private void method_1(Stream A_0, Interface61 A_1, string A_2)
{
SHA1 sha = new SHA1Managed();
using (Stream1 stream = A_1.imethod_2(BookmarkStart.b("欭帯儱䘳伵䠷丹唻儽⸿ୁ⩃⁅❇", 8)))
{
Class62 class2 = new Class62();
class2.method_1(0x40004);
class2.method_3(0x40);
Class187 class3 = class2.method_4().method_0();
this.method_3(class3);
class3.method_15(this.method_10(class3.method_0()));
Class190 class4 = class2.method_4().method_4().method_0();
this.method_4(class4);
class4.method_17(this.method_10(class4.method_2()));
byte[] buffer = this.method_10(class4.method_2());
byte[] buffer2 = new byte[] { 0xfe, 0xa7, 210, 0x76, 0x3b, 0x4b, 0x9e, 0x79 };
byte[] buffer3 = this.class299_0.method_9(A_2, class4.method_16(), buffer2, class4.method_6() >> 3, class4.method_0());
class4.method_19(this.method_11(buffer, class4.method_4(), buffer3, class4.method_16()));
byte[] buffer4 = new byte[] { 0xd7, 170, 15, 0x6d, 0x30, 0x61, 0x34, 0x4e };
buffer3 = this.class299_0.method_9(A_2, class4.method_16(), buffer4, class4.method_6() >> 3, class4.method_0());
class4.method_21(this.method_11(sha.ComputeHash(buffer), class4.method_4(), buffer3, class4.method_16()));
byte[] buffer5 = this.method_10(class3.method_4() / 8);
byte[] buffer6 = new byte[] { 20, 110, 11, 0xe7, 0xab, 0xac, 0xd0, 0xd6 };
buffer3 = this.class299_0.method_9(A_2, class4.method_16(), buffer6, class4.method_6() >> 3, class4.method_0());
class4.method_23(this.method_11(buffer5, class4.method_4(), buffer3, class4.method_16()));
Class188 class5 = class2.method_4().method_2();
byte[] buffer7 = new byte[] { 0x5f, 0xb2, 0xad, 1, 12, 0xb9, 0xe1, 0xf6 };
byte[] buffer8 = sha.ComputeHash(this.class299_0.method_12(class3.method_14(), buffer7));
buffer8 = this.class299_0.method_13(buffer8, class3.method_2(), 0);
byte[] buffer9 = this.method_10(class3.method_6());
class5.method_1(this.method_11(buffer9, class3.method_2(), buffer5, buffer8));
byte[] buffer10 = this.method_2(A_0, A_1, class3, buffer5);
HMACSHA1 hmacsha = new HMACSHA1 {
Key = this.class299_0.method_13(buffer9, class3.method_6(), 0)
};
byte[] buffer11 = new byte[] { 160, 0x67, 0x7f, 2, 0xb2, 0x2c, 0x84, 0x33 };
byte[] buffer12 = sha.ComputeHash(this.class299_0.method_12(class3.method_14(), buffer11));
buffer12 = this.class299_0.method_13(buffer12, class3.method_2(), 0);
class5.method_3(this.method_11(hmacsha.ComputeHash(buffer10), class3.method_2(), buffer5, buffer12));
class2.method_5(stream);
}
}
public int method_3(Class187 class187_0, int int_2)
{
int_2 = Math.Min(Math.Min(int_2, 32768 - this.int_1), class187_0.method_3());
int num = 32768 - this.int_0;
int num2;
if (int_2 > num)
{
num2 = class187_0.method_6(this.byte_0, this.int_0, num);
if (num2 == num)
{
num2 += class187_0.method_6(this.byte_0, 0, int_2 - num);
}
}
else
{
num2 = class187_0.method_6(this.byte_0, this.int_0, int_2);
}
this.int_0 = (this.int_0 + num2 & 32767);
this.int_1 += num2;
return(num2);
}
public int method_3(Class187 class1870, int int2)
{
int2 = Math.Min(Math.Min(int2, 32768 - _int1), class1870.method_3());
var num = 32768 - _int0;
int num2;
if (int2 > num)
{
num2 = class1870.method_6(_byte0, _int0, num);
if (num2 == num)
{
num2 += class1870.method_6(_byte0, 0, int2 - num);
}
}
else
{
num2 = class1870.method_6(_byte0, _int0, int2);
}
_int0 = (_int0 + num2 & 32767);
_int1 += num2;
return(num2);
}
private bool method_4(byte[] A_0)
{
Class187 class2 = this.class62_0.method_4().method_0();
Class188 class3 = this.class62_0.method_4().method_2();
bool flag = this.method_0();
HashAlgorithm algorithm = null;
if (flag)
{
algorithm = new SHA512Managed();
}
else
{
algorithm = new SHA1Managed();
}
byte[] buffer = new byte[] { 0x5f, 0xb2, 0xad, 1, 12, 0xb9, 0xe1, 0xf6 };
byte[] buffer2 = algorithm.ComputeHash(this.class299_0.method_12(class2.method_14(), buffer));
buffer2 = this.class299_0.method_13(buffer2, class2.method_2(), 0);
byte[] buffer3 = this.method_5(class3.method_0(), class2.method_2(), this.byte_0, buffer2, class2.method_6());
HMAC hmac = null;
if (flag)
{
hmac = new HMACSHA512();
}
else
{
hmac = new HMACSHA1();
}
hmac.Key = this.class299_0.method_13(buffer3, class2.method_6(), 0);
byte[] buffer4 = hmac.ComputeHash(A_0);
byte[] buffer5 = new byte[] { 160, 0x67, 0x7f, 2, 0xb2, 0x2c, 0x84, 0x33 };
byte[] buffer6 = algorithm.ComputeHash(this.class299_0.method_12(class2.method_14(), buffer5));
buffer6 = this.class299_0.method_13(buffer6, class2.method_2(), 0);
byte[] buffer7 = this.method_5(class3.method_2(), class2.method_2(), this.byte_0, buffer6, class2.method_6());
return(this.class299_0.method_15(buffer4, buffer7));
}