctx->state[3];
-#define F(x,y,z) (z ^ (x & (y ^ z)))
-    P( A, B, C, D,  0,  7, 0xD76AA478 );
-    P( D, A, B, C,  1, 12, 0xE8C7B756 );
-    P( C, D, A, B,  2, 17, 0x242070DB );
-    P( B, C, D, A,  3, 22, 0xC1BDCEEE );
-    P( A, B, C, D,  4,  7, 0xF57C0FAF );
-    P( D, A, B, C,  5, 12, 0x4787C62A );
-    P( C, D, A, B,  6, 17, 0xA8304613 );
-    P( B, C, D, A,  7, 22, 0xFD469501 );
-    P( A, B, C, D,  8,  7, 0x698098D8 );
-    P( D, A, B, C,  9, 12, 0x8B44F7AF );
-    P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
-    P( B, C, D, A, 11, 22, 0x895CD7BE );
-    P( A, B, C, D, 12,  7, 0x6B901122 );
-    P( D, A, B, C, 13, 12, 0xFD987193 );
-    P( C, D, A, B, 14, 17, 0xA679438E );
-    P( B, C, D, A, 15, 22, 0x49B40821 );
-#undef F
-#define F(x,y,z) (y ^ (z & (x ^ y)))
-    P( A, B, C, D,  1,  5, 0xF61E2562 );
-    P( D, A, B, C,  6,  9, 0xC040B340 );
-    P( C, D, A, B, 11, 14, 0x265E5A51 );
-    P( B, C, D, A,  0, 20, 0xE9B6C7AA );
-    P( A, B, C, D,  5,  5, 0xD62F105D );
-    P( D, A, B, C, 10,  9, 0x02441453 );
-    P( C, D, A, B, 15, 14, 0xD8A1E681 );
-    P( B, C, D, A,  4, 20, 0xE7D3FBC8 );
-    P( A, B, C, D,  9,  5, 0x21E1CDE6 );
-    P( D, A, B, C, 14,  9, 0xC33707D6 );
-    P( C, D, A, B,  3, 14, 0xF4D50D87 );
-    P( B, C, D, A,  8, 20, 0x455A14ED );
-    P( A, B, C, D, 13,  5, 0xA9E3E905 );
-    P( D, A, B, C,  2,  9, 0xFCEFA3F8 );
-    P( C, D, A, B,  7, 14, 0x676F02D9 );
-    P( B, C, D, A, 12, 20, 0x8D2A4C8A );
-#undef F
-#define F(x,y,z) (x ^ y ^ z)
-    P( A, B, C, D,  5,  4, 0xFFFA3942 );
-    P( D, A, B, C,  8, 11, 0x8771F681 );
-    P( C, D, A, B, 11, 16, 0x6D9D6122 );
-    P( B, C, D, A, 14, 23, 0xFDE5380C );
-    P( A, B, C, D,  1,  4, 0xA4BEEA44 );
-    P( D, A, B, C,  4, 11, 0x4BDECFA9 );
-    P( C, D, A, B,  7, 16, 0xF6BB4B60 );
-    P( B, C, D, A, 10, 23, 0xBEBFBC70 );
-    P( A, B, C, D, 13,  4, 0x289B7EC6 );
-    P( D, A, B, C,  0, 11, 0xEAA127FA );
-    P( C, D, A, B,  3, 16, 0xD4EF3085 );
-    P( B, C, D, A,  6, 23, 0x04881D05 );
-    P( A, B, C, D,  9,  4, 0xD9D4D039 );
-    P( D, A, B, C, 12, 11, 0xE6DB99E5 );
-    P( C, D, A, B, 15, 16, 0x1FA27CF8 );
-    P( B, C, D, A,  2, 23, 0xC4AC5665 );
-#undef F
-#define F(x,y,z) (y ^ (x | ~z))
-    P( A, B, C, D,  0,  6, 0xF4292244 );
-    P( D, A, B, C,  7, 10, 0x432AFF97 );
-    P( C, D, A, B, 14, 15, 0xAB9423A7 );
-    P( B, C, D, A,  5, 21, 0xFC93A039 );
-    P( A, B, C, D, 12,  6, 0x655B59C3 );
-    P( D, A, B, C,  3, 10, 0x8F0CCC92 );
-    P( C, D, A, B, 10, 15, 0xFFEFF47D );
-    P( B, C, D, A,  1, 21, 0x85845DD1 );
-    P( A, B, C, D,  8,  6, 0x6FA87E4F );
-    P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
-    P( C, D, A, B,  6, 15, 0xA3014314 );
-    P( B, C, D, A, 13, 21, 0x4E0811A1 );
-    P( A, B, C, D,  4,  6, 0xF7537E82 );
-    P( D, A, B, C, 11, 10, 0xBD3AF235 );
-    P( C, D, A, B,  2, 15, 0x2AD7D2BB );
-    P( B, C, D, A,  9, 21, 0xEB86D391 );
-#undef F
-    ctx->state[0] += A;
-    ctx->state[1] += B;
-    ctx->state[2] += C;
-    ctx->state[3] += D;
-}
-void CRYPT_MD5Start(void* context)
-{
-    struct md5_context *ctx = (struct md5_context*)context;
-    ctx->total[0] = 0;
-    ctx->total[1] = 0;
-    ctx->state[0] = 0x67452301;
-    ctx->state[1] = 0xEFCDAB89;
-    ctx->state[2] = 0x98BADCFE;
-    ctx->state[3] = 0x10325476;
-}
-void CRYPT_MD5Update(void* pctx, const uint8_t* input, FX_DWORD length )
-{
-    struct md5_context *ctx = (struct md5_context *)pctx;
-    FX_DWORD left, fill;
-    if( ! length ) {
-        return;
-    }
-    left = ( ctx->total[0] >> 3 ) & 0x3F;
-    fill = 64 - left;
-    ctx->total[0] += length <<  3;
-    ctx->total[1] += length >> 29;
-    ctx->total[0] &= 0xFFFFFFFF;
-    ctx->total[1] += ctx->total[0] < length << 3;
-    if( left && length >= fill ) {
-        FXSYS_memcpy( (void *) (ctx->buffer + left), (void *) input, fill );
-        md5_process( ctx, ctx->buffer );
-        length -= fill;
-        input  += fill;
-        left = 0;
-    }
-    while( length >= 64 ) {
-        md5_process( ctx, input );
-        length -= 64;
-        input  += 64;
-    }
-    if( length ) {
-        FXSYS_memcpy( (void *) (ctx->buffer + left), (void *) input, length );
-    }
+#define GET_FX_DWORD(n, b, i)                          \
+  {                                                    \
+    (n) = (FX_DWORD)((uint8_t*)b)[(i)] |               \
+          (((FX_DWORD)((uint8_t*)b)[(i) + 1]) << 8) |  \
+          (((FX_DWORD)((uint8_t*)b)[(i) + 2]) << 16) | \
+          (((FX_DWORD)((uint8_t*)b)[(i) + 3]) << 24);  \
+  }
+#define PUT_FX_DWORD(n, b, i)                                 \
+  {                                                           \
+    (((uint8_t*)b)[(i)]) = (uint8_t)(((n)) & 0xFF);           \
+    (((uint8_t*)b)[(i) + 1]) = (uint8_t)(((n) >> 8) & 0xFF);  \
+    (((uint8_t*)b)[(i) + 2]) = (uint8_t)(((n) >> 16) & 0xFF); \
+    (((uint8_t*)b)[(i) + 3]) = (uint8_t)(((n) >> 24) & 0xFF); \
+  }
+void md5_process(struct md5_context* ctx, const uint8_t data[64]) {
+  FX_DWORD A, B, C, D, X[16];
+  GET_FX_DWORD(X[0], data, 0);
+  GET_FX_DWORD(X[1], data, 4);
+  GET_FX_DWORD(X[2], data, 8);
+  GET_FX_DWORD(X[3], data, 12);
+  GET_FX_DWORD(X[4], data, 16);
+  GET_FX_DWORD(X[5], data, 20);
+  GET_FX_DWORD(X[6], data, 24);
+  GET_FX_DWORD(X[7], data, 28);
+  GET_FX_DWORD(X[8], data, 32);
+  GET_FX_DWORD(X[9], data, 36);
+  GET_FX_DWORD(X[10], data, 40);
+  GET_FX_DWORD(X[11], data, 44);
+  GET_FX_DWORD(X[12], data, 48);
+  GET_FX_DWORD(X[13], data, 52);
+  GET_FX_DWORD(X[14], data, 56);
+  GET_FX_DWORD(X[15], data, 60);
+#define S(x, n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
+#define P(a, b, c, d, k, s, t)  \
+  {                             \
+    a += F(b, c, d) + X[k] + t; \
+    a = S(a, s) + b;            \
+  }
+  A = ctx->state[0];
+  B = ctx->state[1];
+  C = ctx->state[2];
+  D = ctx->state[3];
+#define F(x, y, z) (z ^ (x & (y ^ z)))
+  P(A, B, C, D, 0, 7, 0xD76AA478);
+  P(D, A, B, C, 1, 12, 0xE8C7B756);
+  P(C, D, A, B, 2, 17, 0x242070DB);
+  P(B, C, D, A, 3, 22, 0xC1BDCEEE);
+  P(A, B, C, D, 4, 7, 0xF57C0FAF);
+  P(D, A, B, C, 5, 12, 0x4787C62A);
+  P(C, D, A, B, 6, 17, 0xA8304613);
+  P(B, C, D, A, 7, 22, 0xFD469501);
+  P(A, B, C, D, 8, 7, 0x698098D8);
+  P(D, A, B, C, 9, 12, 0x8B44F7AF);
+  P(C, D, A, B, 10, 17, 0xFFFF5BB1);
+  P(B, C, D, A, 11, 22, 0x895CD7BE);
+  P(A, B, C, D, 12, 7, 0x6B901122);
+  P(D, A, B, C, 13, 12, 0xFD987193);
+  P(C, D, A, B, 14, 17, 0xA679438E);
+  P(B, C, D, A, 15, 22, 0x49B40821);
+#undef F
+#define F(x, y, z) (y ^ (z & (x ^ y)))
+  P(A, B, C, D, 1, 5, 0xF61E2562);
+  P(D, A, B, C, 6, 9, 0xC040B340);
+  P(C, D, A, B, 11, 14, 0x265E5A51);
+  P(B, C, D, A, 0, 20, 0xE9B6C7AA);
+  P(A, B, C, D, 5, 5, 0xD62F105D);
+  P(D, A, B, C, 10, 9, 0x02441453);
+  P(C, D, A, B, 15, 14, 0xD8A1E681);
+  P(B, C, D, A, 4, 20, 0xE7D3FBC8);
+  P(A, B, C, D, 9, 5, 0x21E1CDE6);
+  P(D, A, B, C, 14, 9, 0xC33707D6);
+  P(C, D, A, B, 3, 14, 0xF4D50D87);
+  P(B, C, D, A, 8, 20, 0x455A14ED);
+  P(A, B, C, D, 13, 5, 0xA9E3E905);
+  P(D, A, B, C, 2, 9, 0xFCEFA3F8);
+  P(C, D, A, B, 7, 14, 0x676F02D9);
+  P(B, C, D, A, 12, 20, 0x8D2A4C8A);
+#undef F
+#define F(x, y, z) (x ^ y ^ z)
+  P(A, B, C, D, 5, 4, 0xFFFA3942);
+  P(D, A, B, C, 8, 11, 0x8771F681);
+  P(C, D, A, B, 11, 16, 0x6D9D6122);
+  P(B, C, D, A, 14, 23, 0xFDE5380C);
+  P(A, B, C, D, 1, 4, 0xA4BEEA44);
+  P(D, A, B, C, 4, 11, 0x4BDECFA9);
+  P(C, D, A, B, 7, 16, 0xF6BB4B60);
+  P(B, C, D, A, 10, 23, 0xBEBFBC70);
+  P(A, B, C, D, 13, 4, 0x289B7EC6);
+  P(D, A, B, C, 0, 11, 0xEAA127FA);
+  P(C, D, A, B, 3, 16, 0xD4EF3085);
+  P(B, C, D, A, 6, 23, 0x04881D05);
+  P(A, B, C, D, 9, 4, 0xD9D4D039);
+  P(D, A, B, C, 12, 11, 0xE6DB99E5);
+  P(C, D, A, B, 15, 16, 0x1FA27CF8);
+  P(B, C, D, A, 2, 23, 0xC4AC5665);
+#undef F
+#define F(x, y, z) (y ^ (x | ~z))
+  P(A, B, C, D, 0, 6, 0xF4292244);
+  P(D, A, B, C, 7, 10, 0x432AFF97);
+  P(C, D, A, B, 14, 15, 0xAB9423A7);
+  P(B, C, D, A, 5, 21, 0xFC93A039);
+  P(A, B, C, D, 12, 6, 0x655B59C3);
+  P(D, A, B, C, 3, 10, 0x8F0CCC92);
+  P(C, D, A, B, 10, 15, 0xFFEFF47D);
+  P(B, C, D, A, 1, 21, 0x85845DD1);
+  P(A, B, C, D, 8, 6, 0x6FA87E4F);
+  P(D, A, B, C, 15, 10, 0xFE2CE6E0);
+  P(C, D, A, B, 6, 15, 0xA3014314);
+  P(B, C, D, A, 13, 21, 0x4E0811A1);
+  P(A, B, C, D, 4, 6, 0xF7537E82);
+  P(D, A, B, C, 11, 10, 0xBD3AF235);
+  P(C, D, A, B, 2, 15, 0x2AD7D2BB);
+  P(B, C, D, A, 9, 21, 0xEB86D391);
+#undef F
+  ctx->state[0] += A;
+  ctx->state[1] += B;
+  ctx->state[2] += C;
+  ctx->state[3] += D;
+}
+void CRYPT_MD5Start(void* context) {
+  struct md5_context* ctx = (struct md5_context*)context;
+  ctx->total[0] = 0;
+  ctx->total[1] = 0;
+  ctx->state[0] = 0x67452301;
+  ctx->state[1] = 0xEFCDAB89;
+  ctx->state[2] = 0x98BADCFE;
+  ctx->state[3] = 0x10325476;
+}
+void CRYPT_MD5Update(void* pctx, const uint8_t* input, FX_DWORD length) {
+  struct md5_context* ctx = (struct md5_context*)pctx;
+  FX_DWORD left, fill;
+  if (!length) {
+    return;
+  }
+  left = (ctx->total[0] >> 3) & 0x3F;
+  fill = 64 - left;
+  ctx->total[0] += length << 3;
+  ctx->total[1] += length >> 29;
+  ctx->total[0] &= 0xFFFFFFFF;
+  ctx->total[1] += ctx->total[0] < length << 3;
+  if (left && length >= fill) {
+    FXSYS_memcpy((void*)(ctx->buffer + left), (void*)input, fill);
+    md5_process(ctx, ctx->buffer);
+    length -= fill;
+    input += fill;
+    left = 0;
+  }
+  while (length >= 64) {
+    md5_process(ctx, input);
+    length -= 64;
+    input += 64;
+  }
+  if (length) {
+    FXSYS_memcpy((void*)(ctx->buffer + left), (void*)input, length);
+  }
 }
 const uint8_t md5_padding[64] = {
-    0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-void CRYPT_MD5Finish(void* pctx, uint8_t digest[16] )
-{
-    struct md5_context *ctx = (struct md5_context *)pctx;
-    FX_DWORD last, padn;
-    uint8_t msglen[8];
-    PUT_FX_DWORD( ctx->total[0], msglen, 0 );
-    PUT_FX_DWORD( ctx->total[1], msglen, 4 );
-    last = ( ctx->total[0] >> 3 ) & 0x3F;
-    padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
-    CRYPT_MD5Update( ctx, md5_padding, padn );
-    CRYPT_MD5Update( ctx, msglen, 8 );
-    PUT_FX_DWORD( ctx->state[0], digest,  0 );
-    PUT_FX_DWORD( ctx->state[1], digest,  4 );
-    PUT_FX_DWORD( ctx->state[2], digest,  8 );
-    PUT_FX_DWORD( ctx->state[3], digest, 12 );
-}
-void CRYPT_MD5Generate(const uint8_t* input, FX_DWORD length, uint8_t digest[16])
-{
-    md5_context ctx;
-    CRYPT_MD5Start(&ctx);
-    CRYPT_MD5Update(&ctx, input, length);
-    CRYPT_MD5Finish(&ctx, digest);
-}
-static FX_BOOL (*g_PubKeyDecryptor)(const uint8_t* pData, FX_DWORD size, uint8_t* data_buf, FX_DWORD& data_len) = NULL;
-void CRYPT_SetPubKeyDecryptor(FX_BOOL (*func)(const uint8_t* pData, FX_DWORD size, uint8_t* data_buf, FX_DWORD& data_len))
-{
-    g_PubKeyDecryptor = func;
+    0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0,    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0,    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+void CRYPT_MD5Finish(void* pctx, uint8_t digest[16]) {
+  struct md5_context* ctx = (struct md5_context*)pctx;
+  FX_DWORD last, padn;
+  uint8_t msglen[8];
+  PUT_FX_DWORD(ctx->total[0], msglen, 0);
+  PUT_FX_DWORD(ctx->total[1], msglen, 4);
+  last = (ctx->total[0] >> 3) & 0x3F;
+  padn = (last < 56) ? (56 - last) : (120 - last);
+  CRYPT_MD5Update(ctx, md5_padding, padn);
+  CRYPT_MD5Update(ctx, msglen, 8);
+  PUT_FX_DWORD(ctx->state[0], digest, 0);
+  PUT_FX_DWORD(ctx->state[1], digest, 4);
+  PUT_FX_DWORD(ctx->state[2], digest, 8);
+  PUT_FX_DWORD(ctx->state[3], digest, 12);
+}
+void CRYPT_MD5Generate(const uint8_t* input,
+                       FX_DWORD length,
+                       uint8_t digest[16]) {
+  md5_context ctx;
+  CRYPT_MD5Start(&ctx);
+  CRYPT_MD5Update(&ctx, input, length);
+  CRYPT_MD5Finish(&ctx, digest);
+}
+static FX_BOOL (*g_PubKeyDecryptor)(const uint8_t* pData,
+                                    FX_DWORD size,
+                                    uint8_t* data_buf,
+                                    FX_DWORD& data_len) = NULL;
+void CRYPT_SetPubKeyDecryptor(FX_BOOL (*func)(const uint8_t* pData,
+                                              FX_DWORD size,
+                                              uint8_t* data_buf,
+                                              FX_DWORD& data_len)) {
+  g_PubKeyDecryptor = func;
 }
 #ifdef __cplusplus
 };
 #endif