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/* 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.
*/
#include "tomcrypt.h"
/**
@file crypt_constants.c
Make various constants available to dynamic languages
like Python - Larry Bugbee, February 2013
LB - Dec 2013 - revised to include compiler define options
LB - Mar 2014 - added endianness and word size
*/
typedef struct {
const char *name;
const int value;
} crypt_constant;
#define _C_STRINGIFY(s) { #s, s }
static const crypt_constant _crypt_constants[] = {
_C_STRINGIFY(CRYPT_OK),
_C_STRINGIFY(CRYPT_ERROR),
_C_STRINGIFY(CRYPT_NOP),
_C_STRINGIFY(CRYPT_INVALID_KEYSIZE),
_C_STRINGIFY(CRYPT_INVALID_ROUNDS),
_C_STRINGIFY(CRYPT_FAIL_TESTVECTOR),
_C_STRINGIFY(CRYPT_BUFFER_OVERFLOW),
_C_STRINGIFY(CRYPT_INVALID_PACKET),
_C_STRINGIFY(CRYPT_INVALID_PRNGSIZE),
_C_STRINGIFY(CRYPT_ERROR_READPRNG),
_C_STRINGIFY(CRYPT_INVALID_CIPHER),
_C_STRINGIFY(CRYPT_INVALID_HASH),
_C_STRINGIFY(CRYPT_INVALID_PRNG),
_C_STRINGIFY(CRYPT_MEM),
_C_STRINGIFY(CRYPT_PK_TYPE_MISMATCH),
_C_STRINGIFY(CRYPT_PK_NOT_PRIVATE),
_C_STRINGIFY(CRYPT_INVALID_ARG),
_C_STRINGIFY(CRYPT_FILE_NOTFOUND),
_C_STRINGIFY(CRYPT_PK_INVALID_TYPE),
_C_STRINGIFY(CRYPT_OVERFLOW),
_C_STRINGIFY(CRYPT_UNUSED1),
_C_STRINGIFY(CRYPT_INPUT_TOO_LONG),
_C_STRINGIFY(CRYPT_PK_INVALID_SIZE),
_C_STRINGIFY(CRYPT_INVALID_PRIME_SIZE),
_C_STRINGIFY(CRYPT_PK_INVALID_PADDING),
_C_STRINGIFY(CRYPT_HASH_OVERFLOW),
_C_STRINGIFY(PK_PUBLIC),
_C_STRINGIFY(PK_PRIVATE),
_C_STRINGIFY(LTC_ENCRYPT),
_C_STRINGIFY(LTC_DECRYPT),
#ifdef LTC_PKCS_1
{"LTC_PKCS_1", 1},
/* Block types */
_C_STRINGIFY(LTC_PKCS_1_EMSA),
_C_STRINGIFY(LTC_PKCS_1_EME),
/* Padding types */
_C_STRINGIFY(LTC_PKCS_1_V1_5),
_C_STRINGIFY(LTC_PKCS_1_OAEP),
_C_STRINGIFY(LTC_PKCS_1_PSS),
_C_STRINGIFY(LTC_PKCS_1_V1_5_NA1),
#else
{"LTC_PKCS_1", 0},
#endif
#ifdef LTC_MRSA
{"LTC_MRSA", 1},
#else
{"LTC_MRSA", 0},
#endif
#ifdef LTC_MKAT
{"LTC_MKAT", 1},
_C_STRINGIFY(MIN_KAT_SIZE),
_C_STRINGIFY(MAX_KAT_SIZE),
#else
{"LTC_MKAT", 0},
#endif
#ifdef LTC_MECC
{"LTC_MECC", 1},
_C_STRINGIFY(ECC_BUF_SIZE),
_C_STRINGIFY(ECC_MAXSIZE),
#else
{"LTC_MECC", 0},
#endif
#ifdef LTC_MDSA
{"LTC_MDSA", 1},
_C_STRINGIFY(LTC_MDSA_DELTA),
_C_STRINGIFY(LTC_MDSA_MAX_GROUP),
#else
{"LTC_MDSA", 0},
#endif
#ifdef LTC_MILLER_RABIN_REPS
_C_STRINGIFY(LTC_MILLER_RABIN_REPS),
#endif
#ifdef LTC_DER
/* DER handling */
_C_STRINGIFY(LTC_ASN1_EOL),
_C_STRINGIFY(LTC_ASN1_BOOLEAN),
_C_STRINGIFY(LTC_ASN1_INTEGER),
_C_STRINGIFY(LTC_ASN1_SHORT_INTEGER),
_C_STRINGIFY(LTC_ASN1_BIT_STRING),
_C_STRINGIFY(LTC_ASN1_OCTET_STRING),
_C_STRINGIFY(LTC_ASN1_NULL),
_C_STRINGIFY(LTC_ASN1_OBJECT_IDENTIFIER),
_C_STRINGIFY(LTC_ASN1_IA5_STRING),
_C_STRINGIFY(LTC_ASN1_PRINTABLE_STRING),
_C_STRINGIFY(LTC_ASN1_UTF8_STRING),
_C_STRINGIFY(LTC_ASN1_UTCTIME),
_C_STRINGIFY(LTC_ASN1_CHOICE),
_C_STRINGIFY(LTC_ASN1_SEQUENCE),
_C_STRINGIFY(LTC_ASN1_SET),
_C_STRINGIFY(LTC_ASN1_SETOF),
_C_STRINGIFY(LTC_ASN1_RAW_BIT_STRING),
_C_STRINGIFY(LTC_ASN1_TELETEX_STRING),
_C_STRINGIFY(LTC_ASN1_CONSTRUCTED),
_C_STRINGIFY(LTC_ASN1_CONTEXT_SPECIFIC),
_C_STRINGIFY(LTC_ASN1_GENERALIZEDTIME),
#endif
#ifdef LTC_CTR_MODE
{"LTC_CTR_MODE", 1},
_C_STRINGIFY(CTR_COUNTER_LITTLE_ENDIAN),
_C_STRINGIFY(CTR_COUNTER_BIG_ENDIAN),
_C_STRINGIFY(LTC_CTR_RFC3686),
#else
{"LTC_CTR_MODE", 0},
#endif
#ifdef LTC_GCM_MODE
_C_STRINGIFY(LTC_GCM_MODE_IV),
_C_STRINGIFY(LTC_GCM_MODE_AAD),
_C_STRINGIFY(LTC_GCM_MODE_TEXT),
#endif
_C_STRINGIFY(LTC_MP_LT),
_C_STRINGIFY(LTC_MP_EQ),
_C_STRINGIFY(LTC_MP_GT),
_C_STRINGIFY(LTC_MP_NO),
_C_STRINGIFY(LTC_MP_YES),
_C_STRINGIFY(MAXBLOCKSIZE),
_C_STRINGIFY(TAB_SIZE),
_C_STRINGIFY(ARGTYPE),
#ifdef LTM_DESC
{"LTM_DESC", 1},
#else
{"LTM_DESC", 0},
#endif
#ifdef TFM_DESC
{"TFM_DESC", 1},
#else
{"TFM_DESC", 0},
#endif
#ifdef GMP_DESC
{"GMP_DESC", 1},
#else
{"GMP_DESC", 0},
#endif
#ifdef LTC_FAST
{"LTC_FAST", 1},
#else
{"LTC_FAST", 0},
#endif
#ifdef LTC_NO_FILE
{"LTC_NO_FILE", 1},
#else
{"LTC_NO_FILE", 0},
#endif
#ifdef ENDIAN_LITTLE
{"ENDIAN_LITTLE", 1},
#else
{"ENDIAN_LITTLE", 0},
#endif
#ifdef ENDIAN_BIG
{"ENDIAN_BIG", 1},
#else
{"ENDIAN_BIG", 0},
#endif
#ifdef ENDIAN_32BITWORD
{"ENDIAN_32BITWORD", 1},
#else
{"ENDIAN_32BITWORD", 0},
#endif
#ifdef ENDIAN_64BITWORD
{"ENDIAN_64BITWORD", 1},
#else
{"ENDIAN_64BITWORD", 0},
#endif
#ifdef ENDIAN_NEUTRAL
{"ENDIAN_NEUTRAL", 1},
#else
{"ENDIAN_NEUTRAL", 0},
#endif
};
/* crypt_get_constant()
* valueout will be the value of the named constant
* return -1 if named item not found
*/
int crypt_get_constant(const char* namein, int *valueout) {
int i;
int _crypt_constants_len = sizeof(_crypt_constants) / sizeof(_crypt_constants[0]);
for (i=0; i<_crypt_constants_len; i++) {
if (XSTRCMP(_crypt_constants[i].name, namein) == 0) {
*valueout = _crypt_constants[i].value;
return 0;
}
}
return 1;
}
/* crypt_list_all_constants()
* if names_list is NULL, names_list_size will be the minimum
* number of bytes needed to receive the complete names_list
* if names_list is NOT NULL, names_list must be the addr of
* sufficient memory allocated into which the names_list
* is to be written. Also, the value in names_list_size
* sets the upper bound of the number of characters to be
* written.
* a -1 return value signifies insufficient space made available
*/
int crypt_list_all_constants(char *names_list, unsigned int *names_list_size) {
int i;
unsigned int total_len = 0;
char number[32], *ptr;
int number_len;
int count = sizeof(_crypt_constants) / sizeof(_crypt_constants[0]);
/* calculate amount of memory required for the list */
for (i=0; i<count; i++) {
total_len += (unsigned int)strlen(_crypt_constants[i].name) + 1;
/* the above +1 is for the commas */
number_len = snprintf(number, sizeof(number), "%d", _crypt_constants[i].value);
if ((number_len < 0) ||
((unsigned int)number_len >= sizeof(number)))
return -1;
total_len += number_len + 1;
/* this last +1 is for newlines (and ending NULL) */
}
if (names_list == NULL) {
*names_list_size = total_len;
} else {
if (total_len > *names_list_size) {
return -1;
}
/* build the names list */
ptr = names_list;
for (i=0; i<count; i++) {
strcpy(ptr, _crypt_constants[i].name);
ptr += strlen(_crypt_constants[i].name);
strcpy(ptr, ",");
ptr += 1;
number_len = snprintf(number, sizeof(number), "%d", _crypt_constants[i].value);
strcpy(ptr, number);
ptr += number_len;
strcpy(ptr, "\n");
ptr += 1;
}
/* to remove the trailing new-line */
ptr -= 1;
*ptr = 0;
}
return 0;
}
/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */
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