fixed z85 encoding overflow bug, fixed signature code on big-endian systems.

tests/key-bobby-pub

@@ -3,33 +3,33 @@
         Cipher: CURVE25519-ED25519-SALSA20-POLY1305
          Owner: Bobby
           Mail: bobby@local
-        Key-ID: 0xFEC0AFC9E0E38457
-    Public-Key: 0#1e35=WR)p92aZYm/h$byX2/UCCE[rqXzSe/:L.a]?Py
- Creation Time: 2013-11-19T09:54:59
-      Checksum: 1E:3F:73:81:BD:5A:E3:2C:68:2A:7D:FC:47:06:BE:B4
-                52:EC:A8:F3:07:9D:52:4D:0A:4F:CE:18:5A:AA:68:61
- Serial Number: 0xF32F4352
+        Key-ID: 0x1749A29D12CA3FC5
+    Public-Key: 1lmvl2*#Rtt@yvCP&qw$TgU0A083o(!w=8s0]Akff8$$L
+ Creation Time: 2013-11-19T14:56:11
+      Checksum: 29:26:30:F0:37:EF:EC:8D:4C:8E:0A:0D:CD:0D:A1:21
+                51:89:EA:56:F9:54:19:D0:EB:69:F4:7F:8F:2D:E7:E0
+ Serial Number: 0x73C06B1E
    Key Version: 0x00000004
  Random Art ID: +----------------+
-                |      o.o       |
-                |       *        |
-                |      . +       |
-                |       . o .    |
-                |        o o +   |
-                |         o =    |
-                |          . .   |
+                |    . .         |
+                |   * .          |
+                |  = +           |
+                |   o . . o      |
+                |      . = o     |
+                |       o o      |
+                |        .       |
                 |                |
                 +----------------+
 
-0#1e35=WR)p92aZYm/h$byX2/UCCE[rqXzSe/:L.bej(AY9}pIWv4<!2V=KlP9C1r{jJcJg
-&8-IGMQG}4NL8yvTd%87&wSL:C=w[JA0u{U5rBeScCR1n61U%?Q9&gxmkeH-{ag]=IR<3AR
-Qg-&*aqFb4mMOiXGoB<oOg{mU=*:N>P#w/%ei]HbEQ$HCyIcqF&bN*x7<)>ND0FsZUUj^LH
-sum?.7wI)=R>}I1IB)G]1j-S(/Ds$4lYo8%*N8JvmTM@Z]HZh<I/.%=N8fTwo%P!8MwLnkY
-a6xsZ-dM6W5r=Z@0*C)xMY)2ytaTraU20(?iE13Ro0dlsyuj6CzLyZ1TP<qyn@lV4<S}.<C
-JUY78^^hv4A[uD84$ByiJyC}GK)pR>?QPULNUoa[k}O8fvSbZ+C%Dg:v{%fN{]pZsiv-g@:
-.j4zL99S&M}l2jb/]Yk8xk/5X7y@Hj{BjPUq15l[t[B&sh){^4d+^c8XalUGG-SKASh1lm5
-<JH8nyUoGGia7N>H}ziJXTF:-SH[ih.TiqHCj62N&JD5kfgLe8rFsjNFu<Q-3)WYKG*x]hT
-L+7TLS5iwZ}VTRG}QU@sqPz$7Vijo1Kx]yfOl07EYT.L0RZ.ymt#M760v2*$HDa])8El!-l
-?Zb^Y&IE0I<8SJ*[>EKyQhfLDn<RW/Iu7}I>6pVS34SooYD#1xFRX{HwWYF*@ElqhnZ>BzO
-U!#K:((j!Jmme:{mNGg8fHW=Sg=mh(0@@r308!.5v/MGe1OjolqucW%
+1lmvl2*#Rtt@yvCP&qw$TgU0A083o(!w=8s0]Akffmc5iOurCi1Ip/71wZ^})-qyTe}4KGy
+@QWuan[+6[<mn7vTd@2vNG=oSC<E$^=Rr*w-v4$aA}A$6[A*QJ}]rnly*m92jKZqZWm2DLD
+=A{WWaR[+D=>qhs{@*4)9kryQwSUVp:95@hDe#84PLpx8[fUde?qqAvuXJm:nGTbv?r.7K5
+s{V=V&zf/G+6!$r6*]04NGll57E}UjBY}vd+R6{D(llxpmjV5)qAg2reBR$=4ZX)c2q3bG6
+PvKoilCEXzM&vx90sM!k{Smq2dsOiC%7+2.P0JX5c*w0GW<Ku6RJzOz675YVS}88+<yl2k@
+5!YGJwYW+y:xff[Qf7PXiD6uo-mMHAjCaM8Fh*3Cncjh+vSbZ+C%Dg:v{%fN>n1CDR%aF@&
+[>]aU-<cu-O}4WetV4SWc:6#+wlSzV=RWwpI$2p*a^<.VV%PQFrf7Lq%W?5z-mkizt.guKw
+$/Vl-(ilZNvW@y+L?*94bI5lzeqPBvcg@td]f*tt]E}eBXf%Ufi1rO^Q=a(Tjp}epZa+4gk
+Kf*zqRkFCr2qCK]h0<V1f6bdv%aZ^j:$/}NGrWL?fET)$OhvbB)L:/5x({NM>+Qbax29{}H
+th(:gtcA7dRNYZv6ukJzX654kwI{jM4EWg0fcgQw}a?NqwU7NwP/RujCSvP&L5Im#=)nF5!
+8.ZCoaNYZ[h-9JXgc4-Sgdat-mNG3k0@@r308!.(}V3P@1ARv]9SMfu
 ------ END PCP PUBLICKEY ------