2 files changed, 43 insertions, 0 deletions

diff --git a/libbb/hash_sha256_block.c b/libbb/hash_sha256_block.c
new file mode 100644
index 000000000..3c4366321
--- /dev/null
+++ b/libbb/hash_sha256_block.c
@@ -0,0 +1,19 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 2025 Denys Vlasenko
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+//kbuild:lib-y += hash_sha256_block.o
+#include "libbb.h"
+
+void FAST_FUNC
+sha256_block(const void *in, size_t len, uint8_t hash[32])
+{
+        sha256_ctx_t ctx;
+        sha256_begin(&ctx);
+        sha256_hash(&ctx, in, len);
+        sha256_end(&ctx, hash);
+}
diff --git a/libbb/pw_encrypt_yes.c b/libbb/pw_encrypt_yes.c
new file mode 100644
index 000000000..50bd06418
--- /dev/null
+++ b/libbb/pw_encrypt_yes.c
@@ -0,0 +1,24 @@
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 2025 by Denys Vlasenko <vda.linux@googlemail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+#include "yescrypt/alg-yescrypt.h"
+
+static char *
+yes_crypt(const char *passwd, const char *salt_data)
+{
+        /* prefix, '$', hash, NUL */
+        char buf[YESCRYPT_PREFIX_LEN + 1 + YESCRYPT_HASH_LEN + 1];
+        char *retval;
+
+        retval = yescrypt_r(
+                        (const uint8_t *)passwd, strlen(passwd),
+                        (const uint8_t *)salt_data,
+                        buf, sizeof(buf));
+        /* The returned value is either buf[], or NULL on error */
+
+        return xstrdup(retval);
+}