imxtools/sbtools: switch SHA1 implementation to Crypto++

The current implementation was custom and super slow. Since we use Crypto++
anyway, we might as well get use a good implementation.

Change-Id: I761ad7401653471e54000e1c2bc3d9882378112f

1 files changed, 23 insertions, 0 deletions

diff --git a/utils/imxtools/sbtools/crypto.cpp b/utils/imxtools/sbtools/crypto.cpp
index 5ccde27..d7ef04f 100644
--- a/utils/imxtools/sbtools/crypto.cpp
+++ b/utils/imxtools/sbtools/crypto.cpp
@@ -22,6 +22,7 @@
 #include "misc.h"
 #include <cryptopp/modes.h>
 #include <cryptopp/aes.h>
+#include <cryptopp/sha.h>
 
 using namespace CryptoPP;
 
@@ -124,3 +125,25 @@ int crypto_apply(
     else
         return CRYPTO_ERROR_BADSETUP;
 }
+
+void sha_1_init(struct sha_1_params_t *params)
+{
+    params->object = new SHA1;
+}
+
+void sha_1_update(struct sha_1_params_t *params, byte *buffer, int size)
+{
+    reinterpret_cast<SHA1 *>(params->object)->Update(buffer, size);
+}
+
+void sha_1_finish(struct sha_1_params_t *params)
+{
+    SHA1 *obj = reinterpret_cast<SHA1 *>(params->object);
+    obj->Final(params->hash);
+    delete obj;
+}
+
+void sha_1_output(struct sha_1_params_t *params, byte *out)
+{
+    memcpy(out, params->hash, 20);
+}