--- /dev/null
+/* 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 */
+ {"LTC_DER", 1},
+ _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),
+ _C_STRINGIFY(LTC_DER_MAX_RECURSION),
+#else
+ {"LTC_DER", 0},
+#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 *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++) {
+ number_len = snprintf(NULL, 0, "%s,%d\n", _crypt_constants[i].name, _crypt_constants[i].value);
+ if (number_len < 0)
+ return -1;
+ total_len += number_len;
+ }
+
+ 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++) {
+ number_len = snprintf(ptr, total_len, "%s,%d\n", _crypt_constants[i].name, _crypt_constants[i].value);
+ if (number_len < 0) return -1;
+ if ((unsigned int)number_len > total_len) return -1;
+ total_len -= number_len;
+ ptr += number_len;
+ }
+ /* 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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