small ASN.1 changes extracted from ECC stuff
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4bc1489584
@ -559,6 +559,8 @@ int der_decode_sequence_ex(const unsigned char *in, unsigned long inlen,
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int der_length_sequence(ltc_asn1_list *list, unsigned long inlen,
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unsigned long *outlen);
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int der_length_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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unsigned long *outlen, unsigned long *payloadlen);
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#ifdef LTC_SOURCE
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@ -98,6 +98,7 @@ int der_decode_sequence_ex(const unsigned char *in, unsigned long inlen,
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case LTC_ASN1_BOOLEAN:
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z = inlen;
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if ((err = der_decode_boolean(in + x, z, ((int *)data))) != CRYPT_OK) {
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if (!ordered) { continue; }
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goto LBL_ERR;
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}
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if ((err = der_length_boolean(&z)) != CRYPT_OK) {
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@ -38,135 +38,8 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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LTC_ARGCHK(outlen != NULL);
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/* get size of output that will be required */
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y = 0;
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for (i = 0; i < inlen; i++) {
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type = list[i].type;
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size = list[i].size;
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data = list[i].data;
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if (type == LTC_ASN1_EOL) {
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break;
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}
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switch (type) {
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case LTC_ASN1_BOOLEAN:
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if ((err = der_length_boolean(&x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_INTEGER:
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if ((err = der_length_integer(data, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_SHORT_INTEGER:
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if ((err = der_length_short_integer(*((unsigned long*)data), &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_BIT_STRING:
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case LTC_ASN1_RAW_BIT_STRING:
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if ((err = der_length_bit_string(size, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_OCTET_STRING:
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if ((err = der_length_octet_string(size, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_NULL:
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y += 2;
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break;
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case LTC_ASN1_OBJECT_IDENTIFIER:
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if ((err = der_length_object_identifier(data, size, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_IA5_STRING:
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if ((err = der_length_ia5_string(data, size, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_PRINTABLE_STRING:
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if ((err = der_length_printable_string(data, size, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_UTF8_STRING:
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if ((err = der_length_utf8_string(data, size, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_UTCTIME:
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if ((err = der_length_utctime(data, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_GENERALIZEDTIME:
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if ((err = der_length_generalizedtime(data, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_SET:
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case LTC_ASN1_SETOF:
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case LTC_ASN1_SEQUENCE:
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if ((err = der_length_sequence(data, size, &x)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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y += x;
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break;
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case LTC_ASN1_CHOICE:
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case LTC_ASN1_CONSTRUCTED:
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case LTC_ASN1_CONTEXT_SPECIFIC:
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case LTC_ASN1_EOL:
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case LTC_ASN1_TELETEX_STRING:
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err = CRYPT_INVALID_ARG;
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goto LBL_ERR;
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}
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}
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/* calc header size */
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z = y;
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if (y < 128) {
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y += 2;
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} else if (y < 256) {
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/* 0x30 0x81 LL */
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y += 3;
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} else if (y < 65536UL) {
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/* 0x30 0x82 LL LL */
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y += 4;
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} else if (y < 16777216UL) {
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/* 0x30 0x83 LL LL LL */
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y += 5;
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} else {
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err = CRYPT_INVALID_ARG;
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goto LBL_ERR;
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}
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y = 0; z = 0;
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if ((err = der_length_sequence_ex(list, inlen, &y, &z)) != CRYPT_OK) return CRYPT_INVALID_ARG;
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/* too big ? */
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if (*outlen < y) {
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@ -212,8 +85,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_boolean(*((int *)data), out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_INTEGER:
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@ -221,8 +92,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_integer(data, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_SHORT_INTEGER:
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@ -230,8 +99,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_short_integer(*((unsigned long*)data), out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_BIT_STRING:
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@ -239,8 +106,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_bit_string(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_RAW_BIT_STRING:
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@ -248,8 +113,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_raw_bit_string(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_OCTET_STRING:
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@ -257,14 +120,12 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_octet_string(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_NULL:
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out[x++] = 0x05;
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out[x++] = 0x00;
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*outlen -= 2;
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out[x] = 0x05;
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out[x+1] = 0x00;
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z = 2;
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break;
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case LTC_ASN1_OBJECT_IDENTIFIER:
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@ -272,8 +133,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_object_identifier(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_IA5_STRING:
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@ -281,8 +140,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_ia5_string(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_PRINTABLE_STRING:
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@ -290,8 +147,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_printable_string(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_UTF8_STRING:
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@ -299,8 +154,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_utf8_string(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_UTCTIME:
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@ -308,8 +161,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_utctime(data, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_GENERALIZEDTIME:
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@ -317,8 +168,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_generalizedtime(data, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_SET:
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@ -326,8 +175,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_set(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_SETOF:
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@ -335,8 +182,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_setof(data, size, out + x, &z)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_SEQUENCE:
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@ -344,8 +189,6 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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if ((err = der_encode_sequence_ex(data, size, out + x, &z, type)) != CRYPT_OK) {
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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break;
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case LTC_ASN1_CHOICE:
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@ -356,6 +199,9 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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err = CRYPT_INVALID_ARG;
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goto LBL_ERR;
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}
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x += z;
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*outlen -= z;
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}
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*outlen = x;
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err = CRYPT_OK;
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@ -24,10 +24,16 @@
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*/
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int der_length_sequence(ltc_asn1_list *list, unsigned long inlen,
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unsigned long *outlen)
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{
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return der_length_sequence_ex(list, inlen, outlen, NULL);
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}
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int der_length_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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unsigned long *outlen, unsigned long *payloadlen)
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{
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int err;
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ltc_asn1_type type;
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unsigned long size, x, y, i;
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unsigned long size, x, y, i, z;
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void *data;
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LTC_ARGCHK(list != NULL);
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@ -154,6 +160,7 @@ int der_length_sequence(ltc_asn1_list *list, unsigned long inlen,
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}
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/* calc header size */
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z = y;
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if (y < 128) {
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y += 2;
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} else if (y < 256) {
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@ -171,6 +178,7 @@ int der_length_sequence(ltc_asn1_list *list, unsigned long inlen,
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}
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/* store size */
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if (payloadlen) *payloadlen = z;
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*outlen = y;
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err = CRYPT_OK;
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