bcrypt-based key derivation function support, from OpenBSD libutil

1 files changed, 12 insertions, 0 deletions

diff --git a/bcrypt/pybc_blf.h b/bcrypt/pybc_blf.h
index 55ac12c..e18f7b6 100644
--- a/bcrypt/pybc_blf.h
+++ b/bcrypt/pybc_blf.h
@@ -38,6 +38,13 @@
 typedef unsigned __int8		u_int8_t;
 typedef unsigned __int16	u_int16_t;
 typedef unsigned __int32	u_int32_t;
+typedef unsigned __int64	u_int64_t;
+#elif __STDC_VERSION__ >= 199901L /* C99 or later */
+include <stdint.h>
+typedef uint8_t u_int8_t;
+typedef uint16_t u_int16_t;
+typedef uint32_t u_int32_t;
+typedef uint64_t u_int64_t;
 #endif
 
 /* Schneier specifies a maximum key length of 56 bytes.
@@ -74,4 +81,9 @@ void pybc_blf_enc(pybc_blf_ctx *, u_int32_t *, u_int16_t);
 /* Converts u_int8_t to u_int32_t */
 u_int32_t pybc_Blowfish_stream2word(const u_int8_t *, u_int16_t, u_int16_t *);
 
+/* KDF interface */
+int bcrypt_pbkdf(const char *pass, size_t passlen,
+    const u_int8_t *salt, size_t saltlen,
+    u_int8_t *key, size_t keylen, unsigned int rounds);
+
 #endif