1 files changed, 31 insertions, 0 deletions
diff --git a/src/include/sha1.h b/src/include/sha1.h
new file mode 100644
index 0000000..43d141d
--- /dev/null
+++ b/src/include/sha1.h
@@ -0,0 +1,31 @@
+#ifndef SHA1_H
+#define SHA1_H
+
+/*
+   SHA-1 in C
+   By Steve Reid <steve@edmweb.com>
+   100% Public Domain
+
+   adopted for s/qmail (feh)
+ */
+
+#include <stdint.h>
+/* SHA1 implementation */
+
+#define SHA1_BLOCKSIZE  64
+#define SHA1_DIGESTSIZE 20
+
+typedef struct
+{
+  uint32_t state[5];
+  uint32_t count[2];
+  uint8_t buffer[SHA1_BLOCKSIZE];
+} sha1_ctx;
+
+void sha1_init(sha1_ctx *context);
+void sha1_update(sha1_ctx *context, const uint8_t *data, uint32_t len);
+void sha1_final(uint8_t hash[SHA1_DIGESTSIZE], sha1_ctx *context);
+void sha1_transform(uint32_t state[5], const uint8_t buffer[SHA1_BLOCKSIZE]);
+void sha1_hash(char *hash, const char *data, uint32_t len);
+
+#endif /* SHA1_H */