diff options
Diffstat (limited to 'crypto/der_writer.c')
| -rw-r--r-- | crypto/der_writer.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/crypto/der_writer.c b/crypto/der_writer.c index 117b5dff90..8210327f06 100644 --- a/crypto/der_writer.c +++ b/crypto/der_writer.c @@ -66,6 +66,29 @@ int DER_w_boolean(WPACKET *pkt, int tag, int b) && int_end_context(pkt, tag); } +int DER_w_octet_string(WPACKET *pkt, int tag, + const unsigned char *data, size_t data_n) +{ + return int_start_context(pkt, tag) + && WPACKET_start_sub_packet(pkt) + && WPACKET_memcpy(pkt, data, data_n) + && WPACKET_close(pkt) + && WPACKET_put_bytes_u8(pkt, DER_P_OCTET_STRING) + && int_end_context(pkt, tag); +} + +int DER_w_octet_string_uint32(WPACKET *pkt, int tag, uint32_t value) +{ + unsigned char tmp[4] = { 0, 0, 0, 0 }; + unsigned char *pbuf = tmp + (sizeof(tmp) - 1); + + while (value > 0) { + *pbuf-- = (value & 0xFF); + value >>= 8; + } + return DER_w_octet_string(pkt, tag, tmp, sizeof(tmp)); +} + static int int_der_w_integer(WPACKET *pkt, int tag, int (*put_bytes)(WPACKET *pkt, const void *v, unsigned int *top_byte), |