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netutils/dropbear: back SHA-256 and HMAC-SHA256 with NuttX crypto

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Swap the libtomcrypt sha256/hmac state for the kernel SHA2/HMAC-SHA256 contexts and provide adapters.

Fix format

Signed-off-by: Felipe Moura <moura.fmo@gmail.com>
This commit is contained in:
Felipe Moura 2026-07-05 14:07:10 -03:00
parent 4d5f60005c
commit 6ca9796d00
6 changed files with 274 additions and 0 deletions
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45
netutils/dropbear/patch/0005-use-nuttx-sha256-hmac.patch Normal file
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@ -0,0 +1,45 @@
--- a/libtomcrypt/src/headers/tomcrypt_hash.h
+++ b/libtomcrypt/src/headers/tomcrypt_hash.h
@@ -30,11 +30,18 @@ struct sha512_state {
#endif
#ifdef LTC_SHA256
+#ifdef DROPBEAR_NUTTX_SHA256
+#include <crypto/sha2.h>
+struct sha256_state {
+ SHA2_CTX ctx;
+};
+#else
struct sha256_state {
ulong64 length;
ulong32 state[8], curlen;
unsigned char buf[64];
};
+#endif
#endif
#ifdef LTC_SHA1
--- a/libtomcrypt/src/headers/tomcrypt_mac.h
+++ b/libtomcrypt/src/headers/tomcrypt_mac.h
@@ -7,6 +7,13 @@
*/
#ifdef LTC_HMAC
+#ifdef DROPBEAR_NUTTX_HMAC_SHA256
+#include <crypto/hmac.h>
+typedef struct Hmac_state {
+ HMAC_SHA256_CTX ctx;
+ int hash;
+} hmac_state;
+#else
typedef struct Hmac_state {
hash_state md;
int hash;
@@ -14,6 +21,7 @@ typedef struct Hmac_state {
unsigned char *key;
} hmac_state;
+#endif
int hmac_init(hmac_state *hmac, int hash, const unsigned char *key, unsigned long keylen);
int hmac_process(hmac_state *hmac, const unsigned char *in, unsigned long inlen);
int hmac_done(hmac_state *hmac, unsigned char *out, unsigned long *outlen);