darlinghq/darling-corecrypto
1
0
Fork 0
mirror of https://github.com/darlinghq/darling-corecrypto.git synced 2024-11-23 12:19:44 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Implement cc_print and ccdigest_oid_lookup

Browse Source
This commit is contained in:
Ariel Abreu 2020-03-17 10:01:44 -04:00
parent b9e454d7dc
commit a06928b4bf
No known key found for this signature in database
GPG Key ID: 6EA25D8348CAA137
3 changed files with 59 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
include/corecrypto/cc_debug.h
View File

@ -65,6 +65,17 @@ extern int printf(const char *format, ...) __printflike(1,2);
#include <corecrypto/cc.h>
/* Print a byte array of arbitrary size */
void cc_print(const char *label, size_t count, const uint8_t *s);
CC_INLINE
void cc_print(const char* label, size_t count, const uint8_t* array) {
printf("%s:", label);
for (size_t i = 0; i < count; ++i)
printf(" %02x", array[i]);
};
CC_INLINE
void cc_println(const char* label, size_t count, const uint8_t* array) {
cc_print(label, count, array);
putchar('\n');
};
#endif /* _CORECRYPTO_CCN_DEBUG_H_ */

17
include/corecrypto/ccdigest_priv.h
View File

@ -30,7 +30,20 @@ bool ccdigest_oid_equal(const struct ccdigest_info *di, ccoid_t oid) {
typedef const struct ccdigest_info *(ccdigest_lookup)(ccoid_t oid);
#include <stdarg.h>
const struct ccdigest_info *ccdigest_oid_lookup(ccoid_t oid, ...);
//#include <stdarg.h>
// NOTE(@facekapow):
// i'm not sure entirely sure what Apple was going for with the varargs,
// especially since there was no documentation in the header
//
// my initial assumption was that it was used to try multiple possible OIDs
// and return the digest info for the first one that was found. (un?)fortunately,
// there's no indication of how to determine the length of the varargs
// (NULL could be used as the last element)
//
// therefore, i'm just going to remove the varargs. besides, it's in a private header
// which means that only our own implementation should use it, so we can modify it
// however we want
const struct ccdigest_info *ccdigest_oid_lookup(ccoid_t oid /*, ...*/);
#endif /* _CORECRYPTO_CCDIGEST_PRIV_H_ */

32
src/ccdigest.c
View File

@ -18,9 +18,17 @@
*/
#include <corecrypto/ccdigest.h>
#include <corecrypto/ccdigest_priv.h>
#include <string.h>
#include <libkern/OSByteOrder.h>
#include <corecrypto/ccmd2.h>
#include <corecrypto/ccmd4.h>
#include <corecrypto/ccmd5.h>
#include <corecrypto/ccsha1.h>
#include <corecrypto/ccsha2.h>
#include <corecrypto/ccripemd.h>
#ifdef __LITTLE_ENDIAN__
static uint64_t swap64le(uint64_t v) { return v; }
#define swap64be _OSSwapInt64
@ -201,3 +209,27 @@ int ccdigest_test_chunk_vector(const struct ccdigest_info* di, const struct ccdi
return ccdigest_test_chunk(di, v->len, v->message, v->digest, chunk);
}
const struct ccdigest_info* ccdigest_oid_lookup(ccoid_t oid)
{
#define CC_OID_DI_PTR(x) &cc ## x ## _di
#define CC_OID_DI_FUNC(x) cc ## x ## _di()
#define CC_OID_CMP(x) if (ccdigest_oid_equal(x, oid)) { return x; }
#define CC_OID_CMP_PTR(x) CC_OID_CMP(CC_OID_DI_PTR(x))
#define CC_OID_CMP_FUNC(x) CC_OID_CMP(CC_OID_DI_FUNC(x))
CC_OID_CMP_PTR(md2);
CC_OID_CMP_PTR(md4);
CC_OID_CMP_FUNC(md5);
CC_OID_CMP_FUNC(sha1);
CC_OID_CMP_FUNC(sha224);
CC_OID_CMP_FUNC(sha256);
CC_OID_CMP_FUNC(sha384);
CC_OID_CMP_FUNC(sha512);
CC_OID_CMP_PTR(rmd128);
CC_OID_CMP_PTR(rmd160);
CC_OID_CMP_PTR(rmd256);
CC_OID_CMP_PTR(rmd320);
return NULL;
};