1 files changed, 61 insertions, 0 deletions

diff --git a/toxencryptsave/crypto_pwhash_scryptsalsa208sha256/crypto_hash_sha256.h b/toxencryptsave/crypto_pwhash_scryptsalsa208sha256/crypto_hash_sha256.h
new file mode 100644
index 00000000..cc6e3df1
--- /dev/null
+++ b/toxencryptsave/crypto_pwhash_scryptsalsa208sha256/crypto_hash_sha256.h
@@ -0,0 +1,61 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#ifdef  VANILLA_NACL /* toxcore only uses this when libsodium is unavailable */
+
+#ifndef crypto_hash_sha256_H
+#define crypto_hash_sha256_H
+
+/*
+ * WARNING: Unless you absolutely need to use SHA256 for interoperatibility,
+ * purposes, you might want to consider crypto_generichash() instead.
+ * Unlike SHA256, crypto_generichash() is not vulnerable to length
+ * extension attacks.
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "export.h"
+
+#ifdef __cplusplus
+# if __GNUC__
+#  pragma GCC diagnostic ignored "-Wlong-long"
+# endif
+extern "C" {
+#endif
+
+typedef struct crypto_hash_sha256_state {
+    uint32_t      state[8];
+    uint32_t      count[2];
+    unsigned char buf[64];
+} crypto_hash_sha256_state;
+
+#define crypto_hash_sha256_BYTES 32U
+SODIUM_EXPORT
+size_t crypto_hash_sha256_bytes(void);
+
+SODIUM_EXPORT
+int crypto_hash_sha256(unsigned char *out, const unsigned char *in,
+                       unsigned long long inlen);
+
+SODIUM_EXPORT
+int crypto_hash_sha256_init(crypto_hash_sha256_state *state);
+
+SODIUM_EXPORT
+int crypto_hash_sha256_update(crypto_hash_sha256_state *state,
+                              const unsigned char *in,
+                              unsigned long long inlen);
+
+SODIUM_EXPORT
+int crypto_hash_sha256_final(crypto_hash_sha256_state *state,
+                             unsigned char *out);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif