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-rw-r--r--toys/other/sha1sum.c156
1 files changed, 0 insertions, 156 deletions
diff --git a/toys/other/sha1sum.c b/toys/other/sha1sum.c
deleted file mode 100644
index 984baad5..00000000
--- a/toys/other/sha1sum.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/* vi: set sw=4 ts=4:
- *
- * sha1sum.c - Calculate sha1 cryptographic hash for input.
- *
- * Copyright 2007 Rob Landley <rob@landley.net>
- *
- * Based on the public domain SHA-1 in C by Steve Reid <steve@edmweb.com>
- * from http://www.mirrors.wiretapped.net/security/cryptography/hashes/sha1/
-
-USE_SHA1SUM(NEWTOY(sha1sum, NULL, TOYFLAG_USR|TOYFLAG_BIN))
-
-config SHA1SUM
- bool "sha1sum"
- default y
- help
- usage: sha1sum [file...]
-
- Calculate sha1 hash of files (or stdin).
-*/
-
-#define FOR_sha1sum
-#include <toys.h>
-
-GLOBALS(
- uint32_t state[5];
- uint32_t oldstate[5];
- uint64_t count;
- union {
- unsigned char c[64];
- uint32_t i[16];
- } buffer;
-)
-
-
-static const unsigned rconsts[]={0x5A827999,0x6ED9EBA1,0x8F1BBCDC,0xCA62C1D6};
-
-// Hash a single 512-bit block. This is the core of the algorithm.
-
-#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
-static void sha1_transform(void)
-{
- int i, j, k, count;
- unsigned *block = TT.buffer.i;
- unsigned *rot[5], *temp;
-
- // Copy context->state[] to working vars
- for (i=0; i<5; i++) {
- TT.oldstate[i] = TT.state[i];
- rot[i] = TT.state + i;
- }
- // 4 rounds of 20 operations each.
- for (i=count=0; i<4; i++) {
- for (j=0; j<20; j++) {
- unsigned work;
-
- work = *rot[2] ^ *rot[3];
- if (!i) work = (work & *rot[1]) ^ *rot[3];
- else {
- if (i==2)
- work = ((*rot[1]|*rot[2])&*rot[3])|(*rot[1]&*rot[2]);
- else work ^= *rot[1];
- }
-
- if (!i && j<16) work += block[count] = (rol(block[count],24)&0xFF00FF00) | (rol(block[count],8)&0x00FF00FF);
- else work += block[count&15] = rol(block[(count+13)&15]^block[(count+8)&15]^block[(count+2)&15]^block[count&15],1);
- *rot[4] += work + rol(*rot[0],5) + rconsts[i];
- *rot[1] = rol(*rot[1],30);
-
- // Rotate by one for next time.
- temp = rot[4];
- for (k=4; k; k--) rot[k] = rot[k-1];
- *rot = temp;
- count++;
- }
- }
- // Add the previous values of state[]
- for (i=0; i<5; i++) TT.state[i] += TT.oldstate[i];
-}
-
-// Fill the 64-byte working buffer and call sha1_transform() when full.
-
-static void sha1_update(char *data, unsigned int len)
-{
- unsigned int i, j;
-
- j = TT.count & 63;
- TT.count += len;
-
- // Enough data to process a frame?
- if ((j + len) > 63) {
- i = 64-j;
- memcpy(TT.buffer.c + j, data, i);
- sha1_transform();
- for ( ; i + 63 < len; i += 64) {
- memcpy(TT.buffer.c, data + i, 64);
- sha1_transform();
- }
- j = 0;
- } else i = 0;
- // Grab remaining chunk
- memcpy(TT.buffer.c + j, data + i, len - i);
-}
-
-// Callback for loopfiles()
-
-static void do_sha1(int fd, char *name)
-{
- uint64_t count;
- int i;
- char buf;
-
- /* SHA1 initialization constants */
- TT.state[0] = 0x67452301;
- TT.state[1] = 0xEFCDAB89;
- TT.state[2] = 0x98BADCFE;
- TT.state[3] = 0x10325476;
- TT.state[4] = 0xC3D2E1F0;
- TT.count = 0;
-
- for (;;) {
- i = read(fd, toybuf, sizeof(toybuf));
- if (i<1) break;
- sha1_update(toybuf, i);
- }
-
- count = TT.count << 3;
-
- // End the message by appending a "1" bit to the data, ending with the
- // message size (in bits, big endian), and adding enough zero bits in
- // between to pad to the end of the next 64-byte frame.
- //
- // Since our input up to now has been in whole bytes, we can deal with
- // bytes here too.
-
- buf = 0x80;
- do {
- sha1_update(&buf, 1);
- buf = 0;
- } while ((TT.count & 63) != 56);
- for (i = 0; i < 8; i++)
- TT.buffer.c[56+i] = count >> (8*(7-i));
- sha1_transform();
-
- for (i = 0; i < 20; i++)
- toybuf[i] = TT.state[i>>2] >> ((3-(i & 3)) * 8);
- // Wipe variables. Cryptogropher paranoia.
- memset(&TT, 0, sizeof(TT));
-
- for (i = 0; i < 20; i++) printf("%02x", toybuf[i]);
- printf(" %s\n", name);
-}
-
-void sha1sum_main(void)
-{
- loopfiles(toys.optargs, do_sha1);
-}