Extracted third-party SHA1 to contrib/

3 files changed, 1 insertions, 679 deletions

diff --git a/StarsEx/CMakeLists.txt b/StarsEx/CMakeLists.txt
index 1c443b1..0f56b97 100644
--- a/StarsEx/CMakeLists.txt
+++ b/StarsEx/CMakeLists.txt
@@ -210,7 +210,6 @@ add_library(
 	ScrollWindow.cpp
 	SeekerAI.cpp
 	Sensor.cpp
-	Sha1.cpp
 	Shadow.cpp
 	Shield.cpp
 	ShieldRep.cpp
@@ -285,6 +284,7 @@ target_link_libraries(
 	PUBLIC Ogg::ogg
 	PUBLIC Png::png
 	PUBLIC Opcode
+	PRIVATE Sha1
 	)
 target_compile_definitions(
 	StarsEx
diff --git a/StarsEx/Sha1.cpp b/StarsEx/Sha1.cpp
deleted file mode 100644
index 7e3de70..0000000
--- a/StarsEx/Sha1.cpp
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
-*    Sha1.cpp
-*
-*    Copyright (C) 1998
-*    Paul E. Jones <paulej@acm.org>
-*    All Rights Reserved.
-*
-*****************************************************************************
-*    $Id: sha1.cpp,v 1.6 2001/03/20 06:54:54 paulej Exp $
-*****************************************************************************
-*
-*    Description:
-*         This class implements the Secure Hashing Standard as defined
-*         in FIPS PUB 180-1 published April 17, 1995.
-*
-*         The Secure Hashing Standard, which uses the Secure Hashing
-*         Algorithm (SHA), produces a 160-bit message digest for a
-*         given data stream.  In theory, it is highly improbable that
-*         two messages will produce the same message digest.  Therefore,
-*         this algorithm can serve as a means of providing a "fingerprint"
-*         for a message.
-*
-*    Portability Issues:
-*         SHA-1 is defined in terms of 32-bit "words".  This code was
-*         written with the expectation that the processor has at least
-*         a 32-bit machine word size.  If the machine word size is larger,
-*         the code should still function properly.  One caveat to that
-*        is that the input functions taking characters and character arrays
-*        assume that only 8 bits of information are stored in each character.
-*
-*    Caveats:
-*         SHA-1 is designed to work with messages less than 2^64 bits long.
-*         Although SHA-1 allows a message digest to be generated for
-*         messages of any number of bits less than 2^64, this implementation
-*         only works with messages with a length that is a multiple of 8
-*         bits.
-*
-*/
-
-
-#include "Sha1.h"
-
-/*
-*    SHA1
-*
-*    Description:
-*        This is the constructor for the sha1 class.
-*
-*    Parameters:
-*        None.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-SHA1::SHA1()
-{
-    Reset();
-}
-
-/*
-*    ~SHA1
-*
-*    Description:
-*        This is the destructor for the sha1 class
-*
-*    Parameters:
-*        None.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-SHA1::~SHA1()
-{
-    // The destructor does nothing
-}
-
-/*
-*    Reset
-*
-*    Description:
-*        This function will initialize the sha1 class member variables
-*        in preparation for computing a new message digest.
-*
-*    Parameters:
-*        None.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-void SHA1::Reset()
-{
-    Length_Low            = 0;
-    Length_High            = 0;
-    Message_Block_Index    = 0;
-
-    H[0]        = 0x67452301;
-    H[1]        = 0xEFCDAB89;
-    H[2]        = 0x98BADCFE;
-    H[3]        = 0x10325476;
-    H[4]        = 0xC3D2E1F0;
-
-    Computed    = false;
-    Corrupted    = false;
-}
-
-/*
-*    Result
-*
-*    Description:
-*        This function will return the 160-bit message digest into the
-*        array provided.
-*
-*    Parameters:
-*        message_digest_array: [out]
-*            This is an array of five unsigned integers which will be filled
-*            with the message digest that has been computed.
-*
-*    Returns:
-*        True if successful, false if it failed.
-*
-*    Comments:
-*
-*/
-bool SHA1::Result(unsigned *message_digest_array)
-{
-    int i;                                    // Counter
-
-    if (Corrupted)
-    {
-        return false;
-    }
-
-    if (!Computed)
-    {
-        PadMessage();
-        Computed = true;
-    }
-
-    for(i = 0; i < 5; i++)
-    {
-        message_digest_array[i] = H[i];
-    }
-
-    return true;
-}
-
-/*
-*    Input
-*
-*    Description:
-*        This function accepts an array of octets as the next portion of
-*        the message.
-*
-*    Parameters:
-*        message_array: [in]
-*            An array of characters representing the next portion of the
-*            message.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-void SHA1::Input(    const unsigned char    *message_array,
-unsigned             length)
-{
-    if (!length)
-    {
-        return;
-    }
-
-    if (Computed || Corrupted)
-    {
-        Corrupted = true;
-        return;
-    }
-
-    while(length-- && !Corrupted)
-    {
-        Message_Block[Message_Block_Index++] = (*message_array & 0xFF);
-
-        Length_Low += 8;
-        Length_Low &= 0xFFFFFFFF;                // Force it to 32 bits
-        if (Length_Low == 0)
-        {
-            Length_High++;
-            Length_High &= 0xFFFFFFFF;            // Force it to 32 bits
-            if (Length_High == 0)
-            {
-                Corrupted = true;                // Message is too long
-            }
-        }
-
-        if (Message_Block_Index == 64)
-        {
-            ProcessMessageBlock();
-        }
-
-        message_array++;
-    }
-}
-
-/*
-*    Input
-*
-*    Description:
-*        This function accepts an array of octets as the next portion of
-*        the message.
-*
-*    Parameters:
-*        message_array: [in]
-*            An array of characters representing the next portion of the
-*            message.
-*        length: [in]
-*            The length of the message_array
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-void SHA1::Input(    const char    *message_array,
-unsigned     length)
-{
-    Input((unsigned char *) message_array, length);
-}
-
-/*
-*    Input
-*
-*    Description:
-*        This function accepts a single octets as the next message element.
-*
-*    Parameters:
-*        message_element: [in]
-*            The next octet in the message.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-void SHA1::Input(unsigned char message_element)
-{
-    Input(&message_element, 1);
-}
-
-/*
-*    Input
-*
-*    Description:
-*        This function accepts a single octet as the next message element.
-*
-*    Parameters:
-*        message_element: [in]
-*            The next octet in the message.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-void SHA1::Input(char message_element)
-{
-    Input((unsigned char *) &message_element, 1);
-}
-
-/*
-*    operator<<
-*
-*    Description:
-*        This operator makes it convenient to provide character strings to
-*        the SHA1 object for processing.
-*
-*    Parameters:
-*        message_array: [in]
-*            The character array to take as input.
-*
-*    Returns:
-*        A reference to the SHA1 object.
-*
-*    Comments:
-*        Each character is assumed to hold 8 bits of information.
-*
-*/
-SHA1& SHA1::operator<<(const char *message_array)
-{
-    const char *p = message_array;
-
-    while(*p)
-    {
-        Input(*p);
-        p++;
-    }
-
-    return *this;
-}
-
-/*
-*    operator<<
-*
-*    Description:
-*        This operator makes it convenient to provide character strings to
-*        the SHA1 object for processing.
-*
-*    Parameters:
-*        message_array: [in]
-*            The character array to take as input.
-*
-*    Returns:
-*        A reference to the SHA1 object.
-*
-*    Comments:
-*        Each character is assumed to hold 8 bits of information.
-*
-*/
-SHA1& SHA1::operator<<(const unsigned char *message_array)
-{
-    const unsigned char *p = message_array;
-
-    while(*p)
-    {
-        Input(*p);
-        p++;
-    }
-
-    return *this;
-}
-
-/*
-*    operator<<
-*
-*    Description:
-*        This function provides the next octet in the message.
-*
-*    Parameters:
-*        message_element: [in]
-*            The next octet in the message
-*
-*    Returns:
-*        A reference to the SHA1 object.
-*
-*    Comments:
-*        The character is assumed to hold 8 bits of information.
-*
-*/
-SHA1& SHA1::operator<<(const char message_element)
-{
-    Input((unsigned char *) &message_element, 1);
-
-    return *this;
-}
-
-/*
-*    operator<<
-*
-*    Description:
-*        This function provides the next octet in the message.
-*
-*    Parameters:
-*        message_element: [in]
-*            The next octet in the message
-*
-*    Returns:
-*        A reference to the SHA1 object.
-*
-*    Comments:
-*        The character is assumed to hold 8 bits of information.
-*
-*/
-SHA1& SHA1::operator<<(const unsigned char message_element)
-{
-    Input(&message_element, 1);
-
-    return *this;
-}
-
-/*
-*    ProcessMessageBlock
-*
-*    Description:
-*        This function will process the next 512 bits of the message
-*        stored in the Message_Block array.
-*
-*    Parameters:
-*        None.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*        Many of the variable names in this function, especially the single
-*         character names, were used because those were the names used
-*          in the publication.
-*
-*/
-void SHA1::ProcessMessageBlock()
-{
-    const unsigned K[] =     {                 // Constants defined for SHA-1
-        0x5A827999,
-        0x6ED9EBA1,
-        0x8F1BBCDC,
-        0xCA62C1D6
-    };
-    int         t;                            // Loop counter
-    unsigned     temp;                        // Temporary word value
-    unsigned    W[80];                        // Word sequence
-    unsigned    A, B, C, D, E;                // Word buffers
-
-    /*
-    *    Initialize the first 16 words in the array W
-    */
-    for(t = 0; t < 16; t++)
-    {
-        W[t] = Message_Block[t * 4] << 24;
-        W[t] |= Message_Block[t * 4 + 1] << 16;
-        W[t] |= Message_Block[t * 4 + 2] << 8;
-        W[t] |= Message_Block[t * 4 + 3];
-    }
-
-    for(t = 16; t < 80; t++)
-    {
-        W[t] = CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
-    }
-
-    A = H[0];
-    B = H[1];
-    C = H[2];
-    D = H[3];
-    E = H[4];
-
-    for(t = 0; t < 20; t++)
-    {
-        temp = CircularShift(5,A) + ((B & C) | ((~B) & D)) + E + W[t] + K[0];
-        temp &= 0xFFFFFFFF;
-        E = D;
-        D = C;
-        C = CircularShift(30,B);
-        B = A;
-        A = temp;
-    }
-
-    for(t = 20; t < 40; t++)
-    {
-        temp = CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1];
-        temp &= 0xFFFFFFFF;
-        E = D;
-        D = C;
-        C = CircularShift(30,B);
-        B = A;
-        A = temp;
-    }
-
-    for(t = 40; t < 60; t++)
-    {
-        temp = CircularShift(5,A) +
-        ((B & C) | (B & D) | (C & D)) + E + W[t] + K[2];
-        temp &= 0xFFFFFFFF;
-        E = D;
-        D = C;
-        C = CircularShift(30,B);
-        B = A;
-        A = temp;
-    }
-
-    for(t = 60; t < 80; t++)
-    {
-        temp = CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3];
-        temp &= 0xFFFFFFFF;
-        E = D;
-        D = C;
-        C = CircularShift(30,B);
-        B = A;
-        A = temp;
-    }
-
-    H[0] = (H[0] + A) & 0xFFFFFFFF;
-    H[1] = (H[1] + B) & 0xFFFFFFFF;
-    H[2] = (H[2] + C) & 0xFFFFFFFF;
-    H[3] = (H[3] + D) & 0xFFFFFFFF;
-    H[4] = (H[4] + E) & 0xFFFFFFFF;
-
-    Message_Block_Index = 0;
-}
-
-/*
-*    PadMessage
-*
-*    Description:
-*        According to the standard, the message must be padded to an even
-*        512 bits.  The first padding bit must be a '1'.  The last 64 bits
-*        represent the length of the original message.  All bits in between
-*        should be 0.  This function will pad the message according to those
-*        rules by filling the message_block array accordingly.  It will also
-*        call ProcessMessageBlock() appropriately.  When it returns, it
-*        can be assumed that the message digest has been computed.
-*
-*    Parameters:
-*        None.
-*
-*    Returns:
-*        Nothing.
-*
-*    Comments:
-*
-*/
-void SHA1::PadMessage()
-{
-    /*
-    *    Check to see if the current message block is too small to hold
-    *    the initial padding bits and length.  If so, we will pad the
-    *    block, process it, and then continue padding into a second block.
-    */
-    if (Message_Block_Index > 55)
-    {
-        Message_Block[Message_Block_Index++] = 0x80;
-        while(Message_Block_Index < 64)
-        {
-            Message_Block[Message_Block_Index++] = 0;
-        }
-
-        ProcessMessageBlock();
-
-        while(Message_Block_Index < 56)
-        {
-            Message_Block[Message_Block_Index++] = 0;
-        }
-    }
-    else
-    {
-        Message_Block[Message_Block_Index++] = 0x80;
-        while(Message_Block_Index < 56)
-        {
-            Message_Block[Message_Block_Index++] = 0;
-        }
-
-    }
-
-    /*
-    *    Store the message length as the last 8 octets
-    */
-    Message_Block[56] = (Length_High >> 24) & 0xFF;
-    Message_Block[57] = (Length_High >> 16) & 0xFF;
-    Message_Block[58] = (Length_High >> 8) & 0xFF;
-    Message_Block[59] = (Length_High) & 0xFF;
-    Message_Block[60] = (Length_Low >> 24) & 0xFF;
-    Message_Block[61] = (Length_Low >> 16) & 0xFF;
-    Message_Block[62] = (Length_Low >> 8) & 0xFF;
-    Message_Block[63] = (Length_Low) & 0xFF;
-
-    ProcessMessageBlock();
-}
-
-
-/*
-*    CircularShift
-*
-*    Description:
-*        This member function will perform a circular shifting operation.
-*
-*    Parameters:
-*        bits: [in]
-*            The number of bits to shift (1-31)
-*        word: [in]
-*            The value to shift (assumes a 32-bit integer)
-*
-*    Returns:
-*        The shifted value.
-*
-*    Comments:
-*
-*/
-unsigned SHA1::CircularShift(int bits, unsigned word)
-{
-    return ((word << bits) & 0xFFFFFFFF) | ((word & 0xFFFFFFFF) >> (32-bits));
-}
diff --git a/StarsEx/Sha1.h b/StarsEx/Sha1.h
deleted file mode 100644
index ec64462..0000000
--- a/StarsEx/Sha1.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
-*    Sha1.h
-*
-*    Copyright (C) 1998
-*    Paul E. Jones <paulej@acm.org>
-*    All Rights Reserved.
-*
-*****************************************************************************
-*    $Id: sha1.h,v 1.4 2001/03/20 06:25:06 paulej Exp $
-*****************************************************************************
-*
-*    Description:
-*         This class implements the Secure Hashing Standard as defined
-*         in FIPS PUB 180-1 published April 17, 1995.
-*
-*        Many of the variable names in this class, especially the single
-*        character names, were used because those were the names used
-*        in the publication.
-*
-*         Please read the file sha1.cpp for more information.
-*
-*/
-
-#ifndef _SHA1_H_
-#define _SHA1_H_
-
-class SHA1
-{
-
-public:
-
-    SHA1();
-    virtual ~SHA1();
-
-    /*
-        *    Re-initialize the class
-        */
-    void Reset();
-
-    /*
-        *    Returns the message digest
-        */
-    bool Result(unsigned *message_digest_array);
-
-    /*
-        *    Provide input to SHA1
-        */
-    void Input(    const unsigned char    *message_array,
-    unsigned            length);
-    void Input(    const char    *message_array,
-    unsigned    length);
-    void Input(unsigned char message_element);
-    void Input(char message_element);
-    SHA1& operator<<(const char *message_array);
-    SHA1& operator<<(const unsigned char *message_array);
-    SHA1& operator<<(const char message_element);
-    SHA1& operator<<(const unsigned char message_element);
-
-private:
-
-    /*
-        *    Process the next 512 bits of the message
-        */
-    void ProcessMessageBlock();
-
-    /*
-        *    Pads the current message block to 512 bits
-        */
-    void PadMessage();
-
-    /*
-        *    Performs a circular left shift operation
-        */
-    inline unsigned CircularShift(int bits, unsigned word);
-
-    unsigned H[5];                        // Message digest buffers
-
-    unsigned Length_Low;                // Message length in bits
-    unsigned Length_High;                // Message length in bits
-
-    unsigned char Message_Block[64];    // 512-bit message blocks
-    int Message_Block_Index;            // Index into message block array
-
-    bool Computed;                        // Is the digest computed?
-    bool Corrupted;                        // Is the message digest corruped?
-
-};
-
-#endif