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comparison libtomcrypt/src/pk/asn1/der/utf8/der_encode_utf8_string.c @ 1437:871b18fd7065 fuzz

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merge from main (libtommath/libtomcrypt/curve25510-donna updates)
author Matt Johnston <matt@ucc.asn.au>
date Sat, 24 Jun 2017 22:51:45 +0800
parents f849a5ca2efc
children 6dba84798cd5
comparison
equal deleted inserted replaced
1432:41dca1e5ea34 1437:871b18fd7065
4 * algorithms in a highly modular and flexible manner. 4 * algorithms in a highly modular and flexible manner.
5 * 5 *
6 * The library is free for all purposes without any express 6 * The library is free for all purposes without any express
7 * guarantee it works. 7 * guarantee it works.
8 * 8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.com 9 * Tom St Denis, [email protected], http://libtom.org
10 */ 10 */
11 #include "tomcrypt.h" 11 #include "tomcrypt.h"
12 12
13 /** 13 /**
14 @file der_encode_utf8_string.c 14 @file der_encode_utf8_string.c
63 63
64 /* encode the header+len */ 64 /* encode the header+len */
65 x = 0; 65 x = 0;
66 out[x++] = 0x0C; 66 out[x++] = 0x0C;
67 if (len < 128) { 67 if (len < 128) {
68 out[x++] = len; 68 out[x++] = (unsigned char)len;
69 } else if (len < 256) { 69 } else if (len < 256) {
70 out[x++] = 0x81; 70 out[x++] = 0x81;
71 out[x++] = len; 71 out[x++] = (unsigned char)len;
72 } else if (len < 65536UL) { 72 } else if (len < 65536UL) {
73 out[x++] = 0x82; 73 out[x++] = 0x82;
74 out[x++] = (len>>8)&255; 74 out[x++] = (unsigned char)((len>>8)&255);
75 out[x++] = len&255; 75 out[x++] = (unsigned char)(len&255);
76 } else if (len < 16777216UL) { 76 } else if (len < 16777216UL) {
77 out[x++] = 0x83; 77 out[x++] = 0x83;
78 out[x++] = (len>>16)&255; 78 out[x++] = (unsigned char)((len>>16)&255);
79 out[x++] = (len>>8)&255; 79 out[x++] = (unsigned char)((len>>8)&255);
80 out[x++] = len&255; 80 out[x++] = (unsigned char)(len&255);
81 } else { 81 } else {
82 return CRYPT_INVALID_ARG; 82 return CRYPT_INVALID_ARG;
83 } 83 }
84 84
85 /* store UTF8 */ 85 /* store UTF8 */
86 for (y = 0; y < inlen; y++) { 86 for (y = 0; y < inlen; y++) {
87 switch (der_utf8_charsize(in[y])) { 87 switch (der_utf8_charsize(in[y])) {
88 case 1: out[x++] = in[y]; break; 88 case 1: out[x++] = (unsigned char)in[y]; break;
89 case 2: out[x++] = 0xC0 | ((in[y] >> 6) & 0x1F); out[x++] = 0x80 | (in[y] & 0x3F); break; 89 case 2: out[x++] = 0xC0 | ((in[y] >> 6) & 0x1F); out[x++] = 0x80 | (in[y] & 0x3F); break;
90 case 3: out[x++] = 0xE0 | ((in[y] >> 12) & 0x0F); out[x++] = 0x80 | ((in[y] >> 6) & 0x3F); out[x++] = 0x80 | (in[y] & 0x3F); break; 90 case 3: out[x++] = 0xE0 | ((in[y] >> 12) & 0x0F); out[x++] = 0x80 | ((in[y] >> 6) & 0x3F); out[x++] = 0x80 | (in[y] & 0x3F); break;
91 case 4: out[x++] = 0xF0 | ((in[y] >> 18) & 0x07); out[x++] = 0x80 | ((in[y] >> 12) & 0x3F); out[x++] = 0x80 | ((in[y] >> 6) & 0x3F); out[x++] = 0x80 | (in[y] & 0x3F); break; 91 case 4: out[x++] = 0xF0 | ((in[y] >> 18) & 0x07); out[x++] = 0x80 | ((in[y] >> 12) & 0x3F); out[x++] = 0x80 | ((in[y] >> 6) & 0x3F); out[x++] = 0x80 | (in[y] & 0x3F); break;
92 } 92 }
93 } 93 }
98 return CRYPT_OK; 98 return CRYPT_OK;
99 } 99 }
100 100
101 #endif 101 #endif
102 102
103 /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/utf8/der_encode_utf8_string.c,v $ */ 103 /* $Source$ */
104 /* $Revision: 1.7 $ */ 104 /* $Revision$ */
105 /* $Date: 2006/12/16 17:41:21 $ */ 105 /* $Date$ */