minhtrannhat/os161
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Added sha256 hash function and hmac functions (with and without salt) to the kernel

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and userspace.

In userspace, this is accessed through #include <secure.h>
In the kernel, this is access through #include <kern/secure.h>

There is a unit test for this (hm1) that computes the hmac and compares it to
the known value.  The salted vesion tested offline.

-----

Also, fixed usespace compile issue with not changing KERNEL_SECRET => SECRET.
This commit is contained in:
Scott Haseley
2016-02-01 01:35:53 -05:00
parent dc49fc79a4
commit a97b1c80b2
13 changed files with 3449 additions and 4 deletions
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8
common/libc/printf/tprintf.c
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@@ -16,7 +16,7 @@ tprintf(const char *fmt, ...)
int chars;
va_list ap;
if (strcmp(KERNEL_SECRET, "") != 0) {
if (SECRET != 0) {
return 0;
}
@@ -34,7 +34,7 @@ nprintf(const char *fmt, ...)
int chars;
va_list ap;
if (strcmp(KERNEL_SECRET, "") == 0) {
if (SECRET == 0) {
return 0;
}
@@ -52,8 +52,8 @@ printsf(const char *fmt, ...)
int chars;
va_list ap;
if (strcmp(KERNEL_SECRET, "") != 0) {
printf("%s: ", KERNEL_SECRET);
if (SECRET != 0) {
printf("%llu: ", (unsigned long long)SECRET);
}
va_start(ap, fmt);
chars = vprintf(fmt, ap);