crypto: add pbkdf2 hmac key generator

this will allow to generate a KEY + IV based on a password and salt for AES
encryption/decryption as example

or simply the key for hmac or rsa from text password

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/crypto/pbkdf2.h b/include/crypto/pbkdf2.h
new file mode 100644
index 0000000000..fa66675261
--- /dev/null
+++ b/include/crypto/pbkdf2.h
@@ -0,0 +1,23 @@
+/*
+ * (C) Copyright 2015 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Under GPLv2 Only
+ */
+
+#ifndef __PBKDF2_H__
+#define __PBKDF2_H__
+
+#include <digest.h>
+
+int pkcs5_pbkdf2_hmac_sha1(const unsigned char *pwd, size_t pwd_len,
+			   const unsigned char *salt, size_t salt_len,
+			   uint32_t iteration,
+			   uint32_t key_len, unsigned char *buf);
+
+int pkcs5_pbkdf2_hmac(struct digest* d,
+		      const unsigned char *pwd, size_t pwd_len,
+		      const unsigned char *salt, size_t salt_len,
+		      uint32_t iteration,
+		      uint32_t key_len, unsigned char *key);
+
+#endif /* __PBKDF2_H__ */