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- grunk@cvs.openbsd.org 2008/06/12 05:42:46 

[key.c]
     supply the key type (rsa1, rsa, dsa) as a caption in the frame of the
     random art.  while there, stress the fact that the field base should at
     least be 8 characters for the pictures to make sense.
     comment and ok djm@
This commit is contained in:
Darren Tucker 2008-06-13 04:54:40 +10:00
parent ba69c7a987
commit 987ac84a17
1 changed files with 16 additions and 8 deletions
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24
key.c
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@ -1,4 +1,4 @@
/* $OpenBSD: key.c,v 1.73 2008/06/12 00:13:13 otto Exp $ */ /* $OpenBSD: key.c,v 1.74 2008/06/12 05:42:46 grunk Exp $ */
/* /*
* read_bignum(): * read_bignum():
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -319,10 +319,18 @@ key_fingerprint_bubblebabble(u_char *dgst_raw, u_int dgst_raw_len)
* Graphs are not unambiguous, because circles in graphs can be * Graphs are not unambiguous, because circles in graphs can be
* walked in either direction. * walked in either direction.
*/ */
#define FLDSIZE_Y (8 + 1)
#define FLDSIZE_X (8 * 2 + 1) /*
* Field sizes for the random art. Have to be odd, so the starting point
* can be in the exact middle of the picture, and FLDBASE should be >=8 .
* Else pictures would be too dense, and drawing the frame would
* fail, too, because the key type would not fit in anymore.
*/
#define FLDBASE 8
#define FLDSIZE_Y (FLDBASE + 1)
#define FLDSIZE_X (FLDBASE * 2 + 1)
static char * static char *
key_fingerprint_randomart(u_char *dgst_raw, u_int dgst_raw_len) key_fingerprint_randomart(u_char *dgst_raw, u_int dgst_raw_len, const Key *k)
{ {
/* /*
* Chars to be used after each other every time the worm * Chars to be used after each other every time the worm
@ -366,11 +374,11 @@ key_fingerprint_randomart(u_char *dgst_raw, u_int dgst_raw_len)
field[FLDSIZE_X / 2][FLDSIZE_Y / 2] = len; field[FLDSIZE_X / 2][FLDSIZE_Y / 2] = len;
/* fill in retval */ /* fill in retval */
p = retval; snprintf(retval, 10, "+--[%4s]", key_type(k));
p = strchr(retval, '\0');
/* output upper border */ /* output upper border */
*p++ = '+'; for (i = 0; i < FLDSIZE_X - 8; i++)
for (i = 0; i < FLDSIZE_X; i++)
*p++ = '-'; *p++ = '-';
*p++ = '+'; *p++ = '+';
*p++ = '\n'; *p++ = '\n';
@ -411,7 +419,7 @@ key_fingerprint(const Key *k, enum fp_type dgst_type, enum fp_rep dgst_rep)
retval = key_fingerprint_bubblebabble(dgst_raw, dgst_raw_len); retval = key_fingerprint_bubblebabble(dgst_raw, dgst_raw_len);
break; break;
case SSH_FP_RANDOMART: case SSH_FP_RANDOMART:
retval = key_fingerprint_randomart(dgst_raw, dgst_raw_len); retval = key_fingerprint_randomart(dgst_raw, dgst_raw_len, k);
break; break;
default: default:
fatal("key_fingerprint_ex: bad digest representation %d", fatal("key_fingerprint_ex: bad digest representation %d",