Add sha512sum(1)
This commit is contained in:
sin
David Galos
parent
b5b7db4009
commit
9e5718282a
6
Makefile
6
Makefile
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@ -3,7 +3,7 @@ include config.mk
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.POSIX:
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.SUFFIXES: .c .o
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HDR = crypt.h fs.h text.h md5.h sha1.h util.h arg.h
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HDR = crypt.h fs.h text.h md5.h sha1.h sha256.h sha512.h util.h arg.h
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LIB = \
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util/afgets.o \
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util/agetcwd.o \
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@ -21,7 +21,8 @@ LIB = \
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util/recurse.o \
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util/rm.o \
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util/sha1.o \
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util/sha256.o
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util/sha256.o \
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util/sha512.o
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SRC = \
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basename.c \
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@ -82,6 +83,7 @@ SRC = \
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seq.c \
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sha1sum.c \
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sha256sum.c\
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sha512sum.c\
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wc.c \
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who.c \
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yes.c
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@ -9,7 +9,7 @@ MANPREFIX = $(PREFIX)/share/man
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#CC = musl-gcc
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LD = $(CC)
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CPPFLAGS = -D_BSD_SOURCE -D_GNU_SOURCE
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CFLAGS = -g -ansi -Wall -pedantic $(CPPFLAGS)
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CFLAGS = -g -ansi -Wall -Wno-long-long -pedantic $(CPPFLAGS)
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LDFLAGS = -g
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#CC = tcc
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18
sha512.h
Normal file
18
sha512.h
Normal file
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@ -0,0 +1,18 @@
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/* public domain sha512 implementation based on fips180-3 */
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struct sha512 {
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uint64_t len; /* processed message length */
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uint64_t h[8]; /* hash state */
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uint8_t buf[128]; /* message block buffer */
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};
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enum { SHA512_DIGEST_LENGTH = 64 };
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/* reset state */
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void sha512_init(void *ctx);
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/* process message */
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void sha512_update(void *ctx, const void *m, unsigned long len);
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/* get message digest */
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/* state is ruined after sum, keep a copy if multiple sum is needed */
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/* part of the message might be left in s, zero it if secrecy is needed */
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void sha512_sum(void *ctx, uint8_t md[SHA512_DIGEST_LENGTH]);
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8
sha512sum.1
Normal file
8
sha512sum.1
Normal file
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@ -0,0 +1,8 @@
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.TH SHA512SUM 1 sbase\-VERSION
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.SH NAME
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sha512sum \- compute SHA512 message digest
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.SH SYNOPSIS
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.B sha512sum
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.RI [ file ...]
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.SH DESCRIPTION
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Print SHA512 (512-bit) checksums. With no file, read standard input.
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49
sha512sum.c
Normal file
49
sha512sum.c
Normal file
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@ -0,0 +1,49 @@
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/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "util.h"
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#include "crypt.h"
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#include "sha512.h"
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struct sha512 s;
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struct crypt_ops sha512_ops = {
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sha512_init,
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sha512_update,
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sha512_sum,
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&s,
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};
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static void
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usage(void)
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{
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eprintf("usage: %s [file...]\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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FILE *fp;
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uint8_t md[SHA512_DIGEST_LENGTH];
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ARGBEGIN {
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default:
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usage();
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} ARGEND;
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if (argc == 0) {
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cryptsum(&sha512_ops, stdin, "<stdin>", md);
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mdprint(md, "<stdin>", sizeof(md));
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} else {
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for (; argc > 0; argc--) {
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if ((fp = fopen(*argv, "r")) == NULL)
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eprintf("fopen %s:", *argv);
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cryptsum(&sha512_ops, fp, *argv, md);
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mdprint(md, *argv, sizeof(md));
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fclose(fp);
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argv++;
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}
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}
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return 0;
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}
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163
util/sha512.c
Normal file
163
util/sha512.c
Normal file
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@ -0,0 +1,163 @@
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/* public domain sha256 implementation based on fips180-3 */
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#include <ctype.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include "../sha512.h"
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static uint64_t ror(uint64_t n, int k) { return (n >> k) | (n << (64-k)); }
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#define Ch(x,y,z) (z ^ (x & (y ^ z)))
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#define Maj(x,y,z) ((x & y) | (z & (x | y)))
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#define S0(x) (ror(x,28) ^ ror(x,34) ^ ror(x,39))
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#define S1(x) (ror(x,14) ^ ror(x,18) ^ ror(x,41))
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#define R0(x) (ror(x,1) ^ ror(x,8) ^ (x>>7))
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#define R1(x) (ror(x,19) ^ ror(x,61) ^ (x>>6))
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static const uint64_t K[80] = {
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0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
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0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
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0xd807aa98a3030242ULL, 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
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0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
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0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
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0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
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0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
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0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
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0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
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0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
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0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
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0xd192e819d6ef5218ULL, 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
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0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
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0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
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0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
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0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
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0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
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0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
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0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
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0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
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};
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static void processblock(struct sha512 *s, const uint8_t *buf)
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{
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uint64_t W[80], t1, t2, a, b, c, d, e, f, g, h;
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int i;
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for (i = 0; i < 16; i++) {
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W[i] = (uint64_t)buf[8*i]<<56;
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W[i] |= (uint64_t)buf[8*i+1]<<48;
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W[i] |= (uint64_t)buf[8*i+2]<<40;
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W[i] |= (uint64_t)buf[8*i+3]<<32;
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W[i] |= (uint64_t)buf[8*i+4]<<24;
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W[i] |= (uint64_t)buf[8*i+5]<<16;
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W[i] |= (uint64_t)buf[8*i+6]<<8;
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W[i] |= buf[8*i+7];
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}
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for (; i < 80; i++)
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W[i] = R1(W[i-2]) + W[i-7] + R0(W[i-15]) + W[i-16];
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a = s->h[0];
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b = s->h[1];
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c = s->h[2];
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d = s->h[3];
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e = s->h[4];
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f = s->h[5];
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g = s->h[6];
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h = s->h[7];
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for (i = 0; i < 80; i++) {
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t1 = h + S1(e) + Ch(e,f,g) + K[i] + W[i];
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t2 = S0(a) + Maj(a,b,c);
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h = g;
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g = f;
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f = e;
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e = d + t1;
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d = c;
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c = b;
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b = a;
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a = t1 + t2;
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}
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s->h[0] += a;
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s->h[1] += b;
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s->h[2] += c;
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s->h[3] += d;
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s->h[4] += e;
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s->h[5] += f;
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s->h[6] += g;
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s->h[7] += h;
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}
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static void pad(struct sha512 *s)
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{
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unsigned r = s->len % 128;
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s->buf[r++] = 0x80;
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if (r > 112) {
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memset(s->buf + r, 0, 128 - r);
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r = 0;
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processblock(s, s->buf);
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}
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memset(s->buf + r, 0, 120 - r);
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s->len *= 8;
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s->buf[120] = s->len >> 56;
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s->buf[121] = s->len >> 48;
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s->buf[122] = s->len >> 40;
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s->buf[123] = s->len >> 32;
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s->buf[124] = s->len >> 24;
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s->buf[125] = s->len >> 16;
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s->buf[126] = s->len >> 8;
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s->buf[127] = s->len;
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processblock(s, s->buf);
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}
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void sha512_init(void *ctx)
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{
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struct sha512 *s = ctx;
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s->len = 0;
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s->h[0] = 0x6a09e667f3bcc908ULL;
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s->h[1] = 0xbb67ae8584caa73bULL;
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s->h[2] = 0x3c6ef372fe94f82bULL;
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s->h[3] = 0xa54ff53a5f1d36f1ULL;
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s->h[4] = 0x510e527fade682d1ULL;
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s->h[5] = 0x9b05688c2b3e6c1fULL;
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s->h[6] = 0x1f83d9abfb41bd6bULL;
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s->h[7] = 0x5be0cd19137e2179ULL;
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}
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void sha512_sum(void *ctx, uint8_t md[SHA512_DIGEST_LENGTH])
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{
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struct sha512 *s = ctx;
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int i;
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pad(s);
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for (i = 0; i < 8; i++) {
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md[8*i] = s->h[i] >> 56;
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md[8*i+1] = s->h[i] >> 48;
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md[8*i+2] = s->h[i] >> 40;
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md[8*i+3] = s->h[i] >> 32;
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md[8*i+4] = s->h[i] >> 24;
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md[8*i+5] = s->h[i] >> 16;
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md[8*i+6] = s->h[i] >> 8;
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md[8*i+7] = s->h[i];
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}
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}
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void sha512_update(void *ctx, const void *m, unsigned long len)
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{
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struct sha512 *s = ctx;
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const uint8_t *p = m;
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unsigned r = s->len % 128;
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s->len += len;
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if (r) {
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if (len < 128 - r) {
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memcpy(s->buf + r, p, len);
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return;
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}
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memcpy(s->buf + r, p, 128 - r);
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len -= 128 - r;
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p += 128 - r;
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processblock(s, s->buf);
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}
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for (; len >= 128; len -= 128, p += 128)
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processblock(s, p);
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memcpy(s->buf, p, len);
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}
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