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RSA: Add OID definitions and helper function for hash algorithms

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Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-05-19 23:21:07 +03:00
parent ab6d047405
commit d3811845f3
2 changed files with 34 additions and 3 deletions
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31
src/tls/asn1.c
View file

@ -1,6 +1,6 @@
/*
* ASN.1 DER parsing
* Copyright (c) 2006, Jouni Malinen <j@w1.fi>
* Copyright (c) 2006-2014, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
@ -11,6 +11,17 @@
#include "common.h"
#include "asn1.h"
struct asn1_oid asn1_sha1_oid = {
.oid = { 1, 3, 14, 3, 2, 26 },
.len = 6
};
struct asn1_oid asn1_sha256_oid = {
.oid = { 2, 16, 840, 1, 101, 3, 4, 2, 1 },
.len = 9
};
int asn1_get_next(const u8 *buf, size_t len, struct asn1_hdr *hdr)
{
const u8 *pos, *end;
@ -140,7 +151,7 @@ int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
}
void asn1_oid_to_str(struct asn1_oid *oid, char *buf, size_t len)
void asn1_oid_to_str(const struct asn1_oid *oid, char *buf, size_t len)
{
char *pos = buf;
size_t i;
@ -204,3 +215,19 @@ unsigned long asn1_bit_string_to_long(const u8 *buf, size_t len)
return val;
}
int asn1_oid_equal(const struct asn1_oid *a, const struct asn1_oid *b)
{
size_t i;
if (a->len != b->len)
return 0;
for (i = 0; i < a->len; i++) {
if (a->oid[i] != b->oid[i])
return 0;
}
return 1;
}

6
src/tls/asn1.h
View file

@ -60,7 +60,11 @@ int asn1_get_next(const u8 *buf, size_t len, struct asn1_hdr *hdr);
int asn1_parse_oid(const u8 *buf, size_t len, struct asn1_oid *oid);
int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
const u8 **next);
void asn1_oid_to_str(struct asn1_oid *oid, char *buf, size_t len);
void asn1_oid_to_str(const struct asn1_oid *oid, char *buf, size_t len);
unsigned long asn1_bit_string_to_long(const u8 *buf, size_t len);
int asn1_oid_equal(const struct asn1_oid *a, const struct asn1_oid *b);
extern struct asn1_oid asn1_sha1_oid;
extern struct asn1_oid asn1_sha256_oid;
#endif /* ASN1_H */