Move PBKDF2 into crypto backend wrapper.

[platform/upstream/cryptsetup.git] / lib / crypto_backend / crypto_backend.h

diff --git a/lib/crypto_backend/crypto_backend.h b/lib/crypto_backend/crypto_backend.h
index c7f30cb..2ca53d0 100644 (file)
--- a/lib/crypto_backend/crypto_backend.h
+++ b/lib/crypto_backend/crypto_backend.h
@@ -20,6 +20,7 @@
 #define _CRYPTO_BACKEND_H
 
 #include <stdint.h>
+#include <string.h>
 #include "config.h"
 
 struct crypt_device;
@@ -52,4 +53,19 @@ int crypt_hmac_destroy(struct crypt_hmac *ctx);
 enum { CRYPT_RND_NORMAL = 0, CRYPT_RND_KEY = 1, CRYPT_RND_SALT = 2 };
 int crypt_backend_rng(char *buffer, size_t length, int quality, int fips);
 
+/* PBKDF*/
+int crypt_pbkdf_check(const char *kdf, const char *hash, uint64_t *iter_secs);
+int crypt_pbkdf(const char *kdf, const char *hash,
+               const char *password, size_t password_length,
+               const char *salt, size_t salt_length,
+               char *key, size_t key_length,
+               unsigned int iterations);
+
+/* internal PBKDF2 implementation */
+int pkcs5_pbkdf2(const char *hash,
+                const char *P, size_t Plen,
+                const char *S, size_t Slen,
+                unsigned int c,
+                unsigned int dkLen,char *DK);
+
 #endif /* _CRYPTO_BACKEND_H */