diff options
Diffstat (limited to 'ssh-keygen.c')
-rw-r--r-- | ssh-keygen.c | 133 |
1 files changed, 56 insertions, 77 deletions
diff --git a/ssh-keygen.c b/ssh-keygen.c index 7d04dd6c..b3074e8d 100644 --- a/ssh-keygen.c +++ b/ssh-keygen.c @@ -12,7 +12,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: ssh-keygen.c,v 1.51 2001/03/21 14:20:45 jakob Exp $"); +RCSID("$OpenBSD: ssh-keygen.c,v 1.52 2001/03/26 08:07:09 markus Exp $"); #include <openssl/evp.h> #include <openssl/pem.h> @@ -111,19 +111,20 @@ ask_filename(struct passwd *pw, const char *prompt) have_identity = 1; } -int -try_load_key(char *filename, Key *k) +Key * +try_load_pem_key(char *filename) { - int success = 1; - if (!load_private_key(filename, "", k, NULL)) { - char *pass = read_passphrase("Enter passphrase: ", 1); - if (!load_private_key(filename, pass, k, NULL)) { - success = 0; - } + char *pass; + Key *prv; + + prv = key_load_private(filename, "", NULL); + if (prv == NULL) { + pass = read_passphrase("Enter passphrase: ", 1); + prv = key_load_private(filename, pass, NULL); memset(pass, 0, strlen(pass)); xfree(pass); } - return success; + return prv; } #define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" @@ -134,7 +135,7 @@ try_load_key(char *filename, Key *k) void do_convert_to_ssh2(struct passwd *pw) { - Key *k; + Key *prv; int len; u_char *blob; struct stat st; @@ -145,20 +146,20 @@ do_convert_to_ssh2(struct passwd *pw) perror(identity_file); exit(1); } - k = key_new(KEY_UNSPEC); - if (!try_load_key(identity_file, k)) { + prv = try_load_pem_key(identity_file); + if (prv == NULL) { fprintf(stderr, "load failed\n"); exit(1); } - key_to_blob(k, &blob, &len); + key_to_blob(prv, &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(k), key_type(k), + key_size(prv), key_type(prv), pw->pw_name, hostname); dump_base64(stdout, blob, len); fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); - key_free(k); + key_free(prv); xfree(blob); exit(0); } @@ -302,7 +303,7 @@ do_convert_from_ssh2(struct passwd *pw) void do_print_public(struct passwd *pw) { - Key *k; + Key *prv; struct stat st; if (!have_identity) @@ -311,14 +312,14 @@ do_print_public(struct passwd *pw) perror(identity_file); exit(1); } - k = key_new(KEY_UNSPEC); - if (!try_load_key(identity_file, k)) { + prv = try_load_pem_key(identity_file); + if (prv == NULL) { fprintf(stderr, "load failed\n"); exit(1); } - if (!key_write(k, stdout)) + if (!key_write(prv, stdout)) fprintf(stderr, "key_write failed"); - key_free(k); + key_free(prv); fprintf(stdout, "\n"); exit(0); } @@ -329,11 +330,11 @@ do_fingerprint(struct passwd *pw) FILE *f; Key *public; char *comment = NULL, *cp, *ep, line[16*1024], *fp; - int i, skip = 0, num = 1, invalid = 1, success = 0, rep, type; + int i, skip = 0, num = 1, invalid = 1, rep, fptype; struct stat st; - type = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; - rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; + fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; + rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; if (!have_identity) ask_filename(pw, "Enter file in which the key is"); @@ -341,26 +342,17 @@ do_fingerprint(struct passwd *pw) perror(identity_file); exit(1); } - public = key_new(KEY_RSA1); - if (load_public_key(identity_file, public, &comment)) { - success = 1; - } else { - key_free(public); - public = key_new(KEY_UNSPEC); - if (try_load_public_key(identity_file, public, &comment)) - success = 1; - else - debug("try_load_public_key KEY_UNSPEC failed"); - } - if (success) { - fp = key_fingerprint(public, type, rep); - printf("%d %s %s\n", key_size(public), - fp, comment); + public = key_load_public(identity_file, &comment); + if (public != NULL) { + fp = key_fingerprint(public, fptype, rep); + printf("%d %s %s\n", key_size(public), fp, comment); key_free(public); xfree(comment); xfree(fp); exit(0); } + if (comment) + xfree(comment); f = fopen(identity_file, "r"); if (f != NULL) { @@ -409,15 +401,15 @@ do_fingerprint(struct passwd *pw) } } comment = *cp ? cp : comment; - fp = key_fingerprint(public, type, rep); + fp = key_fingerprint(public, fptype, rep); printf("%d %s %s\n", key_size(public), fp, comment ? comment : "no comment"); xfree(fp); + key_free(public); invalid = 0; } fclose(f); } - key_free(public); if (invalid) { printf("%s is not a valid key file.\n", identity_file); exit(1); @@ -436,8 +428,6 @@ do_change_passphrase(struct passwd *pw) char *old_passphrase, *passphrase1, *passphrase2; struct stat st; Key *private; - Key *public; - int type = KEY_RSA1; if (!have_identity) ask_filename(pw, "Enter file in which the key is"); @@ -445,28 +435,20 @@ do_change_passphrase(struct passwd *pw) perror(identity_file); exit(1); } - public = key_new(type); - if (!load_public_key(identity_file, public, NULL)) { - type = KEY_UNSPEC; - } else { - /* Clear the public key since we are just about to load the whole file. */ - key_free(public); - } /* Try to load the file with empty passphrase. */ - private = key_new(type); - if (!load_private_key(identity_file, "", private, &comment)) { + private = key_load_private(identity_file, "", &comment); + if (private == NULL) { if (identity_passphrase) old_passphrase = xstrdup(identity_passphrase); else old_passphrase = read_passphrase("Enter old passphrase: ", 1); - if (!load_private_key(identity_file, old_passphrase, private, &comment)) { - memset(old_passphrase, 0, strlen(old_passphrase)); - xfree(old_passphrase); + private = key_load_private(identity_file, old_passphrase , &comment); + memset(old_passphrase, 0, strlen(old_passphrase)); + xfree(old_passphrase); + if (private == NULL) { printf("Bad passphrase.\n"); exit(1); } - memset(old_passphrase, 0, strlen(old_passphrase)); - xfree(old_passphrase); } printf("Key has comment '%s'\n", comment); @@ -494,7 +476,7 @@ do_change_passphrase(struct passwd *pw) } /* Save the file using the new passphrase. */ - if (!save_private_key(identity_file, passphrase1, private, comment)) { + if (!key_save_private(private, identity_file, passphrase1, comment)) { printf("Saving the key failed: %s: %s.\n", identity_file, strerror(errno)); memset(passphrase1, 0, strlen(passphrase1)); @@ -520,7 +502,8 @@ void do_change_comment(struct passwd *pw) { char new_comment[1024], *comment, *passphrase; - Key *private, *public; + Key *private; + Key *public; struct stat st; FILE *f; int fd; @@ -531,21 +514,8 @@ do_change_comment(struct passwd *pw) perror(identity_file); exit(1); } - /* - * Try to load the public key from the file the verify that it is - * readable and of the proper format. - */ - public = key_new(KEY_RSA1); - if (!load_public_key(identity_file, public, NULL)) { - printf("%s is not a valid key file.\n", identity_file); - printf("Comments are only supported in RSA1 keys\n"); - exit(1); - } - - private = key_new(KEY_RSA1); - if (load_private_key(identity_file, "", private, &comment)) - passphrase = xstrdup(""); - else { + private = key_load_private(identity_file, "", &comment); + if (private == NULL) { if (identity_passphrase) passphrase = xstrdup(identity_passphrase); else if (identity_new_passphrase) @@ -553,13 +523,21 @@ do_change_comment(struct passwd *pw) else passphrase = read_passphrase("Enter passphrase: ", 1); /* Try to load using the passphrase. */ - if (!load_private_key(identity_file, passphrase, private, &comment)) { + private = key_load_private(identity_file, passphrase, &comment); + if (private == NULL) { memset(passphrase, 0, strlen(passphrase)); xfree(passphrase); printf("Bad passphrase.\n"); exit(1); } + } else { + passphrase = xstrdup(""); } + if (private->type != KEY_RSA1) { + fprintf(stderr, "Comments are only supported for RSA1 keys.\n"); + key_free(private); + exit(1); + } printf("Key now has comment '%s'\n", comment); if (identity_comment) { @@ -577,7 +555,7 @@ do_change_comment(struct passwd *pw) } /* Save the file using the new passphrase. */ - if (!save_private_key(identity_file, passphrase, private, new_comment)) { + if (!key_save_private(private, identity_file, passphrase, new_comment)) { printf("Saving the key failed: %s: %s.\n", identity_file, strerror(errno)); memset(passphrase, 0, strlen(passphrase)); @@ -588,6 +566,7 @@ do_change_comment(struct passwd *pw) } memset(passphrase, 0, strlen(passphrase)); xfree(passphrase); + public = key_from_private(private); key_free(private); strlcat(identity_file, ".pub", sizeof(identity_file)); @@ -823,7 +802,7 @@ passphrase_again: } /* Save the key with the given passphrase and comment. */ - if (!save_private_key(identity_file, passphrase1, private, comment)) { + if (!key_save_private(private, identity_file, passphrase1, comment)) { printf("Saving the key failed: %s: %s.\n", identity_file, strerror(errno)); memset(passphrase1, 0, strlen(passphrase1)); |