=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/ssh-keygen.c,v retrieving revision 1.56 retrieving revision 1.66 diff -u -r1.56 -r1.66 --- src/usr.bin/ssh/ssh-keygen.c 2001/04/15 16:58:03 1.56 +++ src/usr.bin/ssh/ssh-keygen.c 2001/06/26 02:47:07 1.66 @@ -12,11 +12,15 @@ */ #include "includes.h" -RCSID("$OpenBSD: ssh-keygen.c,v 1.56 2001/04/15 16:58:03 markus Exp $"); +RCSID("$OpenBSD: ssh-keygen.c,v 1.66 2001/06/26 02:47:07 markus Exp $"); #include #include +#ifdef SMARTCARD +#include +#endif + #include "xmalloc.h" #include "key.h" #include "rsa.h" @@ -28,6 +32,7 @@ #include "log.h" #include "readpass.h" + /* Number of bits in the RSA/DSA key. This value can be changed on the command line. */ int bits = 1024; @@ -75,7 +80,7 @@ char hostname[MAXHOSTNAMELEN]; -void +static void ask_filename(struct passwd *pw, const char *prompt) { char buf[1024]; @@ -108,15 +113,19 @@ have_identity = 1; } -Key * -try_load_pem_key(char *filename) +static Key * +load_identity(char *filename) { char *pass; Key *prv; prv = key_load_private(filename, "", NULL); if (prv == NULL) { - pass = read_passphrase("Enter passphrase: ", 1); + if (identity_passphrase) + pass = xstrdup(identity_passphrase); + else + pass = read_passphrase("Enter passphrase: ", + RP_ALLOW_STDIN); prv = key_load_private(filename, pass, NULL); memset(pass, 0, strlen(pass)); xfree(pass); @@ -129,10 +138,10 @@ #define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb -void +static void do_convert_to_ssh2(struct passwd *pw) { - Key *prv; + Key *k; int len; u_char *blob; struct stat st; @@ -143,25 +152,26 @@ perror(identity_file); exit(1); } - prv = try_load_pem_key(identity_file); - if (prv == NULL) { - fprintf(stderr, "load failed\n"); - exit(1); + if ((k = key_load_public(identity_file, NULL)) == NULL) { + if ((k = load_identity(identity_file)) == NULL) { + fprintf(stderr, "load failed\n"); + exit(1); + } } - key_to_blob(prv, &blob, &len); + key_to_blob(k, &blob, &len); fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); fprintf(stdout, "Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n", - key_size(prv), key_type(prv), + key_size(k), key_type(k), pw->pw_name, hostname); dump_base64(stdout, blob, len); fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); - key_free(prv); + key_free(k); xfree(blob); exit(0); } -void +static void buffer_get_bignum_bits(Buffer *b, BIGNUM *value) { int bits = buffer_get_int(b); @@ -174,13 +184,16 @@ buffer_consume(b, bytes); } -Key * +static Key * do_convert_private_ssh2_from_blob(char *blob, int blen) { Buffer b; Key *key = NULL; - int ignore, magic, rlen, ktype; char *type, *cipher; + u_char *sig, data[10] = "abcde12345"; + int magic, rlen, ktype, i1, i2, i3, i4; + u_int slen; + u_long e; buffer_init(&b); buffer_append(&b, blob, blen); @@ -191,13 +204,13 @@ buffer_free(&b); return NULL; } - ignore = buffer_get_int(&b); + i1 = buffer_get_int(&b); type = buffer_get_string(&b, NULL); cipher = buffer_get_string(&b, NULL); - ignore = buffer_get_int(&b); - ignore = buffer_get_int(&b); - ignore = buffer_get_int(&b); - + i2 = buffer_get_int(&b); + i3 = buffer_get_int(&b); + i4 = buffer_get_int(&b); + debug("ignore (%d %d %d %d)", i1,i2,i3,i4); if (strcmp(cipher, "none") != 0) { error("unsupported cipher %s", cipher); xfree(cipher); @@ -227,7 +240,17 @@ buffer_get_bignum_bits(&b, key->dsa->priv_key); break; case KEY_RSA: - if (!BN_set_word(key->rsa->e, (u_long) buffer_get_char(&b))) { + e = buffer_get_char(&b); + debug("e %lx", e); + if (e < 30) { + e <<= 8; + e += buffer_get_char(&b); + debug("e %lx", e); + e <<= 8; + e += buffer_get_char(&b); + debug("e %lx", e); + } + if (!BN_set_word(key->rsa->e, e)) { buffer_free(&b); key_free(key); return NULL; @@ -245,20 +268,15 @@ error("do_convert_private_ssh2_from_blob: " "remaining bytes in key blob %d", rlen); buffer_free(&b); -#ifdef DEBUG_PK - { - u_int slen; - u_char *sig, data[10] = "abcde12345"; - key_sign(key, &sig, &slen, data, sizeof data); - key_verify(key, sig, slen, data, sizeof data); - xfree(sig); - } -#endif + /* try the key */ + key_sign(key, &sig, &slen, data, sizeof(data)); + key_verify(key, sig, slen, data, sizeof(data)); + xfree(sig); return key; } -void +static void do_convert_from_ssh2(struct passwd *pw) { Key *k; @@ -293,12 +311,15 @@ strstr(line, ": ") != NULL) { if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL) private = 1; - fprintf(stderr, "ignore: %s", line); + if (strstr(line, " END ") != NULL) { + break; + } + /* fprintf(stderr, "ignore: %s", line); */ continue; } if (escaped) { escaped--; - fprintf(stderr, "escaped: %s", line); + /* fprintf(stderr, "escaped: %s", line); */ continue; } *p = '\0'; @@ -331,7 +352,7 @@ exit(0); } -void +static void do_print_public(struct passwd *pw) { Key *prv; @@ -343,7 +364,7 @@ perror(identity_file); exit(1); } - prv = try_load_pem_key(identity_file); + prv = load_identity(identity_file); if (prv == NULL) { fprintf(stderr, "load failed\n"); exit(1); @@ -355,7 +376,93 @@ exit(0); } -void +#define NUM_RSA_KEY_ELEMENTS 5+1 +#define COPY_RSA_KEY(x, i) \ + do { \ + len = BN_num_bytes(prv->rsa->x); \ + elements[i] = xmalloc(len); \ +error("#bytes %d", len); \ + if (BN_bn2bin(prv->rsa->x, elements[i]) < 0) \ + goto done; \ + } while(0) + +static void +do_upload(struct passwd *pw, int reader) +{ +#ifndef SMARTCARD + fatal("no support for smartcards."); +#else + Key *prv = NULL; + struct stat st; + u_char *elements[NUM_RSA_KEY_ELEMENTS]; + u_char key_fid[2]; + u_char atr[256]; + u_char AUT0[] = {0xad, 0x9f, 0x61, 0xfe, 0xfa, 0x20, 0xce, 0x63}; + int len, status = 1, i, fd = -1, ret; + int cla = 0x00; + + if (!have_identity) + ask_filename(pw, "Enter file in which the key is"); + if (stat(identity_file, &st) < 0) { + perror(identity_file); + goto done; + } + prv = load_identity(identity_file); + if (prv == NULL) { + error("load failed"); + goto done; + } +{ + prv->type = KEY_RSA; + key_write(prv, stderr); +} + for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) + elements[i] = NULL; + COPY_RSA_KEY(q, 0); + COPY_RSA_KEY(p, 1); + COPY_RSA_KEY(iqmp, 2); + COPY_RSA_KEY(dmq1, 3); + COPY_RSA_KEY(dmp1, 4); + COPY_RSA_KEY(n, 5); + len = BN_num_bytes(prv->rsa->n); + fd = scopen(reader, 0, NULL); + if (fd < 0) { + error("scopen failed %d.", fd); + goto done; + } + ret = screset(fd, atr, NULL); + if (ret <= 0) { + error("screset failed."); + goto done; + } + if (cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(AUT0)) < 0) { + error("cyberflex_verify_AUT0 failed"); + goto done; + } + key_fid[0] = 0x00; + key_fid[1] = 0x12; + if (cyberflex_load_rsa_priv(fd, cla, key_fid, 5, 8*len, elements) < 0) + goto done; + log("cyberflex_load_rsa_priv done"); + key_fid[0] = 0x73; + key_fid[1] = 0x68; + if (cyberflex_load_rsa_pub(fd, cla, key_fid, len, elements[5]) < 0) + goto done; + log("cyberflex_load_rsa_pub done"); + status = 0; + log("loading key done"); +done: + if (prv) + key_free(prv); + for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) + xfree(elements[i]); + if (fd != -1) + scclose(fd); + exit(status); +#endif +} + +static void do_fingerprint(struct passwd *pw) { FILE *f; @@ -452,7 +559,7 @@ * Perform changing a passphrase. The argument is the passwd structure * for the current user. */ -void +static void do_change_passphrase(struct passwd *pw) { char *comment; @@ -472,8 +579,11 @@ if (identity_passphrase) old_passphrase = xstrdup(identity_passphrase); else - old_passphrase = read_passphrase("Enter old passphrase: ", 1); - private = key_load_private(identity_file, old_passphrase , &comment); + old_passphrase = + read_passphrase("Enter old passphrase: ", + RP_ALLOW_STDIN); + private = key_load_private(identity_file, old_passphrase, + &comment); memset(old_passphrase, 0, strlen(old_passphrase)); xfree(old_passphrase); if (private == NULL) { @@ -489,8 +599,10 @@ passphrase2 = NULL; } else { passphrase1 = - read_passphrase("Enter new passphrase (empty for no passphrase): ", 1); - passphrase2 = read_passphrase("Enter same passphrase again: ", 1); + read_passphrase("Enter new passphrase (empty for no " + "passphrase): ", RP_ALLOW_STDIN); + passphrase2 = read_passphrase("Enter same passphrase again: ", + RP_ALLOW_STDIN); /* Verify that they are the same. */ if (strcmp(passphrase1, passphrase2) != 0) { @@ -528,7 +640,7 @@ /* * Change the comment of a private key file. */ -void +static void do_change_comment(struct passwd *pw) { char new_comment[1024], *comment, *passphrase; @@ -551,7 +663,8 @@ else if (identity_new_passphrase) passphrase = xstrdup(identity_new_passphrase); else - passphrase = read_passphrase("Enter passphrase: ", 1); + passphrase = read_passphrase("Enter passphrase: ", + RP_ALLOW_STDIN); /* Try to load using the passphrase. */ private = key_load_private(identity_file, passphrase, &comment); if (private == NULL) { @@ -621,10 +734,10 @@ exit(0); } -void +static void usage(void) { - printf("Usage: %s [-lBpqxXyc] [-t type] [-b bits] [-f file] [-C comment] " + printf("Usage: %s [-ceilpqyB] [-t type] [-b bits] [-f file] [-C comment] " "[-N new-pass] [-P pass]\n", __progname); exit(1); } @@ -638,7 +751,7 @@ char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2; Key *private, *public; struct passwd *pw; - int opt, type, fd; + int opt, type, fd, reader = -1; struct stat st; FILE *f; @@ -658,7 +771,7 @@ exit(1); } - while ((opt = getopt(ac, av, "dqpclBRxXyb:f:t:P:N:C:")) != -1) { + while ((opt = getopt(ac, av, "deiqpclBRxXyb:f:t:u:P:N:C:")) != -1) { switch (opt) { case 'b': bits = atoi(optarg); @@ -667,69 +780,60 @@ exit(1); } break; - case 'l': print_fingerprint = 1; break; - case 'B': print_bubblebabble = 1; break; - case 'p': change_passphrase = 1; break; - case 'c': change_comment = 1; break; - case 'f': strlcpy(identity_file, optarg, sizeof(identity_file)); have_identity = 1; break; - case 'P': identity_passphrase = optarg; break; - case 'N': identity_new_passphrase = optarg; break; - case 'C': identity_comment = optarg; break; - case 'q': quiet = 1; break; - case 'R': /* unused */ exit(0); break; - + case 'e': case 'x': + /* export key */ convert_to_ssh2 = 1; break; - + case 'i': case 'X': + /* import key */ convert_from_ssh2 = 1; break; - case 'y': print_public = 1; break; - case 'd': key_type_name = "dsa"; break; - case 't': key_type_name = optarg; break; - + case 'u': + reader = atoi(optarg); /*XXX*/ + break; case '?': default: usage(); @@ -755,6 +859,8 @@ do_convert_from_ssh2(pw); if (print_public) do_print_public(pw); + if (reader != -1) + do_upload(pw, reader); arc4random_stir(); @@ -803,10 +909,15 @@ else { passphrase_again: passphrase1 = - read_passphrase("Enter passphrase (empty for no passphrase): ", 1); - passphrase2 = read_passphrase("Enter same passphrase again: ", 1); + read_passphrase("Enter passphrase (empty for no " + "passphrase): ", RP_ALLOW_STDIN); + passphrase2 = read_passphrase("Enter same passphrase again: ", + RP_ALLOW_STDIN); if (strcmp(passphrase1, passphrase2) != 0) { - /* The passphrases do not match. Clear them and retry. */ + /* + * The passphrases do not match. Clear them and + * retry. + */ memset(passphrase1, 0, strlen(passphrase1)); memset(passphrase2, 0, strlen(passphrase2)); xfree(passphrase1);