1 files changed, 57 insertions, 0 deletions
diff --git a/src/include/sha1.h b/src/include/sha1.h
new file mode 100644
index 0000000..86c3d9f
--- /dev/null
+++ b/src/include/sha1.h
@@ -0,0 +1,57 @@
+#ifndef _FR_SHA1_H
+#define _FR_SHA1_H
+
+#ifdef WITH_OPENSSL_SHA1
+#include <openssl/sha.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef SHA1_DIGEST_LENGTH
+#  define SHA1_DIGEST_LENGTH 20
+#endif
+
+#ifndef WITH_OPENSSL_SHA1
+typedef struct {
+    uint32_t state[5];
+    uint32_t count[2];
+    uint8_t buffer[64];
+} fr_sha1_ctx;
+
+void fr_sha1_transform(uint32_t state[5], uint8_t const buffer[64]);
+void fr_sha1_init(fr_sha1_ctx *context);
+void fr_sha1_update(fr_sha1_ctx *context, uint8_t const *data, size_t len);
+void fr_sha1_final(uint8_t digest[20], fr_sha1_ctx *context);
+
+/*
+ * this version implements a raw SHA1 transform, no length is appended,
+ * nor any 128s out to the block size.
+ */
+void fr_sha1_final_no_len(uint8_t digest[20], fr_sha1_ctx* context);
+
+#else  /* WITH_OPENSSL_SHA1 */
+USES_APPLE_DEPRECATED_API
+#define fr_sha1_ctx	SHA_CTX
+#define fr_sha1_init	SHA1_Init
+#define fr_sha1_update	SHA1_Update
+#define fr_sha1_final	SHA1_Final
+#define fr_sha1_transform SHA1_Transform
+#endif
+
+/*
+ * FIPS 186-2 PRF based upon SHA1.
+ */
+void fips186_2prf(uint8_t mk[20], uint8_t finalkey[160]);
+
+/* hmacsha1.c */
+
+void fr_hmac_sha1(uint8_t digest[SHA1_DIGEST_LENGTH], uint8_t const *text, size_t text_len,
+		  uint8_t const *key, size_t key_len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FR_SHA1_H */