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der fixes and additions

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This commit is contained in:
Christopher Brown 2013-01-24 11:14:05 -08:00 committed by Steffen Jaeckel
parent 7050bdb7c8
commit 2cb8c44113
10 changed files with 551 additions and 13 deletions
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158
libtomcrypt_VS2005.vcproj
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@ -2910,6 +2910,28 @@
/>
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RelativePath="src\misc\pk_get_oid.c"
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Name="Debug|Win32"
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RelativePath="src\misc\zeromem.c"
>
@ -4731,6 +4753,28 @@
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RelativePath="src\pk\asn1\der\bit\der_decode_raw_bit_string.c"
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RelativePath="src\pk\asn1\der\bit\der_encode_bit_string.c"
>
@ -4753,6 +4797,28 @@
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<File
RelativePath="src\pk\asn1\der\bit\der_length_bit_string.c"
>
@ -5290,6 +5356,28 @@
PreprocessorDefinitions=""
/>
</FileConfiguration>
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<File
RelativePath="src\pk\asn1\der\sequence\der_decode_subject_public_key_info.c"
>
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RelativePath="src\pk\asn1\der\sequence\der_encode_sequence_ex.c"
@ -5335,6 +5423,28 @@
/>
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<File
RelativePath="src\pk\asn1\der\sequence\der_encode_subject_public_key_info.c"
>
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Name="Debug|Win32"
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<File
RelativePath="src\pk\asn1\der\sequence\der_length_sequence.c"
>
@ -5498,6 +5608,54 @@
</FileConfiguration>
</File>
</Filter>
<Filter
Name="teletex_string"
>
<File
RelativePath="src\pk\asn1\der\teletex_string\der_decode_teletex_string.c"
>
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<Filter
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34
libtomcrypt_VS2008.vcproj
View File

@ -1,7 +1,7 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="9,00"
Version="9.00"
Name="libtomcrypt"
ProjectGUID="{E3802982-DCB6-4D85-A2BD-6B08F0657E79}"
RootNamespace="libtomcrypt"
@ -2920,6 +2920,10 @@
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RelativePath=".\src\misc\pk_get_oid.c"
>
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RelativePath="src\misc\zeromem.c"
>
@ -4741,6 +4745,10 @@
/>
</FileConfiguration>
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<File
RelativePath=".\src\pk\asn1\der\bit\der_decode_raw_bit_string.c"
>
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<File
RelativePath="src\pk\asn1\der\bit\der_encode_bit_string.c"
>
@ -4763,6 +4771,10 @@
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RelativePath=".\src\pk\asn1\der\bit\der_encode_raw_bit_string.c"
>
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<File
RelativePath="src\pk\asn1\der\bit\der_length_bit_string.c"
>
@ -5301,6 +5313,10 @@
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<File
RelativePath=".\src\pk\asn1\der\sequence\der_decode_subject_public_key_info.c"
>
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<File
RelativePath="src\pk\asn1\der\sequence\der_encode_sequence_ex.c"
>
@ -5345,6 +5361,10 @@
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RelativePath=".\src\pk\asn1\der\sequence\der_encode_subject_public_key_info.c"
>
</File>
<File
RelativePath="src\pk\asn1\der\sequence\der_length_sequence.c"
>
@ -5648,6 +5668,18 @@
</FileConfiguration>
</File>
</Filter>
<Filter
Name="teletex_string"
>
<File
RelativePath=".\src\pk\asn1\der\teletex_string\der_decode_teletex_string.c"
>
</File>
<File
RelativePath=".\src\pk\asn1\der\teletex_string\der_length_teletex_string.c"
>
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<Filter

12
src/headers/tomcrypt_pk.h
View File

@ -444,6 +444,8 @@ enum {
LTC_ASN1_SET,
LTC_ASN1_SETOF,
LTC_ASN1_RAW_BIT_STRING,
LTC_ASN1_TELETEX_STRING,
LTC_ASN1_CONSTRUCTED,
};
/** A LTC ASN.1 list type */
@ -563,7 +565,15 @@ int der_length_ia5_string(const unsigned char *octets, unsigned long noctets, un
int der_ia5_char_encode(int c);
int der_ia5_value_decode(int v);
/* Printable STRING */
/* TELETEX STRING */
int der_decode_teletex_string(const unsigned char *in, unsigned long inlen,
unsigned char *out, unsigned long *outlen);
int der_length_teletex_string(const unsigned char *octets, unsigned long noctets, unsigned long *outlen);
int der_teletex_char_encode(int c);
int der_teletex_value_decode(int v);
/* PRINTABLE STRING */
int der_encode_printable_string(const unsigned char *in, unsigned long inlen,
unsigned char *out, unsigned long *outlen);
int der_decode_printable_string(const unsigned char *in, unsigned long inlen,

8
src/misc/pk_get_oid.c
View File

@ -10,13 +10,13 @@
#include "tomcrypt.h"
static const oid_st rsa_oid = {
.OIDlen = 7,
.OID = { 1, 2, 840, 113549, 1, 1, 1 },
{ 1, 2, 840, 113549, 1, 1, 1 },
7,
};
static const oid_st dsa_oid = {
.OIDlen = 6,
.OID = { 1, 2, 840, 10040, 4, 1 },
{ 1, 2, 840, 10040, 4, 1 },
6,
};
/*

2
src/pk/asn1/der/boolean/der_decode_boolean.c
View File

@ -31,7 +31,7 @@ int der_decode_boolean(const unsigned char *in, unsigned long inlen,
LTC_ARGCHK(in != NULL);
LTC_ARGCHK(out != NULL);
if (inlen != 3 || in[0] != 0x01 || in[1] != 0x01 || (in[2] != 0x00 && in[2] != 0xFF)) {
if (inlen < 3 || in[0] != 0x01 || in[1] != 0x01 || (in[2] != 0x00 && in[2] != 0xFF)) {
return CRYPT_INVALID_ARG;
}

40
src/pk/asn1/der/sequence/der_decode_sequence_flexi.c
View File

@ -65,6 +65,7 @@ int der_decode_sequence_flexi(const unsigned char *in, unsigned long *inlen, ltc
ltc_asn1_list *l;
unsigned long err, type, len, totlen, x, y;
void *realloc_tmp;
int isConstructed;
LTC_ARGCHK(in != NULL);
LTC_ARGCHK(inlen != NULL);
@ -102,7 +103,14 @@ int der_decode_sequence_flexi(const unsigned char *in, unsigned long *inlen, ltc
l = l->next;
}
/* now switch on type */
if ((isConstructed = ((type & 0xE0) == 0xA0 ? 1 : 0))) {
/* constructed, use the 'used' field to store the original tag number */
l->used = (type & 0x1F);
/* treat constructed elements like SETs */
type = 0x31;
}
/* now switch on type */
switch (type) {
case 0x01: /* BOOLEAN */
l->type = LTC_ASN1_BOOLEAN;
@ -259,6 +267,26 @@ int der_decode_sequence_flexi(const unsigned char *in, unsigned long *inlen, ltc
}
break;
case 0x14: /* TELETEXT */
/* init field */
l->type = LTC_ASN1_TELETEX_STRING;
l->size = len;
if ((l->data = XCALLOC(1, l->size)) == NULL) {
err = CRYPT_MEM;
goto error;
}
if ((err = der_decode_teletex_string(in, *inlen, l->data, &l->size)) != CRYPT_OK) {
goto error;
}
if ((err = der_length_teletex_string(l->data, l->size, &len)) != CRYPT_OK) {
goto error;
}
break;
case 0x16: /* IA5 */
/* init field */
@ -304,7 +332,7 @@ int der_decode_sequence_flexi(const unsigned char *in, unsigned long *inlen, ltc
case 0x31: /* SET */
/* init field */
l->type = (type == 0x30) ? LTC_ASN1_SEQUENCE : LTC_ASN1_SET;
l->type = (isConstructed ? LTC_ASN1_CONSTRUCTED : ((type == 0x30) ? LTC_ASN1_SEQUENCE : LTC_ASN1_SET));
/* we have to decode the SEQUENCE header and get it's length */
@ -343,9 +371,11 @@ int der_decode_sequence_flexi(const unsigned char *in, unsigned long *inlen, ltc
default:
/* invalid byte ... this is a soft error */
/* remove link */
l = l->prev;
XFREE(l->next);
l->next = NULL;
if (l->prev) {
l = l->prev;
XFREE(l->next);
l->next = NULL;
}
goto outside;
}

3
src/pk/asn1/der/sequence/der_decode_subject_public_key_info.c
View File

@ -36,7 +36,8 @@ int der_decode_subject_public_key_info(const unsigned char *in, unsigned long in
unsigned int algorithm, void* public_key, unsigned long* public_key_len,
unsigned long parameters_type, ltc_asn1_list* parameters, unsigned long parameters_len)
{
int err, len;
int err;
unsigned long len;
oid_st oid;
unsigned char *tmpbuf;
unsigned long tmpoid[16];

2
src/pk/asn1/der/sequence/der_sequence_free.c
View File

@ -24,6 +24,8 @@
void der_sequence_free(ltc_asn1_list *in)
{
ltc_asn1_list *l;
if (!in) return;
/* walk to the start of the chain */
while (in->prev != NULL || in->parent != NULL) {

95
src/pk/asn1/der/teletex_string/der_decode_teletex_string.c Normal file
View File

@ -0,0 +1,95 @@
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#include "tomcrypt.h"
/**
@file der_decode_teletex_string.c
ASN.1 DER, encode a teletex STRING
*/
#ifdef LTC_DER
/**
Store a teletex STRING
@param in The DER encoded teletex STRING
@param inlen The size of the DER teletex STRING
@param out [out] The array of octets stored (one per char)
@param outlen [in/out] The number of octets stored
@return CRYPT_OK if successful
*/
int der_decode_teletex_string(const unsigned char *in, unsigned long inlen,
unsigned char *out, unsigned long *outlen)
{
unsigned long x, y, len;
int t;
LTC_ARGCHK(in != NULL);
LTC_ARGCHK(out != NULL);
LTC_ARGCHK(outlen != NULL);
/* must have header at least */
if (inlen < 2) {
return CRYPT_INVALID_PACKET;
}
/* check for 0x13 */
if ((in[0] & 0x1F) != 0x14) {
return CRYPT_INVALID_PACKET;
}
x = 1;
/* decode the length */
if (in[x] & 0x80) {
/* valid # of bytes in length are 1,2,3 */
y = in[x] & 0x7F;
if ((y == 0) || (y > 3) || ((x + y) > inlen)) {
return CRYPT_INVALID_PACKET;
}
/* read the length in */
len = 0;
++x;
while (y--) {
len = (len << 8) | in[x++];
}
} else {
len = in[x++] & 0x7F;
}
/* is it too long? */
if (len > *outlen) {
*outlen = len;
return CRYPT_BUFFER_OVERFLOW;
}
if (len + x > inlen) {
return CRYPT_INVALID_PACKET;
}
/* read the data */
for (y = 0; y < len; y++) {
t = der_teletex_value_decode(in[x++]);
if (t == -1) {
return CRYPT_INVALID_ARG;
}
out[y] = t;
}
*outlen = y;
return CRYPT_OK;
}
#endif
/* $Source$ */
/* $Revision$ */
/* $Date$ */

210
src/pk/asn1/der/teletex_string/der_length_teletex_string.c Normal file
View File

@ -0,0 +1,210 @@
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#include "tomcrypt.h"
/**
@file der_length_teletex_string.c
ASN.1 DER, get length of teletex STRING
*/
#ifdef LTC_DER
static const struct {
int code, value;
} teletex_table[] = {
{ '\0', 0 },
{ '\a', 7 },
{ '\b', 8 },
{ '\t', 9 },
{ '\n', 10 },
{ '\v', 11 },
{ '\f', 12 },
{ '\r', 13 },
{ ' ', 32 },
{ '!', 33 },
{ '"', 34 },
{ '%', 37 },
{ '&', 38 },
{ '\'', 39 },
{ '(', 40 },
{ ')', 41 },
{ '+', 43 },
{ ',', 44 },
{ '-', 45 },
{ '.', 46 },
{ '/', 47 },
{ '0', 48 },
{ '1', 49 },
{ '2', 50 },
{ '3', 51 },
{ '4', 52 },
{ '5', 53 },
{ '6', 54 },
{ '7', 55 },
{ '8', 56 },
{ '9', 57 },
{ ':', 58 },
{ ';', 59 },
{ '<', 60 },
{ '=', 61 },
{ '>', 62 },
{ '?', 63 },
{ '@', 64 },
{ 'A', 65 },
{ 'B', 66 },
{ 'C', 67 },
{ 'D', 68 },
{ 'E', 69 },
{ 'F', 70 },
{ 'G', 71 },
{ 'H', 72 },
{ 'I', 73 },
{ 'J', 74 },
{ 'K', 75 },
{ 'L', 76 },
{ 'M', 77 },
{ 'N', 78 },
{ 'O', 79 },
{ 'P', 80 },
{ 'Q', 81 },
{ 'R', 82 },
{ 'S', 83 },
{ 'T', 84 },
{ 'U', 85 },
{ 'V', 86 },
{ 'W', 87 },
{ 'X', 88 },
{ 'Y', 89 },
{ 'Z', 90 },
{ '[', 91 },
{ ']', 93 },
{ '_', 95 },
{ 'a', 97 },
{ 'b', 98 },
{ 'c', 99 },
{ 'd', 100 },
{ 'e', 101 },
{ 'f', 102 },
{ 'g', 103 },
{ 'h', 104 },
{ 'i', 105 },
{ 'j', 106 },
{ 'k', 107 },
{ 'l', 108 },
{ 'm', 109 },
{ 'n', 110 },
{ 'o', 111 },
{ 'p', 112 },
{ 'q', 113 },
{ 'r', 114 },
{ 's', 115 },
{ 't', 116 },
{ 'u', 117 },
{ 'v', 118 },
{ 'w', 119 },
{ 'x', 120 },
{ 'y', 121 },
{ 'z', 122 },
{ '|', 124 },
{ ' ', 160 },
{ 0xa1, 161 },
{ 0xa2, 162 },
{ 0xa3, 163 },
{ '$', 164 },
{ 0xa5, 165 },
{ '#', 166 },
{ 0xa7, 167 },
{ 0xa4, 168 },
{ 0xab, 171 },
{ 0xb0, 176 },
{ 0xb1, 177 },
{ 0xb2, 178 },
{ 0xb3, 179 },
{ 0xd7, 180 },
{ 0xb5, 181 },
{ 0xb6, 182 },
{ 0xb7, 183 },
{ 0xf7, 184 },
{ 0xbb, 187 },
{ 0xbc, 188 },
{ 0xbd, 189 },
{ 0xbe, 190 },
{ 0xbf, 191 },
};
int der_teletex_char_encode(int c)
{
int x;
for (x = 0; x < (int)(sizeof(teletex_table)/sizeof(teletex_table[0])); x++) {
if (teletex_table[x].code == c) {
return teletex_table[x].value;
}
}
return -1;
}
int der_teletex_value_decode(int v)
{
int x;
for (x = 0; x < (int)(sizeof(teletex_table)/sizeof(teletex_table[0])); x++) {
if (teletex_table[x].value == v) {
return teletex_table[x].code;
}
}
return -1;
}
/**
Gets length of DER encoding of teletex STRING
@param octets The values you want to encode
@param noctets The number of octets in the string to encode
@param outlen [out] The length of the DER encoding for the given string
@return CRYPT_OK if successful
*/
int der_length_teletex_string(const unsigned char *octets, unsigned long noctets, unsigned long *outlen)
{
unsigned long x;
LTC_ARGCHK(outlen != NULL);
LTC_ARGCHK(octets != NULL);
/* scan string for validity */
for (x = 0; x < noctets; x++) {
if (der_teletex_char_encode(octets[x]) == -1) {
return CRYPT_INVALID_ARG;
}
}
if (noctets < 128) {
/* 16 LL DD DD DD ... */
*outlen = 2 + noctets;
} else if (noctets < 256) {
/* 16 81 LL DD DD DD ... */
*outlen = 3 + noctets;
} else if (noctets < 65536UL) {
/* 16 82 LL LL DD DD DD ... */
*outlen = 4 + noctets;
} else if (noctets < 16777216UL) {
/* 16 83 LL LL LL DD DD DD ... */
*outlen = 5 + noctets;
} else {
return CRYPT_INVALID_ARG;
}
return CRYPT_OK;
}
#endif
/* $Source$ */
/* $Revision$ */
/* $Date$ */