move sha512,256 into apt-pkg/sha2.{cc,h}, move gifford implementation to sha2_internal.{cc,h}

1 files changed, 0 insertions, 424 deletions

diff --git a/apt-pkg/contrib/sha256.cc b/apt-pkg/contrib/sha256.cc
deleted file mode 100644
index e380c13ae..000000000
--- a/apt-pkg/contrib/sha256.cc
+++ /dev/null
@@ -1,424 +0,0 @@
-/*
- * Cryptographic API.							{{{
- *
- * SHA-256, as specified in
- * http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf
- *
- * SHA-256 code by Jean-Luc Cooke <jlcooke@certainkey.com>.
- *
- * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
- * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- *
- * Ported from the Linux kernel to Apt by Anthony Towns <ajt@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
- * any later version.
- *
- */									/*}}}*/
-
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/sha256.h"
-#endif
-
-
-#define SHA256_DIGEST_SIZE      32
-#define SHA256_HMAC_BLOCK_SIZE  64
-
-#define ror32(value,bits) (((value) >> (bits)) | ((value) << (32 - (bits))))
-
-#include <apt-pkg/sha256.h>
-#include <apt-pkg/strutl.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <arpa/inet.h>
-
-typedef uint32_t u32;
-typedef uint8_t  u8;
-
-static inline u32 Ch(u32 x, u32 y, u32 z)
-{
-        return z ^ (x & (y ^ z));
-}
-
-static inline u32 Maj(u32 x, u32 y, u32 z)
-{
-        return (x & y) | (z & (x | y));
-}
-
-#define e0(x)       (ror32(x, 2) ^ ror32(x,13) ^ ror32(x,22))
-#define e1(x)       (ror32(x, 6) ^ ror32(x,11) ^ ror32(x,25))
-#define s0(x)       (ror32(x, 7) ^ ror32(x,18) ^ (x >> 3))
-#define s1(x)       (ror32(x,17) ^ ror32(x,19) ^ (x >> 10))
-
-#define H0         0x6a09e667
-#define H1         0xbb67ae85
-#define H2         0x3c6ef372
-#define H3         0xa54ff53a
-#define H4         0x510e527f
-#define H5         0x9b05688c
-#define H6         0x1f83d9ab
-#define H7         0x5be0cd19
-
-static inline void LOAD_OP(int I, u32 *W, const u8 *input)		/*{{{*/
-{
-	W[I] = (  ((u32) input[I * 4 + 0] << 24)
-		| ((u32) input[I * 4 + 1] << 16)
-		| ((u32) input[I * 4 + 2] << 8)
-		| ((u32) input[I * 4 + 3]));
-}
-									/*}}}*/
-static inline void BLEND_OP(int I, u32 *W)
-{
-        W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
-}
-
-static void sha256_transform(u32 *state, const u8 *input)		/*{{{*/
-{
-        u32 a, b, c, d, e, f, g, h, t1, t2;
-        u32 W[64];
-        int i;
-
-        /* load the input */
-        for (i = 0; i < 16; i++)
-                LOAD_OP(i, W, input);
-
-        /* now blend */
-        for (i = 16; i < 64; i++)
-                BLEND_OP(i, W);
-    
-        /* load the state into our registers */
-        a=state[0];  b=state[1];  c=state[2];  d=state[3];
-        e=state[4];  f=state[5];  g=state[6];  h=state[7];
-
-        /* now iterate */
-        t1 = h + e1(e) + Ch(e,f,g) + 0x428a2f98 + W[ 0];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x71374491 + W[ 1];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0xb5c0fbcf + W[ 2];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0xe9b5dba5 + W[ 3];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x3956c25b + W[ 4];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x59f111f1 + W[ 5];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x923f82a4 + W[ 6];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0xab1c5ed5 + W[ 7];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0xd807aa98 + W[ 8];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x12835b01 + W[ 9];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x243185be + W[10];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x550c7dc3 + W[11];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x72be5d74 + W[12];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x80deb1fe + W[13];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x9bdc06a7 + W[14];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0xc19bf174 + W[15];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0xe49b69c1 + W[16];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0xefbe4786 + W[17];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x0fc19dc6 + W[18];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x240ca1cc + W[19];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x2de92c6f + W[20];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x4a7484aa + W[21];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x5cb0a9dc + W[22];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x76f988da + W[23];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x983e5152 + W[24];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0xa831c66d + W[25];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0xb00327c8 + W[26];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0xbf597fc7 + W[27];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0xc6e00bf3 + W[28];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0xd5a79147 + W[29];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x06ca6351 + W[30];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x14292967 + W[31];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x27b70a85 + W[32];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x2e1b2138 + W[33];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x4d2c6dfc + W[34];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x53380d13 + W[35];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x650a7354 + W[36];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x766a0abb + W[37];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x81c2c92e + W[38];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x92722c85 + W[39];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0xa2bfe8a1 + W[40];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0xa81a664b + W[41];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0xc24b8b70 + W[42];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0xc76c51a3 + W[43];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0xd192e819 + W[44];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0xd6990624 + W[45];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0xf40e3585 + W[46];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x106aa070 + W[47];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x19a4c116 + W[48];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x1e376c08 + W[49];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x2748774c + W[50];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x34b0bcb5 + W[51];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x391c0cb3 + W[52];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x4ed8aa4a + W[53];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x5b9cca4f + W[54];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x682e6ff3 + W[55];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x748f82ee + W[56];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x78a5636f + W[57];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x84c87814 + W[58];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x8cc70208 + W[59];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x90befffa + W[60];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0xa4506ceb + W[61];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0xbef9a3f7 + W[62];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0xc67178f2 + W[63];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        state[0] += a; state[1] += b; state[2] += c; state[3] += d;
-        state[4] += e; state[5] += f; state[6] += g; state[7] += h;
-
-        /* clear any sensitive info... */
-        a = b = c = d = e = f = g = h = t1 = t2 = 0;
-        memset(W, 0, 64 * sizeof(u32));
-}
-									/*}}}*/
-SHA256Summation::SHA256Summation()					/*{{{*/
-{
-        Sum.state[0] = H0;
-        Sum.state[1] = H1;
-        Sum.state[2] = H2;
-        Sum.state[3] = H3;
-        Sum.state[4] = H4;
-        Sum.state[5] = H5;
-        Sum.state[6] = H6;
-        Sum.state[7] = H7;
-        Sum.count[0] = Sum.count[1] = 0;
-        memset(Sum.buf, 0, sizeof(Sum.buf));
-        Done = false;
-}
-									/*}}}*/
-bool SHA256Summation::Add(const u8 *data, unsigned long len)		/*{{{*/
-{
-        struct sha256_ctx *sctx = &Sum;
-        unsigned int i, index, part_len;
-
-        if (Done) return false;
-
-        /* Compute number of bytes mod 128 */
-        index = (unsigned int)((sctx->count[0] >> 3) & 0x3f);
-
-        /* Update number of bits */
-        if ((sctx->count[0] += (len << 3)) < (len << 3)) {
-                sctx->count[1]++;
-                sctx->count[1] += (len >> 29);
-        }
-
-        part_len = 64 - index;
-
-        /* Transform as many times as possible. */
-        if (len >= part_len) {
-                memcpy(&sctx->buf[index], data, part_len);
-                sha256_transform(sctx->state, sctx->buf);
-
-                for (i = part_len; i + 63 < len; i += 64)
-                        sha256_transform(sctx->state, &data[i]);
-                index = 0;
-        } else {
-                i = 0;
-        }
-
-        /* Buffer remaining input */
-        memcpy(&sctx->buf[index], &data[i], len-i);
-
-        return true;
-}
-									/*}}}*/
-SHA256SumValue SHA256Summation::Result()				/*{{{*/
-{
-   struct sha256_ctx *sctx = &Sum;
-   if (!Done) {
-        u8 bits[8];
-        unsigned int index, pad_len, t;
-        static const u8 padding[64] = { 0x80, };
-
-        /* Save number of bits */
-        t = sctx->count[0];
-        bits[7] = t; t >>= 8;
-        bits[6] = t; t >>= 8;
-        bits[5] = t; t >>= 8;
-        bits[4] = t;
-        t = sctx->count[1];
-        bits[3] = t; t >>= 8;
-        bits[2] = t; t >>= 8;
-        bits[1] = t; t >>= 8;
-        bits[0] = t;
-
-        /* Pad out to 56 mod 64. */
-        index = (sctx->count[0] >> 3) & 0x3f;
-        pad_len = (index < 56) ? (56 - index) : ((64+56) - index);
-        Add(padding, pad_len);
-
-        /* Append length (before padding) */
-        Add(bits, 8);
-   }
-
-   Done = true;
-
-   /* Store state in digest */
-
-   SHA256SumValue res;
-   u8 *out = res.Sum;
-
-   int i, j;
-   unsigned int t;
-   for (i = j = 0; i < 8; i++, j += 4) {
-      t = sctx->state[i];
-      out[j+3] = t; t >>= 8;
-      out[j+2] = t; t >>= 8;
-      out[j+1] = t; t >>= 8;
-      out[j  ] = t;
-   }
-
-   return res;
-}
-									/*}}}*/
-// SHA256SumValue::SHA256SumValue - Constructs the sum from a string   /*{{{*/
-// ---------------------------------------------------------------------
-/* The string form of a SHA256 is a 64 character hex number */
-SHA256SumValue::SHA256SumValue(string Str)
-{
-   memset(Sum,0,sizeof(Sum));
-   Set(Str);
-}
-                                                                       /*}}}*/
-// SHA256SumValue::SHA256SumValue - Default constructor                /*{{{*/
-// ---------------------------------------------------------------------
-/* Sets the value to 0 */
-SHA256SumValue::SHA256SumValue()
-{
-   memset(Sum,0,sizeof(Sum));
-}
-                                                                       /*}}}*/
-// SHA256SumValue::Set - Set the sum from a string                     /*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the hex string into a set of chars */
-bool SHA256SumValue::Set(string Str)
-{
-   return Hex2Num(Str,Sum,sizeof(Sum));
-}
-                                                                       /*}}}*/
-// SHA256SumValue::Value - Convert the number into a string            /*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the set of chars into a hex string in lower case */
-string SHA256SumValue::Value() const
-{
-   char Conv[16] =
-      { '0','1','2','3','4','5','6','7','8','9','a','b',
-      'c','d','e','f'
-   };
-   char Result[65];
-   Result[64] = 0;
-
-   // Convert each char into two letters
-   int J = 0;
-   int I = 0;
-   for (; I != 64; J++,I += 2)
-   {
-      Result[I] = Conv[Sum[J] >> 4];
-      Result[I + 1] = Conv[Sum[J] & 0xF];
-   }
-
-   return string(Result);
-}
-									/*}}}*/
-// SHA256SumValue::operator == - Comparator                            /*{{{*/
-// ---------------------------------------------------------------------
-/* Call memcmp on the buffer */
-bool SHA256SumValue::operator == (const SHA256SumValue & rhs) const
-{
-   return memcmp(Sum,rhs.Sum,sizeof(Sum)) == 0;
-}
-                                                                       /*}}}*/
-// SHA256Summation::AddFD - Add content of file into the checksum      /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool SHA256Summation::AddFD(int Fd,unsigned long Size)
-{
-   unsigned char Buf[64 * 64];
-   int Res = 0;
-   int ToEOF = (Size == 0);
-   while (Size != 0 || ToEOF)
-   {
-      unsigned n = sizeof(Buf);
-      if (!ToEOF) n = min(Size,(unsigned long)n);
-      Res = read(Fd,Buf,n);
-      if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
-         return false;
-      if (ToEOF && Res == 0) // EOF
-         break;
-      Size -= Res;
-      Add(Buf,Res);
-   }
-   return true;
-}
-                                                                       /*}}}*/
-