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- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include "apps.h"
- #include "progs.h"
- #include <openssl/bio.h>
- #include <openssl/err.h>
- #include <openssl/evp.h>
- #include <openssl/objects.h>
- #include <openssl/x509.h>
- #include <openssl/pem.h>
- #include <openssl/hmac.h>
- #include <ctype.h>
- #undef BUFSIZE
- #define BUFSIZE 1024*8
- int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, int xoflen,
- EVP_PKEY *key, unsigned char *sigin, int siglen,
- const char *sig_name, const char *md_name,
- const char *file);
- static void show_digests(const OBJ_NAME *name, void *bio_);
- struct doall_dgst_digests {
- BIO *bio;
- int n;
- };
- typedef enum OPTION_choice {
- OPT_COMMON,
- OPT_LIST,
- OPT_C, OPT_R, OPT_OUT, OPT_SIGN, OPT_PASSIN, OPT_VERIFY,
- OPT_PRVERIFY, OPT_SIGNATURE, OPT_KEYFORM, OPT_ENGINE, OPT_ENGINE_IMPL,
- OPT_HEX, OPT_BINARY, OPT_DEBUG, OPT_FIPS_FINGERPRINT,
- OPT_HMAC, OPT_MAC, OPT_SIGOPT, OPT_MACOPT, OPT_XOFLEN,
- OPT_DIGEST,
- OPT_R_ENUM, OPT_PROV_ENUM
- } OPTION_CHOICE;
- const OPTIONS dgst_options[] = {
- {OPT_HELP_STR, 1, '-', "Usage: %s [options] [file...]\n"},
- OPT_SECTION("General"),
- {"help", OPT_HELP, '-', "Display this summary"},
- {"list", OPT_LIST, '-', "List digests"},
- #ifndef OPENSSL_NO_ENGINE
- {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
- {"engine_impl", OPT_ENGINE_IMPL, '-',
- "Also use engine given by -engine for digest operations"},
- #endif
- {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
- OPT_SECTION("Output"),
- {"c", OPT_C, '-', "Print the digest with separating colons"},
- {"r", OPT_R, '-', "Print the digest in coreutils format"},
- {"out", OPT_OUT, '>', "Output to filename rather than stdout"},
- {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
- {"hex", OPT_HEX, '-', "Print as hex dump"},
- {"binary", OPT_BINARY, '-', "Print in binary form"},
- {"xoflen", OPT_XOFLEN, 'p', "Output length for XOF algorithms. To obtain the maximum security strength set this to 32 (or greater) for SHAKE128, and 64 (or greater) for SHAKE256"},
- {"d", OPT_DEBUG, '-', "Print debug info"},
- {"debug", OPT_DEBUG, '-', "Print debug info"},
- OPT_SECTION("Signing"),
- {"sign", OPT_SIGN, 's', "Sign digest using private key"},
- {"verify", OPT_VERIFY, 's', "Verify a signature using public key"},
- {"prverify", OPT_PRVERIFY, 's', "Verify a signature using private key"},
- {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
- {"signature", OPT_SIGNATURE, '<', "File with signature to verify"},
- {"hmac", OPT_HMAC, 's', "Create hashed MAC with key"},
- {"mac", OPT_MAC, 's', "Create MAC (not necessarily HMAC)"},
- {"macopt", OPT_MACOPT, 's', "MAC algorithm parameters in n:v form or key"},
- {"", OPT_DIGEST, '-', "Any supported digest"},
- {"fips-fingerprint", OPT_FIPS_FINGERPRINT, '-',
- "Compute HMAC with the key used in OpenSSL-FIPS fingerprint"},
- OPT_R_OPTIONS,
- OPT_PROV_OPTIONS,
- OPT_PARAMETERS(),
- {"file", 0, 0, "Files to digest (optional; default is stdin)"},
- {NULL}
- };
- int dgst_main(int argc, char **argv)
- {
- BIO *in = NULL, *inp, *bmd = NULL, *out = NULL;
- ENGINE *e = NULL, *impl = NULL;
- EVP_PKEY *sigkey = NULL;
- STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL;
- char *hmac_key = NULL;
- char *mac_name = NULL, *digestname = NULL;
- char *passinarg = NULL, *passin = NULL;
- EVP_MD *md = NULL;
- const char *outfile = NULL, *keyfile = NULL, *prog = NULL;
- const char *sigfile = NULL;
- const char *md_name = NULL;
- OPTION_CHOICE o;
- int separator = 0, debug = 0, keyform = FORMAT_UNDEF, siglen = 0;
- int i, ret = EXIT_FAILURE, out_bin = -1, want_pub = 0, do_verify = 0;
- int xoflen = 0;
- unsigned char *buf = NULL, *sigbuf = NULL;
- int engine_impl = 0;
- struct doall_dgst_digests dec;
- buf = app_malloc(BUFSIZE, "I/O buffer");
- md = (EVP_MD *)EVP_get_digestbyname(argv[0]);
- if (md != NULL)
- digestname = argv[0];
- opt_set_unknown_name("digest");
- prog = opt_init(argc, argv, dgst_options);
- while ((o = opt_next()) != OPT_EOF) {
- switch (o) {
- case OPT_EOF:
- case OPT_ERR:
- opthelp:
- BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
- goto end;
- case OPT_HELP:
- opt_help(dgst_options);
- ret = EXIT_SUCCESS;
- goto end;
- case OPT_LIST:
- BIO_printf(bio_out, "Supported digests:\n");
- dec.bio = bio_out;
- dec.n = 0;
- OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH,
- show_digests, &dec);
- BIO_printf(bio_out, "\n");
- ret = EXIT_SUCCESS;
- goto end;
- case OPT_C:
- separator = 1;
- break;
- case OPT_R:
- separator = 2;
- break;
- case OPT_R_CASES:
- if (!opt_rand(o))
- goto end;
- break;
- case OPT_OUT:
- outfile = opt_arg();
- break;
- case OPT_SIGN:
- keyfile = opt_arg();
- break;
- case OPT_PASSIN:
- passinarg = opt_arg();
- break;
- case OPT_VERIFY:
- keyfile = opt_arg();
- want_pub = do_verify = 1;
- break;
- case OPT_PRVERIFY:
- keyfile = opt_arg();
- do_verify = 1;
- break;
- case OPT_SIGNATURE:
- sigfile = opt_arg();
- break;
- case OPT_KEYFORM:
- if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
- goto opthelp;
- break;
- case OPT_ENGINE:
- e = setup_engine(opt_arg(), 0);
- break;
- case OPT_ENGINE_IMPL:
- engine_impl = 1;
- break;
- case OPT_HEX:
- out_bin = 0;
- break;
- case OPT_BINARY:
- out_bin = 1;
- break;
- case OPT_XOFLEN:
- xoflen = atoi(opt_arg());
- break;
- case OPT_DEBUG:
- debug = 1;
- break;
- case OPT_FIPS_FINGERPRINT:
- hmac_key = "etaonrishdlcupfm";
- break;
- case OPT_HMAC:
- hmac_key = opt_arg();
- break;
- case OPT_MAC:
- mac_name = opt_arg();
- break;
- case OPT_SIGOPT:
- if (!sigopts)
- sigopts = sk_OPENSSL_STRING_new_null();
- if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
- goto opthelp;
- break;
- case OPT_MACOPT:
- if (!macopts)
- macopts = sk_OPENSSL_STRING_new_null();
- if (!macopts || !sk_OPENSSL_STRING_push(macopts, opt_arg()))
- goto opthelp;
- break;
- case OPT_DIGEST:
- digestname = opt_unknown();
- break;
- case OPT_PROV_CASES:
- if (!opt_provider(o))
- goto end;
- break;
- }
- }
-
- argc = opt_num_rest();
- argv = opt_rest();
- if (keyfile != NULL && argc > 1) {
- BIO_printf(bio_err, "%s: Can only sign or verify one file.\n", prog);
- goto end;
- }
- if (!app_RAND_load())
- goto end;
- if (digestname != NULL) {
- if (!opt_md(digestname, &md))
- goto opthelp;
- }
- if (do_verify && sigfile == NULL) {
- BIO_printf(bio_err,
- "No signature to verify: use the -signature option\n");
- goto end;
- }
- if (engine_impl)
- impl = e;
- in = BIO_new(BIO_s_file());
- bmd = BIO_new(BIO_f_md());
- if (in == NULL || bmd == NULL)
- goto end;
- if (debug) {
- BIO_set_callback_ex(in, BIO_debug_callback_ex);
-
- BIO_set_callback_arg(in, (char *)bio_err);
- }
- if (!app_passwd(passinarg, NULL, &passin, NULL)) {
- BIO_printf(bio_err, "Error getting password\n");
- goto end;
- }
- if (out_bin == -1) {
- if (keyfile != NULL)
- out_bin = 1;
- else
- out_bin = 0;
- }
- out = bio_open_default(outfile, 'w', out_bin ? FORMAT_BINARY : FORMAT_TEXT);
- if (out == NULL)
- goto end;
- if ((!(mac_name == NULL) + !(keyfile == NULL) + !(hmac_key == NULL)) > 1) {
- BIO_printf(bio_err, "MAC and signing key cannot both be specified\n");
- goto end;
- }
- if (keyfile != NULL) {
- int type;
- if (want_pub)
- sigkey = load_pubkey(keyfile, keyform, 0, NULL, e, "public key");
- else
- sigkey = load_key(keyfile, keyform, 0, passin, e, "private key");
- if (sigkey == NULL) {
-
- goto end;
- }
- type = EVP_PKEY_get_id(sigkey);
- if (type == EVP_PKEY_ED25519 || type == EVP_PKEY_ED448) {
-
- BIO_printf(bio_err, "Key type not supported for this operation\n");
- goto end;
- }
- }
- if (mac_name != NULL) {
- EVP_PKEY_CTX *mac_ctx = NULL;
- if (!init_gen_str(&mac_ctx, mac_name, impl, 0, NULL, NULL))
- goto end;
- if (macopts != NULL) {
- for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
- char *macopt = sk_OPENSSL_STRING_value(macopts, i);
- if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
- EVP_PKEY_CTX_free(mac_ctx);
- BIO_printf(bio_err, "MAC parameter error \"%s\"\n", macopt);
- goto end;
- }
- }
- }
- sigkey = app_keygen(mac_ctx, mac_name, 0, 0 );
-
- EVP_PKEY_CTX_free(mac_ctx);
- if (sigkey == NULL)
- goto end;
- }
- if (hmac_key != NULL) {
- if (md == NULL) {
- md = (EVP_MD *)EVP_sha256();
- digestname = SN_sha256;
- }
- sigkey = EVP_PKEY_new_raw_private_key(EVP_PKEY_HMAC, impl,
- (unsigned char *)hmac_key,
- strlen(hmac_key));
- if (sigkey == NULL)
- goto end;
- }
- if (sigkey != NULL) {
- EVP_MD_CTX *mctx = NULL;
- EVP_PKEY_CTX *pctx = NULL;
- int res;
- if (BIO_get_md_ctx(bmd, &mctx) <= 0) {
- BIO_printf(bio_err, "Error getting context\n");
- goto end;
- }
- if (do_verify)
- if (impl == NULL)
- res = EVP_DigestVerifyInit_ex(mctx, &pctx, digestname,
- app_get0_libctx(),
- app_get0_propq(), sigkey, NULL);
- else
- res = EVP_DigestVerifyInit(mctx, &pctx, md, impl, sigkey);
- else
- if (impl == NULL)
- res = EVP_DigestSignInit_ex(mctx, &pctx, digestname,
- app_get0_libctx(),
- app_get0_propq(), sigkey, NULL);
- else
- res = EVP_DigestSignInit(mctx, &pctx, md, impl, sigkey);
- if (res == 0) {
- BIO_printf(bio_err, "Error setting context\n");
- goto end;
- }
- if (sigopts != NULL) {
- for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
- char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
- if (pkey_ctrl_string(pctx, sigopt) <= 0) {
- BIO_printf(bio_err, "Signature parameter error \"%s\"\n",
- sigopt);
- goto end;
- }
- }
- }
- }
-
- else {
- EVP_MD_CTX *mctx = NULL;
- if (BIO_get_md_ctx(bmd, &mctx) <= 0) {
- BIO_printf(bio_err, "Error getting context\n");
- goto end;
- }
- if (md == NULL)
- md = (EVP_MD *)EVP_sha256();
- if (!EVP_DigestInit_ex(mctx, md, impl)) {
- BIO_printf(bio_err, "Error setting digest\n");
- goto end;
- }
- }
- if (sigfile != NULL && sigkey != NULL) {
- BIO *sigbio = BIO_new_file(sigfile, "rb");
- if (sigbio == NULL) {
- BIO_printf(bio_err, "Error opening signature file %s\n", sigfile);
- goto end;
- }
- siglen = EVP_PKEY_get_size(sigkey);
- sigbuf = app_malloc(siglen, "signature buffer");
- siglen = BIO_read(sigbio, sigbuf, siglen);
- BIO_free(sigbio);
- if (siglen <= 0) {
- BIO_printf(bio_err, "Error reading signature file %s\n", sigfile);
- goto end;
- }
- }
- inp = BIO_push(bmd, in);
- if (md == NULL) {
- EVP_MD_CTX *tctx;
- BIO_get_md_ctx(bmd, &tctx);
- md = EVP_MD_CTX_get1_md(tctx);
- }
- if (md != NULL)
- md_name = EVP_MD_get0_name(md);
- if (xoflen > 0) {
- if (!(EVP_MD_get_flags(md) & EVP_MD_FLAG_XOF)) {
- BIO_printf(bio_err, "Length can only be specified for XOF\n");
- goto end;
- }
-
- if (sigkey != NULL) {
- BIO_printf(bio_err, "Signing key cannot be specified for XOF\n");
- goto end;
- }
- }
- if (argc == 0) {
- BIO_set_fp(in, stdin, BIO_NOCLOSE);
- ret = do_fp(out, buf, inp, separator, out_bin, xoflen, sigkey, sigbuf,
- siglen, NULL, md_name, "stdin");
- } else {
- const char *sig_name = NULL;
- if (out_bin == 0) {
- if (sigkey != NULL)
- sig_name = EVP_PKEY_get0_type_name(sigkey);
- }
- ret = EXIT_SUCCESS;
- for (i = 0; i < argc; i++) {
- if (BIO_read_filename(in, argv[i]) <= 0) {
- perror(argv[i]);
- ret = EXIT_FAILURE;
- continue;
- } else {
- if (do_fp(out, buf, inp, separator, out_bin, xoflen,
- sigkey, sigbuf, siglen, sig_name, md_name, argv[i]))
- ret = EXIT_FAILURE;
- }
- (void)BIO_reset(bmd);
- }
- }
- end:
- if (ret != EXIT_SUCCESS)
- ERR_print_errors(bio_err);
- OPENSSL_clear_free(buf, BUFSIZE);
- BIO_free(in);
- OPENSSL_free(passin);
- BIO_free_all(out);
- EVP_MD_free(md);
- EVP_PKEY_free(sigkey);
- sk_OPENSSL_STRING_free(sigopts);
- sk_OPENSSL_STRING_free(macopts);
- OPENSSL_free(sigbuf);
- BIO_free(bmd);
- release_engine(e);
- return ret;
- }
- static void show_digests(const OBJ_NAME *name, void *arg)
- {
- struct doall_dgst_digests *dec = (struct doall_dgst_digests *)arg;
- const EVP_MD *md = NULL;
-
- if (strstr(name->name, "rsa") != NULL || strstr(name->name, "RSA") != NULL)
- return;
- if (!islower((unsigned char)*name->name))
- return;
-
- md = EVP_MD_fetch(app_get0_libctx(), name->name, app_get0_propq());
- if (md == NULL) {
- md = EVP_get_digestbyname(name->name);
- if (md == NULL)
- return;
- }
- BIO_printf(dec->bio, "-%-25s", name->name);
- if (++dec->n == 3) {
- BIO_printf(dec->bio, "\n");
- dec->n = 0;
- } else {
- BIO_printf(dec->bio, " ");
- }
- }
- static const char *newline_escape_filename(const char *file, int *backslash)
- {
- size_t i, e = 0, length = strlen(file), newline_count = 0, mem_len = 0;
- char *file_cpy = NULL;
- for (i = 0; i < length; i++)
- if (file[i] == '\n')
- newline_count++;
- mem_len = length + newline_count + 1;
- file_cpy = app_malloc(mem_len, file);
- i = 0;
- while (e < length) {
- const char c = file[e];
- if (c == '\n') {
- file_cpy[i++] = '\\';
- file_cpy[i++] = 'n';
- *backslash = 1;
- } else {
- file_cpy[i++] = c;
- }
- e++;
- }
- file_cpy[i] = '\0';
- return (const char*)file_cpy;
- }
- int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, int xoflen,
- EVP_PKEY *key, unsigned char *sigin, int siglen,
- const char *sig_name, const char *md_name,
- const char *file)
- {
- size_t len = BUFSIZE;
- int i, backslash = 0, ret = EXIT_FAILURE;
- unsigned char *allocated_buf = NULL;
- while (BIO_pending(bp) || !BIO_eof(bp)) {
- i = BIO_read(bp, (char *)buf, BUFSIZE);
- if (i < 0) {
- BIO_printf(bio_err, "Read error in %s\n", file);
- goto end;
- }
- if (i == 0)
- break;
- }
- if (sigin != NULL) {
- EVP_MD_CTX *ctx;
- BIO_get_md_ctx(bp, &ctx);
- i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen);
- if (i > 0) {
- BIO_printf(out, "Verified OK\n");
- } else if (i == 0) {
- BIO_printf(out, "Verification failure\n");
- goto end;
- } else {
- BIO_printf(bio_err, "Error verifying data\n");
- goto end;
- }
- ret = EXIT_SUCCESS;
- goto end;
- }
- if (key != NULL) {
- EVP_MD_CTX *ctx;
- size_t tmplen;
- BIO_get_md_ctx(bp, &ctx);
- if (!EVP_DigestSignFinal(ctx, NULL, &tmplen)) {
- BIO_printf(bio_err, "Error getting maximum length of signed data\n");
- goto end;
- }
- if (tmplen > BUFSIZE) {
- len = tmplen;
- allocated_buf = app_malloc(len, "Signature buffer");
- buf = allocated_buf;
- }
- if (!EVP_DigestSignFinal(ctx, buf, &len)) {
- BIO_printf(bio_err, "Error signing data\n");
- goto end;
- }
- } else if (xoflen > 0) {
- EVP_MD_CTX *ctx;
- len = xoflen;
- if (len > BUFSIZE) {
- allocated_buf = app_malloc(len, "Digest buffer");
- buf = allocated_buf;
- }
- BIO_get_md_ctx(bp, &ctx);
- if (!EVP_DigestFinalXOF(ctx, buf, len)) {
- BIO_printf(bio_err, "Error Digesting Data\n");
- goto end;
- }
- } else {
- len = BIO_gets(bp, (char *)buf, BUFSIZE);
- if ((int)len < 0)
- goto end;
- }
- if (binout) {
- BIO_write(out, buf, len);
- } else if (sep == 2) {
- file = newline_escape_filename(file, &backslash);
- if (backslash == 1)
- BIO_puts(out, "\\");
- for (i = 0; i < (int)len; i++)
- BIO_printf(out, "%02x", buf[i]);
- BIO_printf(out, " *%s\n", file);
- OPENSSL_free((char *)file);
- } else {
- if (sig_name != NULL) {
- BIO_puts(out, sig_name);
- if (md_name != NULL)
- BIO_printf(out, "-%s", md_name);
- BIO_printf(out, "(%s)= ", file);
- } else if (md_name != NULL) {
- BIO_printf(out, "%s(%s)= ", md_name, file);
- } else {
- BIO_printf(out, "(%s)= ", file);
- }
- for (i = 0; i < (int)len; i++) {
- if (sep && (i != 0))
- BIO_printf(out, ":");
- BIO_printf(out, "%02x", buf[i]);
- }
- BIO_printf(out, "\n");
- }
- ret = EXIT_SUCCESS;
- end:
- if (allocated_buf != NULL)
- OPENSSL_clear_free(allocated_buf, len);
- return ret;
- }
|